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Audi S3 Common Problems and Solutions

High Revs Cause Engine Hesitation

Problem:

The engine becomes hesitant at high revs.

Models affected:

Solution:

There are three possible problems here. First, check your coil packs and order replacements from us if they are shot. If they are fine, then look at the spark plugs and replace them as necessary. If neither of those seems to be a problem, then you have faulty injectors, which you can also order from our store.

Difficulty level

2

Part you need

Coil Pack

Part required

Coil Pack

Get a quote for Coil Pack

The Car Doesn't Start In Wet Weather

Problem:

When it rains, the engine won't turn over. This will be accompanied by the ABS light coming on and the ESP and ABS becoming disabled.

Models affected:

Solution:

The yaw sensor has broken and will need to be replaced. In most models of the S3, you'll find the yaw sensor in the centre console, just beneath the radio. Some models have it located beneath the steering wheel, while others may have it under the front passenger seat. We always have S3 yaw sensors in stock so that you can order yours and replace them easily.

Difficulty level

1

Poor Running

Problem:

The car lacks power, and the engine performance has dropped dramatically.

Models affected:

Solution:

Older models of the S3 have a black coolant temperature sensor, which very easily breaks down. You'll find the upgraded green version of the sensor on our drop-down menu. Before you replace the part, don't forget to open and then close the header tank to release pressure.

Difficulty level

1

Part you need

Coolant Temperature Sensor

Part required

Coolant Temperature Sensor

Get a quote for Coolant Temperature Sensor

Overheating Thermostats

Problem:

The temperature gauge is much higher than the actual temperature.

Models affected:

Solution:

The plastic impeller on the S3 is very prone to failure, and that will end up causing both overheating and damage to your thermostat. Replace the plastic impeller with a metal pump and order a replacement thermostat that we can deliver to you.

Difficulty level

2

Part you need

Thermostat

Part required

Thermostat

Get a quote for Thermostat

Window Malfunction

Problem:

The windows won't close.

Models affected:

Solution:

There are plastic clips that run up and down on the window regulator of the S3, and they can break all too easily. You can find replacement A6 metal clips on our parts list and replace them, and that will solve the window problem.

Difficulty level

1

Misfiring Engine

Problem:

The engine is misfiring regularly, and the boost may be affected as well.

Models affected:

Solution:

The oil breather valve that's on the front of the cam cover is prone to sticking with the Audi S3. It's worth changing the cover for a new one every 10,000 miles, but if you're being affected by misfires, then you can order a new one from us and easily install it yourself.

Difficulty level

1

Fuel Cuts and Power Loss

Problem:

The fuel keeps cutting out, and the car experiences a sudden loss of power.

Models affected:

Solution:

You need to deal with this quickly, or it's going to become a lot more expensive. The problem is a worn-out fuel pump cam follower, and if you don't replace it, you're going to start damaging your camshaft. Fortunately, replacing the fuel pump cam follower is very simple, and they are easy to find in the BreakerYard store.

Difficulty level

1

Vibrating Steering Wheel

Problem:

The steering wheel is vibrating excessively. It may be accompanied by a knocking or banging noise while turning the car.

Models affected:

Solution:

This will be a case of a worn-out top strut bearing. These are very easy to install, and you can easily find a replacement on our parts list for the S3.

Difficulty level

1

AirCon Issues

Problem:

The air-con unit is no longer working.

Models affected:

Solution:

There are lots of reports of S3s with malfunctioning AC, and there are two possible causes. First, try checking the aircon sensor, which you'll find very low-cost in our store and is a very easy job to install the replacement yourself. If that doesn't work, then the problem will be the AC compressor, which is a little more difficult to install but not too challenging.

Difficulty level

1

Rust on roof rails or door trims

Problem:

On both the roof rails and lower door trims, it is known for these areas to rust.

Models affected:

Solution:

If the rust is not too bad, you can rub it down, treat it and then repaint it. The Audi corrosion warranty is 10 years, so check to see if it can be fixed under this warranty.

Difficulty level

3

Electric window problems

Problem:

If you have been facing problems with the electric windows not going back up when pressing the button, this fault is caused by a broken window clip.

Models affected:

Solution:

You will need to replace the window clips, in order to resolve the problem. Have a look at the video below, for an idea on how this is done:

Difficulty level

3

Coil spring failure

Problem:

It is known for the coil springs to fail on the S3. The ends of these springs can shear off over time.

Models affected:

Solution:

You will need to fit replacement coil springs, so as to resolve the issue.

Difficulty level

3

MAF (Mass Air Flow) sensor failure

Problem:

It is common on the S3, for the mass airflow sensor to fail. If this part has failed, then you will have noticed a lack of power and poor overall engine performance.

Models affected:

Solution:

You can remove and clean the MAF sensor to sort the problem, but if this does not work, you will need to purchase a replacement MAF sensor.

Difficulty level

2

Misfiring/lack of power

Problem:

If you have begun to find that your S3 is lacking in power and/or the engine is misfiring, then the most likely cause is for the coil packs to have failed. This is a common issue on Audi cars, and the S3 is no different.

Models affected:

Solution:

Fitting a revised coil pack will sort the problem. The design has been revised, so hopefully this problem has been rectified. There was an Audi recall for replacing coil packs, so it is worth checking out if your car qualifies for this recall. If so, it will be fixed free of charge.

Difficulty level

2

Console Rattling

Problem:

The centre console area is rattling, with a lot of the rattle occurring from the trim that surrounds the gear lever. There may also be a rattling sound coming from the boot locking mechanism.

Models affected:

Solution:

This does tend to happen eventually, and it can be very frustrating. Some drivers have suggested that you should remove the console to find where the rattle is coming from, but if your Audi is still under warranty, it's best to have it checked over professionally. For the boot locking mechanism rattle, simply order a replacement from us and fit the new mechanism into place.

Difficulty level

3

Part you need

Bootlid Lock Mech

Part required

Bootlid Lock Mech

Get a quote for Bootlid Lock Mech

Reading these common Audi S3 problems should help you find out what is wrong with your Audi S3 – or just what to look out for in the future. We’ll also give suggestions on what to do if your Audi S3 does have one of these issues.