Whilst I'm somewhat confused by James' anger at only a 2hr delay for an MOT
I can empathise with him totally with regards to the incompetence of Dealership feckwits - My company barge has a fbw throttle, and since day one it has a tendency to 'stick' on over-run, so that where a car would naturally decelerate when you lift off the gas, this POS instead holds throttle for a few seconds, then decelerates.
This can also be demonstrated as such by if you quickly dip the clutch at the same time, the revs/rpm needle 'hangs', then drops to idle.
Whether it's a sticking throttle pot', an issue with the over-run area of the map, or just a Merc' trait to reduce jerky throttle (say in traffic scenarios), I don't know, but it drives me fecking crazy, and if anything, it's a bit of hazard given it maintains speed when you come off the gas.
Twice it's been in to the local Dealership, and twice they've found no fault or issue. The first gem they came out with, is that it was probably the floor mat sticking. Must be some magical fecking floot mat then, to defy the law of physics, and lift itself to the underside of the pedal & remain there
2nd time, I road-tested the car with one of the senior (
) technicians sat in the passenger seat; his reply was "Don't know mate. That's a new one on me". And with a shrug of his shoulders, he pretty much left it at that
The diagnostic machine couldn't pick up any faults, so on asking if they could maybe contact Merc', Rastatt to see if this problem had been reported anywhere else, to which they declined to do so, I've pretty much given up hope of it ever being rectified.
I'd have a go at sorting it myself, but no doubt they'd throw the 'warranty invalid' BS at me, should something else fail in that area later down the line.
I'll mention it again come the next service, but I already know that'll be 10 seconds of wasting precious oxygen.
Problem is, I'm stuck with the POS car for the next 3 years
Still, at least one good thing has come from all this - I'll never, ever, buy anything to do with Mercedes in the future (even if I did ever have the money to do so), if this is what their after-sales service is like.