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Hello, I am Jose Sebastian. Your mechanic automotive expert, It's a pleasure to me to attend your question. Thank you very much for trust in just answer.
Dear customer, I would like to know, what mileage does your car have? And did the garage scan your car with an BMW diagnostic scanner?
Yes dear customer, sorry for my delay, what kind of fuel does your car use? Thanks
Thanks dear customer, i will be back in a moment. i am finishing with the query of another clustomer and then i will be back to you.
Dear customer, these problems are related to the minimum or the idle speed which comes or is regulated by the throttle body system. So, this is the aspect that we must first look at
I recommend you to first go to a BMW garage with a BMW automotive scanner (others scanner sometimes does not show the error codes) with which you can watch the error codes and check the car operation in search of a part that is not working in a proper way. It usually is easily solved by performing a maintenance. because it accumulates a lot of dirt and the throttle body (butterfly) starts to stick with its components
If you observe that everything is correct in the Throttle body we proceed to check the injection system, checking the fuel pressure which is also observable through the scanner or with a gas pressure gauge.
If you have a lot of time without giving maintenenance to the injectors and you recently replaced the spark plugs, I recommend you do this soon.
The aspects mentioned above are the main causes of this kind of problems. another aspect is a major fault that could come from the engine which you can rule out by corroborating that the engine does not have strange noises and that the compression in the cylinders are equal for all.
Finally, if you do not have problems starting the car but only when it is idling, in my opinion we can rule out the torque converter. Anyway, with the scanner, we can observe If there are error codes referent to it.
Dear Customer, Is your inquire clear or is there anything else i could help you?My goal is to give you the best advice I can and I hope that I've helped today. Please remember to rate my service by selecting from the 5 stars at the top of the screen before you leave. because in that way you help me grow in the platform and if you wish you can let a comment for the service and a tip.Regards.
Great dear custome, I am glad it is sorted out. Please remember to rate my service by selecting from the 5 stars at the top of the screen before you leave. because in that way you help me grow in the platform and if you wish you can let a comment. Thank you very much