BMW vehicles are prone to oil separators freezing in cold weather if driven before the engine is fully warmed up. This can lead to a howling noise followed by multiple oil leaks. The crankcase breather valve vents oil vapor from the engine block to the valve cover, but condensation can sometimes cause it to freeze, leading to a failure of the entire oil separator system, causing it to crack and break down.
To prevent damage to your engine, it’s best to replace all components of the oil separator system at once. Replacing everything ensures reliable performance and durability.
Remember to also order a valve cover gasket to make the replacement process easier.
BMW vehicles are prone to oil separators freezing in cold weather if driven before the engine is fully warmed up. This can lead to a howling noise followed by multiple oil leaks. The crankcase breather valve vents oil vapor from the engine block to the valve cover, but condensation can sometimes cause it to freeze, leading to a failure of the entire oil separator system, causing it to crack and break down.
To prevent damage to your engine, it’s best to replace all components of the oil separator system at once. Replacing everything ensures reliable performance and durability.
Remember to also order a valve cover gasket to make the replacement process easier.
Prop 65 Warning
Cross Reference
314 036 0022
11 61 7 533 400
7 533 400
Product Q&A
Lifetime Replacement
This product is not eligible for Lifetime Replacement
Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
BMW
E39
525i
M54 2.5L
Use vehicle selector to confirm fitment
BMW
E39
530i
M54 3.0L
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
*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.
Prop 65 Warning
