Hi all Recently bought a 2001 a3 1.8t (104000) and am thinking of doing an oil change only on it, as the colour seems to be a bit dark. Whats the recommended oil for these cars? The other two things are the rear windscreen wiper has stopped working just recently, would this be the motor, or a loose connection? (the fuse is fine), and the subwoofer in the boot compartment is not working. Is this connected to the head unit? The guy I had it off needed to get the serial code off the unit and I was thinking he may have knocked the connection out? Any advice would be greatly appreciated and I think they have the smoothest engines ever! Thanks, mark.