Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 698

2.3

Overview - Engine Coolant Temperature Sensor

1 - Clamp

❑ Make sure it is secure

2 - O-Ring

❑ Replace after removing

3 - Engine Coolant Tempera‐

ture Sensor on Radiator Outlet

- G83-

❑ Removing and instal‐

ling. Refer to

⇒ “2.11  Engine Coolant

Temperature Sensor on

Radiator Outlet G83 ,

Removing and Instal‐

ling”, page 239

 .

4 - Connector
5 - Engine Coolant Tempera‐

ture Sensor - G62-

❑ On transmission side of

the cylinder head

❑ Removing and instal‐

ling. Refer to

⇒ “2.10  Engine Coolant

Temperature Sensor

G62 , Removing and In‐

stalling”, page 238

 .

6 - O-Ring

❑ Replace after removing
❑ Coat with coolant

7 - O-Ring

❑ Replace after removing
❑ Coat with coolant

8 - Bolt

❑ 4 Nm + 45° turn
❑ Replace after removing

2.4

After-Run Coolant Pump - V51- , Re‐

moving and Installing

Special tools and workshop equipment required
♦ Hose Clamps - Up To 25mm - 3094-
♦ Hose Clip Pliers - VAS6340-
♦ Hose Clip Pliers - VAS6362-

Removing

Note

During installation, all heat insulation sleeves must be installed at

the same location.

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.

– Remove the cap -arrow- from the coolant expansion tank.
– Remove the noise insulation. Refer to ⇒  Body Exterior; Rep.

Gr.  66 ; Noise Insulation; Overview - Noise Insulation .

– Free up the wiring harness -1 and 2- from the air guide pipe.
– Loosen the screw-type clamp -3-.

– Remove the bolts -arrows-.

– Loosen the hose clamp -arrow- and remove the charge air

hose -A- with the air guide pipe downward.

– Open the heat protection sleeve -3-.
– Disconnect the connector -1-.
– Clamp the coolant hoses on the After-Run Coolant Pump -

V51- with the Hose Clamps - Up To 25mm - 3094- .

Note

Place a cleaning cloth underneath, to catch coolant leaking out.

– Loosen the clamps -arrows- and remove the coolant hoses.
– Remove the bolt -2- and the After-Run Coolant Pump - V51- .
Installing
Install in reverse order of removal. Note the following:

Note

Secure hose connections with standard production clamps. Refer

to the Parts Catalog.

– Check the coolant level. Refer to 

⇒ page 222

 .

Tightening Specifications
♦ Refer to

⇒ “2.2 Overview - Electric Coolant Pump”, page 226

 .

♦ Refer to 

⇒ “3.1 Overview - Air Filter Housing”, page 293

 .

♦ Refer to ⇒  Body Exterior; Rep. Gr.  66 ; Noise Insulation;

Overview - Noise Insulation .

2.5

Coolant Shut-Off Valve - N82- , Remov‐

ing and Installing

Special tools and workshop equipment required
♦ Hose Clamps - Up To 25mm - 3094-
♦ Hose Clip Pliers - VAS6362-
Removing
– Remove the air filter housing. Refer to

⇒ “3.2 Air Filter Housing, Removing and Installing”,

page 294

 .

– Loosen the hose clamp -2-.
– Remove bolt -1-, push the left air guide pipe left.

– Disconnect the connector -2-.
– Clamp the coolant hoses on Coolant Shut-Off Valve - N82-

with the Hose Clamps - Up To 25mm - 3094- .

Note

Place a cleaning cloth underneath, to catch coolant leaking out.

– Loosen the hose clamps -1- and remove the coolant hoses.
– Remove the bolts -arrows-, and remove the Coolant Shut-Off

Valve - N82- .

Installing
Install in reverse order of removal. Note the following:

Note

Secure hose connections with standard production clamps. Refer

to the Parts Catalog.

– Check the coolant level. Refer to 

⇒ page 222

 .

Tightening Specifications
♦ Refer to

⇒ “2.2 Overview - Electric Coolant Pump”, page 226

 .

♦ Refer to 

⇒ “3.1 Overview - Air Filter Housing”, page 293

 .

2.6

Transmission Coolant Valve - N488- ,

Removing and Installing

Special tools and workshop equipment required
♦ Hose Clamps - Up To 25mm - 3094-
♦ Hose Clip Pliers - VAS6362-
Vehicles with a DSG

®

 Transmission

Removing
– Remove the noise insulation. Refer to ⇒  Body Exterior; Rep.

Gr.  66 ; Noise Insulation; Overview - Noise Insulation .

– Remove the air filter housing. Refer to

⇒ “3.2 Air Filter Housing, Removing and Installing”,

page 294

 .

– Free up the wiring harness -1 and 2- from the air guide pipe.
– Loosen the screw-type clamp -3-.
– Remove the bolts -arrows-.