Audi RS4 (B7) Windshield Washer Pump Replacement Guide (2007-2008)
Keep your vision clear by fixing one of the most common and annoying failures on the B7 RS4.
- The washer pump on the 2007-2008 RS4 often powers both the windshield and headlight washers.
- Before replacing the pump, listen for the motor sound. No sound points to a pump or electrical issue.
- Always check the fuse first, and consider replacing the rubber grommet with the pump to prevent future leaks.
- Accessing the pump requires removing the driver's side front wheel and wheel well liner.
Is your Audi RS4 washer fluid not spraying?
A non-working windshield washer system is a common issue on the B7 RS4 as it ages. Usually, the problem is a failed windshield washer pump. This part lives a hard life, and after years of use, the internal motor simply wears out. Other times, the electrical connection can corrode or the pump housing itself can crack and leak. Before you can get back to enjoying your high-revving V8, you need to be able to see out of the windshield.
Vehicle Year Confirmation
This guide applies specifically to the B7 generation Audi RS4, which was officially sold in North America for the 2007 and 2008 model years. If your vehicle is outside this range, the part and procedure may be different.
Symptoms of a Failing Washer Pump
A bad washer pump will give you a few clear signs. Here’s what to look and listen for:
- No Fluid Spray: The most obvious symptom. You pull the stalk, the wipers move, but no fluid comes out.
- No Pump Sound: When you activate the washers, you should hear a distinct whirring or buzzing sound from the front driver's side of the car. If it's silent, the pump is likely not getting power or has failed completely.
- Fluid Leaks: Puddles of blue or green washer fluid under the front driver's side of the car are a strong indicator. The pump itself, or the rubber grommet it sits in, can leak when they get old.
- Headlight Washers Also Not Working: Because the systems are often connected, a single pump failure will usually stop the headlight washers from working as well.
Choosing the Right Aftermarket Pump
You don't need to pay dealership prices for a quality replacement. Aftermarket pumps offer a great value. The main choice comes down to budget and brand reputation.
Brand Tiers
- Economy (URO Parts): URO Parts is a well-known brand that provides affordable alternatives to OEM parts. For a simple component like a washer pump, it is a budget-friendly choice that will get your system working again.
- Standard (Trico): Trico is a long-established brand in the automotive aftermarket, famous for its wiper systems. A Trico pump is considered a reliable, standard replacement part that you can install with confidence.
Pro Tip: While replacing the pump, it's a good idea to also replace the small rubber grommet that seals the pump to the reservoir. This grommet can become brittle and cause leaks, and it's an inexpensive part to replace at the same time.
| Part Type | Estimated Cost |
|---|---|
| New OEM (Genuine Audi) | $55 - $105 |
| New Aftermarket (Trico, URO Parts) | $13.87 - $37.72 |
| Shop Labor | $110 - $165 |
Frequently Asked Questions
Is it hard to replace the washer pump on an RS4?
No, it is a DIY-friendly job for most home mechanics. The process involves jacking up the car, removing the driver's side front wheel and wheel well liner to access the pump on the reservoir. The pump itself is usually held in by a simple clip and a rubber grommet. The most common issue is dealing with the remaining washer fluid in the tank, so be prepared for it to drain out.
My pump is new but it still doesn't work. What else could it be?
If a new pump doesn't solve the issue, check the basics first. Make sure the fuse for the washer system is not blown. After that, the problem could be electrical. Check for corrosion on the pump's electrical connector or the wiring harness leading to it. In some cases, the washer stalk (switch) on the steering column can fail, but this is less common than a pump failure.
Why do my headlight washers and windshield washers not work?
On the B7 RS4, both the headlight and windshield washers are typically powered by the same pump. A failure in this single pump will cause both systems to stop working. When you diagnose the problem, if you hear no pump motor sound at all, it confirms that the issue lies with the pump or its electrical supply, not a clog in the lines.
Could the problem just be a clog?
It's possible, but less likely to cause a total failure. If you can hear the pump running but the spray is weak or non-existent, you might have clogged nozzles or a kinked line. You can try clearing the nozzles with a small pin. However, if you hear no noise from the pump at all, the problem is almost certainly the pump itself or its electrical circuit.
Technical Specifications
OEM Part Numbers: 1K5955651 1J5955651 1T0955651
12V electric pump, typically mounted to the washer fluid reservoir with a rubber grommet.
We Have This Part in Stock
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.
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