What are the most common engine problems in the BMW 3 Series?

I recently bought a used BMW 3 Series and I'm concerned about potential engine issues. What should I be on the lookout for and how can I prevent them?

Some common engine problems in the BMW 3 Series are oil leaks, faulty ignition coils, and engine misfires. To prevent these issues, make sure to get regular oil changes and tune-ups, and be sure to address any warning lights or unusual sounds immediately.

Another potential issue to watch out for is problems with the VANOS system, which controls the variable valve timing in the engine. It's important to get this system checked and serviced regularly to avoid any major malfunctions.

If you notice any hesitation or lack of power when accelerating, it could be a sign of a failing fuel pump. This is a critical component that should be replaced at the first sign of trouble to avoid being stranded on the side of the road.