Audi S4 Repair and Maintenance

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

Audi S4 Problems

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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Audi S4 Questions

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?

The issues with the car are 1)The car has an overheating problem that could either be the thermostat or the headgasket(if it's the thermostat I believe I can fix the problem myself)if it's the headgasket would an engine additive fix the problem instead of me paying big$$ for a headgasket ...

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Audi S4 Recalls

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.VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME AIR BAG SENSORS DO NOT COMPLY WITH AUDI'S DURABILITY STANDARDS OVER THE LIFETIME OF THE VEHICLE.

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Audi S4 Reviews

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...

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,...

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...

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