1978-1988 Audi 5000 Windshield Washer Pump: A Complete Replacement Guide
If your washer fluid isn't spraying, the pump is the most likely culprit—here's how to fix it.
- A silent pump is the clearest sign of failure; listen for the hum when you activate the washers.
- For this vintage Audi, an aftermarket pump like one from Trico is the standard, reliable replacement.
- This is a simple and inexpensive DIY repair that can be completed in under an hour.
- Always check the fuse and fluid level before assuming the pump is bad.
Symptoms of a Failing Windshield Washer Pump
Diagnosing a bad washer pump on an Audi 5000 is straightforward. The most common sign of failure is when you activate the washer switch and nothing happens. Here’s what to look for:
- No Sound: You should hear a distinct humming or whirring sound from the pump when the washer is activated. If it's silent, the pump motor has likely failed or isn't receiving power.
- No Fluid Spray: If you hear the pump running but no fluid comes out, the pump's internal impeller might be broken, or the system could have a clog or a leak.
- Weak or Uneven Spray: A pump that is starting to fail may lose pressure, resulting in a weak stream that doesn't effectively clean the windshield. This can also be caused by clogged nozzles.
Pro Tip: Check the Basics First
Before buying a new pump, confirm that the washer fluid reservoir is full. Also, check the fuse for the washer system to ensure it hasn't blown. Sometimes, the spray nozzles can get clogged with wax or debris; a small pin can be used to clear them.
Choosing a New Aftermarket Pump
For a classic vehicle like the 1978-1988 Audi 5000, finding a new original equipment (OEM) washer pump is nearly impossible. The most practical and available option is a new aftermarket part. Aftermarket pumps are designed to meet or exceed the original specifications and are a reliable, cost-effective solution.
Trico is a common aftermarket brand available for your Audi 5000. Their pumps are known for being a direct-fit replacement, designed for easy installation without needing any modifications. They are typically made from durable plastic to ensure a long service life.
Cost of Replacing an Audi 5000 Windshield Washer Pump
Replacing the washer pump is one of the more affordable repairs you can perform. The part itself is inexpensive, and if you do it yourself, the cost is minimal.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Pump (e.g., Trico) | $24.64 - $31.96 |
| Shop Labor | $60 - $120 |
| DIY Total Cost | $24.64 - $31.96 |
| Shop Total Cost | $85 - $152 |
Known Issues, Recalls, or TSBs
There are no active recalls or technical service bulletins (TSBs) from the NHTSA specifically for the windshield washer pump on the 1978-1988 Audi 5000. Issues with the washer system on these vehicles are typically due to normal age-related component failure rather than a manufacturing defect.
Frequently Asked Questions (FAQ)
Is it difficult to replace the washer pump myself?
No, this is a great DIY job for beginners. Access is usually straightforward, often by removing the washer fluid reservoir or an inner fender liner. The pump itself just pulls out of a rubber grommet. The entire job can typically be done in under an hour with basic hand tools.
Where is the washer pump located on my Audi 5000?
The windshield washer pump is almost always located on the washer fluid reservoir. It is press-fit into a grommet at the bottom of the tank. You will see an electrical connector and one or two fluid hoses attached to it.
I replaced the pump and it still doesn't work. What now?
If a new pump doesn't solve the problem, the issue is likely electrical. Use a multimeter to check for 12-volt power at the pump's electrical connector when a helper activates the washer switch. If there's no power, check the fuse again, the washer switch, or look for corroded wiring between the switch and the pump.
Can I drive with a broken windshield washer pump?
You can legally drive the vehicle, but it is not recommended, especially in bad weather or dirty road conditions. A lack of washer fluid can severely compromise your visibility, creating a serious safety hazard. It's a repair that should be done as soon as possible.
Technical Specifications
12V Electric Pump, push-fit into reservoir grommet.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.