Have a 2003 Mk4 Golf auto which I bought over 2 years ago for a daughter.

It runs well but a while ago noticed that the reverse lights are not working. Did the usual checks (globes, fuse, etc) but no joy.

Have had it inspected twice but they cannot definitely narrow it down without spending more time to diagnose. During the last inspection, they also found that it can be started in reverse. They are suggesting a possible faulty transmission control unit and/or multi function switch, but these are just educated guesses.

I also get my 2014 Mk7 GTI serviced at the same place and they are usually very good, but I'm reticent to fund them for more hours to diagnose (they want at least another 2-3 hours) the Mk4 issues when I suspect they have had enough time to find the cause.

Can anyone recommend somewhere in Adelaide who specialises in this type of issue?