2014 BMW 428i
Mileage
109,388
Service Date
8/1/2025
Services Performed
- TRANSMISSION OIL PAN GASKET &/OR FILTER – Remove & Replace
- Confirmed the cold-start stall comes from a torn PCV diaphragm in the valve cover, which is also leaking oil, letting un-metered air into cylinders 1-2. Crankcase vacuum read 0 in-Hg (spec –11) and fuel trims spiked +19 % when the breather was blocked, proving the leak. Valve-cover/PCV assembly is faulty and must be replaced to stop the oil leak, restore proper mixture, and eliminate the stall.
- VALVE COVER GASKET – Remove & Replace – Coupe
Nathan L. gave our service a 5 star review on 8/1/2025
