BMW Coolant Expansion Tanks for BMW E36 (1992-1998) M3

Bav Auto Coolant Expansion Tank - E36 E39 Z3 M50 M52 S50 S52 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:638094

Part#: 17111723520

In Stock

Sale - Save 20% $ 39.99

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

$ 31.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 39.99

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

$ 31.99 USD

Add to Wish List

Replace your old expansion tank to prevent potential failure or leaks. Includes a brand new coolant level sensor. 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.

Show More Show Less

E36 Mishimoto Black Aluminum Coolant Expansion Tank

Direct fitment with the Mishimoto fan shroud. Modification may be required with the OEM shroud.

T#:383861

Part#: MMRT-E36-92EBK

Back Ordered

$ 195.99 USD

Add to Wish List

Qty

$ 195.99 USD

Add to Wish List

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it. Mishimoto provides a one time fix for this issue with their new aluminum expansion tank. Features: Constructed from aluminum to prevent future cracking Multi function aluminum dipstick w/ knurled head Utilizes factory mounting points, hardware, and sensor (s) Can be used with either Mishimoto or OEM radiator And of course this product come with Mishimoto's lifetime warranty WARNING! Prog 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.

Show More Show Less

Febi Coolant Expansion Tank - E36, E39, Z3

We Price Match - Give Us A Call or Chat!

T#:363759

Part#: 17111723520

Ships on Nov 25, 2026

$ 54.99 USD

Add to Wish List

Qty

$ 54.99 USD

Add to Wish List

Does not include cap or coolant level sensor

Mishimoto Essentials Bundle - BMW E36 3

T#:51039948

Part#: MMB-E36-001

Ships in 3 Business Days

$ 1,150.99 USD

Add to Wish List

Qty

$ 1,150.99 USD

Add to Wish List

Each part in this bundle is selected to improve the E36's fluid dynamics and thermal stability.

Bav Auto Expansion Tank Cap - E36 E46 E34 E39 E32 E38 E65 X3 X5 Z4 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:640208

Part#: 17117639022

In Stock

Sale - Save 15% $ 13.99

This product was last offered at the strikethrough price on
06-03-2026

$ 11.89 USD

Add to Wish List

Qty

Sale - Save 15%

$ 13.99

This product was last offered at the strikethrough price on
06-03-2026

$ 11.89 USD

Add to Wish List

This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap. 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.

Show More Show Less

Expansion Tank Cap - 1.4 Bar - E36 318i 323i 325i 328i M3

We Price Match - Give Us A Call or Chat!

T#:340717

Part#: 17111742232

In Stock

$ 24.99

This product was last offered at the strikethrough price on
06-18-2026

$ 15.99 USD

Add to Wish List

Qty

$ 15.99 USD

Add to Wish List

This expansion tank cap, from the E30 325is, is designed to give way at 20 PSI instead of 30 PSI, like the stock cap. In the event the system over-pressurizes, this cap should let go first, potentially saving your radiator, hoses, or other vital cooling system components. While there's no guarantee it will save your radiator, this small part could mean the difference between calling a tow service and making it home, and a little extra insurance never hurt. This cap is a high-quality aftermarket part from an OE supplier.

Fits the Following BMWs:

E36 318i 323i 325i 328i M3

Show More Show Less

Bav Auto Coolant Level Sensor - BMW E36 E39 M50/52 S50/52

For vehicles with production date from 06/1995

10X Entries Into Our F80 M3 Sweepstakes

T#:639793

Part#: 61318360855

In Stock

Sale - Save 19% $ 20.99

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

$ 16.99 USD

Add to Wish List

Qty

Sale - Save 19%

$ 20.99

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

$ 16.99 USD

Add to Wish List

This is the sensor / sending unit that notifies the computer if your coolant level is low. When this fails, it can give a false indication of low coolant -- or worse, not inform you of a low coolant situation that could potentially cause overheating. 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.

Show More Show Less

Coolant Level Sensor for Early E36 6-cyl, E34 525i

For vehicles with production date up to 06/1995

We Price Match - Give Us A Call or Chat!

T#:1612

Part#: 61311384739

In Stock

$ 16.99 USD

Add to Wish List

Qty

$ 16.99 USD

Add to Wish List

Coolant Level Sensor. Fits all E34 525i's with the M20 and M50 engine, E36 325 and M3, with a production date of May 1995 or earlier, and E36 328 with a production date of Feb. 1996 or earlier.

Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ti 318ic
1992-6/1995 E36 BMW 325i 325is 325ic M3
9/1995-3/1996 E36 BMW 328i 328is 328ici
1989-1995 E34 BMW 525i 525i Wagon

Show More Show Less

Febi Coolant level sensor - E36, E39

For vehicles with production date from 06/1995

We Price Match - Give Us A Call or Chat!

T#:382276

Part#: 61318360855

In Stock

Sale - Save 29% $ 18.22

This product was last offered at the strikethrough price on
05-14-2026

$ 12.99 USD

Add to Wish List

Qty

Sale - Save 29%

$ 18.22

This product was last offered at the strikethrough price on
05-14-2026

$ 12.99 USD

Add to Wish List

Monitors the coolant level in the expansion tank

OEM Rein Expansion Tank Cap - BMW E32 E34 E36 E38 E39 E46 & More ...

2X Entries Into Our F80 M3 Sweepstakes

T#:340541

Part#: 17111742231

Ships in 1 Business Day

$ 17.99 USD

Add to Wish List

Qty

$ 17.99 USD

Add to Wish List

This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

Show More Show Less

Project Cars

SELECT YOUR BMW

BMW Coolant Expansion Tanks for BMW E36 (1992-1998) M3

Bav Auto Coolant Expansion Tank - E36 E39 Z3 M50 M52 S50 S52 ...

E36 Mishimoto Black Aluminum Coolant Expansion Tank

Febi Coolant Expansion Tank - E36, E39, Z3

Mishimoto Essentials Bundle - BMW E36 3

Bav Auto Expansion Tank Cap - E36 E46 E34 E39 E32 E38 E65 X3 X5 Z4 ...

Expansion Tank Cap - 1.4 Bar - E36 318i 323i 325i 328i M3

Bav Auto Coolant Level Sensor - BMW E36 E39 M50/52 S50/52

Coolant Level Sensor for Early E36 6-cyl, E34 525i

Febi Coolant level sensor - E36, E39

OEM Rein Expansion Tank Cap - BMW E32 E34 E36 E38 E39 E46 & More ...

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results