ifli2
08-03-2011, 11:17 AM
2005 A8L 30K miles. TPS on MMI became intermitant showing only spare but no raod wheels. Changed tires and reset MMI. Only road wheels now but no spare. Reset TPS in MMI again and lost the lot. Back to intermittant with Fault pop up every 10 to 15 minutes of driving. Never got the spare back. Audi Service Center diagnostic took a while but concluded all 5 TPS units had to be replaced at $189 a pop and problem caused by spare. Replaced and all appears well. Advised that if one unit goes bad it will drag the others down. Anybody seen this and how to stop it and find the bad one before you have to replace them all.