Cylinder head, servicing: Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, 2003 Volkswagen Jetta, and 2003 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- If an exchange cylinder head is installed, all contact surfaces between bearing elements, roller rocker fingers and cam running surfaces of camshaft must be oiled before installing cylinder head cover.
NOTE:
- The plastic protectors installed to protect the open valves must only be removed immediately before installing the cylinder head.
- When replacing the cylinder head the entire coolant quantity must be replaced.
- Removing and installing intake manifold → Cylinder head cover, removing and installing ; Removing and installing cylinder head.
- Disassembling and assembling intake manifold: → 24 MULTIPORT FUEL INJECTION (MFI)
- Removing and installing cover → Cover, removing and installing .
- Checking compression pressure → Compression pressure, checking .
1 - 8 Nm
2 - Bracket
- For fuel lines
3 - Supporting frame
4 - 8 Nm
- With spacer sleeve and sealing ring
- Replace sealing ring if damaged
5 - O-ring
- Replace if damaged
- Lubricate before installing
- For ignition coils with final output stage
6 - Sealing cap
- Replace seal if damaged
7 - Boot
- Replace if damaged
8 - Cylinder head cover
- Replace if damaged
- Removing and installing → Cylinder head cover, removing and installing
9 - Lifting eye
10 - 23 Nm
11 - Camshaft roller chain
- Mark direction of rotation. before removing (installation position), Marking roller chains under Engine, disassembling and assembling
- Installing → Valve timing, adjusting
12 - Combi-valve
- Removing and installing → Components of the secondary air system, removing and installing , Removing and installing parts of the secondary air system
- Checking → Combi-valve, checking
13 - Valve 1 for camshaft adjustment N205
- For intake camshaft
- Check camshaft timing adjustment → Camshaft adjustment, checking
- Mark connector and component before disconnecting
- Checking activation: → 01 ON BOARD DIAGNOSTIC (OBD)
14 - Camshaft adjustment valve 1 (exhaust) N318
- Check camshaft timing adjustment → Camshaft adjustment, checking
- Mark connector and component before disconnecting
- Checking activation: → 01 ON BOARD DIAGNOSTIC (OBD)
15 - 60 Nm + 1 / 4 turn (90 ° ) further
- Replace
- Contact surface of sensor wheel on bolt head must be dry for assembly
- To remove and install, use a 32 mm open jaw wrench on camshaft to counter support → Camshafts, removing and installing , Removing and installing camshaft
16 - Exhaust camshaft timing adjuster
- Marking: 32A
- Turn engine over only when camshaft timing adjuster is installed
- Check camshaft timing adjustment → Camshaft adjustment, checking
- Installing → Valve timing, adjusting
17 - Slide rail
- Clipped into control housing
18 - Intake camshaft timing adjuster
- Marking: 24E
- Turn engine over only when camshaft timing adjuster is installed
- Check camshaft timing adjustment → Camshaft adjustment, checking
- Installing → Valve timing, adjusting
19 - Unions
- For air shrouding of injectors
20 - Cylinder head gasket
- Metal gasket
- Replace
- Preparing cylinder head gasket for installation Preparing cylinder head gasket for installation under Cylinder head, servicing
- After replacement replace entire coolant
21 - Cylinder head
- Check for distortion Checking cylinder head for distortion
- Removing and installing → Cylinder head, removing and installing
- After replacement replace entire coolant
22 - Tensioning element
- For ribbed belt
- Removing and installing ribbed belt → Ribbed belt, removing and installing under Ribbed belt, removing and installing
23 - Cylinder head bolt
- Replace
- Observe installation instructions and sequence when loosening and tightening → Cylinder head, removing and installing , Removing and installing cylinder head
24 - Cylinder head cover gasket
- Replace if damaged or leaking
- Observe installation position