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Audi S8 Windshield Washer Pump Grommets

Audi S8 Windshield washer pump grommets

Starting at $21.95, AutoBuffy stocks 2 windshield washer pump grommets from URO. This small rubber seal seats the washer pump in the fluid reservoir, creating a watertight connection. When it cracks or deteriorates, washer fluid leaks around the pump base, the system loses prime, and the pump can burn out — leaving you with no spray and a puddle under the hood.

Signs your Audi S8 needs a new windshield washer pump grommet

  • Washer fluid puddles on the ground or inside the engine bay near the reservoir, even when the system is not running
  • Washer fluid level drops steadily without visible spray nozzle dripping or hose leaks elsewhere
  • Washer pump runs but delivers weak, intermittent, or no fluid — the pump loses prime when the seal leaks air
  • You can see wet residue, mineral staining, or cracked rubber around the base where the pump inserts into the reservoir
  • The pump feels loose or wiggles slightly when pressed — a sign the grommet has shrunk, hardened, or torn
  • Washer pump burns out prematurely or hums without pumping, caused by running dry due to an unsealed, leaking reservoir

Which windshield washer pump grommet should you buy for your Audi S8?

The grommet must match the pump outlet diameter and reservoir port size on your Audi S8 exactly — even a few millimeters off will cause leaks or prevent the pump from seating. Most Audi S8 owners choose between an OEM-spec replacement and a universal-fit option; both can work, but fitment precision is the deciding factor.

OEM-spec vehicle-specific grommet
Best for
Owners who want guaranteed fit with no modification
What you get
Exact dimensions, durometer, and port geometry matched to the Audi S8 reservoir and pump
Universal rubber grommet (sized to match)
Best for
Budget-conscious repairs when OEM part is unavailable or discontinued
What you get
Standard neoprene or EPDM rubber ring sold by pump outlet diameter; requires confirming ID/OD measurements before purchase
Pump-and-grommet kit
Best for
Replacing a failed or burnt-out pump at the same time
What you get
New pump pre-fitted with a fresh grommet so both sealing surfaces mate correctly from the start
Heavy-duty EPDM grommet
Best for
Vehicles in extreme climates or those using concentrated washer fluid formulas
What you get
Superior resistance to temperature cycling, ozone, and chemical exposure compared to standard rubber grommets

Windshield washer pump grommets brands we stock for your Audi S8

URO
2 options · from $21.95

Replacing the windshield washer pump grommet on a Audi S8

Easy⏱ 15–30 minutesFlathead screwdriver or trim pry toolNeedlenose pliersClean rag or shop towelsSmall bucket or drain pan

Drain or siphon the washer reservoir to prevent spills, then disconnect the electrical connector and hose from the pump and pull the pump straight out of the reservoir port. Pry the old grommet off the pump outlet, press the new grommet firmly into place until it seats evenly, then reinsert the pump into the reservoir with steady pressure until the grommet seals flush against the port wall. Refill the reservoir, run the washer system, and inspect the joint for any remaining seepage before closing the hood.

Frequently asked questions

How much does it cost to replace windshield washer pump grommets on a Audi S8?
The grommet itself starts at $21.95 and is one of the least expensive seals on the Audi S8. Total repair cost stays low because installation requires no special equipment. If the pump also failed due to running dry, budget for a replacement pump as well, which is typically the larger share of the repair cost.
Can I drive my Audi S8 without fixing a leaking washer pump grommet?
You can drive safely in the short term, but you should not ignore it. Continuing to operate the washer system with a leaking grommet allows the pump to run dry, which overheats the motor and causes premature pump failure. A cracked grommet costs a fraction of what a replacement pump does, so fixing it promptly saves money.
How do I know if the grommet is leaking or if the pump itself is cracked?
Inspect the reservoir with a flashlight while the fluid level is full. Grommet leaks appear as seepage or drips specifically around the pump-to-reservoir joint. Cracks in the reservoir itself produce wet spots elsewhere on the tank. If the leak stops when you remove the pump and plug the port, the grommet is the culprit, not the reservoir.
Is replacing a windshield washer pump grommet on a Audi S8 a DIY job?
Yes, for most Audi S8 owners this is a straightforward DIY repair. The reservoir is typically accessible without lifting the vehicle, the pump pulls out by hand or with light prying, and the old grommet pries off the pump outlet. The hardest part is often accessing the reservoir if it sits behind a wheel liner or air box.
Does the grommet come with a new washer pump, or do I buy it separately?
Grommets are often sold separately as a standalone seal because they wear out faster than the pump motor itself. Some aftermarket pumps include a new grommet in the box — check the product listing before ordering. If your pump is still functional and just the seal is leaking, buying only the grommet is the correct and more economical fix.
What material should a windshield washer pump grommet be made from?
Look for EPDM or neoprene rubber, both of which resist the alcohol, detergents, and anti-freeze agents found in washer fluid. Standard rubber or PVC grommets can swell or crack when exposed to washer fluid chemistry over time. OEM-spec grommets for the Audi S8 are formulated for the exact fluid types and temperature ranges the reservoir encounters.

Shop windshield washer pump grommets by year for the Audi S8

201820172016201520142013200320022001

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