Have a 96 e36, it has about 80k on it and runs fantastic, pleasure to drive. However, when the vehicle is stationary and idling, there will be the normal hum of the motor then a "tock" sound. It is rather faint and can only be heard when sitting in the car with the doors closed, I cannot hear it when I lift the hood. I read in some places that it could be a sticking valve, or something similar and to remedy this add extra oil or synthetic. Well the problem is that I just bought it and the service information is unavailable. At this point I do not know whether its running on mineral or synthetic oil. I don't want to add one or the other and cause any damage, as the car does have 80k on it and may be a little more sensitive than a newer model. Any suggestions..
- posted
17 years ago