Bavarian Autosport Bav Auto Expansion Tank Cap - E36 E46 E34 E39 E32 E38 E65 X3 X5 Z4 17117639022

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

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.
Bavarian Autosport Bavarian Autosport
T#: 640208 | Part#: 17117639022
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SALE: $11.89 (15% OFF)
WAS: $13.99 on 06-03-2026

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

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Bavarian Autosport Bav Auto Expansion Tank Cap - E36 E46 E34 E39 E32 E38 E65 X3 X5 Z4 17117639022
Bav Auto Expansion Tank Cap - E36 E46 E34 E39 E32 E38 E65 X3 X5 Z4
$11.89

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.

 

Prop 65 WarningProp 65 Warning

Cross Reference
  • 17111742231
  • 17111742232

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If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW E30 318i M10 1.8L Use vehicle selector to confirm fitment
BMW E30 318i M42 1.8L Use vehicle selector to confirm fitment
BMW E30 318is M42 1.8L Use vehicle selector to confirm fitment
BMW E31 840Ci M60 4.0L Use vehicle selector to confirm fitment
BMW E31 840Ci M62 4.4L Use vehicle selector to confirm fitment
BMW E31 850Ci M70 5.0L Use vehicle selector to confirm fitment
BMW E31 850Ci M73 5.4L Use vehicle selector to confirm fitment
BMW E31 850CSi S70 5.6L Use vehicle selector to confirm fitment
BMW E32 730i M60 3.0L Use vehicle selector to confirm fitment
BMW E32 735i M30 3.4L Use vehicle selector to confirm fitment
BMW E32 735iL M30 3.4L Use vehicle selector to confirm fitment
BMW E32 740i M60 4.0L Use vehicle selector to confirm fitment
BMW E32 740iL M60 4.0L Use vehicle selector to confirm fitment
BMW E32 750i M70 5.0L Use vehicle selector to confirm fitment
BMW E32 750iL M70 5.0L Use vehicle selector to confirm fitment
BMW E34 525i M20 2.5L Use vehicle selector to confirm fitment
BMW E34 525i M50 2.5L Use vehicle selector to confirm fitment
BMW E34 530i M60 3.0L Use vehicle selector to confirm fitment
BMW E34 535i M30 3.4L Use vehicle selector to confirm fitment
BMW E34 540i M60 4.0L Use vehicle selector to confirm fitment
BMW E34 M5 S38 3.5L Use vehicle selector to confirm fitment
BMW E36 318i M42 1.8L Use vehicle selector to confirm fitment
BMW E36 318i M44 1.9L Use vehicle selector to confirm fitment
BMW E36 318ic M42 1.8L Use vehicle selector to confirm fitment
BMW E36 318ic M44 1.9L Use vehicle selector to confirm fitment
BMW E36 318is M42 1.8L Use vehicle selector to confirm fitment
BMW E36 318is M44 1.9L Use vehicle selector to confirm fitment
BMW E36 318ti M42 1.8L Use vehicle selector to confirm fitment
BMW E36 318ti M44 1.9L Use vehicle selector to confirm fitment
BMW E36 320i M50 2.0L Use vehicle selector to confirm fitment
BMW E36 323i M52 2.5L Use vehicle selector to confirm fitment
BMW E36 323ic M52 2.5L Use vehicle selector to confirm fitment
BMW E36 323is M52 2.5L Use vehicle selector to confirm fitment
BMW E36 325i M50 2.5L Use vehicle selector to confirm fitment
BMW E36 325ic M50 2.5L Use vehicle selector to confirm fitment
BMW E36 325is M50 2.5L Use vehicle selector to confirm fitment
BMW E36 328i M52 2.8L Use vehicle selector to confirm fitment
BMW E36 328ic M52 2.8L Use vehicle selector to confirm fitment
BMW E36 328is M52 2.8L Use vehicle selector to confirm fitment
BMW E36 M3 S50 3.0L Use vehicle selector to confirm fitment
BMW E36 M3 S52 3.2L Use vehicle selector to confirm fitment
BMW E38 740i M60 4.0L Use vehicle selector to confirm fitment
BMW E38 740i M62 4.4L Use vehicle selector to confirm fitment
BMW E38 740iL M60 4.0L Use vehicle selector to confirm fitment
BMW E38 740iL M62 4.4L Use vehicle selector to confirm fitment
BMW E38 750i M73 5.4L Use vehicle selector to confirm fitment
BMW E38 750iL M73 5.4L Use vehicle selector to confirm fitment
BMW E39 525i M54 2.5L Use vehicle selector to confirm fitment
BMW E39 528i M52 2.8L Use vehicle selector to confirm fitment
BMW E39 530i M54 3.0L Use vehicle selector to confirm fitment
BMW E39 540i M62 4.4L Use vehicle selector to confirm fitment
BMW E39 M5 S62 5.0L Use vehicle selector to confirm fitment
BMW E46 323Ci M52 2.5L Use vehicle selector to confirm fitment
BMW E46 323i M52 2.5L Use vehicle selector to confirm fitment
BMW E46 325Ci M54 2.5L Use vehicle selector to confirm fitment
BMW E46 325i M54 2.5L Use vehicle selector to confirm fitment
BMW E46 325i M54 3.0L Use vehicle selector to confirm fitment
BMW E46 325xi M54 2.5L Use vehicle selector to confirm fitment
BMW E46 328Ci M52 2.8L Use vehicle selector to confirm fitment
BMW E46 328i M52 2.8L Use vehicle selector to confirm fitment
BMW E46 330Ci M54 3.0L Use vehicle selector to confirm fitment
BMW E46 330i M54 3.0L Use vehicle selector to confirm fitment
BMW E46 330xi M54 3.0L Use vehicle selector to confirm fitment
BMW E46 M3 S54 3.2L Use vehicle selector to confirm fitment
BMW E52 Z8 S62 5.0L Use vehicle selector to confirm fitment
BMW E52 Z8 Alpina M62 4.8L Use vehicle selector to confirm fitment
BMW E53 X5 M54 3.0L Use vehicle selector to confirm fitment
BMW E53 X5 M62 4.4L Use vehicle selector to confirm fitment
BMW E53 X5 M62 4.6L Use vehicle selector to confirm fitment
BMW E53 X5 N62 4.4L Use vehicle selector to confirm fitment
BMW E53 X5 N62 4.8L Use vehicle selector to confirm fitment
BMW E53 X5 All Use vehicle selector to confirm fitment
BMW E65 745i N62 4.4L Use vehicle selector to confirm fitment
BMW E65 750i N62 4.8L Use vehicle selector to confirm fitment
BMW E65 760i N73 6.0L Use vehicle selector to confirm fitment
BMW E65 760Li N73 6.0L Use vehicle selector to confirm fitment
BMW E65 B7 Alpina N62 4.4L Use vehicle selector to confirm fitment
BMW E66 745Li N62 4.4L Use vehicle selector to confirm fitment
BMW E66 750Li N62 4.8L Use vehicle selector to confirm fitment
BMW E66 760Li N73 6.0L Use vehicle selector to confirm fitment
BMW E83 X3 M54 2.5L Use vehicle selector to confirm fitment
BMW E83 X3 M54 3.0L Use vehicle selector to confirm fitment
BMW E83 X3 N52 3.0L Use vehicle selector to confirm fitment
BMW Z3 1.9 M44 1.9L Use vehicle selector to confirm fitment
BMW Z3 2.3 M52 2.5L Use vehicle selector to confirm fitment
BMW Z3 2.5 M52 2.5L Use vehicle selector to confirm fitment
BMW Z3 2.5i M54 2.5L Use vehicle selector to confirm fitment
BMW Z3 2.8 M52 2.8L Use vehicle selector to confirm fitment
BMW Z3 3.0i M54 3.0L Use vehicle selector to confirm fitment
BMW Z3 M Coupe S52 3.2L Use vehicle selector to confirm fitment
BMW Z3 M Coupe S54 3.2L Use vehicle selector to confirm fitment
BMW Z3 M Roadster S52 3.2L Use vehicle selector to confirm fitment
BMW Z3 M Roadster S54 3.2L Use vehicle selector to confirm fitment
BMW Z4 2.5i M54 2.5L Use vehicle selector to confirm fitment
BMW Z4 3.0i M54 3.0L Use vehicle selector to confirm fitment
BMW Z4 3.0i N52 3.0L Use vehicle selector to confirm fitment
BMW Z4 3.0Si N52 3.0L Use vehicle selector to confirm fitment
BMW Z4 M Roadster S54 3.2L Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.

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