I recently purchased a used BMW 2 Series and I've noticed that the engine makes a loud knocking noise when I start it. It goes away after a few minutes of driving, but it's still concerning. What could be causing this and should I be worried?
ReplyThere are several possible causes for a loud knocking noise in your BMW 2 Series engine. It could be due to low oil levels, worn out engine bearings, or even a problem with the fuel injectors. It's important to have this issue addressed by a mechanic as soon as possible to prevent further damage to your engine.
If your BMW 2 Series has a direct injection engine, then the knocking noise could be due to carbon build up on the intake valves. It's a common issue with these types of engines and can be easily fixed by having them cleaned. I recommend taking your car to a reputable mechanic to get this done.
One possible cause for the knocking noise in your BMW 2 Series engine could be a faulty water pump. If the pump is failing, it can cause the engine to overheat and make a knocking noise. This is a serious issue and should be addressed immediately to prevent any damage to your engine.
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