Top 5 Audi 100 Problems

by | Dec 21, 2022 | Audi Problems

If you’re considering purchasing an Audi 100, it’s essential to be aware of any potential problems that may arise with the vehicle. In this post, we’ll outline the top 5 most commonly reported problems with the Audi 100, so you can make an informed decision before making a purchase. From transmission failure to suspension issues, we’ll cover everything you need to know about the potential problems that may arise with this popular model. Keep reading to learn more about the Audi 100 and the issues you should be aware of before buying.

1. Abnormal Noise From Suspension on Audi 100

If you own an Audi 100 and have been hearing a clunking noise when driving over bumps, accelerating, or stopping, it may be due to worn bushings located around the subframe, suspension, and steering. According to RepairPal, this problem has been reported by 8 people and affects 5 model years of the Audi 100 (1990, 1991, 1992, 1993). The average mileage of vehicles with this problem is 190,000 miles. Worn bushings can cause abnormal noise from the suspension and should be addressed by a mechanic to prevent further damage to the vehicle.

2. Inspecting CV Boots and Joints on Audi 100

According to RepairPal, it is recommended to have the constant velocity (CV) boots and CV joints inspected at each service for Audi 100 vehicles. This can help prevent the need to replace the CV half shaft or CV joint by catching and servicing torn CV boots early on. This problem has been reported by 5 people and affects 5 model years of the Audi 100 (1990, 1991, 1992, 1993). It is important to follow the recommended maintenance schedule for your vehicle to ensure proper functioning of all components and to catch any potential issues before they become major problems.

3. Timing Belt and Water Pump Inspection for Audi 100

The water pump and timing belt in an Audi 100 may require regular inspection to help prevent engine overheating and costly repairs. According to Repairpal, 4 people have reported this issue with the 1992-1994 model years, with an average mileage of 160,000. The cost to replace the timing belt ranges from £662 to £741, while the water pump replacement cost ranges from £598 to £722. It is important to keep these components in good working condition to ensure that the engine operates properly and to avoid potential issues with engine overheating.

Oil Leaks on Audi 100

Drivers of Audi 100s between the model years 1992, 1993, and 1994 may experience external oil leaks from the valley pan gasket under the intake manifold and/or the head gasket. Three people reported this problem with no comments. The average cost for an Audi 100 Head Gasket Replacement is between £1,515 -£1,930 while replacing the Intake Manifold Gasket runs from £661 -£776 in UK pounds. If you believe your car has an issue, it’s important to understand what repair costs are involved in getting your vehicle back into tip top shape!

Starting Issues with Audi 100

Starting difficulties on 1990-1991 model year Audi 100 vehicles may be caused by issues with air leaks and the fuel injection system. It is important to diagnose and address these issues promptly to ensure that the vehicle starts and runs properly. The cost of repairing these issues will depend on the specific problem and the necessary repairs. It is recommended to consult a mechanic or dealership for a specific cost estimate and repair plan.


Based on the information provided, the top 5 problems reported for the Audi 100 include oil leaks from the valley pan gasket and/or head gasket, starting difficulties due to issues with air leaks and the fuel injection system, transmission problems, engine overheating, and problems with the fuel pump. These issues can range in severity and may require different levels of repair or maintenance. It is important to regularly maintain and service the Audi 100 to help prevent these problems from occurring and to ensure that the vehicle runs smoothly. In the event that any of these issues do arise, it is recommended to consult a mechanic or dealership for a proper diagnosis and repair plan.



Potential issues, causes, and solutions have been identified in the above article based on the experiences of car owners and repairers, as well as web materials such as forum blogs and technical support bulletins. This data is supplied exclusively for the purpose of reference. Only appropriately qualified persons should perform repairs and/or changes on your vehicles.

While it’s important to keep in mind, it’s also important to note that the amount of times anything is mentioned here should not be seen as a sign of its reliability or frequency. Various owners, driving in different ways, and caring for their vehicles in distinct ways will cause two identical vehicles to perform differently.

As previously said, this material is supplied primarily for reference reasons; nonetheless, we hope that by doing so, we will be able to supply you with essential knowledge that will allow you to make informed decisions whenever you encounter any of the aforementioned setbacks.