Hi all, I've done a search and have found similar problems but no real resolution. On the drivers side rear driveshaft the haldex side of the driveshaft is moist, no drips of oil, just moist. If this is a driveshaft seal, how much are they to fit? It's actually in at Audi on Tuesday for a haldex service but if the problem is a leaking seal, wouldn't the service be a little pointless? Thanks.