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BMW X3 Most Common Problems

22
thermostat
21
ignition coil pack
19
oil filter housing gasket / oil filter stand gasket
19
valve cover gasket
17
coolant reservoir / expansion tank
13
starter
10
coil spring
10
radiator hose / engine coolant pipe
10
strut (suspension)
10
water pump
9
rattle or squeak, sunroof or convertible top
9
transfer case (PTU, PTO) / center differential / angle gear
9
transfer case (PTU, PTO) servo motor
9
VVT (variable valve timing) solenoid / actuator / motor / servo / cam phaser
8
hinge or lid for glove box or storage compartment
8
windshield washer pump / motor
7
entire turbocharger
7
tail light housing / assembly
7
valve cover
6
door seal / weather strip
 
3   6   9   12   15   18   21   24   27   30  
Chart is based on 557 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.

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