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Audi A6 Vacuum Pump Gaskets

Audi A6 Vacuum pump gaskets

Starting at $8.95, AutoBuffy stocks 3 vacuum pump gaskets from Elring for the Audi A6. The vacuum pump gasket seals the junction between the pump and the engine block or cylinder head, keeping oil in and air out. A failed gasket causes oil leaks and vacuum loss, which can compromise brake boost, emissions systems, and engine cleanliness.

Signs your Audi A6 needs a new vacuum pump gasket

  • Visible oil seeping or pooling at the base of the vacuum pump where it meets the engine
  • Soft or spongy brake pedal caused by vacuum loss reducing brake booster assist
  • Engine oil level dropping without a clear source of the leak
  • Hissing or sucking noise near the vacuum pump at idle or under load
  • Check engine or brake warning light triggered by low vacuum pressure in boost-assisted systems
  • Oil residue or burning smell on nearby exhaust components where leaked oil contacts hot metal

Which vacuum pump gasket should you buy for your Audi A6?

The main decision comes down to material — rubber, cork, or multi-layer fiber — and whether you want an OEM-equivalent fit or an upgraded aftermarket seal. Some Audi A6 applications also require a gasket that integrates an O-ring or sealing bead, so confirming the exact sealing style for your engine is the most important step before purchasing.

OEM-Equivalent Paper/Fiber Gasket
Best for
Budget-conscious repairs on engines with moderate mileage
What you get
Accurate fitment to factory dimensions, straightforward installation, good short-term seal
Molded Rubber or Rubber-Coated Gasket
Best for
High-heat or high-vibration engines where a rigid gasket may crack
What you get
Better resistance to temperature cycling and minor surface irregularities, longer service life
Multi-Layer Steel (MLS) Gasket
Best for
Performance engines or applications with high oil pressure
What you get
Maximum durability, precise crush control, excellent resistance to blowout under pressure
Gasket Kit (gasket + O-ring + seals)
Best for
Complete reseal jobs or when the old gasket damaged seating surfaces
What you get
All sealing components in one purchase, eliminates repeat trips for missing parts

Vacuum pump gaskets brands we stock for your Audi A6

Elring
3 options · from $8.95

Replacing the vacuum pump gasket on a Audi A6

Moderate⏱ 1–2 hoursSocket set and ratchetTorque wrenchGasket scraper or plastic scraperBrake cleaner or gasket-dissolving solventClean lint-free rags

Begin by disconnecting the vacuum line and removing the bolts securing the vacuum pump to the engine, taking note of bolt length and position if they vary. Thoroughly clean both mating surfaces of all old gasket material and oil before positioning the new gasket — no sealant is required in most applications unless the manufacturer specifies it. Reinstall the pump bolts in a cross pattern and tighten to the manufacturer's specified range, then check for leaks at idle before returning the vehicle to service.

Frequently asked questions

How much does it cost to replace vacuum pump gaskets on a Audi A6?
The gasket itself starts at $8.95 at AutoBuffy. Total repair cost depends on labor time in your area, but because accessing the vacuum pump can require removing ancillary components on some engines, shop labor can add significantly to the part price. DIY installation keeps costs closest to the part price alone.
Can I drive my Audi A6 with a leaking vacuum pump gasket?
Driving with a leaking vacuum pump gasket is not recommended. Oil loss can accelerate engine wear, and if vacuum pressure drops enough to reduce brake booster assist, stopping distances increase. Short trips to a shop are generally acceptable, but extended driving risks making the repair more extensive and less safe.
How long does a vacuum pump gasket last on a Audi A6?
Vacuum pump gaskets generally last anywhere from several years to the life of the vehicle, depending on material quality, engine operating temperatures, and oil change frequency. Dirty or degraded oil accelerates gasket deterioration. If you are already replacing the vacuum pump itself, always replace the gasket at the same time regardless of apparent condition.
Do I need to resurface the mating surface before installing a new vacuum pump gasket on my Audi A6?
Yes, in most cases. Any oil residue, old gasket material, or corrosion on the pump or engine mating surface should be cleaned and inspected before installation. A warped or gouged surface will cause the new gasket to leak almost immediately. Light surface cleanup with a gasket scraper and solvent is usually sufficient for flat, undamaged surfaces.
Is a vacuum pump gasket the same as a vacuum pump O-ring on the Audi A6?
Not always. Some Audi A6 engines seal the vacuum pump with a flat gasket, others use a molded O-ring groove, and some use both. The sealing design is engine-specific. Always cross-reference your part number or use the AutoBuffy fitment tool to confirm whether your application requires a gasket, an O-ring, or a combined kit.
Will a vacuum pump gasket leak cause my Audi A6 to fail an emissions test?
It can. A vacuum leak from a failed gasket can disrupt the operation of emissions-related systems such as the EGR and evaporative emissions controls, potentially triggering a check engine light. A stored fault code related to vacuum or boost pressure will typically cause an automatic emissions test failure in most states.

Shop vacuum pump gaskets by year for the Audi A6

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