Not exactly a horror story, but had the Mondy back from Ford in Liverpool at the 50k service. Alarm bells started when I realised they'd left a screwdriver under the bonnet. Up till that point they'd fixed no faults under warranty either, but that's another story.
Anyway, clutch slip started. Really badly, about 200miles after the service. Wouldn't even hold cruise control without the thing slipping at about 2k RPM on boost.
Took it back. "TADTS". **** that, they don't. They had it in for a couple of days, said they couldn't duplicate the problem and invited me for a test drive to check. Strangely enough, the fault didn't happen again...
Lying sods. And you can never get through on the phone.
I go somewhere else now, and they've still not found me a pair of alloys after 3 weeks' wobbly motoring (pothole damage). Might just be Fraud dealers, but I don't trust any of them & when you have a detailed query you can never speak to the actual spanner monkey.