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BMW X3 Most Common Problems (All Years)

30
thermostat
29
valve cover gasket
24
ignition coil pack
23
coolant reservoir / expansion tank
22
oil filter housing gasket / oil filter stand gasket
20
coil spring
17
starter
15
water pump
14
radiator hose / engine coolant pipe
13
strut (suspension)
13
transfer case (PTU, PTO) / center differential / angle gear
12
transfer case (PTU, PTO) servo motor
11
damper / shock absorber
10
driveshaft (longitudinal)
10
VVT (variable valve timing) solenoid / actuator / motor / servo / cam phaser
10
windshield washer pump / motor
9
entire turbocharger
9
rattle or squeak, sunroof or convertible top
8
hinge or lid for glove box or storage compartment
8
valve cover
 
3   6   9   12   15   18   21   24   27   30  
Chart is based on 609 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.