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BMW 4-Series Most Common Problems

3
door hinge
3
socket or electrical part for tail light / brake light / rear turn signal
1
12v power outlet
1
body control module (BCM) / central module (CEM) / power distribution module (IPDM)
1
catalytic converter
1
engine sensor, unspecified, unknown, or other
1
headlight condensation
1
intercooler hose / line (for turbocharger or supercharger)
1
muffler or resonator
1
oil filter housing gasket / oil filter stand gasket
 
1   2   3   4   5   6   7   8   9   10  
Chart is based on 78 vehicles in TrueDelta's reliability survey.
These are the problems owners most commonly reported on TrueDelta's Car Reliability Survey. Usually when people say "they all have this problem," the problem in question actually affects between 10 percent and 20 percent of all cars. We aren't counting wear items like brake pads and rotors that truly do require periodic replacement on all cars.

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