I have a 622 and they’re brilliant. Had a weird thing happen Friday, got a puncture so off I go to STS to get it fixed, of course it couldn’t be fixed so new tyre. 90 minutes of waiting in a cold waiting room for one tyre. Get in the car and dashboard lights up like Christmas tree. Errors in drive train, no acc, no travel assist. Trued driving and car drove OK so decided I’d drive the 4 miles home and call RAC if necessary. Tried everything off then on, lock and unlock the car, pulled the on board charger fuse etc nothing worked. I was just filling in the RAC call out paperwork when I though I have a posh obd dongle obd link lx so plugged that in and read the codes. I had motor has lost connection to ecu or some such. So I thought I’ll clear the codes and see what happens, codes cleared and everything now working. So tyre change and the car spat the dummy over nothing, really weird. Wonder what set that off? Glad I had a decent dongle to solve it myself, obviously if it had come back I’d have called it in immediately but as I was hoping it was a glitch and seems I was right. What a farce.
When i went to the dealership recenty to have them look at the front disc’s,i was talking to the tech (and he is actually running a Enyak) i asked about being able to see tyre pressures on the info screen he said the car does not have tpms sensors (so no display) but the tyres are monitored by the ecu for pressure.It does this by continually checking the rolling diameter of the tyre,deflation causes the rolling diameter to get smaller so will trigger the tyre pressure deflation alert warning.
You know the old tyre on your car that is now paired up to a brand new one the same axle how many miles has it done ? did the kwik fit fitter check the tread depth on the remaining old tyre ?