Spark Plug: Service and Repair
Removing And Installing Spark Plugs
Tools
Technical values
Preliminary work
1. Remove air cleaner housing.
2. Remove rear wheels using special tool socket-wrench insert P300 so as not to damage the rims.
3. Remove rear apron.
4. Remove bumper.
5. Remove the two charge air coolers.
Removing spark plugs
1. Screw off M6 nut -1- on protective plate.
2. Unscrew two Torx screws (M6 x 20) -Arrows- on the turbocharger.
3. Pull intake air lines out of the flange on the turbocharger.
4. Press intake air lines out of the brackets -Arrow- in the engine compartment.
CAUTION:
Risk of engine dropping down.
- Danger of fatal injury and damage to property.
- Secure the engine with a suitable mounting jack.
5. Support engine with a mounting jack.
6. Screw off M12 collar nuts on the two engine mountings.
7. Lower engine carefully.
8. Remove heat protection panels at the sides by screwing off the two speed nuts on each one.
9. Release cable plugs -1- on the electronic boost pressure adjusters on the turbochargers and pull them off.
10. Unscrew hexagon socket head bolt (M6 x 25) -Arrow- on the right electronic adjuster using a long socket-wrench insert (a/f 5) with a ball head.
11. Unscrew hexagon socket head bolts (M6 x 25) -Arrows- on the right electronic adjuster using a long socket-wrench insert (a/f 5) with a ball head.
12. Press hinge socket -1- off the ball joint and remove right electronic adjuster.
13. Unscrew two Torx screws (M6 x 12) -Arrows- and remove cover plates.
14. Slide rubber sleeves down on the ignition coil connectors.
15. Release cable plugs -1- and pull them off the ignition coils.
16. Unscrew inner Torx screws (M6 x 25) -Arrows-. The intake air line must be moved when removing the ignition coil on cylinder 3.
17. Remove ignition coils.
CAUTION:
Incorrect tool for changing the spark plugs.
- Ceramic body breaks.
- Use approved tool only.
18. Unscrew the spark plugs using the tool spark plug socket wrench NR.14 with 3/8" extension, 16° movable NR.15.
Installing spark plugs
CAUTION:
Incorrect tool for changing the spark plugs.
- Ceramic body breaks.
- Use approved tool only.
1. Install spark plugs using spark plug socket wrench NR.14 and 3/8" extension, 16° moveable NR.15. - Tightening torque: 30 Nm (22 ftlb.) - Tightening torque: 25 Nm (19 ftlb.)
2. Insert ignition coils into the spark-plug recesses and tighten the two M6 x 25 Torx screws on each one. - tightening torque: 10 Nm (7.5 ftlb.)
3. Insert and tighten ignition coil screws that are difficult to reach (cylinder 2) using a Torx bit with a ball head.
4. Connect cable plugs and position rubber sleeves on the coils. The cable plugs must engage audibly; check that they are seated securely.
5. Insert the heat shields again and fasten them in place using two Torx screws (M6 x 12) -arrows- on each one. - tightening torque: 10 Nm (7.5 ftlb.)
6. Clip in hinge socket on electronic adjuster -1- on side 4-6.
7. Insert and tighten hexagon socket head bolts (M6 x 25) -arrows- using a long socket-wrench insert (a/f 5) with a ball head. - tightening torque: 10 Nm (7.5 ftlb.)
8. Insert and tighten hexagon socket head bolt (M6 x 25) -arrow- using a long socket-wrench insert (a/f 5) with a ball head. - tightening torque: 10 Nm (7.5 ftlb.)
9. Connect cable plugs -1- to the electronic adjusters and lock them. The cable plugs must engage audibly. Pull on the plugs to check that they are seated securely.
CAUTION:
Assembly of deformed heat shields.
- Damage will be caused through heat build up if deformed heat shields are installed.
- Check heat shields for deformation, fixing of the aluminium braided cord, tears and missing or damaged fixing tabs.
- Damaged or distorted heat shields must be straightened or replaced.
10. Fit heat shields at the sides by screwing on and tightening the two speed nuts on each one. - tightening torque: 3.5 Nm (2.5 ftlb.)
CAUTION:
Risk of engine dropping down.
- Danger of fatal injury and damage to property.
- Secure the engine with a suitable mounting jack.
11. Lift the engine with the mounting jack.
12. Fit and tighten M12 collar nuts on the engine mountings. - tightening torque: 85 Nm (63 ftlb.)
13. Remove mounting jack.
14. Press intake air lines with the rubber sleeves into the brackets -arrow-.
15. Fit new O-rings on the intake air lines and grease lightly with Kluber Syntheso glep (available from Porsche Parts Service).
16. Insert intake air lines into the flanges on the turbocharger.
17. Fit M6 nut -1- on the protective plate and tighten it. - tightening torque: 10 Nm (7.5 ftlb.)
18. Fit Torx screws (M6 x 20) -arrows- on the intake air lines and tighten them. - tightening torque: 10 Nm (7.5 ftlb.)
Subsequent work
1. Install the two charge air coolers.
2. Install bumper.
3. Install rear apron.
4. Fit rear wheels using special tool socket-wrench insert P300 so as not to damage the rims. - Tightening torque: 130 Nm (96 ftlb.)
5. Install air cleaner housing.