Oiling System for BMW 3 Series E46 (1999-2005)

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Tasked with keeping everything properly lubricated, the oiling system is one of the most if not THE most fundamental parts of the engine. Make sure that everything is in good working order and flowing properly to ensure your engine has a long and trouble-free service life.

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Billet Aluminum Oil Dipstick - Polished - S54
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ECS - Corporate Logo
T#:384350
Part#: 009422ECS01-01
In Stock
Sale - Save 35% $ 103.99

This product was last offered at the strikethrough price on
11-07-2026

$ 67.59 USD
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$ 103.99

This product was last offered at the strikethrough price on
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$ 67.59 USD
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A beautiful addition and durable upgrade for your engine

Tired of staring at that bright red plastic oil dipstick? Waiting for a way to add a nice touch to your engine bay without going over the top? ECS Tuning is proud to announce our billet aluminum oil dipstick! Designed to OE specifications with an easy-to-read fill line, we offer three different finishes. Available in black, polished, or clear anodized, we have an offering for every type of enthusiast. Not only does it look better, but also performs better. Because of the durability, it is easier to insert than the factory ribbon dipstick. So, no more fighting with your dipstick to re-install it.

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ECS Billet Aluminum Oil Filter Cap - S50 S52 S54 M50 M42 M30 ...
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ECS - Corporate Logo
T#:637599
Part#: 005944LA01
In Stock
Sale - Save 15% $ 98.99

This product was last offered at the strikethrough price on
11-07-2026

$ 84.14 USD
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Sale - Save 15%
$ 98.99

This product was last offered at the strikethrough price on
11-07-2026

$ 84.14 USD
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This cap is designed to use the original O-ring seal so no special parts are required. The satin black anodize blends in with the rest of your engine bay making this a smart and subtle upgrade. Made in the USA!
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Mishimoto - Corporate Logo
T#:597051
Part#: MMOCCLA
In Stock
$ 127.99 USD
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$ 127.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto - Corporate Logo
T#:380389
Part#: MMOCF-BMW
In Stock
$ 88.99 USD
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$ 88.99 USD
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Install a custom oil cooler on your street or track BMW with help from the Mishimoto Oil Line Fitting Kit! This kit has 100% CNC-machined components, including the 6061 aluminum oil line fittings and the 303 stainless steel tie-down plate. This adapter kit is applicable for BMW E36 (Euro oil-housing equipped), E46, and E90 vehicles, and allows for the use of -10AN fittings to route oil to a custom oil cooler setup. This is an ideal upgrade for drivers seeking additional cooling for track environments or for those who would like additional engine bay space for an oil accumulator or supercharger setup. Included in this kit are two stock BMW O-rings for leak-free installation. Features: Allows for use of -10AN fittings for custom oil cooler setup 100% CNC-machined components, including 6061 aluminum fittings and 303 stainless steel tie-down plate Includes durable stock BMW O-rings for leak-free installation Provides additional engine bay space for applications with an oil accumulator or supercharger setup Included as part of the Mishimoto BMW E46 M3 Oil Cooler Kit Mishimoto Lifetime Warranty Included: (1) Stainless Steel Fitting Clamp (2) -10AN Fittings (2) BMW Oil O-rings (1) M8 x 1.25 x 25mm Button-Head Bolt Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov. ​
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Mishimoto - Corporate Logo
T#:372557
Part#: MMOCCCF
In Stock
$ 162.99 USD
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$ 162.99 USD
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Universal kit with a catch can and rubber hose; for retrofitting on a variety of vehicles. Carbon fiber catch can prevents a harmful buildup of oil inside of the turbocharger, intake manifold, intercooler and piping. Separates oil particles from PCV/CCV air Defends intercooler, intake system, and essential components from oil blow-by Made from lightweight carbon fiber Compact design makes for easy engine bay placement Checking fluid levels made easy with built in sight tube Comes complete with mounting bracket, hose, all necessary clamps, fittings, and mounting hardware Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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K&P Engineering - Corporate Logo
T#:402540
Part#: S21
Ships in 5 Business Days
$ 99.00 USD
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$ 99.00 USD
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Stainless steel filtration is not a new technology but is quickly gaining popularity in the automotive segment. With the ability to filter down as small as a paper filter element with the ability to be washed and reused!

The K&P Engineering filter element is made from medical grade, type 304 stainless steel micronic filter cloth to provide unmatched protection against oil contamination and resultant engine damage. A one inch square of this material flows an incredible 1.9 gallons of oil per minute at only 1 PSI pump pressure. The adhesive used in the filter assembly process is good to 600 degrees Fahrenheit, far above normal engine operating temperatures. A super strength nickel-plated neodymium rare earth magnet is installed in the top of the element for magnetic pre-filtering of the oil. The sophisticated bypass is engineered for proper differential pressures and consistent operation, delivering a greater percentage of filtered oil while being very easy to clean. The twist lock design assures positive filter element placement and allows for easy disassembly, inspection, and cleaning. The quad-ring gasket doubles the seal between the filter and the engine. Finally, the filter housing is carved out of solid 6061T6 billet aluminum, which not only looks trick but aids in dissipating heat.

K&P Engineering manufactures stainless steel filters for a vast array of engines around the world. Staying at the forefront of design and testing allows this company to offer a top-tier product for your European vehicle.

Features:

  • Consistent filtering across entire filter surface
  • Superior ASTMF316 filtration performance
  • 7 times the flow of comparable paper oil filters
  • Magnetic Prefiltering
  • Progressive rate bypass combined with high flow characteristics of the filter media avoids unfiltered oil bypassing the filter during cold startup and high rpm
  • No more cutting apart messy paper filters for trapped debris inspection
  • Proven in Motorsports, Military and Aerospace applications for years. Technology is FAA approved for use in aircraft. 

At regular oil changes, clean to K&P's specifications for continued used - a true lifetime filter.

This product fits the following BMWs:
1995 - 1999 E36 M3
2001 - 2006 E46 M3
1998 - 2002 E36/8 Z3 M Coupe
1998 - 2002 E36/7 Z3 M Roadster
2006 - 2008 E86 Z4 M Coupe
2006 - 2008 E85 Z4 M Roadster

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ECS Baffled Oil Catch Can System - E46 M3
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ECS - Corporate Logo
T#:394194
Part#: 015515ECS01-01KT
Ships on Apr 1, 2027
Sale - Save 20% $ 489.99

This product was last offered at the strikethrough price on
11-07-2026

$ 391.99 USD
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Sale - Save 20%
$ 489.99

This product was last offered at the strikethrough price on
11-07-2026

$ 391.99 USD
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Modern day emissions regulations require the use of a closed crankcase ventilation (PCV) system to recirculate combustion blow-by gases from the crankcase back in to the intake to be burned.  Unfortunately, these blow by gases contain water vapor (which is a byproduct of combustion) and pick up oil mist from and the windage cloud and cam lubrication system as they travel through the crank case.  Due to less than 100% effective air/oil separation in the stock PCV system, some oil mist and water vapor gets carried back to the intake tract and over time cause oil deposits in the intake manifold, intake ports, and on the back of intake valves.  All will eventually lead to poor performance and reduced fuel economy, and the presence of this oil mist in the intake charge may even increase the risk of engine-damaging detonation. 

With forced induction, track use, and/or extended high RPM usage, these symptoms increase as the factory PCV system is overwhelmed, and a catch can becomes a must for your E46 M3. This kit is a direct fit making this an easy reversal if desired as well as maintaining a clean appearance by utilizing the open "smuggler's compartment" on the passenger side of the engine bay.

ECS engineers developed a catch can that utilizes a strategically designed 4 chamber baffle plate system engineered to create multiple changes in the direction of airflow to cause oil droplets to fall out of suspension, maximizing the efficiency of the PCV air/oil separation.  A dipstick is integrated into the cap so you can monitor the oil level, and the can is easily serviced.  At each oil change simply unscrew the canister and empty the trapped oil with your regular used oil.  The ECS Oil Catch Can is CNC machined from billet 6061-T6 aluminum and with a stealthy black anodized finish for lasting durability and appearance, and includes everything needed for an OEM-like fully reversible installation.  

The ECS Oil Catch Can is made from aluminum and with a stealthy black anodized finish. The location is key as heat will evaporate the oil and send too much vapor back into the engine (where cooler air will turn it back into fluid). The ECS OCC also has a factory-like appearance. Having a kit designed specifically for your E46 M3 makes for a clean looking setup that any skill level mechanic can install. 

Note: Since the crankcase vent system is considered part of the overall emissions system, installing this may be a violation of local, state, and federal laws. While exemptions are made for track/race and off-road use, check with your local state inspection facility on using this in street-driven vehicles.

*Click here for installation instructions*

ECS Oil Catch Can Features:
+ Increases air intake efficiency
+ Promotes engine longevity
+ 4 chamber design promotes excellent air/oil separation
+ Large In/Out ports (no tapered sizes that slow flow)
+ Anodized black lightweight aluminum
+ Made in USA

This item fits the following BMWs
E46 M3 2001-2006

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Mishimoto Universal 10 Row Oil Cooler
For custom applications only. Not a direct bolt on.
Mishimoto - Corporate Logo
T#:378421
Part#: MMOCU
In Stock
$ 410.99 USD
Free Shipping
$ 410.99 USD
Free Shipping
This universal oil cooler from Mishimoto is far superior to the factory unit with its 11" x 2.76" x 1.97" core. Even under optimum driving conditions increased oil temperatures will cause a drop in pressure and will decrease the ability for your engine to be properly lubricated. With this new oil cooler, you can keep your oil temperatures down for optimum driving conditions. The kit includes 4 feet of stainless braided line, adapter fittings, and oil filter sandwich adapter. Mishimoto Automotive is a leading manufacturer of aftermarket performance cooling products. The company was established back in 2003 with one goal. That goal was to provide customers with quality cooling system upgrades that work on the track and on the road. At Mishimoto, you never have to worry about the quality of the product you are installing. This kit is universal and is not a direct bolt on. *For custom applications only. Not a direct bolt on. WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto 19 Row Universal Oil Cooler
For custom applications only. Not a direct bolt on.
Mishimoto - Corporate Logo
T#:378414
Part#: MMOCUL
In Stock at Vendor
9% off MSRP $ 531.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 482.99 USD
Free Shipping
9% off MSRP
$ 531.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 482.99 USD
Free Shipping
Even under optimum driving conditions increased oil temperatures will cause a drop in pressure and will decrease the ability for your engine to be properly lubricated. With this new oil cooler, you can keep your oil temperatures down for optimum driving conditions. The kit includes four-feet of stainless braided line, adapter fittings, and oil filter sandwich adapter. Rows: 19 Overall Dimensions: 13" x 5.5" x 2" Core Dimensions: 11.25" x 5.5" x 2" Braided Hoses: 4ft .75 inch & 4ft 9 inch Braided Hose Fittings: -10AN Sandwich Plate Fittings: -10AN WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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K&P Engineering - Corporate Logo
T#:402537
Part#: S37
Back Ordered
$ 119.00 USD
Free Shipping
$ 119.00 USD
Free Shipping

Stainless steel filtration is not a new technology but is quickly gaining popularity in the automotive segment. With the ability to filter down as small as a paper filter element with the ability to be washed and reused!

The K&P Engineering filter element is made from medical grade, type 304 stainless steel micronic filter cloth to provide unmatched protection against oil contamination and resultant engine damage. A one inch square of this material flows an incredible 1.9 gallons of oil per minute at only 1 PSI pump pressure. The adhesive used in the filter assembly process is good to 600 degrees Fahrenheit, far above normal engine operating temperatures. A super strength nickel-plated neodymium rare earth magnet is installed in the top of the element for magnetic pre-filtering of the oil. The sophisticated bypass is engineered for proper differential pressures and consistent operation, delivering a greater percentage of filtered oil while being very easy to clean. The twist lock design assures positive filter element placement and allows for easy disassembly, inspection, and cleaning. The quad-ring gasket doubles the seal between the filter and the engine. Finally, the filter housing is carved out of solid 6061T6 billet aluminum, which not only looks trick but aids in dissipating heat.

K&P Engineering manufactures stainless steel filters for a vast array of engines around the world. Staying at the forefront of design and testing allows this company to offer a top-tier product for your European vehicle.

Features:

  • Consistent filtering across entire filter surface
  • Superior ASTMF316 filtration performance
  • Magnetic Prefiltering
  • Progressive rate bypass combined with high flow characteristics of the filter media avoids unfiltered oil bypassing the filter during cold startup and high rpm
  • Easy inspection of engine contamination
  • Proven in Motorsports, Military and Aerospace applications for years. Technology is FAA approved for use in aircraft. 

At regular oil changes, clean to K&P's specifications for continued used - a true lifetime filter.

This part fits the following BMWs:
1991 - 1999 E36 Coupe 323i 325is 328i
1993 - 1999 E36 Convertible 323i 325i 328i
1990 - 1999 E36 Sedan 325i 328i 
1989 - 1995 E34 525i, 530i, 
1998 - 2004 E39 Touring 525i 528i 
1996 - 2004 E39 Sedan 525i 528i 530i 
1999 - 2001 E46 Convertible 323ci 325ci 330ci
2002-2006 E46 Convertible 325ci 330ci
1998 - 2001 E46 323ci 325ci 330ci M3
2002 - 2006 E46 325ci 330ci
1998 - 2001 E46 Touring 323i 325i
2002 - 2006 E46 Touring 325i 325xi
1998 - 2001 E46 Sedan 323i 325i 328i 330i
2002 - 2006 E46 Sedan 325i 325xi 330i 330xi
2000 - 2006 E53 X5 SUV X5 X5 3.0i 

 

 

 

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Billet Aluminum Oil Dipstick - Silver - S54 3.2L
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:384352
Part#: 009422ECS01-03
Ships on Mar 31, 2027
Sale - Save 40% $ 96.99

This product was last offered at the strikethrough price on
11-07-2026

$ 58.19 USD
Free Shipping
Sale - Save 40%
$ 96.99

This product was last offered at the strikethrough price on
11-07-2026

$ 58.19 USD
Free Shipping

ECS Tuning introduces the solution to your engine bay aesthetic concerns with the Billet Aluminum Oil Dipstick. Say goodbye to the bright red plastic eyesore and elevate your under-the-hood style effortlessly. Designed to OE specifications, this dipstick boasts an easy-to-read fill line and is available in three stunning finishes: black, polished, or clear anodized.

  • Billet aluminum construction for enhanced durability
  • Easy-to-read fill line for convenient oil level checks
  • Available in three finishes: black, polished, or clear anodized
  • OE specifications ensure a perfect fit
  • Improved ease of insertion compared to factory ribbon dipstick
  • Aesthetic enhancement for your engine bay

Upgrade your engine bay's appearance and functionality with the ECS Tuning Billet Aluminum Oil Dipstick. No more struggles reinstalling your dipstick; enjoy a sleek and high-performing addition to your vehicle.

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Oil Filter Housing Gasket Replacement Kit - With Billet Drain-Back Va...
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Packaged by Turner - Corporate Logo
T#:59954869
Part#: 060233LA01KT2
Ships on Dec 1, 2026
New Item
Sale - Save 15% $ 367.99

This product was last offered at the strikethrough price on
11-07-2026

$ 312.00 USD
Free Shipping
Sale - Save 15%
$ 367.99

This product was last offered at the strikethrough price on
11-07-2026

$ 312.00 USD
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Includes everything you need to reseal and upgrade your leaking oil filter housing gasket: gaskets, hardware, VANOS line, oil pressure switch, oil service kit, and our upgraded billet aluminum oil drain-back valve.

The Turner Motorsport Billet Oil Filter Housing Drain-Back Valve is designed as a direct-fit upgrade for your factory oil filter housing. CNC-machined from high-strength billet aluminum, this upgraded valve restores positive sealing to keep the oil filter housing fully primed. Maintaining this hydraulic prime ensures rapid oil pressure stabilization upon startup, directly mitigating dry-start bearing wear and top-end lifter starvation without requiring the purchase of a complete OEM housing assembly.

Features & Benefits:

Keeps the oil filter housing primed with oil to eliminate noisy dry startups Precision-machined, anodized billet aluminum check valve body with zinc-plated steel plunger and spring Maintenance-free sealed design engineered for lifetime durability Easy installation — pry the old one out and press the new one in during oil filter housing gasket service

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