What are the common engine issues in the BMW 4 Series?

I have been experiencing some engine problems with my BMW 4 Series and I am unsure about what could be causing them. Can someone provide some insights on the common engine issues in this vehicle?

The BMW 4 Series is known for having water pump failures, which can lead to engine overheating and damage. I suggest getting your water pump checked and replaced if necessary.

Another common issue is failure of the VANOS system, which is responsible for controlling the variable valve timing of the engine. It is important to have this system inspected and repaired by a certified mechanic to prevent any further damage.

Carbon buildup in the intake valves is also a common problem in BMW 4 Series models. I recommend getting a carbon cleaning service done every 40,000 miles to avoid any potential issues.