S3 Rear Wheel FAILED - HELP PLZ
right so my mates just called me and said he was driving home from work and he could feel the back end dragging - he then sent me these pics
now some history - back in nov 12 we took his car to the dyno for a power run to see what it was putting out and the car was fine no issues atall...
when they went to dyno it they went to remove the haldex (4wd system) fuse as these need to be dynod in fwd however the fuse could not be locted as the panel was slightly different. the dyno guy removed a fuse which we beleived was the right one but it wasnt and instead caused a nasty clutch burning smell.. the car was strapped down while being driven and the back wheels were unable to turn even though they were trying to when accelerating..
now we then soon realised that the car was stuck in permamnent 4wd, so they backed the rear wheels onto the rollers to dyno it using all 4 wheels..
when we left the location his back wheels would lock up on tight turns, much like driving with a welded diff - now he got used to this and has been driving ike it daily until tonight he explaned what ive put above...
saying the back wheels are like there dragging so i presumed the haldex system has failed and locked up completely but then when he sent me these images it looks like an arm could have snapped or something....
any audi experts know of a haldex to cause this or are we looking at another issue here unrelated??
my mate is not mechanicly minded in the slightest and im stuck at work until 7am so looking for someone in the know plz