devilheart

Accessing the under-seat connectors involves kneeling beside your MGF, as if in prayer! Use a cushion or knee pads, as you'll be there for some time! A torch will help you see things. As built by the factory the connectors are attached to the frame of the seat by a black plastic clip, but this gets brittle with age and might not be there. The red block connector is in two halves—mine had a tiny amount of slack, so I replaced it with crimped on bullet connectors.

It's often stated on forums that the connector is the commonest cause of the warning light being illuminated, as it's shook about when the seat is adjusted backwards and forward. The previous owner of my 1998 MGF advised me that jiggling the connector would turn off the SRS warning light. It didn't. The wiring should be routed over the silver bar beneath the seat, to minimise disturbance, but it might well not be. Indeed, the wiring beneath the passenger seat of my car was crushed against the carpet beneath the lower frame rail; it looked like it had been that way for 33 years! As there's no airbag on the passenger side, I'm uncertain about whether faulty wiring could activate the light. I've received conflicting advice.

If you decide to remove the seats for easier access, you'll need a Torx socket bit size T50 + lots of patience, as the floor bolts are double the length they need to be. I've replaced both pre-tensioners for a cost of £10 apiece from eBay. Reconnecting the wiring beneath the seat is bothersome, as the wire insulation are different colours—you might think that like would connect to like, but on my car (from memory) Blue/Red connects to Blue/Brown. I read somewhere that making a wrong connection could set off the explosive charge in the pre-tensioner!

Good luck with your block connector(s)...you could be one of those owners for whom a quick jiggle does the job!