Removing and installing cylinder head for engine codes AQP and AUE — VW

The following description deals with the Golf 1998 ä, Bora 1999 ä. Therefore differences must be considered, if necessary.

Checking compression pressures

=> Page
15-44.

Notes:

If you install an exchange cylinder head, all contact surfaces between bearing elements, roller rocker fingers and cam running surfaces of camshaft must be oiled before installing.

The plastic protectors fitted to protect the open valves must only be removed immediately before fitting the cylinder head.
When replacing the cylinder head the complete coolant must be renewed.
To remove and install intake manifold => Page
15-36
, Removing and installing cylinder head cover.
To dismantle and assemble intake manifold:

=> Repair group 24; Servicing injection system;Dismantling and assembling intake manifold
6 cyl. Injection engine, Mechanics
Servicing injection system
Dismantling and assembling intake manifold

Retaining clip
Bracket
For fuel pipes

10 Nm
10 Nm
With spacer sleeve and seal
Replace seal if damaged

Cylinder head cover
Removing and installing
=> Page
15-36
Renew if damaged

Cap
Renew seal if damaged

O-ring
Renew if damaged or leaking
Oil before assembling

Connector
Black, 2-pin
With camshaft adjustment valve (N205)

Cylinder head cover gasket
Renew if damaged or leaking
Note fitting position

Sprocket
For camshaft roller chain item (12)
Contact surfaces of sprocket must be dry when installed
Installing => Page
15-26
, Adjusting valve timing

60 Nm + 1/4 turn (90 °) further
Renew
Contact surfaces of sprocket must be dry when installed
To remove and install, counter-hold with 32 mm AF open jaw spanner on camshaft
=> Page
15-13
, Removing and installing camshafts

Camshaft roller chain
Mark D.O.R. before removing (installation position)
=> Page
13-13
Fig.
1
Installing => Page
15-26
, Adjusting valve timing

Guide rail
For camshaft roller chain item (12)

23 Nm
For guide rail item (13)

Seal
Renew if damaged or leaking

Chain tensioner, 40 Nm
For camshaft roller chain item (12)
Only rotate engine when chain tensioner is installed

O-ring
For oil channel seal
Renew
Oil before assembling

Bracket
10 Nm
First tighten bolts M8 item (21)

Ignition transformer (N152)
Checking:

=> Repair Group 01; Fault memory; Interrogating and erasing fault memory
6 cyl. Injection engine, Mechanics
Fault memory
Interrogating and erasing fault memory

25 Nm
Cover
Can be removed and installed with cylinder head fitted
Coat sealing surfaces with
AMV 188 001 02
Prepare cylinder head gasket for assembly
=> Page
15-11
, Fig.
2

Seal
Renew

Thermostat housing
Dismantling and assembling => Page
19-26
Coolant hose connection diagram => Page
19-15

Lifting eye
25 Nm
Cylinder head gasket
Metal gasket
Prepare cylinder head gasket for assembly
=> Page
15-11
, Fig.
2
Renew
If replaced renew the complete coolant

Cylinder head
Check for distortion => Fig.
1
Removing and installing
=> Page
15-13
If replaced renew the complete coolant

Tensioning element
For ribbed belt
Removing and installing ribbed belt => Page
13-21

Cylinder head bolt
Renew
Note installation instructions and sequence when loosening and tightening
=> Page
15-13

Fig. 1
Installing cover seal

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

3378 Fitting sleeve
3253/6 From assembly device 3253

Installing

Do not lubricate seal.
Install seal with fitting sleeve 3378 in cover -1- and pull in with fitting sleeve 3253/6 from assembly device 3253.

Fig.2
Preparing cylinder head cover for assembly

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

AMV 174 004 01 Sealant
AMV 188 001 02 Sealant

Work sequence

Remove old sealant from 3 mm holes in the cylinder head gasket -arrows-.
Fill 3 mm holes in cylinder head gasket with sealant AMV 174 004 01 and coat sealing surface on cover part and sealing flange with sealant AMV 188 001 02.
Install cover immediately!

Note:

With the cylinder head installed the holes are only half visible.