Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 689
2
Engine Oil Cooler
⇒ “2.1 Overview - Engine Oil Cooler”, page 192
⇒ “2.2 Engine Oil Cooler, Removing and Installing”, page 192
⇒ “2.3 Mechanical Switch Valve, Removing and Installing”, page
2.1
Overview - Engine Oil Cooler
1 - Auxiliary Components
Bracket
❑ Removing and instal‐
ling. Refer to
2 - Seal
❑ Replace after removing
3 - O-Rings
❑ Replace after removing
❑ Coat with engine oil
4 - Mechanical Switch Valve
❑ Replacing. Refer to
.
5 - Engine Oil Cooler
❑ See note. Refer to
❑ Removing and instal‐
ling. Refer to
6 - Seal
❑ Replace after removing
❑ Coat with coolant
7 - Connection
8 - Bolt
❑ 8 Nm + 45° turn
❑ Replace after removing
2.2
Engine Oil Cooler, Removing and Instal‐
ling
Special tools and workshop equipment required
♦ Shop Crane - Drip Tray - VAS6208-
Caution
This procedure contains mandatory replaceable parts. Refer
to component overview prior to starting procedure.
Mandatory Replacement Parts
♦ Seal - Engine Oil Cooler
Removing
CAUTION
The coolant system is under pressure when the engine is warm.
Risk of scalding due to hot steam and hot coolant.
Possibility of burning or scalding the skin and other parts of the
body.
– Wear safety gloves.
– Wear protective eyewear.
– Reduce the pressure: cover the coolant reservoir cap with a
cloth and carefully open.
– Drain the coolant. Refer to
⇒ “1.3 Coolant, Draining and Filling”, page 217
– Remove the auxiliary components bracket. Refer to
⇒ “1.5 Auxiliary Components Bracket, Removing and Instal‐
.
– Remove the bolts -4 and 5- and remove the engine oil cooler
-3- together with the seal -2-.
Installing
Install in reverse order of removal. Note the following:
Note
♦
Always replace gaskets and seals.
♦
Secure hose connections with standard production clamps.
Refer to the Parts Catalog.
– Install the engine oil cooler -3- with a new seal -2-.
– Install the accessory assembly bracket. Refer to
⇒ “1.5 Auxiliary Components Bracket, Removing and Instal‐
.
– Fill with coolant. Refer to
.
– Fill with engine oil and then check the level. Refer to ⇒ Main‐
tenance ; Booklet 36.1 ; Procedure Descriptions; Engine Oil,
Draining, Replacing Oil Filter, and Filling .
Tightening Specifications
♦ Refer to
⇒ “2.1 Overview - Engine Oil Cooler”, page 192
.
2.3
Mechanical Switch Valve, Removing
and Installing
Removing
Caution
This procedure contains mandatory replaceable parts. Refer
to component overview prior to starting procedure.
Mandatory Replacement Parts
♦ O-rings - Mechanical Switch Valve
– Remove the oil cooler. Refer to
⇒ “2.2 Engine Oil Cooler, Removing and Installing”,
– Remove the mechanical switch valve -1- from the auxiliary
components bracket in direction of -arrow-.
Installing
Install in reverse order of removal. Note the following:
Note
♦
Always replace gaskets O-rings and seals.
♦
Secure hose connections with standard production clamps.
Refer to the Parts Catalog.
– Coat the mechanical switch valve O-rings with engine oil and
install the switch valve.
– Install the engine oil cooler. Refer to
3
Crankcase Housing Ventilation
⇒ “3.1 Overview - Crankcase Ventilation”, page 195
⇒ “3.2 Oil Separator, Removing and Installing”, page 196
3.1
Overview - Crankcase Ventilation
1 - Cylinder Head Cover
2 - Seal
❑ Replace after removing
3 - Hose
❑ To EVAP Canister
Purge Regulator Valve
1 - N80-
4 - Oil Separator
❑ Removing and instal‐
ling. Refer to
.
5 - Seal
❑ Replace after removing
6 - Hose
❑ For the crankcase ven‐
tilation
❑ To turbocharger
7 - Bolt
❑ 4 Nm
❑ Self-tapping
❑ Position the bolt by hand
and tighten it until it finds
the old threads. Then
tighten the bolt to the
specification.
8 - Seal
❑ Replace after removing
9 - Bolt
❑ Self-tapping
❑ Position the bolt by hand and tighten it until it finds the old threads. Then tighten the bolt to the specifi‐
cation.
❑ Tightening specification and sequence. Refer to
⇒ Fig. ““Oil Separator - Tightening Sequence”“ , page 196
.
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