2007-2008 Audi RS4 Washer Pump Guide and Analysis
Keep your vision clear by fixing one of the most common and annoying failures on the B7 RS4.
- The 2007-2008 RS4 uses two separate washer pumps; one for the windshield and one for the headlights.
- Failure is common, and the main symptom is no spray combined with no humming sound from the pump.
- Replacement is a simple DIY job, accessible by removing the driver's side front wheel and fender liner.
- An aftermarket pump is a cost-effective and reliable solution for this specific part.
Is Your Audi RS4 Washer Pump Failing?
A non-working windshield washer system is more than a minor problem; it's a safety issue, especially in poor weather. If your 2007-2008 RS4 isn't spraying fluid, the washer pump is a very common part to fail. Diagnosing the problem is usually simple.
Common Symptoms of a Bad Washer Pump
Here are the most common signs that a washer pump has failed on your RS4:
- No Fluid Spray: This is the most obvious sign. The wipers move across the glass, but no fluid comes out.
- No Pump Sound: When you activate the washers, you should hear a distinct humming sound from the driver's side front wheel area. If it's silent, the pump motor has likely failed or isn't getting power.
- One System Works, The Other Doesn't: Because the RS4 has separate pumps for the windshield and headlights, one can fail while the other continues to work. This is a clear sign that a specific pump needs to be replaced.
- Fluid Leaks: Puddles of blue or green washer fluid under the front driver's side of the car can point to a cracked pump housing or a bad rubber seal where the pump enters the reservoir.
First, Check the Basics
Before ordering a new pump, always check the washer fluid level and the fuse for the washer system. If you can hear the pump motor running but the spray is weak or absent, you may have clogged nozzles, which can sometimes be cleared with a small pin. If you hear no noise at all, the pump itself is the most likely cause.
Choosing the Right Aftermarket Pump
For a part like a washer pump, an aftermarket replacement offers excellent value. The original OEM pump is a simple 12V motor that commonly fails with age, and there is little performance difference between an OEM unit and a quality aftermarket one for this specific component. Brands like Febi Bilstein and Vemo are well-known suppliers of parts for European vehicles and are generally considered reliable options. A standard "Replacement" branded pump will function identically to the original and save you money without a noticeable drop in quality or longevity for this part's simple function.
| Part Type | Estimated Cost |
|---|---|
| New OEM Pump | $60 - $100 |
| New Aftermarket Pump | $13 - $25 |
| Shop Labor | $100 - $180 |
Installation Insights
Replacing the washer pump on a B7 RS4 is a DIY-friendly job that can be done in about an hour with basic tools.
- Location: The washer fluid reservoir and both pumps are located in the front driver's side wheel well, behind the fender liner.
- Access: You will need to jack up the car, remove the driver's side front wheel, and remove the plastic fender liner screws to gain access.
- Procedure: The pumps are press-fit into the reservoir with a rubber grommet. You simply disconnect the electrical connector and hose, then pull the old pump straight out. Be prepared with a bucket, as all the washer fluid will drain out when the pump is removed. The windshield washer pump is the more accessible one, located at the back of the tank.
Pro Tip
It is highly recommended to replace the small rubber grommet that seals the pump to the reservoir. These can get old and brittle, causing leaks. A new grommet is an inexpensive part that ensures a good seal for your new pump.
Frequently Asked Questions
Are there any recalls for the RS4 washer pump?
No. A search of the National Highway Traffic Safety Administration (NHTSA) database shows no recalls for the washer pump system on the 2007-2008 Audi RS4.
Do I need to buy a specific pump for the windshield vs. the headlights?
Yes, they are different parts. The headlight washer pump is a higher-pressure unit. However, the windshield washer pump is a very common part shared across many Audi and Volkswagen models of the era, including the A4 and S4. Make sure you are ordering the correct pump for the system that has failed.
My pump is new, but it still doesn't work. What's wrong?
If a new pump doesn't solve the problem, re-check the fuse. The next step is to check the electrical connector for corrosion or damage. In rare cases, the control stalk on the steering column can fail, but this is much less common than the pump itself failing.
Is it difficult to replace the washer pump myself?
No, this is a job most DIYers can handle. It involves removing the wheel and fender liner to access the pump. The pump itself just pulls out and the new one pushes in. The entire job can be done in under an hour.
Technical Specifications
OEM Part Numbers: 1K5955651 1J5955651 1T0955651
12V electric motor pump, press-fit into washer fluid reservoir with a rubber grommet. The B7 RS4 uses two pumps: one for the windshield (rear of tank) and a separate one for the headlights (front of tank).
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.
- Audi RS4: