Functional and stunningly stylish way to add a nice touch to any engine bay!
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Allows you to relocate your coolant reservoir or run the 335d reservoir
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps!
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Includes everything you need to bolt on a brand new expansion tank
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
2713373
Mfg#:
17137640515KT
In Stock
$225.99
This product was last offered at the strikethrough price on 06-08-2026
Upgrade to AutoTecknic’s Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover and give your BMW the exclusive, high-performance look it deserves.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Includes level sensor
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Brand:
ES#:
2586401
Mfg#:
17137607482
Ships in 1 Business Day
$152.99
This product was last offered at the strikethrough price on 05-07-2026
Dress Up Your BMW's Engine Bay With MMX's Billet Expansion Tank Cap!
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Includes level sensor and cap
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Allows you to relocate your factory coolant tank to the driver's side of the engine bay
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Designed to meet strict original equipment specifications, this tank is an essential preventive maintenance item or an instant fix for a cracked reservoir.
5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
JL Germany
ES#:
3673297
Mfg#:
17137553919
In Stock
ON SALE!
SAVE 20%
$14.99
This product was last offered at the strikethrough price on 08-12-2026
Keep that coolant expansion tank sealed
5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Be sure your cooling system is up to the task
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
5527493
Mfg#:
EWTRPMPPIEBRPRKT
Ships in 1 Business Day
ON SALE!
$665.99
This product was last offered at the strikethrough price on 10-26-2026
A common source of overheating problems is a broken or leaking coolant expansion tank. Replace it with an OEM coolant expansion tank or quality aftermarket expansion tank to prevent future woes.
