1999 Audi A8 Windshield Wipers Aren't Working

Common Causes of Non-Functional Windshield Wipers in Your 1999 Audi A8 and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
75% chance it's the
Wiper Motor
0%
25% chance it's the
Switch
The most common reasons a 1999 Audi A8 windshield wipers aren't working are broken wiper motor and issues with the switch.
  • Wiper Motor: A faulty wiper motor or a bad electrical connection can result in intermittent or non-functioning windshield wipers.
  • Switch: A faulty switch can result in intermittent or complete failure of the electrical component it controls, leading to malfunctioning systems.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 1999 Audi A8 windshield wipers aren't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A failed windshield wiper motor will do one of two things in the event of failure. First, it can intermittently work, meaning when the wiper switch is turned on, the windshield wipers may activate, and run for a random amount of time. This may happen at random, or change with a bump. Lastly, the windshield wipers could show no signs of activity, indicating motor failure.

The moment water touches the windshield, you know if you need new windshield wiper blades. If your wiper blades are torn, cracked, hard, or brittle, it is time for replacement. Wipers should also be replaced if the wiper blades only smear water around, seem to make a mess, streak the windshield, and miss large patches. If you are unhappy with the current wiper blades on your vehicle, this is a very economical change to make.

Windshield wiper arms will be replaced mainly for aesthetic reasons or damage. If the windshield arms become bent or rusted, the windshield wipers may not contact the windshield at the proper angle, or there may be no contact at all. Also, the sun will take a toll on these parts after years of use, and fading or clear coat peeling will result, not to mention rust.

What are the steps to diagnose the non-functioning windshield wipers on a 1999 Audi A8?

To effectively diagnose non-functioning windshield wipers on a 1999 Audi A8, start with the simplest solutions before progressing to more intricate assessments. Begin by checking the wiper motor; if you hear it running but the wipers remain stationary, this could indicate a motor issue. Next, inspect the wiper switch to ensure it is operational, as a faulty switch can prevent the wipers from engaging. Don’t overlook the condition of the wiper blades; worn or damaged blades can significantly impair performance. If the motor is silent, the problem may lie with the wiper module, which may require professional diagnosis and replacement. Additionally, verify that the windshield wiper fluid reservoir is adequately filled, as low fluid levels can affect wiper functionality. If these steps do not resolve the issue, consulting a professional mechanic is advisable for a thorough diagnosis and repair. By following this structured approach, you can efficiently identify and address the problem with your Audi A8's windshield wipers.

What causes windshield wipers to fail on a 1999 Audi A8?

When dealing with windshield wiper failure on a 1999 Audi A8, it's essential to understand the common problems that could be at play. A primary culprit is often the wiper motor, which is responsible for the movement of the wiper blades; if it malfunctions, the wipers may not operate at all. Additionally, the wiper switch can be a source of issues, as a faulty switch may prevent the wipers from responding to commands. Another potential problem lies within the wiper transmission, which can disrupt the timing and positioning of the wipers, leading to erratic behavior or complete failure. If you notice that the windshield washer fluid isn't spraying, the washer pump might be defective, indicating a need for replacement. Furthermore, the wiper control module, integral to the wiper motor's function, can also fail, necessitating attention. Lastly, it's crucial to check the fuses related to the wiper system, as a blown fuse can easily lead to wiper inoperability. By systematically addressing these common issues, you can effectively troubleshoot and restore the functionality of your windshield wipers.

How urgent is it to repair the non-functioning windshield wipers on a 1999 Audi A8?

When it comes to repairing non-functioning windshield wipers on a 1999 Audi A8, the urgency cannot be overstated. While it may not seem like an immediate emergency, the implications of driving without effective wipers can be severe. Impaired visibility during rain or snow can lead to dangerous driving conditions, increasing the risk of accidents. Moreover, the underlying causes of wiper failure, such as blown fuses, malfunctioning motors, or faulty controls, can escalate if left unaddressed, potentially leading to more extensive and costly repairs. Additionally, environmental factors like extreme weather or loose components can exacerbate the issue, making timely repairs even more critical. Therefore, prioritizing the repair of your windshield wipers is essential not only for your safety but also for the safety of others on the road, ensuring that you maintain clear visibility in all driving conditions.

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1999 Audi A8 Windshield Wipers Not Working: Causes & Repairs