C class 220 58reg ... How do you replace indicator bulbi in wing mirror?

[JohnnyLou]

Any advice would be appreciated

 

[DSM10000]

Unsure if it is the same as on my W203 but the process for that version is as follows:

Fold the mirror in toward the door, look inside the cover (a torch may help) and you will see a sprung metal catch, depress this with a long flat bladed screwdriver and the cover should slide off.