Select your vehicle
  1. Home
  2. BMW
  3. Coolant Expansion Tank

BMW M5 Coolant Expansion Tank Parts
OE
BMW Engine Coolant Expansion Tank Cap - Rein 17117639021

BMW Engine Coolant Expansion Tank Cap - Rein 17117639021

Expansion tank cap for the large expansion tank on your vehicle
525i, 525xi, 528i, 528i xDrive, 528xi, 530i, & more
Rein
17 Ratings
Available
In Stock
$16.69
OE
BMW Expansion Tank Cap - Mahle Behr 17117639022

BMW Expansion Tank Cap - Mahle Behr 17117639022

318i, 318is, 318ti, 323Ci, 323i, 323is, 325Ci, & more
Mahle Behr
49 Ratings
Available
In Stock
$14.69
OE
BMW Expansion Tank Cap - Rein 17117639022

BMW Expansion Tank Cap - Rein 17117639022

318i, 318is, 318ti, 323Ci, 323i, 323is, 325Ci, & more
Rein
41 Ratings
Available
In Stock
$14.35
OE
BMW MINI Engine Coolant Reservoir Cap - Febi Bilstein 17135A1BD89

BMW MINI Engine Coolant Reservoir Cap - Febi Bilstein 17135A1BD89

550i, 550i GT, 550i GT xDrive, 550i xDrive, 650i, & more
Febi Bilstein
2 Ratings
Available
In Stock
$9.59
BMW Engine Coolant Expansion Tank Cap - Febi Bilstein 17117639021

BMW Engine Coolant Expansion Tank Cap - Febi Bilstein 17117639021

Expansion tank cap for the large expansion tank on your vehicle
525i, 525xi, 528i, 528i xDrive, 528xi, 530i, & more
Febi Bilstein
Available
In Stock
$22.09
BMW Expansion Tank Cap - Gates 17112227683

BMW Expansion Tank Cap - Gates 17112227683

524td, M3, M5
Gates
Available
Ships in 2 business days
$8.09
MAP
BMW MINI Billet Engine Coolant Expansion Tank Cap - MMR Performance MMR03-1503

BMW MINI Billet Engine Coolant Expansion Tank Cap - MMR Performance MMR03-1503

Manufactured from T6061 billet aluminum and finished in a deep black anodized finish
750Li, Alpina B6 xDrive Gran Coupe, M6 Gran Coupe, & more
MMR Performance
Available
Ships in 4 business days
Ships Free
$127.70
MAP
BMW Billet Engine Coolant Expansion Tank Cap - MMR Performance MMR03-1502

BMW Billet Engine Coolant Expansion Tank Cap - MMR Performance MMR03-1502

Manufactured from T6061 billet aluminum and finished in a deep black anodized finish
535i GT xDrive, Alpina B7 xDrive, 650i xDrive, 740Li, & more
MMR Performance
Available
In Stock
Ships Free
$127.70
BMW Coolant Expansion Tank - Genuine BMW 17112229114

BMW Coolant Expansion Tank - Genuine BMW 17112229114

Genuine BMW replacement for your cracked expansion tank. Does not include an expansion tank cap.
M5, Z8
Genuine BMW
3 Ratings
Available
In Stock
Ships Free
$321.99
BMW Engine Coolant Expansion Tank - Genuine BMW 17137889450

BMW Engine Coolant Expansion Tank - Genuine BMW 17137889450

M8, M8 Gran Coupe, M5
Genuine BMW
Available
In Stock
Ships Free
$234.84
BMW Expansion Tank - Genuine BMW 17138610819

BMW Expansion Tank - Genuine BMW 17138610819

M5, M6, M6 Gran Coupe
Genuine BMW
Available
Ships in 3 business days
Ships Free
$223.99
BMW Expansion Tank - Genuine BMW 17112227091

BMW Expansion Tank - Genuine BMW 17112227091

M5
Genuine BMW
Available
In Stock
Ships Free
$209.99
BMW Expansion Tank - Genuine BMW 17112283345

BMW Expansion Tank - Genuine BMW 17112283345

M5, M6
Genuine BMW
Available
In Stock
Ships Free
$209.99
BMW Expansion Tank - Genuine BMW 16131177706

BMW Expansion Tank - Genuine BMW 16131177706

524td, 528e, 535i, 535is, M5
Genuine BMW
Available
Ships in 4-6 weeks
Ships Free
$191.99
Clearance
BMW Expansion Tank - Genuine BMW 17112225352

BMW Expansion Tank - Genuine BMW 17112225352

524td, M5
Genuine BMW
Available
Ships in 1 business day
Ships Free
$188.99
Clearance
BMW Engine Coolant Expansion Tank - Genuine BMW 17112284880

BMW Engine Coolant Expansion Tank - Genuine BMW 17112284880

M6, X5, M5, M6 Gran Coupe
Genuine BMW
Available
In Stock
Ships Free
$172.79
BMW Expansion Tank - Genuine BMW 16131179025

BMW Expansion Tank - Genuine BMW 16131179025

Position 1 in the diagram
525i, 525iT, 530i, 535i, 540i, 735i, 735iL, 740i, & more
Genuine BMW
Available
Ships in 4-6 weeks
Ships Free
$108.99
BMW Vent Pipe - Genuine BMW 17112226302

BMW Vent Pipe - Genuine BMW 17112226302

Position 7 in the Diagram
M5
Genuine BMW
Available
Ships in 3 business days
Ships Free
$81.99
BMW Cooling Water Compensation Tank Bracket - Genuine BMW 51717897897

BMW Cooling Water Compensation Tank Bracket - Genuine BMW 51717897897

M5, M6
Genuine BMW
Available
Ships in 4-6 weeks
Ships Free
$56.99
BMW Expansion Tank Hose Barb Fitting - Genuine BMW 11128626647

BMW Expansion Tank Hose Barb Fitting - Genuine BMW 11128626647

Located on the cylinder head, affixes the expansion tank hose in place, sold and priced each
545i, 550i, 550i GT, 550i GT xDrive, & more
Genuine BMW
Available
In Stock
$41.89
BMW Expansion Tank - Genuine BMW 21521117729

BMW Expansion Tank - Genuine BMW 21521117729

530i, 540i, 733i, 735i, L7, M5
Genuine BMW
Available
In Stock
$29.79
BMW MINI Engine Coolant Reservoir Cap - Genuine BMW 17135A1BD89

BMW MINI Engine Coolant Reservoir Cap - Genuine BMW 17135A1BD89

550i, 550i GT, 550i GT xDrive, 550i xDrive, 650i, & more
Genuine BMW
2 Ratings
Available
In Stock
$28.45
BMW Engine Coolant Expansion Tank Cap - Genuine BMW 17117639021

BMW Engine Coolant Expansion Tank Cap - Genuine BMW 17117639021

Expansion tank cap for the large expansion tank on your vehicle
525i, 525xi, 528i, 528i xDrive, 528xi, 530i, & more
Genuine BMW
8 Ratings
Available
In Stock
$27.94
BMW Expansion Tank Cap - Genuine BMW 17117639022

BMW Expansion Tank Cap - Genuine BMW 17117639022

318i, 318is, 318ti, 323Ci, 323i, 323is, 325Ci, & more
Genuine BMW
19 Ratings
Available
In Stock
$27.89
BMW Expansion Tank Cap - Genuine BMW 17112227683

BMW Expansion Tank Cap - Genuine BMW 17112227683

524td, M3, M5, M6
Genuine BMW
1 Rating
Available
In Stock
$27.19

Get help answering any questions you have

Contact Us
Special offers, news, & promos
© FCP Euro 2026. All rights reserved.  
Version: 17f35a90b : 53a503b7d08d6a1584b68d28b71f3ec1f789121f