Return Pipe

Runs from the intake manifold back to connecting hose
Mfg Part #
11617504536
ECS Part #
ES#4304670
Brand
Bavarian Autosport
12.71
$14.95 (Sale - Save 15%)
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Product Details

Runs from the front on the intake manifold back to a Y on a connecting hose at the rear of the intake manifold.

BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate.

Replace this and all the other components of the oil separator system to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable.

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E39 525i M54 2.5L
BMW E39 528i M52 2.8L
BMW E39 530i M54 3.0L
BMW E46 323Ci M52 2.5L
BMW E46 323i M52 2.5L
BMW E46 328Ci M52 2.8L
BMW E46 328i M52 2.8L
BMW E46 325Ci M54 2.5L
BMW E46 325i M54 2.5L
BMW E46 325xi M54 2.5L
BMW E46 330Ci M54 3.0L
BMW E46 330i M54 3.0L
BMW E46 330xi M54 3.0L
BMW E53 X5 M54 3.0L
BMW E60 525i M54 2.5L
BMW E60 530i M54 3.0L
BMW E83 X3 M54 2.5L
BMW E83 X3 M54 3.0L
BMW Z3 2.3 M52 2.5L
BMW Z3 2.5i M54 2.5L
BMW Z3 2.8 M52 2.8L
BMW Z3 3.0i M54 3.0L
BMW Z4 2.5i M54 2.5L
BMW Z4 3.0i M54 3.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

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