Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 668

Installing
– Replace seals.
– Install the cover on the cylinder head the tighten the bolts hand

tight. While doing so make sure that the seal lays correctly on

the cylinder head.

– Tighten the bolts -1 through 6- in the sequence shown. Refer

to

⇒ Fig. ““Timing Chain Guard Upper Cover - Tightening Se‐

quence”“ , page 105

 .

– Install the Camshaft Adjustment Valve 1 - N205- and Exhaust

Camshaft Adjustment Valve 1 - N318- . Refer to

⇒ “4.4  Camshaft Adjustment Valve 1 N205 and Exhaust Cam‐

shaft Adjustment Valve 1 N318 , Removing and Installing”,

page 161

 .

– Install the engine cover. Refer to

⇒ “3.1 Engine Cover, Removing and Installing”, page 38

 .

Tightening Specifications
♦ Refer to 

⇒ “2.1 Overview - Timing Chain Cover”, page 104

2.2.2

Lower Timing Chain Cover, Removing

and Installing

Special tools and workshop equipment required
♦ Vibration Damper Assembly Tool - T10531-

Caution

This procedure contains mandatory replaceable parts. Refer

to component overview prior to starting procedure.

Mandatory Replacement Parts
♦ Cover - Lower Timing Chain
♦ Bolts - Lower Timing Chain Cover
♦ O-ring - Oil Dipstick Tube

Note

Dependent on the sealing compound sealant, bends the cover

when removing. Because of this, always replace the cover.

Removing
– Remove right front wheel housing liner. Refer to ⇒  Body Ex‐

terior; Rep. Gr.  66 ; Wheel Housing Liner; Front Wheel Hous‐

ing Liner, Removing and Installing .

– Remove the engine support. Refer to

⇒ “1.6 Engine Support, Removing and Installing”, page 55

 .

– Remove the vibration damper. Refer to

⇒ “1.4 Vibration Damper, Removing and Installing”, page 47

 .

– Drain the engine oil. Refer to ⇒ Maintenance ; Booklet  36.1 ;

Procedure Descriptions; Engine Oil, Draining, Replacing Oil

Filter, and Filling .

– Remove the Oil Pressure Regulation Valve - N428- . Refer to

⇒ “4.8  Oil Pressure Regulation Valve N428 , Removing and

Installing”, page 206

 .

– Remove the ribbed belt tensioner. Refer to

⇒ “1.3 Ribbed Belt Tensioner, Removing and Installing”, page

47

 .

– Free up the clip -2- for the electrical wiring harness.
– Remove the screw -1-.
– Unclip the guide tube from the timing chain upper cover in di‐

rection of -arrow-.

– Remove the guide tube from the timing chain guard.

– Remove the bolts -1 through 15-.

Note

There may be only eight bolts installed, depending on the version.

– Pry off the lower timing chain cover.
Installing

Note

♦

Be sure to check the expiration date of the silicone sealant.

♦

Refer to the Parts Catalog for the silicone grease.

♦

The cover must be installed within five minutes after applying

the silicone sealant.

♦

Replace the bolts that were tightened with an additional turn.

♦

Replace sealing ring and O-ring.

♦

Risk of contaminating the lubricating system. Cover open

parts of engine.

– Remove any sealant residue on the cylinder block using a flat

blade scraper.

– Clean any oil or grease off the sealing surfaces.

– Make sure both alignment bushings for centering the cover

-arrows- are present.

– Cut the tube nozzle at the front marking (nozzle diameter: ap‐

proximately 3 mm).

Cover with 15 bolts
– Apply the Silicone Sealant - D 174 003 A2- to the clean sealing

surface -arrow 1- and on the edges -arrows 2- of the new cover

as shown in the illustration.

♦ Sealant bead thickness: 2 to 3 mm.

– Immediately attach the cover and tighten the bolts.

Note

Tighten the bolts -3 and 6- with an additional turn after installing

the vibration damper. The bolts must be removed again to install

the vibration damper.

– Tighten the bolts -1 through 15- in the sequence shown. Refer

to 

⇒ “2.1 Overview - Timing Chain Cover”, page 104

 .

Cover with 8 Bolts
– Apply the Silicone Sealant - D 174 003 A2- to the clean sealing

surface -arrow 1- and on the edges -arrows 2- of the new cover

as shown in the illustration.

♦ Sealant bead thickness: 2 to 3 mm.

Note

♦

The cover must be installed within five minutes after applica‐

tion of silicone sealant.

♦

The sealant bead may not be thicker than specified, otherwise

excess sealant could enter the oil pan and clog the oil intake

pipe screen.