Table 1 shows six common engine and engine cooling related problems of the 2006 BMW 3 Series. The number one most common problem is related to the engine and engine cooling (four problems). The second most common problem is related to the engine oil leaking (four problems).
Engine bolts - aluminum bolt heads were found by mechanic in engine compartment. Although mechanic has stated this does not pose safety risk, seems numerous customers with a BMW 3 Series 2006 have experienced the aluminum bolt sheering off issue. Read details...
Oil keep leaking out of training. It was fixed twice so far. Back brake line keeps breaking when you drive in snow. Read details...
Independent repair shop noted aluminum head bolts broken which could cause extensive damage to engine. Broken bolts caused oil leak and heads of bolts could have gone into the timing belt destroying the engine. Read details...