Three problems related to power train have been reported for the 2007 BMW 335. The most recently reported issues are listed below.
The transmission malfunctioned while attempting to park. Car won't go in reverse, also car had no power to accelerate in drive mode. This was caused because the valve body sealing sleeve that is made of plastic broke.
The car has had numerous issues since purchased. This all came to a head when driving home, under normal conditions, it suddenly would not shift past 1st gear. I proceeded to pull off to a side street and attempt to idle home, as I was about 1 mile from home. After approximately . 5 mile, the transmission suddenly lost first gear, there was an audible bang under the hood, and the car completely lost power. After being in a service center for a couple weeks, I am now informed that the engine is locked down and that the car will require a new engine to be working again. This car had been an absolute nightmare and has turned me quite calloused towards Bmws quality standards.
Valve cover oil leaking onto exhaust manifold that causes fire. It was turned off and stationary. Asked BMW to change in 80k but they said just sweating oil. Safety hazard ignored. Common amoung BMW 3 series engine.