Close

2004 Audi S4 Problems

Find the most common issues based on 2004 Audi S4 owner complaints.
Tap theto learn more about the most common 2004 Audi S4 problems.

Most Common 2004 Audi S4 Problems

The thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.
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.
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Looking for a particular 2004 Audi S4 problem?

0 Known 2004 Audi S4 Brakes Problems

3 Known 2004 Audi S4 Drive Train 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.
A fluid leak may develop from the propeller shaft seal on the rear of the transmission. Our technicians tell us that replacing the seal will commonly correct this concern.

0 Known 2004 Audi S4 Electrical & Lights Problems

2 Known 2004 Audi S4 Engine Problems

The thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.
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 ...

1 Known 2004 Audi S4 Exhaust & Emissions Problem

Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and...

0 Known 2004 Audi S4 Heating & Air Conditioning Problems

0 Known 2004 Audi S4 Maintenance Problems

1 Known 2004 Audi S4 Miscellaneous Problem

Clogged drains can allow rainwater to accumulate in the plenum tray (at the base of the windshield). The water may leak into the vehicle's interior, brake booster, or electrical components, which c...

2 Known 2004 Audi S4 Suspension & Steering Problems

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 bu...
Premature wear in various multi-link suspension components can cause noises that are difficult to diagnose. Worn suspension parts can also cause uneven tire wear and create steering alignment probl...

9
Known 2004 Audi S4 Problems & Complaints

The thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.
Clogged drains can allow rainwater to accumulate in the plenum tray (at the base of the windshield). The water may leak into the vehicle's interior, brake booster, or electrical components, which c...
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 bu...
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 ...
Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and...
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.
Premature wear in various multi-link suspension components can cause noises that are difficult to diagnose. Worn suspension parts can also cause uneven tire wear and create steering alignment probl...
A fluid leak may develop from the propeller shaft seal on the rear of the transmission. Our technicians tell us that replacing the seal will commonly correct this concern.
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Researching a 2004 Audi S4?
Get maintenance costs, reviews, recalls and more.