Volkswagen Golf / Golf Plus. Manual - part 318

 

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Volkswagen Golf / Golf Plus. Manual - part 318

 

 

Special tools and workshop

equipment required
♦ Cooling system tester -

V.A.G 1274-

♦ Adapter for cooling system

tester -V.A.G 1274/8-

♦ Adapter for cooling system

tester -V.A.G 1274/9-

Test prerequisite
• Engine at operating temperature.
Test sequence:

WARNING

Hot steam may escape when expansion tank is opened. Place

rag over cap and open with caution.

– Open cap on coolant expansion tank.

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

110

     Rep. Gr.19 - Cooling

 

– Use hand pump on tester to create a pressure of about 1.0 bar.
If pressure drops:
– Find leaks and rectify.
Checking pressure relief valve in filler cap

– Attach cooling system tester -V.A.G 1274- with cooling system

tester adapter -V.A.G 1274/9- to cap.

– Use hand pump on cooling system tester to create a pressure

of max. 1.6 bar.

The pressure relief valve must not open.
If the pressure relief valve opens prematurely:
– Renew sealing cap.
– Increase pressure to over 1.6 bar.
The pressure relief valve must open.
If the pressure relief valve does not open:
– Renew sealing cap.

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

1. Parts of cooling system    

111

 

Special tools and workshop

equipment required
♦ Refractometer -T10007-
♦ Hose clamps up to

Ø 25 mm -3094-

♦ Cooling system tester -

V.A.G 1274-

♦ Adapter for cooling system

tester -V.A.G 1274/8-

♦ Spring-type clip pliers -VAS

5024A-

♦ Drip tray -VAS 6208-

Special tools and workshop equipment required
♦ Torque wrench -V.A.G 1331-

Not illustrated:
♦ Expansion tank -1K0 121 407 A- or -6Q0 121 407 A- or -1J0

121 407 B-

♦ Plug -191 211 343-

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

112

     Rep. Gr.19 - Cooling

 

insulation .

– Clamp supply line and return line off engine oil cooler using

hose clips to ∅ 25 mm -3094- .

– Loosen spring type clips -arrows- using spring type clip pliers

-VAS 5024A- .

Note

Collect escaping coolant with drip tray -VAS 6208- .

– Pull coolant hoses off oil cooler.

– Push sealing cap -5- to rear connection of oil cooler -4-.
– Secure sealing plug -2- to breather connection of expansion

tank -1-.

– Secure coolant hose -3- to oil cooler and expansion tank.
– Fill expansion tank up to “Max” marking.
– Attach cooling system tester -V.A.G 1274- with cooling system

tester adapter -V.A.G 1274/8- to expansion tank.

Use hand pump on tester to create a pressure of about 1.6 bar.
Watch pressure drop on pressure gauge. A pressure drop within

10 minutes is not permitted.
If pressure drops:
– Renew oil cooler.
Assembly is carried out in the reverse order, note the following:
– Check coolant level, if necessary replenish coolant.

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

1. Parts of cooling system    

113

 

 

 

 

 

 

 

 

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