I've read a lot about 'rusty nuts' but my problem is that the heads of 2 of 4 MB locking wheel nuts will no longer turn with the MB key.
I've bought a new key which still skips out of the lug hole on both wheels when any turning force is applied.
I tried to attempt the common YouTube approach of putting a slightly oversized multipoint socket on top but they are too deeply recessed in the wheels for the socket to fit down.
Any ideas that have worked for you??? My winter tyres are still in the garage!
I had this happen to my Peugeot last year after some idiot at a nearby garage used a pneumatic tool to tighten and ruin the head of one of the locking wheel bolts. Only discovered this some months later, while trying to swap tires myself.
Asked them to unf*ck this situation, they tried for an hour (attempted to drill a hole into the bolt, so they could apply a left-turning screw to get the thing out) - which led to nothing as those nuts are meant to be burglar proof and made of hardened steel. In the end they gave me a provisional quote of 250 EUR to get the bolt they ruined out and I gave them the finger and swore never to use their services again. Which is a bummer, as they are locate some 300 meters away from our front door.
Next step was to try to weld something to this bolt, but that failed because it was too deeply recessed as well. I started to have visions of spending the winter with my summer tires on that car
Finally, the internet came up with an answer: I found a shop that was recommended for this operation, some 50 kms away. Gave them a call, and they said they could fix it for 5 euros. Sounded like a good deal, so drove up there, and they fixed it with a "spiral socket" (is that an English term?)
In any case, the sockets looked like these: Spiraaldoppen - Bob's Carparts - Bob Slager automotive
He put one of these onto the bolt, and then applied an impact driver to loosen the thing. Less than 2 minutes of work, job done.
Stupid idiots in the neighbourhood garage.