We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.
Other items to consider replacing at the same time are the radiator cap, coolant level sensor, lower radiator hose, coolant temp sensor, and the hose clamps. If your car has an automatic transmission you should also replace the oil cooler thermostat in the radiator frame, which is a common source for leaks.
As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.
Other items to consider replacing at the same time are the radiator cap, coolant level sensor, lower radiator hose, coolant temp sensor, and the hose clamps. If your car has an automatic transmission you should also replace the oil cooler thermostat in the radiator frame, which is a common source for leaks.
As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
Prop 65 Warning
Previous Revisions
17117573781
17117573781
17117573781
Cross Reference
17137787039
118 06057500
314 223 0000
17 11 7 573 781
7 573 781
7 573 751
17 11 7 573 751
7 787 039
2 247 553
17 13 7 787 039
17 13 2 247 553
17 11 1 436 413
1 436 413
Product Q&A
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Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
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
328Ci
M52 2.8L
Use vehicle selector to confirm fitment
BMW
E46
328i
M52 2.8L
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
325xi
M54 2.5L
Use vehicle selector to confirm fitment
BMW
E46
325i
M54 3.0L
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
E53
X5
M54 3.0L
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
*The above product applications have been written by Turner Motorsport. All
warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
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