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Q50 · Power

Q50 Spark plugs

Your Q50

Pick your year to see what fits.

3.0t cars make 300 hp, or 400 hp on the Red Sport.

Restores lost power
Hard$60–$1002–3 hrs
All Q50 mods

Why do it

Worn plugs cost power and throttle response.

Tools you'll need

Starting out? See our budget tool list.

Parts to buy

Double-check fitment before buying. We may earn a commission when you buy through these links, at no extra cost to you.

Before you start

  • Work on a cold engine. Do one plug at a time.

Steps

  1. Remove the engine parts

    • Take off the engine cover and intake parts in the way.
    Watch this step (on a Q50 VQ37) (0:37–1:18)

  2. Get ready

    • Unplug the coils and clear the plugs.
    Watch this step (1:18–3:31)

  3. Swap the plugs

    • Pull each coil and swap the plug. Start each new one by hand.
    Watch this step (3:31–4:29)

How to know it worked

Did this guide work for you?

Safety first

  • Park on flat ground, set the parking brake and chock the wheels.
  • Never get under a car held up only by a jack. Use jack stands.
  • Let the engine and exhaust cool first.
  • Disconnect the battery before unplugging electrical parts.
  • Wear safety glasses.
  • If something doesn't match your car, stop and ask a shop.

Follow your part's instructions and your service manual's torque specs.