Engine Exhaust System Problems of Audi S4

I got in my car this past Friday to leave for work and then my car starts rumbling and sounds like what can best be described as a muscle car. I only live a mile from my office so I drive my car in. While driving it seems like the car has lost low end power and is still idling with a rumble. When I get to work I pop the hood and notice the entire motor shifting back and forth and my buddy sees my exhaust is moving up and down. So I decide to get it to the local garage that has worked on my car before. He is only about 2 blocks down from my office. When I pull out from my parking lot the car throws a cel and about 500 ft from the garage it starts flashing. So I coast the car into the garage and get the codes read. They're coming up as cyl. 4, 5, 6, and 7 misfires and p0021 cam timing adjust bank 2 not reached. So the mechanic clears the codes and takes the car around the block and once again the cel comes on and this time it says cyl. 1,3,7, and 8 misfiring and the p0021 code for the cam timing and also a new code p1317 bank 2 cam/crank angle sensor wrong combo of ecu's. . . . To make a long story short the car was towed over 100 miles away to the nearest Audi dealer and was diagnosed as having a faulty cam tensioner. The whole motor needs to be removed and tore apart and the tensioner replaced. The bill is $6286. 18. My car is a 2004 Audi S4 with only 67,000 miles on it and I just purchased it about 5 months ago. It is not under warranty.

See all problems of the 2004 Audi S4 🔎.

There was a cam adjuster from where the oil leak was coming from. Noticed this on August 8, 2003. Then, on July 24, 2004 took the vehicle for an oil change a nd they confirmed there was another oil leak. The warranty expired in November 2005, and the consumer made arrangements for the gaskets to be replaced a month before the warranty ran out. In order to get to the gaskets the cam shafts had to be removed. The gaskets were replaced,, and cam shaft reinstalled, then gave it a tune up. Also, put in two different types of spark plugs; one set was platinum and conventional. A week later, it was ready for pick up. The exhaust sounded different when vehicle picked up. On January 31, 2005 took vehicle to another mechanic because the check engine was on. At that point mechanic determined O2 sensors caused the light to come on, and the exhaust sounded differently. Then, three months later, the exhaust cam shaft that broke it bent valves in cylinder head and caused it to crack.

See all problems of the 2001 Audi S4 🔎.