[duncanb]

Just to confirm the wing repeater is a fail, however a technical look at the regulation if a front indicator can be seen from side and flashes between 60 to 120 beeps per minute and is orange then that meets the requirement. All cars from mid 80s had a requirement for repeaters.
Alot of customizers fit aftermarket repeaters to pass mot then remove them a bit of faf if your not into cars probably a new bulb strip required.
15 to 50 quids depending on model and new or used.