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BMW 7-Series Most Common Problems (All Years)

4
engine seal / gasket, other or unspecified or unknown (oil leak)
3
alternator
3
control arm / tension strut / thrust arm / lateral link
3
engine cooling fan
3
engine valve seals / valve job
3
entire transmission
3
thermostat
2
coolant reservoir / expansion tank
2
end link or bushing for stabilizer bar
2
idler pulley for accessory / serpentine / drive belt
2
power steering hose / line / o-ring
2
power steering pump
2
rear window shade
2
suspension, unspecified or unknown
2
tie-rod / tie-rod end
2
transmission rebuilt
2
valve cover gasket
 
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Chart is based on 97 vehicles in TrueDelta's reliability survey.
These are the problems owners most commonly reported on TrueDelta's Car Reliability Survey. For many models not all entries have been coded yet, so focus on the relative numbers rather than the absolute numbers. 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.