Transit turn signal fault

A turn signal issue? Interesting. Had a similar problem crop up on my old BMW a while back. Error lights flashing all over the place due to a seemingly innocuous indicator bulb. Could it be something as simple as that?

Indicator bulb, you think? I did check the bulb itself, and it appears functional. Did your BMW throw similar error codes and messages? And what was the eventual fix?

Error codes galore, yes! Nightmare fuel. Turned out to be a slightly corroded connection at the bulb socket. Symptoms sound awfully similar. Unless you're particularly adept at electrical troubleshooting, I'd recommend a workshop visit at this point.

Appreciate the insight! Took it to the workshop as suggested; turns out it was indeed a corroded connector, as you suspected. New connector fitted, error codes cleared. Total cost was 95€.