Audi S3 Windshield Washer Pump Guide for 2014-2020 Models
If your washers have stopped spraying, this guide will help you diagnose the problem and choose the right replacement pump for your S3.
- Before buying a pump, confirm the fluid reservoir is full and listen for the pump motor's sound; silence points to a pump or electrical failure.
- Corroded wiring at the pump's connector is a common issue on this platform; inspect the connector before replacing the pump.
- The job is DIY-friendly and can often be done in about an hour by accessing the pump through the front wheel well.
- Always replace the rubber grommet seal when installing a new pump to prevent leaks.
Is Your S3's Washer Pump Failing?
A non-working washer system is a common issue, but it's not always the pump's fault. Before buying a new part, do a quick check: make sure the washer fluid reservoir is full. If it is, listen carefully when you activate the washers. If you hear absolutely no humming or whirring sound from the front of the car, the pump has likely failed or is not receiving power. 🎬 Watch: How to test if your washer pump is getting power. If you can hear the pump running but no fluid comes out, you may have clogged nozzles or a disconnected hose 🎬 See how to replace clogged or broken washer spray nozzles. instead.
Common Failure Symptoms
- No Sound, No Spray: The most definite sign of a failed pump or electrical issue. You activate the washers and nothing happens at all—no sound and no fluid.
- Pump is Silent: Even if the reservoir is full, a dead pump won't make the characteristic whirring noise when activated.
- Weak or Uneven Spray: If the fluid barely reaches the windshield, the pump's internal impeller may be worn out and failing to build enough pressure.
- Front or Rear Works, But Not Both: Since it's a dual-action pump, one side can fail while the other still functions. This points directly to a bad pump rather than a fuse.
Check for Wiring Problems First
On the Audi A3/S3 platform, the electrical connector or wiring harness for the washer pump can corrode, leading to a loss of power. Some owners replace the pump only to find the real issue was a bad wire. Before replacing the pump, it's wise to inspect the connector for any green or white corrosion and ensure the wires are intact.
Choosing the Right Aftermarket Washer Pump
For the 2014-2020 Audi S3, the OEM washer pump is a reliable choice, but quality aftermarket options can offer significant savings. Here’s an honest look at the available brands.
Brand Quality Tiers
- Vemo: Vemo is a German company that produces a wide range of aftermarket parts, often positioned as OE-quality alternatives. For a simple part like a washer pump, Vemo is a popular choice among VW/Audi owners. While general brand reviews are mixed, it's considered a viable mid-tier option that balances cost and expected performance.
- URO Parts: URO is known for being a budget-friendly brand. However, many enthusiasts in online forums for German cars advise caution, reporting poor longevity with more complex URO components like suspension parts or engine seals. For a non-critical and easy-to-replace part like a washer pump, it can be a cost-effective solution, but may carry a higher risk of premature failure compared to other brands.
- Trico: Trico is a long-standing, reputable brand best known for its wiper blades. They also manufacture universal and direct-fit washer pumps designed to meet OEM specifications. While there are fewer specific reviews for Trico pumps on Audi models, their reputation in the visibility category makes them a trustworthy consideration.
Cost of Replacing an Audi S3 Washer Pump
| Part Type | Estimated Cost |
|---|---|
| New OEM (Genuine Audi) | $80 - $105 |
| New Aftermarket (Vemo, URO, Trico) | $14 - $38 |
| Shop Labor | $100 - $200 |
Pro Tip: Replace the Grommet
The washer pump seals into the reservoir with a small rubber grommet. This grommet can become hard and brittle over time. Always replace the grommet when you replace the pump to ensure a leak-free seal. It's an inexpensive part that prevents future headaches.
Installation Overview
Replacing the washer pump is a manageable DIY job for those with basic tools. The pump is located at the bottom of the washer fluid reservoir, which is typically behind the fender liner in the front driver's or passenger's side wheel well. The most common method requires jacking up the car, removing the front wheel, and removing several screws to peel back the plastic fender liner to gain access. Some A3/S3 owners have reported success with an easier method: removing the fog light and its plastic grille, which can provide just enough room to reach and swap the pump without removing the wheel.
🎬 Watch: The easy way to replace the pump through the fog light.Frequently Asked Questions
Is it just a blown fuse?
It could be, but it's less likely if only one direction (e.g., front) has stopped working. The washer pump often shares a fuse with other components. If the fuse is blown, you may notice other electrical items not working. Always check your owner's manual for the correct fuse location and inspect it first.
My S3 has headlight washers. Do I have a different pump?
Yes, most likely. Vehicles with headlight washers typically have two separate pumps in the reservoir: a standard dual-action pump for the windshield/rear window and a second, high-pressure pump just for the headlights. Make sure you are ordering the correct pump for the system that has failed.
My 'Low Washer Fluid' warning is on, but the tank is full. Is that related?
This is a known issue but is not related to the pump itself. Audi has a Technical Service Bulletin (TSB 92 23 36) for this exact problem. It's caused by the fluid level sensor's sensitivity being affected by certain types of washer fluid or additives. The fix is to drain the fluid, clean the sensor probes inside the tank, and refill with a standard, approved washer fluid. Do not replace the sensor or the pump for this issue.
Can I replace the washer pump myself?
Yes, this is a very DIY-friendly job. With basic tools like a jack, jack stands, and a Torx screwdriver set, most people can complete the replacement in about an hour. The pump itself just pulls out of the reservoir and the new one pushes in.
Helpful Videos
Technical Specifications
OEM Part Numbers: 1K6955651 1K5955651 1J5955651
12V Dual Pump for front and rear window cleaning.
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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 S3:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your S3's Washer Pump Failing?
- Common Failure Symptoms
- Check for Wiring Problems First
- Choosing the Right Aftermarket Washer Pump
- Brand Quality Tiers
- Cost of Replacing an Audi S3 Washer Pump
- Pro Tip: Replace the Grommet
- Installation Overview
- Frequently Asked Questions
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