Originally Posted by andrew335i
I brought my 09 335i coupe to bmw because I was getting loud ticking in engine area. They said the ticking sounds like the fuel injectors and they RECOMMENDED I take my car to a place that cleans injectors. Wtf? I always hear about people getting them replaced! Does something more severe need to happen to them before they are replaced?
Probably valve train ticking. When injectors go the car runs on less than 6 cylinders and shakes like crazy. My first three went at about 40,000 miles. Next three went at about 45-50,000 miles. It's a known issue but they only fix them as they fail even though they know the balance will fail.