Installing Spark Plugs

NOTIFICATION 

Broken spark plug electrodes 

• Bits of electrodes can fall into the combustion chamber 

Information 

• Only use spark plugs approved by Porsche AG!
• Check electrode gap before screwing in a new spark plug.
• The electrode gap is printed on the spark plug as a numeric code and is interpreted differently depending on the manufacturer.

For example, for an NGK spark plug: B C P R 7 E S - 11 -> 11 = 1.1 mm electrode gap 

Example for a Bosch spark plug: W R 7 D T C X -> X = 1.1 mm electrode gap 

• There is no number code printed on spark plugs with the PORSCHE part number 0PB905612  (BOSCH R8). Electrode gap = 0.7 mm 

1. Check electrode gap.

   > Control value 0.7 mm + 0.1 mm 

2. Tighten spark plugs using > 3122B - Spark plug wrench  .

   Spark plugs for cylinders 3 and 6 need a shorter tool setup! Use a medium extension with a cardan joint and spark plug socket for this. 

   For re-installing the spark plug: > Tightening torque 25 Nm (19 ftlb.) + 1.5 Nm (1 ftlb.) 

   For a new spark plug: > Tightening torque 30 Nm (22 ftlb.) + 1.5 Nm (1 ftlb.) 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Spark plug with tool (shown as an example)