Audi S4 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Audi S4

Our technicians recommend having the constant velocity (CV) boots and CV joints inspected at each service. Servicing torn CV boots early can prevent the need to replace the CV half shaft or CV joint.

A problem with the torque converter can cause the Check Engine Light to illuminate.

Various bushings—located around the subframe, suspension, and steering—deteriorate with age. A clunking noise when driving over bumps, accelerating, or stopping may be a sign of worn bushings.

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IS THERE A COMMON RELAY CONNECTING THE SENSORS RE: COOLANT SENSOR FAN SENSOR ECT? i HAVE 5 VOLTS TO THE SENSOR IT DOESN'T WORK `NO BLOWN FUSES GETTING MISOUL. CODES FOR BANK 1 O/2 THEN BANK 2 i HAVE RERWIRED ALL? THE TEMP GAUGE JUST WONT RESPOND

Rear diff gearings are going. I would rather rebuild it, but my mechanic wants to swap it out with a used one. Anybody have a source for rebuild kits or know of a shop in NorCal to do the work?

Thanks

The light remained on after starting the car. Nothing is obviously wrong that I can hear or feel. Is ok to drive locally until I can get it looked at after the holiday weekend or do I need to keep it parked?

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The fuel rail is a tube that carries fuel to the fuel injectors. The fuel rail may leak, increasing the risk of a fire. Dealers will replace the affected fuel rail and corresponding seals to correct this concern.

ON CERTAIN PASSENGER VEHICLES, THERE IS A POSSIBILITY OF XENON HEADLAMP COATING DEGRADATION OVER TIME. THE LUMINOUS TRANSMITTANCE OF THE HEADLAMP MAY DECREASE OVER A PERIOD OF TIME.VEHICLE DESCRIPTION: PASSENGER VEHICLES. A FUEL FEED LINE CONNECTING THE FUEL FILTER TO THE ENGINE CAN PREMATURELY AGE AND SHRINK THROUGH EXPOSURE TO HIGH UNDER HOOD TEMPERATURE CAUSED BY THE TURBOCHARGER.

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I have owned my 01 S4 Avant 6 speed for 5 years now. I bought it form the original owner with 120K miles on it with service records. My wife drives it daily and has 205K on it. The car still has original clutch, head gaskets, and turbos. Most repairs have been general maintance, but some repairs are costly. Some parts such as EGT sensors, O2 sensors and center driveshaft carrier bearing failure...

Bought my 2001 S4 new in March 2002. It has 149,000 miles now. It has been an excellent car. It is a 6 speed manual with the original clutch. Wondering how much longer the clutch will last. It does not slip but am thinking it must be getting close to the end of its useful life. Am wondering if I should sell it while it runs well or keep it and eventually replace the clutch. Any advice o...

I purchased my first amazing Audi S4 new in July of 2006. My S4 came with the tiptronic automatic transmission. I drove this excellent car for 148,844 miles. Other than normal maintenance, I had to replace the headlights because of flickering problems at about 100,000 miles, and had to replace all coils at about 95,000 miles. These were the only two major repairs the car sustained. Today,...

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