Quote:
Originally Posted by 740I_yeye
Quote:
Originally Posted by 13M5F10
I'd take it to service and have them read the fault codes and see what happened. Easiest way to figure out the issue unless you have an OBD reader, could download the fault codes using BimmerLink.
Too many variables and we could be guessing what the issue is.
Could easily be a misfire, bad gas, bad spark plugs especially if you're feeling some hesitation.
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the only thing is that the warning comes and goes. Would bmw still be able to identify the problem without the warning? Or would they push the car and try to get the warning back? Its really weird because the car is almost normal when the warning isnt on and there are no notifications or anything to suggest anything wrong with the car
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Anytime there is a drive train malfunction or issue the car will log the codes in the system. Should be able to pull them even if not showing any longer.
From google, best way to explain the diff DTC codes.
Pending Codes
A pending code will not turn on your check engine light and indicates that a system on your vehicle is behaving abnormally, but not so much as to mean there is an actual problem.
For example a temperature sensor might have a normal operating range of 90-110 degrees, but 80-120 degrees is considered acceptable. Once the sensor starts to read 85 degrees it is outside of the "normal" range but isn't a problem yet, so a pending code will appear.
Confirmed Codes
A confirmed code indicates that a vehicle system is experiencing an issue requiring your attention. In the temperature sensor example above, once the reading drops below 80 or above 120 degrees the vehicle would then throw a confirmed code as well.
Permanent Codes
Permanent codes are a special type introduced more recently which can not be cleared using a scan tool. If you have a permanent code the vehicle will clear it itself once the cause has been addressed and sufficient data has been gathered by driving under different conditions (idling, stop and go, highway)
Generally permanent codes cover emissions related equipment.