BMW Cooling System Parts & Accessories for BMW 1 Series E82 (2008-2013)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Precision Raceworks - Corporate Logo
T#:38094360
Part#: 601-0003
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$ 24.99 USD
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The Black Market Parts (by Precision Raceworks) BMW Billet Coolant Flange was designed as a replacement for the factory plastic flange that is found in the hose that connects the thermostat to the cylinder head. The plastic flange commonly cracks, which leads to coolant loss and engine overheating. Replace your coolant flange before disaster occurs and leaves you stuck on the side of the road.
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ECS Tuning Aluminum Coolant Bleeder Screw
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ECS - Corporate Logo
T#:363070
Part#: 003530ECS01A
In Stock
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Replace the flimsy plastic bleeder screw used in the coolant expansion tank or in one of the cooling system hoses with this high quality, durable, aluminum bleeder screw. The stock plastic screw can deform over time due to heat or even regular use. We have even seen the head of the screw snap off, leaving the threaded body stuck in the expansion tank. This aluminum screw will help to prevent sudden failure of the bleeder screw, which can result in immediate overheating of the car.

ECS Tuning's Aluminum Coolant Bleeder Screw replaces Genuine BMW Part Number 17111712788

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ECS - Corporate Logo
T#:556105
Part#: 024797ECS01
In Stock
Sale - Save 25% $ 76.99

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Some of the biggest issues when owning a BMW can come from cooling system components. Even through years of improvement, the same failure is seen with the plastic fittings and adapters from years of hot to cold temperature fluctuation. The N52/N54/N55/N20 engine sees failure at the plastic cylinder head outlet adapter connecting the cylinder head to the thermostat hose. The stock plastic adapter simply shears off at the end of the barbed fitting, creating a massive coolant leak. The engineering team at ECS Tuning decided a billet aluminum piece was a much better option to contend with the temperature fluctuation. Since other offerings on the market want you to modify your OE hose to be reused, they even developed a silicone replacement hose. These 2 pieces can be purchased separately if you decide to reuse your existing OE hose or in a package kit together for a single click upgrade. Features: Manufactured from billet 6061-T6 with type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic ​​Will not become brittle and fatigued over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Follows OEM form for perfect fitment. Utilizes (and includes) OEM O-ring 11537545278 to ensure a proper seal. Recommended clamp size is 25-40mm
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ECS - Corporate Logo
T#:640062
Part#: 008286LA01
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When it comes to cooling system hose replacement, the "U" shaped hose connecting the water pump to the thermostat is usually the first to fail. A lot of this comes from its close proximity to the hot downpipes, while some of this failure comes from the sharp bends in the hose. 

Why not upgrade when you're due for a replacement? The ECS Tuning silicone hose replacement fixes these issue with two key features in their design. Offering this hose in a much more heat resistant silicone instead of OE rubber and having the hose wrapped in aluminum. The aluminum coating acts as a heat shield to further protect the silicone as well as reducing the temperatures forced on the coolant running through the hose. 

Replaces OE hose #11537545665

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Precision Raceworks - Corporate Logo
T#:38229115
Part#: 622-0079
In Stock
$ 69.99 USD
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The E9X / E8X Coolant Tank & Power Steering Bracket w/ Harness is all of the hardware necessary to relocate your power steering pump and install a factory coolant tank on the driver's side of your vehicle. These are the same high-quality components that are included with our E9X/ E8X relocated inlet kits.
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N54 3.0L ECS Silicone Coolant Outlet Hose
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ECS - Corporate Logo
T#:555020
Part#: 025216ECS01
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Upgrade your cooling system with durable silicone hoses that offer extended life and enhanced heat tolerance. Say goodbye to stock limitations and opt for silicone hoses that retain OEM fitment while overcoming typical OEM hose flaws. These hoses are designed to resist deterioration and softening due to coolant heat cycles, ensuring prolonged longevity compared to traditional rubber hoses.

Specifically, this hose connects from the thermostat housing outlet to the front of the cylinder head. Its features include:

  • Inclusive of both upper and lower clamps for easy installation.
  • Crafted from 4-Ply reinforced silicone, ensuring superior durability compared to OE rubber hoses that are prone to failure.
  • Internal layer lined with Flourosilicone for exceptional chemical resistance.
  • Silicone construction provides reduced thermal conductivity, enhanced resistance to ozone, and UV degradation, thereby boosting overall performance and longevity.
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BMW E8X E9X Billet Aluminum Radiator Drain Plug
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ECS - Corporate Logo
T#:367075
Part#: 013197ECS01A
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Ensure your BMW's cooling system stays in top shape with ECS Tuning's Billet Aluminum Radiator Drain Plug. Designed specifically for late-model 1-Series and 3-Series BMWs, this replacement plug addresses the common issue of weak plastic drain plugs. Constant exposure to engine heat and road debris makes the plastic plugs brittle, leading to frustration with broken plugs. ECS Tuning's billet aluminum alternative puts an end to these problems.

  • Durable Replacement: Say goodbye to weak plastic drain plugs.
  • Enhanced Material: Billet aluminum provides superior strength and longevity.
  • Deeper Screw Head: Accommodates Phillips head or flat head screwdrivers for better engagement.
  • Reduced Stripping Risk: Minimize the chance of stripping out the screw head.

Don't let cooling system maintenance be a hassle. Order ECS Tuning's Billet Aluminum Radiator Drain Plug now and experience worry-free service.

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Race German - Corporate Logo
T#:6827887
Part#: RGCTSAM12
Ships in 2 Business Days
$ 35.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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ECS - Corporate Logo
T#:19825274
Part#: 008640LA02
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Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps.

Upgrade all of those common, aging, dry-rotted rubber hoses under the hood of your vehicle with ECS durable, Silicone Radiator Coolant Hose Set. These perform and look great within any engine bay, they are made to last longer than standard rubber hoses and are perfectly molded to the OE hose specifications for a simple installation on most vehicles.

Made from heavy duty, reinforced silicone, this silicone coolant hose set can handle higher temperatures and greater pressure than the stock, squishy rubber hoses. Designed to resist oil, fuel and electrochemical degradation and tested up to continuous 250° Fahrenheit operating temperature and over 45psi, you can expect to achieve greater reliability, less turbulence and improved flow with our smooth silicone hoses.

Kit contents:

Upper Radiator hose
Lower Radiator hose
4 factory flange connections
German-style stainless steel hose clamps
With the smoother internal passageways, consistent hose internal diameters, and smoother bends will result in improved flow for greater cooling system performance with added durability.

The perfect way to take the worry out of your coolant hoses and keep your engine from potentially overheating.

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Race German - Corporate Logo
T#:6827888
Part#: RGCTSA1/8NPT
In Stock
$ 35.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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70-78mm - T-Bolt Hose Clamp - Priced each
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ECS - Corporate Logo
T#:380416
Part#: 003402ECS07A-03
In Stock
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Ensure a tight and leak-free seal in your BMW's cooling, vacuum, or intake systems by installing a new adjustable hose clamp. Over time, clamps can deform or lose their tightness due to aging or frequent removal, potentially causing leaks in your coolant or vacuum hoses. Avoid the risk of leaks by replacing old clamps with new hardware, offering peace of mind against coolant and vacuum system issues.

Key benefits of the adjustable hose clamp include:

  • Maintaining a secure and leak-free seal in your BMW's systems.
  • Preventing coolant or vacuum leaks that can affect performance.
  • Adjustable size from 70mm to 78mm for versatile applications.

Upgrade your hose clamps to ensure optimal performance and reliability in your BMW's systems.

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VTT Complete Blue N54 Coolant Hose Kit
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Vargas Turbo Technologies - Corporate Logo
T#:17771579
Part#: VTT-N54-COOLANTB
In Stock
$ 464.99 USD
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Upgrade your BMW N54's cooling system with VTT's Billet/Silicone coolant hose upgrade kit. Designed to address common issues with factory plastic connectors and standard coolant hoses, this kit offers premium enhancements for durability and performance. Crafted with Billet 6061-T6 connectors for corrosion resistance and 6-ply molded silicone hoses in factory shapes, it ensures reliability and longevity for your BMW's cooling system.
  • Upgraded Billet 6061-T6 connectors for enhanced durability
  • Corrosion-resistant black anodized finish
  • 6-ply molded silicone hoses for superior performance
  • Factory-shaped design for easy installation
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Vargas Turbo Technologies - Corporate Logo
T#:22987117
Part#: VTT-N54-COOLANTR
Ships in 6 Business Days
$ 464.99 USD
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VTT is proud to announce our N54 Billet/Silicone coolant hose upgrade kit! The factory plastic coolant connectors are prone to breaking over time, and the hoses are just your standard run of the mill coolant hose. We wanted to provide an upgrade to both areas. What we came up with is Billet 6061-T6 connectors anodized black for corrosion resistance, and 6 ply silicone molded silicone hoses in the factory shapes. Full hose kit includes: Upper Radiator hose Lower Radiator hose Cylinder head outlet hose (Mickey Mouse hose, this hose is notorious for breaking when removed) Upper vent hose (this hose is also notorious for breaking as stock the center is plastic that crumbles when moved) Water pump inlet hose (Horse Shoe hose)
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DO88 - Corporate Logo
T#:13793026
Part#: WC370
In Stock
$ 642.99

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$ 642.99

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The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your N54/N55 engine. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 29% increase in core volume and a 3% larger frontal surface area, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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Precision Raceworks - Corporate Logo
T#:38161689
Part#: 201-0393-BLU
In Stock
$ 109.99 USD
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BMW Blue Engine Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Constructed from high-quality billet aluminum, this cap replaces the flimsy plastic factory cap, offering improved durability and a sleek, high-performance aesthetic.

Designed with precision, this coolant reservoir cap incorporates the OEM pressure relief function to maintain proper cooling system operation. Unlike inferior stick-on covers that may loosen over time, this cap is a complete replacement, ensuring a secure, leak-free fit. The blue anodized finish provides superior corrosion resistance, making it a reliable upgrade for daily drivers and track enthusiasts alike.

  • OEM pressure relief function – Ensures proper cooling system performance and safety
  • Billet aluminum construction – Provides enhanced durability and strength over factory plastic caps
  • Direct-fit replacement – Fully replaces the stock cap for a precise, secure fit
  • Blue anodized finish – Resists corrosion, heat, and wear for long-lasting performance
  • Motorsport-inspired design – Adds a sleek, professional look to the engine bay
  • Built for longevity – Engineered to withstand extreme temperatures and coolant exposure

Upgrade your BMW’s cooling system with the BMW Blue Engine Coolant Reservoir Cap, designed for superior reliability and style.

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DO88 - Corporate Logo
T#:14155764
Part#: KIT222S
In Stock
$ 687.99 USD
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These hoses are entirely manufactured in high quality silicone for best finish and durability. With three to five layers of armory, depending of the inner diameter, the hoses withstand high pressure rates and high temperatures for a long time. The original hoses are manufactured in rubber that not seldom cracks from age. This is the durable solution for you that in addition improves the looks!
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AUTOTECKNIC - Corporate Logo
T#:39497984
Part#: BM-0803-GC
Ships in 7 Business Days
$ 74.99 USD
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Turner Motorsport offers the AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbon as the perfect addition for BMW owners looking to elevate their engine bay’s appearance with premium materials and precision engineering.
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Precision Raceworks - Corporate Logo
T#:38161688
Part#: 201-0393-BLK
Ships in 9 Business Days
$ 109.99 USD
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BMW Black Engine Coolant Reservoir Cap is a premium upgrade designed to enhance both the functionality and aesthetics of your BMW’s engine bay. Unlike flimsy plastic OEM caps, this high-performance cap is CNC-machined from durable billet aluminum, providing long-lasting strength and a sleek, motorsport-inspired look.

Built with precision, this cap retains the essential OEM pressure release function, ensuring proper cooling system operation without compromise. Unlike inferior adhesive covers that may detach over time, this cap fully replaces the factory component, delivering a secure and reliable fit. With a corrosion-resistant black anodized finish, it withstands extreme temperatures and harsh conditions while elevating your BMW’s under-hood appearance.

  • OEM pressure regulation – Maintains factory-designed pressure release for optimal cooling performance
  • CNC-machined billet aluminum – Provides exceptional durability and long-term reliability
  • Direct replacement – Fully replaces the stock cap, ensuring a perfect fit without modifications
  • Corrosion-resistant anodized finish – Prevents wear and adds a stealthy, high-performance look
  • Heat and fluid-resistant design – Built to withstand extreme temperatures and coolant exposure
  • Enhanced engine bay styling – Offers a sleek, motorsport-inspired upgrade

Upgrade your BMW’s cooling system with the BMW Black Engine Coolant Reservoir Cap, designed for superior performance and long-lasting durability.

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Precision Raceworks - Corporate Logo
T#:38094357
Part#: 601-0055
Ships in 5 Business Days
$ 39.99 USD
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This driver-side coolant tank mounting bracket set is ideal for those with relocated inlets or single turbo kits. It enables you to reposition your factory coolant tank to the driver's side of the engine bay. Best of all, it’s fully compatible with all known charge pipes.
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3/8"/9mm Band Hose Clamp - 50-70mm
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ECS - Corporate Logo
T#:341684
Part#: 003402ECS06A-12
In Stock
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Elevate your BMW maintenance with ECS Tuning's 304 stainless steel hose clamps, offering convenience and top-quality performance at an affordable price. Designed with various band widths and German-style T-bolts for adjustable sizing, these hose clamps ensure a secure fit for your specific diameter needs. Skip the dealership wait and excessive pricing; ECS Tuning provides reliable, dealership-quality hose clamps without the premium cost, ensuring your car receives the care it deserves.
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40-60mm 3/8"/9mm Band Hose Clamp
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ECS - Corporate Logo
T#:341280
Part#: 003402ECS06A-08
In Stock
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$ 2.99 USD
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ECS Tuning 304 Stainless Steel Hose Clamps

Revolutionize your car maintenance with ECS Tuning's premium 304 stainless steel hose clamps. Eliminate dealership delays and inflated prices! These German-style clamps utilize T-bolts for hassle-free diameter adjustment. With various band widths available, these durable clamps ensure reliability without the hefty cost. Experience dealership-quality products at affordable rates, exclusively at ECS Tuning.

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70-90mm 3/8"/9mm Band Hose Clamp
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ECS - Corporate Logo
T#:363017
Part#: 003402ECS06A-11
In Stock
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Upgrade your BMW with ECS Tuning's Stainless Steel Hose Clamps, designed for convenience and durability. With various band widths and German-style T-bolts, these clamps offer easy adjustment to your required diameter. Say goodbye to dealer pricing and enjoy the quality you love at ECS Tuning.

  • Full stainless steel construction
  • Various band widths available
  • German-style T-bolts for easy adjustment
  • Convenient solution for hose clamp replacement
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1/2"/12mm Band Hose Clamp - 25-40mm - Priced Each
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ECS - Corporate Logo
T#:385425
Part#: 003402ECS05A-06
In Stock
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Upgrade Your BMW Maintenance with Stainless Steel Hose Clamps from ECS Tuning

ECS Tuning introduces premium full stainless steel hose clamps, offering superior quality and convenience for your BMW maintenance. Avoid dealership delays and overpricing by choosing from a selection of band widths, ensuring you receive top-quality hose clamps without overpaying.

Key Benefits:

  • Premium full stainless steel hose clamps
  • Various band widths for enhanced convenience
  • High-quality alternative to dealership pricing
  • Readily available stock eliminates waiting time
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Band Hose Clamp | 12-20mm 3/8"/9mm
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ECS - Corporate Logo
T#:304266
Part#: 003402ECS06A-03
In Stock
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Secure hoses in your BMW effortlessly with the ECS 3/8" / 9mm Band Hose Clamp (12-20mm). Specifically designed for BMW models, this clamp ensures a snug fit and reliable hold for hoses measuring between 12mm to 20mm. Crafted with durable materials, these clamps provide exceptional resistance against leaks and are ideal for various automotive applications. Upgrade your BMW's hose security with these reliable ECS hose clamps.
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Precision Raceworks - Corporate Logo
T#:1332002
Part#: 201-0050
In Stock
$ 19.99 USD
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The E9X/ E8X coolant tank level sensor extension harness is the same great product that comes standard with Precision Raceworks' E9X/ E8X relocated inlet kits. The coolant tank level sensor extension harness is perfect for those running a relocated coolant reservoir tank or 335D coolant reservoir. This harness plugs right into the factory connector allowing you to extend the position of the sensor without the need to splice any wires.
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60-80mm 1/2"/12mm Band Hose Clamp
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ECS - Corporate Logo
T#:377836
Part#: 003402ECS05A-10
In Stock
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ECS Tuning Stainless Steel Hose Clamps for BMW

Upgrade your BMW's hose clamps with ECS Tuning Stainless Steel Hose Clamps, designed for convenience and durability. Say goodbye to long waits and overpriced dealership clamps. With various band widths available, these stainless steel clamps ensure a secure fit for your vehicle's hoses.

Benefits:

  • Convenient replacement for worn-out hose clamps
  • Made of durable stainless steel for long-lasting performance
  • Available in various band widths for versatile use
  • Affordable alternative to dealership pricing
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77-85mm - 3/4" Band Hose Clamp
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ECS - Corporate Logo
T#:377877
Part#: 003402ECS07A-05
In Stock
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$ 19.49 USD
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Upgrade your BMW's hose clamps with the 77-85mm - 3/4" Band Hose Clamp from Turner Motorsport. These full 304 stainless steel clamps offer convenience and quality without the dealership price tag. German-style T-bolts allow for easy adjustment to your required diameter, ensuring a secure fit every time.

  • Made of durable 304 stainless steel for long-lasting performance
  • German-style T-bolt design for easy size adjustment
  • Convenient band widths for versatile applications
  • Quality alternative to dealership pricing
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90-110mm 3/8"/9mm Band Hose Clamp
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ECS - Corporate Logo
T#:341281
Part#: 003402ECS06A-13
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$ 4.19 USD
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ECS Tuning 304 Stainless Steel Hose Clamps

Once again, ECS Tuning has found a way to make life easier for working on your car. Need new hose clamps but don't want to wait to order it from the dealership or pay more than you should for a hose clamp? That's where we come in! These are full 304 stainless steel hose clamps with various band widths for your convenience. They are German style using T-bolts to adjust in size to your required diameter. Never pay dealer pricing again, but still get the quality you love here at ECS Tuning.

  • Made from high-quality 304 stainless steel for durability
  • German-style design with T-bolts allows for easy size adjustment
  • Various band widths for versatile use
  • Avoid dealership pricing without compromising on quality
  • Perfect for BMW enthusiasts seeking affordable yet reliable hose clamps
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Hose Clamp 2 5/16" - 3 1/4" - priced each
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ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
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Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

  • Versatile and reliable solution for various applications
  • Superior strength and corrosion resistance
  • Adjustable design for a snug fit
  • Reduces risk of leaks for optimal performance
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Precision Raceworks - Corporate Logo
T#:38161691
Part#: 201-0393-SIL
Ships in 8 Business Days
$ 109.99 USD
Free Shipping on orders $49 and up

BMW Silver Engine Coolant Reservoir Cap is a premium upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Crafted from high-strength billet aluminum, this cap replaces the factory plastic version, offering superior durability and a refined, professional look.

Designed with functionality in mind, it integrates the OEM pressure relief system to ensure your engine's cooling system remains safe and efficient. Unlike adhesive covers, which can peel or wear over time, this cap is a direct-fit replacement, providing a secure and leak-proof seal. The silver anodized finish not only enhances the visual appeal but also ensures resistance to corrosion, high temperatures, and wear, making it perfect for daily driving and track use.

  • OEM pressure relief integration – Maintains proper cooling system performance and reliability
  • Durable billet aluminum – Outperforms factory plastic caps in longevity and strength
  • Precision-machined for perfect fitment – Replaces the stock cap securely, not just a cover
  • Anodized silver finish – Offers corrosion, heat, and wear resistance
  • Elevates engine bay aesthetics – Adds a clean, professional appearance
  • Built for both street and track use – Designed to withstand extreme conditions

Enhance your BMW’s cooling system with the BMW Silver Engine Coolant Reservoir Cap, providing both style and functionality for years to come.

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Coolant Expansion Tank
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:54959296
Part#: 314 223 0004
Ships on Sep 22, 2026
New Item
$ 75.99 USD
Free Shipping on orders $49 and up
This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.
2 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:33412932
Part#: 61132359999
In Stock
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:639833
Part#: 13621433076
In Stock
Sale - Save 20% $ 14.99

This product was last offered at the strikethrough price on
05-03-2026

$ 11.99 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 14.99

This product was last offered at the strikethrough price on
05-03-2026

$ 11.99 USD
Free Shipping on orders $49 and up
This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Fluid Level Sensor
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5973204
Part#: 17117546548
Ships on Sep 17, 2026
$ 13.99 USD
Free Shipping on orders $49 and up
MEYLE-ORIGINAL: True to OE fluid level sensor. Used in multiple locations. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 17117546548
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Meyle - Corporate Logo
T#:40478168
Part#: 11537516414
Ships on Sep 17, 2026
$ 7.99 USD
Free Shipping on orders $49 and up
This Meyle component offers OEM-level fit and function for hassle-free installation and dependable cooling system performance.
Meyle Coolant Hose - BMW N52 3.0L
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:35829327
Part#: 11537521049
Ships on Sep 17, 2026
$ 19.99 USD
Free Shipping on orders $49 and up
Over time, coolant hoses in your vehicle can deteriorate due to prolonged exposure to high temperatures from the coolant. Made of reinforced rubber, these hoses are prone to issues such as splitting at hose clamps, swelling, cracking, or even breaking, which can leave you stranded. It's important to replace them at the first sign of wear to prevent coolant loss and ensure your engine stays properly cooled.
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Coolant Thermostat
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:55461389
Part#: 11537549476
Ships on Sep 17, 2026
New Item
$ 81.99 USD
Free Shipping on orders $49 and up
This Meyle coolant thermostat provides a refresh for your thermal management system, keeping your engine operating exactly where the engineers intended.
Electric Water Pump
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:54959290
Part#: 313 220 0017
Back Ordered
New Item
$ 326.99 USD
Free Shipping on orders $49 and up
Whether you are daily driving or doing a preventative cooling overhaul, this high-quality replacement pump includes fresh mounting hardware to ensure your BMW's cooling system remains reliable.