Volkswagen Golf / Golf Plus. Manual - part 190

 

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Volkswagen Golf / Golf Plus. Manual - part 190

 

 

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♦ Tensioning lever -3297-

– Loosen securing bolts -1 + 2-.
3 - Tensioning arm
4 - Alternator

– Fit tensioning lever, secure with pin -arrow- and swing alter‐

nator downwards (use torque wrench as drive for 3297).

– Press alternator with tensioning lever to stop of tensioning arm

at least three times, to ensure optimum ease of movement.

– First tighten lower and then upper alternator bolt to 25 Nm.

4.21

Poly V-belt: Check condition

Carry out the following procedure:
– Crank engine at vibration damper on belt pulley using a socket.

Maintenance - Edition 11.2009

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    4. Descriptions of work

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Check poly V-belt/s -1- for:
♦ Substructure cracks (cracks, core ruptures, cross sectional

breaks)

♦ Layer separation (top layer, cord strands)
♦ Base break-up
♦ Fraying of cord strands
♦ Flank wear (material wear, frayed flanks, brittle flanks -glassy

flanks-, surface cracks)

♦ Traces of oil and grease

Note

If faults are found it is absolutely necessary to renew the poly V-

belt/s. This will avoid possible breakdowns or operating problems.

Renewing the poly V-belt is a repair measure.

4.22

Calibrating compass (for North Ameri‐

can region)

Note

The time needed for the calibrating process should be max.

30 seconds.

The vehicle must be stationary during the calibrating process.

– Switch on ignition.
– Wait 10 seconds.
– Switch on rear window heating.
– Wait 10 seconds.
– Switch off rear window heating.
– Switch off ignition.

Maintenance - Edition 11.2009

4. Descriptions of work    

71

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4.23

Cooling system: Check frost protection

and coolant level

Note

From model year 2008 all engines are filled with coolant ad‐

ditive G12 Plus Plus (purple). Because of its positive charac‐

teristics, ensure that only G12 Plus Plus is used when

replenishing. G12 Plus must not be replenished because the

positive characteristics of G12 Plus Plus are then not effective.

Up to model year 2007 all engines are filled with coolant ad‐

ditive G12 Plus according to TL VW 774 F (purple). Because

of its positive characteristics, ensure that only G12 Plus or G12

Plus Plus is used when replenishing.

Coolant additive G12 Plus Plus protects the complete cooling

system against corrosion and reduces the formation of sludge

and corrosion.

G12 Plus Plus is suitable as a filled-for-life filling for cast iron

and all-aluminium engines and gives optimum protection

against frost, corrosion damage, scaling and overheating.

G12 Plus Plus raises the boiling point to 135 °C and ensures

better heat dissipation.

The coolant concentration must be at least 40 % (frost pro‐

tection to -25 °C) and should never exceed 60 % (frost pro‐

tection to -40 °C). Otherwise both frost protection and cooling

efficiency will be reduced.

Frost protection must be guaranteed to approx. -25 °C.

4.23.1

Checking frost protection, replenish

coolant additive if necessary

Special tools and workshop equipment required
♦ Refractometer -T10007-

Note

Read precise value for the following tests at bright/dark boundary.

Using a pipette, place a drop of water on the glass to improve the

readability of the bright/dark boundary. The bright/dark boundary

can be clearly recognised on the “WATERLINE”.

– Check concentration of coolant additive using refractometer -

T10007- (refer to operating instructions).

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    4. Descriptions of work

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The scale -1- of the refractometer is calibrated for coolant addi‐

tives G12; G12 Plus, G12 Plus Plus and G11.
The scale -2- is only calibrated for coolant additive G13. (originally

L80)

Note

Frost protection must be guaranteed to approx. -25 °C.

If for climatic reasons a greater frost protection is required, the

amount of G12 Plus Plus can be increased, but only up to 60

% (frost protection to about -40 °C), as otherwise frost protec‐

tion is reduced again and cooling effectiveness is also re‐

duced.

– If frost protection is insufficient, drain required quantity shown

in frost protection table and add coolant additive G12 Plus

Plus.

Note

Observe disposal regulations!

Frost protection to °C

Quantity to drain (in litres)

Actual value

Specified value

4-cylinder engines

0

-25

3.5

 

-35

4.0

-5

-25

3.0

 

-35

3.5

-10

-25

2.0

 

-35

3.0

-15

-25

1.5

 

-35

2.0

-20

-25

1.0

 

-35

1.5

-25

-35

1.0

-30

-35

0.5

-35

-40

0.5

– Check coolant additive concentration after road test again.

4.23.2

Checking coolant level, replenish cool‐

ant if necessary

– Check coolant level in expansion tank with engine cold.

Maintenance - Edition 11.2009

4. Descriptions of work    

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