Seat Bolster Servo Gear – BMW | OEM 52107068045Seat Bolster Servo Gear BMW Fix Your BMW Seat Bolster Adjustment Replace the Broken Servo Gear, Not the Whole Motor. The plastic drive gear inside the BMW seat bolster (popliteal support) servo motor is the most common failure point. When it strips, the seat bolster stops adjusting and the motor runs but moves nothing. This replacement gear restores full seat bolster function at a fraction of motor replacement cost. Why Replace Just the Gear Targeted

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Confirm OEM number 11127552281

11617501563 PCV Membrane for BMW M60

4i — 1999 to 2006

Recirculated exhaust gases coat the intake manifold and intercooler — reducing airflow

When the diaphragm hardens

The EGR system on these BMW diesels recirculates exhaust gases into the intake — causing progressive carbon buildup on the intake manifold

whistling or squealing noise at idle

Unstable engine operation caused by intake manifold wear

Volkswagen Touareg 2008–2013

and Skoda models with 2

2TD engine causes oil leaks