Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 700
– Lift the clamp -1-, remove the upper coolant supports and set
them aside.
– Disconnect the connector -1- from the Oil Pressure Switch
-2-.
– Remove the bolts -arrows- and remove the toothed belt cover.
Note
The drive gear bolt has a left thread.
– Counterhold the vibration damper and remove the bolt from
the coolant pump the drive wheel -1- by loosening three turns.
Use Torque Wrench 1410 - VAG1410- and Torque Wrench
1331 Insert - Ring Wrench - 12mm - T10360- .
Note
If on vehicles with a manual transmission a starter bolt hinders
attaching the tool, remove the bolt approximately 15 mm.
– Remove the toothed belt -2-.
Installing
Install in reverse order of removal. Note the following:
– Replace the bolt for the drive wheel.
– Drive gear installation position: the collar on the drive gear
faces the transmission.
– Position the toothed belt and tighten the bolts.
– Fill with coolant. Refer to
Tightening Specifications
♦ Refer to
⇒ “2.1 Overview - Coolant Pump/Thermostat”, page 223
♦ Refer to
2.9
Engine Temperature Control Actuator -
N493- , Removing and Installing
Removing
Caution
This procedure contains mandatory replaceable parts. Refer
to component overview prior to starting procedure.
Mandatory Replacement Parts
♦ Seal - Engine Temperature Control Actuator
♦ O-rings - Engine Temperature Control Actuator
– Remove the coolant pump. Refer to
⇒ “2.7 Coolant Pump, Removing and Installing”, page 232
– Remove the Throttle Valve Control Module - GX3- . Refer to
⇒ “4.5 Throttle Valve Control Module GX3 , Removing and
– Remove the coolant pipe from the intake manifold -arrows-.
– Lift the clamp -1-, and remove the coolant hoses.
– Remove the connector -1- from the Engine Temperature Con‐
trol Actuator - N493- .
– Remove the bolts -1 to 5-.
– Remove the Engine Temperature Control Actuator - N493-
from the centering pin and disconnect it from the engine oil
cooler.
Installing
Install in reverse order of removal. Note the following:
Note
Replace the seals and O-rings.
– Coat the new O-rings -4- with coolant.
– Make sure both centering pins are installed in the cylinder
block.
– Install the connection piece -2- into the engine oil cooler -1-.
– Push the Engine Temperature Control Actuator - N493- -3-
into the connection piece and onto the centering pins in the
cylinder block.
– Tighten the bolts for the Engine Temperature Control Actuator
- N493- . Refer to
⇒ Fig. ““ Engine Temperature Control Actuator -N493- - Tight‐
ening Specifications and Sequence”“ , page 225
.
– Install the coolant pump. Refer to
⇒ “2.7 Coolant Pump, Removing and Installing”, page 232
.
Tightening Specifications
♦ Refer to
⇒ “2.1 Overview - Coolant Pump/Thermostat”, page 223
♦ Refer to
⇒ “4.1 Overview - Intake Manifold”, page 296
2.10
Engine Coolant Temperature Sensor -
G62- , Removing and Installing
Removing
• Engine is cold.
– Quickly open the coolant expansion tank cap -arrow- and re‐
lease any remaining pressure in the cooling system and then
close it again until it locks.
– Remove the air filter housing. Refer to
– Loosen the hose clamp -2-.
– Remove bolt -1-, push the left air guide pipe left.
– Disconnect the connector -1-.
Note
♦
Place a cleaning cloth underneath, to catch coolant leaking
out.
♦
To prevent coolant loss, immediately insert the new Engine
Coolant Temperature Sensor - G62- in the connection.
– Remove the bolts -2-, and remove the Engine Coolant Tem‐
perature Sensor - G62- -3-.
Installing
Install in reverse order of removal. Note the following:
Note
Replace the O-rings.
– Check the coolant level. Refer to
Tightening Specifications
♦ Refer to
⇒ “2.3 Overview - Engine Coolant Temperature Sensor”, page
♦ Refer to
⇒ “3.1 Overview - Air Filter Housing”, page 293
2.11
Engine Coolant Temperature Sensor on
Radiator Outlet - G83- , Removing and
Installing
Removing
• The engine is cold.
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