BMW Cooling System Parts & Accessories for BMW E30 M3 S14 2.3L

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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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Turner OEM Water Hose Set - E30 M3
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:338252
Part#: 11531309667KIT
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This pacakge of six rubber cooling hoses for the E30 M3 includes most of the commonly replaced coolant lines on the S14. Set includes -
  • upper radiator hose from the large metal coolant pipe, #23 in the diagram
  • top thermostat hose to the large metal coolant pipe, #15 in the diagram
  • middle thermostat hose (T-shaped) to the small metal coolant pipe and to the water pump, #13 in the diagram
  • lower thermostat hose to the bottom of radiator, #22 in the diagram
  • lower radiator hose to coolant pipe, #24 in the diagram
  • expansion tank hose to the small metal coolant pipe, #17 in the diagram
    We use a mix if OE BMW and aftermarket hoses that we trust. This is the original E30 M3 Cooling Hose kit that we have been selling for 20 years. Looking for hose clamps too? We have OEM-style clamps for these too, select this in the options list below.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
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    Packaged by Turner - Corporate Logo
    T#:338650
    Part#: TMS16418
    Ships in 1 day
    Starting at $ 713.99 USD
    Starting at $ 713.99 USD
    This cooling package for the E30 M3 consists of all of the major components on the S14's cooling system. There are no major weak points to the E30's cooling system, unless you count skipped maintenance. The entire system is serviceable in individual components so you don't need to buy a complete package of parts. Many of the indivdual parts are on our site but we have setup this package to cover all or most of what you would need to perform a major overhaul. This overhaul package consists of an Genuine BMW radiator and then you build the package from there. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the Original BMW antifreeze to finish off the job.

    Any problems with the cooling system are likely electrical. Sensors become corroded and fail over time which will send the incorrect signal to the corresponding unit, including the engine computer. Diagnosis of electrical type problems is easy and repair with the OEM Bosch or OE BMW sensors is not too expensive for a car like this. Electrical connections, particularly solder joints, can also become brittle and fail. These are not helped by the intense vibrations of the S14.

    Top Turner Tip for a healthy S14!
    E30 M3s always seem to have cooling problems at the most inconvenient time. If the temp gauge starts rising in the summer months first check and make sure your auxiliary cooling fan is working if it's not it's most likely the switch or the wiring going to the switch. Also remember that the E30 instrument conductor plate can make the gauge read whacky try tapping the gauge if it seems like it's acting up. When it's time to do a water pump (which weeps through a hole on the bottom before it goes completely) take a good look at the radiator too its not expensive and you have to remove it to install the pump anyway.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1988-1991 E30 BMW M3
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    OEM Style Hose Clamps
    10X Entries Into Our F80 M3 Sweepstakes
    Turner Motorsport - Corporate Logo
    T#:338927
    Part#: HOSE-CLAMPS
    In Stock
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    Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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    Schwaben Coolant Refill/Air Purge Tool
    10X Entries Into Our F80 M3 Sweepstakes
    Schwaben - Corporate Logo
    T#:362940
    Part#: 003466SCH01
    In Stock
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    $ 87.99 USD
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    When it comes to BMW's we all know the weak point is commonly in the cooling system, many models proving hard to bleed the air pockets out after the refresh. The coolant refill tool solves this problem, ensuring that you get an air pocket free fill. The entire task is as simple as draining the system like normal, reinstalling the drain plugs and hooking the tool up to your refill location. The reason this tool works so well is due to the venturi valve, it converts air pressure from the compressor to vacuum inside the cooling system, then with a twist of a valve sucks coolant right into the system using the vacuum pressure.
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    Coolant Vacuum Purge & Refill Tool Set
    10X Entries Into Our F80 M3 Sweepstakes
    Schwaben - Corporate Logo
    T#:402498
    Part#: 024948SCH01A
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    The Schwaben Coolant Vacuum Fill Tool ensures no air pockets get into your cooling system while you're replacing your coolant - intended for use to refill your cooling system, not for removal. Can be used with Schwaben fluid extractors or with shop air - standard air compressor with a minimum rating of 90 PSI (6.2 bar). Includes all fittings and adapters necessary for use, with a molded storage case to keep your Schwaben Vacuum Fill Tool pristine for future use.
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    Bav Auto Spill-Proof Coolant / Antifreeze Funnel
    10X Entries Into Our F80 M3 Sweepstakes
    Bav Auto Tools - Corporate Logo
    T#:580395
    Part#: B8800082
    In Stock
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    Multiple adapters include to fit a variety of vehicles.

    Bav Auto Fan Clutch Wrench - 32mm
    10X Entries Into Our F80 M3 Sweepstakes
    Bav Auto Tools - Corporate Logo
    T#:580348
    Part#: B8800019
    In Stock
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    Used to remove your fan clutch
    Bav Auto Tools - Corporate Logo
    T#:580397
    Part#: B8800084
    In Stock
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    Radiator Pressure Tester Kit
    10X Entries Into Our F80 M3 Sweepstakes
    Schwaben - Corporate Logo
    T#:391482
    Part#: 014710SCH01A
    In Stock
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    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 154.49 USD
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    Are you refreshing your coolant system or having issues with coolant loss? An easy way to test your system for leaks and ensure you're able to maintain pressure without coolant loss is the Schwaben Cooling System Pressure Tester Kit.
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    Schwaben Locking Hose Pinch-Off Pliers
    10X Entries Into Our F80 M3 Sweepstakes
    Schwaben - Corporate Logo
    T#:379950
    Part#: 009787SCH01A
    In Stock
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    Schwaben Locking Hose Pinch-Off Pliers have adequate clamping force to effectively seal large or pressurized cooling system hoses. These pliers are ideal for clamping shut most hoses, ensuring reliability in your automotive tasks. With swivel jaws, they provide even clamping force, making them a versatile tool for various applications.

    • Adequate clamping force for large or pressurized hoses
    • Ideal for clamping shut most hoses
    • Swivel jaws ensure even clamping force
    • Versatile tool for automotive maintenance

    WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. For more information, visit http://www.p65warnings.ca.gov.

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    70-78mm - T-Bolt Hose Clamp - Priced each
    10X Entries Into Our F80 M3 Sweepstakes
    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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    Bav Auto Angled Hose Pinch Plier Set - 2pc
    10X Entries Into Our F80 M3 Sweepstakes
    Bav Auto Tools - Corporate Logo
    T#:580379
    Part#: B8800058
    In Stock
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    Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.
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    Coolant Level Sensor
    10X Entries Into Our F80 M3 Sweepstakes
    Bremmen Parts - Corporate Logo
    T#:30728984
    Part#: 61311378320
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    $ 15.29 USD
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    1/2"/12mm Band Hose Clamp - 25-40mm - Priced Each
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:385425
    Part#: 003402ECS05A-06
    In Stock
    Sale - Save 25% $ 4.99

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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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    70-90mm 3/8"/9mm Band Hose Clamp
    10X Entries Into Our F80 M3 Sweepstakes
    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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    60-80mm 1/2"/12mm Band Hose Clamp
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:377836
    Part#: 003402ECS05A-10
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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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    Band Hose Clamp | 12-20mm 3/8"/9mm
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:304266
    Part#: 003402ECS06A-03
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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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    77-85mm - 3/4" Band Hose Clamp
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:377877
    Part#: 003402ECS07A-05
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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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    Schwaben Radiator/ Intercooler Fin Comb
    10X Entries Into Our F80 M3 Sweepstakes
    Schwaben - Corporate Logo
    T#:384260
    Part#: 015326SCH01A
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    Straighten bent fins in heat exchangers like radiators, condensers, and intercoolers obstruct air flow and reduce heat transfer. Paper-thin fins are easily bent, even by slight pressure.
    90-110mm 3/8"/9mm Band Hose Clamp
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:341281
    Part#: 003402ECS06A-13
    In Stock
    Sale - Save 40% $ 6.99

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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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    3/8"/9mm Band Hose Clamp - 50-70mm
    10X Entries Into Our F80 M3 Sweepstakes
    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
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:341280
    Part#: 003402ECS06A-08
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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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    2 Pin Connector
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:33412932
    Part#: 61132359999
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    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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