I’m not technically minded, so bear with me on this description.
I’ve had from new, what is now a 2-year-old Leon FR 2 litre diesel 150 with the twin clutch automatic gearbox.
It recently had its 20,000 mile service. Since then, the gear changes are no longer smooth, it noticeably drops down through the gears when slowing down and cuts out before the car stops. On acceleration, a lower gear kicks in with a lump and quite often, when stationary, it ticks over at 1000rpm. It’s been back to the dealer who said they can find nothing wrong. Any ideas please?