hirsutebodkin

So for anyone who's interested the relay I fitted for the lights is a Tyco Electronics (TE Connectivity I think they're now called) 0-1432785-1 and it seems to be working fine

I'll do that as soon as it arrives and I've had a chance to check it's actually the right one. It looks to be a fairly standard mini changeover relay 12V, 30amp but I should be able to confirm tomorrow

So for anyone with a similar car to mine, a 2016 270s, when the lighting relay fails, which is a standalone dangling relay up behind the dash near the steering column, the fog lights stop working, the dipped lights don't work and the main beam switch stops working, all fixed by replacing the relay.

Did you ever get to the bottom of the problem? I have developed a very similar one in my 270. Light switch works to switch on the sidelights but the dipped lights don't. Also the main beam switch doesn't put the main beam on (presumably because the dipped needs to be on first) but the switch to flash the main beam does work. Fog light also not working but the switch is getting power. All the fuses are ok so I emailed Caterham and Lee Bristow has advised that I check the headlight relay. My only problem now is that I can't find it. He said it should be somewhere behind the headlight switch as opposed to being with the fuses but I'm struggling to find it. Can anyone send me a photo showing where it should be?