The water pump may fail resulting in engine overheating and possible timing belt damage. Overheating and/or timing belt failure can result in very expensive engine repairs. As a precaution, it is recommended to inspect the timing belt and water pump at regular intervals.Google+
Car Problem Reports
Audi A6 Quattro Inspection of Water Pump and Timing Belt
Audi A6 Quattro Problem
Engines Affected: 2.7L V6 Turbo, 2.8L V6, 3.0L V6
Average Mileage: 100,044 mi (60,000 mi - 139,810 mi)
Visitor, 2000 Audi A6 Quattro, 2.8L V6, 134,000 mi
car over heats and makes a loud noise and the right side exhaust pipes shakes and stalls the car at lights. I loved my car but after only 1 year its a lemon.
Visitor, 2000 Audi A6 Quattro, 2.8L V6, 139,810 mi
it looks like the water pump pully is no good its making a loud knocking nose and spinning weird
replaced timing belt without replacing water pump.. big no no do both at the same time, it's only a matter of time before the water pump fails
Replaced Timing Belt and all other accessible items at 63K. Now at 128K there's a loud clatter from the front of the engine. Time for another Timing Belt job.
Visitor, 2000 Audi A6 Quattro, 2.7L V6 Turbo, 63,500 mi
Momemntum Audi Houston. Took the car in for the reason it didnt start one fine evening and there seems to be a leakage in Coolant line. Following items replaced
Ignition sensor, both fuel pumps, Both water pumps, some more sensors total repair cost 5000$ 2 months after buying the car from Momentum Audi. Took 45 days to repair.