Find my parts
Start by entering your car here
QuickFinder

Fitment matched to Australian-delivered models

Confirm fitment
Enter your vehicle to confirm this part fits your car.
QuickFinder
Find my parts
Viewing parts for your Your car 
  • Expansion Tank - Clickable Automotive

Expansion Tank

Replacement coolant expansion tank from OEM supplier Mahle.

Vehicle not set — enter your vehicle above to confirm this part fits before ordering.

$89Priced Individually — incl. GST

In stock at our Melbourne warehouse

Checking dispatch…

Reminder: Set your vehicle first for fitment guarantee
♡ Save to wishlist

Save parts to your wishlist

Keep a list of parts for your next service — free with an account.

New here? Create an account

Description

A brief lesson from the world of physics: heat causes the coolant in your cooling system to expand and contract, with the expansion tank in your BMW giving the coolant somewhere to go during heat cycles. Made from plastic, these tanks are exposed to incredible heat and pressures, causing the hose fittings and joins to fail without warning. With the high failure rate of ageing tanks, we recognise that the market has been flooded with notoriously cheap aftermarket replacements, which is why we choose to stock replacement expansion tanks from Mahle.

Helpful tips

Over time, overflow tank caps can mould to the shape of the old tank. Replacement of the cap is highly recommended with the purchase of a new tank to guarantee a proper seal.

Vehicle not set

to confirm fit and see fitment details.

How we work

Matched to Australian-delivered modelsNot a global catalogue. Every fitment is mapped to AU specifications.
One price, for everyoneOur price is our best and only price. No seasonal sales, no discount codes.
Carefully curated rangeNot every part we can find — only ones we'd fit ourselves.
OE and OEM-quality suppliersThe same manufacturers that supply the European factories.

Specifications

Manufacturer
MAHLE
Required per car
1

Part numbers

OEM
17137542986
Alternative
17137519219
Mahle
CRT 205 000S

Part numbers are provided for reference only. For correct compatibility to your vehicle, please follow our fitment advice.

Fitments

2 chassis groups · 9 fitments

Browsing all compatible vehicles — to confirm fit.