Replacing Spark Plugs

Removing And Installing Spark Plugs On DFI Engines

Tools







Technical values







Preliminary work
1. Switch off ignition and remove ignition key.

Remove bar ignition modules.

Removing spark plugs

CAUTION:
Broken spark plug electrodes.
- Bits of electrodes can fall into the combustion chamber.

- Only check electrode gap of spark plugs, but do not bend them.
- Spark plugs with an incorrect electrode gap must be replaced.

INFORMATION:
- Use only spark plugs approved by Porsche AG.
- Check electrode gap before screwing in a new spark plug.







1. Remove spark plugs using special tool spark plug wrench 3122 B.







2. Check electrode gap. - Nominal value: 0.9 mm - Maximum value: 1.1 mm

Installing spark plugs

CAUTION:
Broken spark plug electrodes.
- Bits of electrodes can fall into the combustion chamber.

- Only check electrode gap of spark plugs, but do not bend them.
- Spark plugs with an incorrect electrode gap must be replaced.

INFORMATION:
- Use only spark plugs approved by Porsche AG.
- Check electrode gap before screwing in a new spark plug.







1. Check electrode gap. - Nominal value: 0.9 mm - Maximum value: 1.1 mm







2. Tighten spark plugs using special tool spark plug wrench 3122 B. - Tightening torque: 20 Nm (15 ftlb.) - Tightening spark plugs using spark plug wrench

Subsequent work
Install bar ignition modules.