Volkswagen Golf Variant / Jetta. Manual - part 408

 

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Volkswagen Golf Variant / Jetta. Manual - part 408

 

 

Gr.  50 ; Noise Insulation .

– Clamp off the coolant hoses from the oil cooler using Hose

Clamps - Up To 25mm - 3094- .

– Loosen the spring clamps -arrows- using the Hose Clip Pliers

- VAS6362- .

Note

Catch leaking coolant with the Drip Tray - VAS6208- .

– Disconnect the coolant hoses from the oil cooler.
– Mount the Closure Cap -5- on the rear connection on the oil

cooler -4-.

– Attach the Plug -2- to the coolant expansion tank vent con‐

nection -1-.

– Secure the coolant hose -3- on the oil cooler and on the cool‐

ant expansion tank.

– Slowly fill the coolant up to the upper marking in the hatched

area on the expansion tank.

– Position the Cooling System Tester - VAG1274B- with the

Cooling System Tester - Adapter - VAG1274/8- on the coolant

expansion tank.

– Generate a pressure of approximately 1.6 bar (23.2 psi) using

the hand pump on the Cooling System Tester - Adapter -

VAG1274/8- .

– Watch the pressure decrease on the pressure gauge.
• The pressure must not fall within 10 minutes.
If the pressure drops:
– Replace the oil cooler. Refer to

⇒ “4.1 Overview - Oil Filter Bracket and Oil Cooler”,

page 177

 , Overview - Oil Filter Bracket and Oil Cooler

Install in reverse order of removal. Note the following:
– Check the coolant level and fill if necessary. Refer to

⇒ “1.9 Coolant, Draining and Filling”, page 209

 .

1. Cooling System Components    

215

Engine Preheater

⇒ “1.12.1 Overview - Engine Preheater”, page 216

 .

⇒ “1.12.2 Engine Preheater, Removing and Installing”,

page 217

 .

1.12.1

Overview - Engine Preheater

1 - Coolant Pipe for Engine

Preheater

❑ Secured in the upper

area on the bracket for

the wiring harness and

coolant pipe -item 13-

⇒ Item 13 (page 216)

❑ Secured in the lower

area on the charge air

pipe with the engine pre‐

heater bracket

-item 15-

⇒ Item 15 (page 291)

2 - Coolant Hose from the Cyl‐

inder Block Connection to the

Transmission Fluid Cooler
3 - Coolant Hose from the

Transmission Fluid Cooler to

the Engine Oil Cooler
4 - Coolant Hose from the En‐

gine Preheater Coolant Pipe to

the Engine Preheater
5 - Locking Mechanism
6 - External Power Supply

Connecting Cable
7 - Left Air Grille

– Air Grille, Removing and

installing. Refer to ⇒ 

63 ; Front Bumper Cov‐

er; Front Bumper Cover

Attachments .

8 - Bracket
9 - Engine Preheater

❑ Removing and installing. Refer to 

⇒ “1.12.2 Engine Preheater, Removing and Installing”, page 217

 .

10 - Engine Preheater Clamp

❑ Secured on the bracket

11 - Bolt

❑ 10 Nm

12 - Engine Preheater Bracket
13 - Bracket for Wiring Harness and Coolant Pipe

❑ Secured on the oil filter bracket -item 16- 

⇒ Item 16 (page 179)

14 - Coolant Hose from the Engine Oil Cooler to the Engine Preheater Coolant Pipe
15 - Coolant Hose from the Engine Preheater to the Coolant Hose on the Cylinder Block

216

Engine Preheater, Removing and Instal‐

ling

Special tools and workshop equipment required
♦ Refractometer - T10007A-
♦ Shop Crane - Drip Tray - VAS6208-
♦ Torque Wrench 1331 5-50Nm - VAG1331-
♦ Hose Clip Pliers - VAS6362-
Removing:
– Remove the noise insulation. Refer to ⇒  Body Exterior; Rep.

Gr.  50 ; Noise Insulation .

– Drain the coolant. Refer to

⇒ “1.9 Coolant, Draining and Filling”, page 209

 .

– Loosen the coolant hose clamp and remove the coolant hose

from the connection -arrow A-.

– Unclip the retainer and disconnect the Engine Preheater con‐

nector -arrow D-.

– Loosen the coolant hose clamp and remove the coolant hose

from the connection -arrow E-.

– Release the clamp -arrow B- and remove the Engine Preheat‐

er -arrow C- downward.

Installing:
Install in reverse order of removal.
– Fill with coolant. Refer to

⇒ “1.9 Coolant, Draining and Filling”, page 209

 .

50 ; Noise Insulation .

1. Cooling System Components    

217

Special Tools

Special tools and workshop

equipment required
♦ Refractometer - T10007A-
♦ Shop Crane - Drip Tray -

VAS6208-

♦ Hose Clip Pliers -

VAS6362-

♦ Cooling System Charge Kit

- VAS6096-

♦ Cooling System Tester -

Adapter - VAG1274/8-

218

 

 

 

 

 

 

 

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