A test drive should have spotted the wheel issue, a test drive may have even caused the other fault to show . Unfamiliar roads and a sales person wouldn't detract from noticing the wheel issue as described by the OP.
Either one would have been cause for refusing the car and not handing over £40k and the subsequent angst.
Are you seriously suggesting that you would spend that amount on a car and not ensure you were happy with it before driving 200 miles home?
A test drive would likely not have revealed the wheel(s) issues. The car drove nicely around the local town; it was only at motorway speeds that the vibrations were apparent.
On most test drives, you’re instructed which route to take (in my experience and I’ve done test drives since this incident, prior to and including buying the BMW). You also have a stranger sat in the passenger seat, often talking, and you’re often in an unfamiliar vehicle.
I have several friends who would not have picked up on the vibration and if I had not been coming from a W213 to another 213 and knowing how it should feel, I may not have noticed either.
So would that have been ok? We’re talking about vibrations that were noticeable to me as I’m very much in tune with the E Class, yet even I didn’t notice immediately. I would hazard that most people would have accepted it as a characteristic of the car. I didn’t, and got it checked, which revealed two buckled wheels.
I can assure you that the gearbox fault would not have been evident on a test drive, even as 200 mile test drive and nor would the EML.
Neither would the intermittent knocking noise.
Are you saying that it is acceptable for Mercedes dealers to sell 40k+ cars without plugging them into Star, checking for faults and thoroughly inspecting the vehicle?
It comes across (not just by yourself, but one other poster also) that this was all my fault, in your opinion?
I, like many enthusiasts, look for a very specific spec car when I’m buying. I don’t just drive to the local dealership and take what they’ve got on offer; I search nationwide, particularly as well specced IC cars are seemingly outnumbered by EVs.
I’m not going to drive 200 miles to test drive a car, then drive back home after giving the go ahead, to then wait while they ‘prep’ the car and drive back to collect.
This is why I only buy new or approved used, as AU previously has provided a level of comfort and an assurance that the vehicle is in good health. This car had not just one fault, but several, culminating in it grinding to a halt 220 miles later.
The point is, the car should have been checked, fixed and roadworthy at point of sale, regardless of test drives. The law confirms this.
In my case, it was not. If it was my fault the car was sold in a ‘state’, then I apologise.