This is actually with our car but I'm posting it here because the same issue could easily affect Motorhomes fitted with it.
So the car has been brilliant, love it, never let us down until last Thursday. Short version - There is apparently nothing mechanically wrong with it but it has locked itself in park because the electric gismo on the side of the gearbox that controls what gear its in has failed.
I got it taken to my preferred garage and its apparently an easy enough fix BUT Mercedes are being incredibly difficult about supplying the part. Apparently they consider it a security part so we are required to prove our identity and our ownership and have to give a letter permitting our garage owner to go to the Mercedes dealer and get the parts for our car and they will decide whether he is sufficiently vetted to fit the thing. Then and only then will they order the part which will be coded to our particular car.
Luckily it broke down within a couple of miles of home and close to the garage but how inconvenient this would be if it was a motorhome on holiday. There is no overide, it still is locked in park and had to be recovered with all 4 wheels off the ground. MH would need a rear end lift or propshaft removed, and you would need to have all your documentation with you even in the UK.
The most ridiculous thing is that if Mercedes would just supply the part it would have been back on the road on Friday whereas we currently have no idea how long it will be.
So the car has been brilliant, love it, never let us down until last Thursday. Short version - There is apparently nothing mechanically wrong with it but it has locked itself in park because the electric gismo on the side of the gearbox that controls what gear its in has failed.
I got it taken to my preferred garage and its apparently an easy enough fix BUT Mercedes are being incredibly difficult about supplying the part. Apparently they consider it a security part so we are required to prove our identity and our ownership and have to give a letter permitting our garage owner to go to the Mercedes dealer and get the parts for our car and they will decide whether he is sufficiently vetted to fit the thing. Then and only then will they order the part which will be coded to our particular car.
Luckily it broke down within a couple of miles of home and close to the garage but how inconvenient this would be if it was a motorhome on holiday. There is no overide, it still is locked in park and had to be recovered with all 4 wheels off the ground. MH would need a rear end lift or propshaft removed, and you would need to have all your documentation with you even in the UK.
The most ridiculous thing is that if Mercedes would just supply the part it would have been back on the road on Friday whereas we currently have no idea how long it will be.