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The odometer and tach sound like it could be a bad connection or bad ground. I am not sure about the codes. I will look them up in the Bentley manual this afternoon once I am home and post what I find.
When did the transmission problem start? I believe EGS has to do with the Steptronic shifter signal. This may be a problem with the wiring in the steering column area. I just say that because you are having a problem with the interments also. I would check all the plugs to make sure there is no corrosion and they are plugged in tight.
As I said this afternoon I will see what I can find in the manual.
This absolutely could be the problem. The mini has several boxes that talk to each other. As @00Mini said are picky about wiring. I would look at all the wiring around that alarm and any other addition that was put on the car. If the BCM and ECU get out of sync it will be a trip to the dealer to unbrick your car. I would be very careful and ditch the alarm.
If it abs you usually get the triangle, low tire light and the traction control light. I am sorry I did not get back to you Once I was back in town I got very busy now I am on the road agin.
The mini has an Avitar remote start system that my husband thinks is causing all sort of electrical issues. The doors will re-lock when driving, speedometer and gas gauge not working sometimes, and not low oil pressure light when coming to a stop. Could this be possible?
First generation MINI’s are sensitive to to voltage changes so bad grounds, batteries, alternators and any non oem additions would be points of interest.
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