Signs of a Bent Inlet Valve
A common problem found with BMW n47 diesel motor is a bent inlet valve which can occur due to high mileage or major components breaking.
The bent inlet valve on this BMW, seen in the top left corner
Common Signs
In the case of this BMW 520d, the owner was experiencing some lack of power and excessive fuel usage. Having brought it into Auto Studio, our technicians went through and found the inlet manifold had failed, resulting in one cylinder having no compression.
The Fix
Auto Studio corrected the problem by modifying the inlet manifold, meaning this problem will never occur again.
Bent inlet valve in cylinder one
Modified Inlet Manifold
If you’re experiencing this problem or looking to prevent this from happening to your car, talk to Auto Studio today.
