someone I know in the USA who owns an E34 M5 had a problem, his coding plug got corrupted. I have now read that this sometimes happens. He ordered a new coding plug from the dealer, but the dealer left the odometer at "0000".

He asked me to try to fix it for him, and I can now report that I was able to do that. I can also change almost any other parameter in the plug, such as shorten the service interval, change clock from 12 to 24 hr etc.

This service will be offered with repair in both Columbus Ohio and Toronto, Canada so if you need this sort of repair on blue or brown coding plugs, just let me know. I should be able to restore your damaged plug, or install a new memory chip in yours.