Cylinder Head Cover
Cylinder Head Overview
• The illustration shows the cylinder head cover for cylinder bank 2 (left side).
1 Bolt
• 9 Nm
2 Intake Tube Bracket
3 Bolt
• 9 Nm
4 O-ring
• Replace
5 Oil Filler Neck
• To remove, lift the tab, turn the oil filler neck to the left and remove it.
6 Seal
7 Seal
• Replace if damaged or leaking.
8 Cap
9 Bolt
• 5 Nm
10 Fuel Return Line
• Note the rules of cleanliness. Refer to => [ Clean Working Conditions ] Fuel Supply.
11 High Pressure Line
• Note the rules of cleanliness. Refer to => [ Clean Working Conditions ] Fuel Supply.
• Mark the assignment of the high pressure lines to the injector units.
• Do not change the angles of the high pressure lines.
• Tighten the high pressure line to the fuel rail, with a 19 mm wrench.
• Tighten the high pressure line to the fuel rail, with a 14 mm wrench.
• Tighten the high pressure line to the fuel injector.
12 O-ring
• Replace
13 Nut
• 9 Nm
• Tighten in an alternating sequence and in stages.
14 Tensioning Bracket
• Replace when replacing the fuel injector.
15 Fuel Injector
• Note the rules of cleanliness. Refer to => [ Clean Working Conditions ] Fuel Supply.
• Removing and installing, refer to => [ Cylinder Head Cover ] Service and Repair.
• The high pressure line and tensioning bracket must be replaced to replace the injector.
16 O-ring
• Replace
17 Copper Sealing Ring
• Replace
18 Bolt
• 9 Nm
• Replace if damaged or leaking
• Tighten in a diagonal sequence and in steps.
19 Cylinder Head Cover
• Removing and installing, refer to => [ Cylinder Head Cover ] Service and Repair.
20 Cylinder Head Cover Gasket
• Replace if damaged or leaking.
Tightening the High Pressure Line to the Fuel Rail with a 14 mm Wrench
- Tighten the union nut for the high pressure line by hand.
- Make sure the high pressure line is seated free of stress.
- Tighten the high pressure line using torque wrench (5-50 Nm) (V.A.G 1331) and socket 14 mm (3150).
• Tightening specification: 25 Nm.
Tightening the High Pressure Line to the Fuel Rail with a 19 mm Wrench
- Tighten the union nut for the high pressure line by hand.
- Make sure the high pressure line is seated free of stress.
- Tighten the high pressure line using torque wrench (5-50 Nm) (V.A.G 1331) and tool insert AF 19 (V.A.G 1331/5).
• Tightening specification: 25 Nm.
Tightening the High Pressure Line to the Fuel Injector with a 17 mm Wrench
- Tighten the union nut for the high pressure line by hand.
- Make sure the high pressure line is seated free of stress.
- Tighten the high pressure line to the fuel injector using torque wrench (5-50 Nm) (V.A.G 1331) with reversible ratchet (V.A.G 1331/1) and socket (T40055).
• Tightening specification: 25 Nm.