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Volvo S40 Most Common Problems (All Years)

18
wheel bearing / hub
15
strut (suspension)
14
CV joint / axle / half shaft
9
motor mount
8
fuel pressure sensor
7
bulb: headlight
7
CV boot
7
sunroof drains, water leak from sunroof or from convertible top
6
A/C compressor
6
alternator
6
coil spring
6
control arm / tension strut / thrust arm / lateral link
5
PCV valve
5
strut bearing, mount, or brace
4
A/C condenser
4
PCV oil trap
4
PCV tube / line / hose / crankcase breather / intake breather
4
radiator hose / engine coolant pipe
3
A/C compressor clutch / compressor coil
3
brake caliper
 
2   4   6   8   10   12   14   16   18   20  
Chart is based on 220 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.