OK, so I'm trying to do the brakes on my wife's Mercedes ML320. It's a pretty simple job, almost exactly like a Disco II, but no rust! Technically, this should take me about 20 minutes per wheel. But I've gotten stuck on trying to remove the caliper bolts. Not the guide pins, the bolts that hold the caliper frame to the wheel hub. These are 21mm standard bolts.
I broke my first socket. Then tried heat. Then heat and Liquid Wrench. Then WD40. Then a 6-sided impact socket on a 21" breaker bar. Then an impact wrench. Then I got insane and I actually lowered the car down onto the breaker bar to try to use it's own weight to loosen the bolt. Now I have a new, newly bent breaker bar, but the bolts still won't budge. I've been at this for 3.5 hours now.
So the only thing I think I can do is to clean it up real well, put it back together with the old pads, then get it towed if there are any faults, or if the braking seems off in some way. I'm at a loss.
Any ideas?
I broke my first socket. Then tried heat. Then heat and Liquid Wrench. Then WD40. Then a 6-sided impact socket on a 21" breaker bar. Then an impact wrench. Then I got insane and I actually lowered the car down onto the breaker bar to try to use it's own weight to loosen the bolt. Now I have a new, newly bent breaker bar, but the bolts still won't budge. I've been at this for 3.5 hours now.
So the only thing I think I can do is to clean it up real well, put it back together with the old pads, then get it towed if there are any faults, or if the braking seems off in some way. I'm at a loss.
Any ideas?