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Mercedes-Benz C-Class Most Common Problems (All Years)

21
thermostat
17
electronic steering lock ELV
16
blower motor / HVAC interior fan
16
idler pulley for accessory / serpentine / drive belt
16
transmission mount
15
camshaft position sensor
15
motor mount
14
alternator
13
A/C compressor
13
bulb: headlight
13
end link or bushing for stabilizer bar
13
strut (suspension)
13
tail light wiring
11
control arm / tension strut / thrust arm / lateral link
10
tie-rod / tie-rod end
10
transmission seal / gasket (fluid leak)
10
water pump
10
wheel bearing / hub
9
ABS wheel speed sensor
9
ignition switch / key cylinder
 
3   6   9   12   15   18   21   24   27   30  
Chart is based on 1037 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.