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Transmission Cog Light - Air Box Removal

3K views 3 replies 3 participants last post by  fdriller9 
#1 ·
Okay So I have a minor coolant leak, and whilst diagnosing the leak I removed the Air filter Box, and started the car to check for the leak. The transmission Cog light appeared, have never seen this light before and have never appeared before. I contacted the BMW dealer and he said it is a warning light that appears whenever the car is started without the airbox connected. However I reconnected the air box and the light is still there? Was what he said true? Or do I have other problems?

Thanks... (316ti 2004)
 
#4 ·
You probably disconnected the MAF.

The car will run on rough and will throw lights.

The lights won't go out until the car sees the MAF and proper readings. This could take a couple ignition cycles.
 
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