Volkswagen Golf / Golf GTI / Jetta. Manual — part 1230

- Install engine cover and clip in position.

Cooling system anti-freeze protection and
coolant level, checking

Warning!

All new engines are filled with coolant additive G 12
Plus conforming to TL "VW 774 F" (color purple). G 12
is compatible with previous coolant additives G 11 and
G 12 (red)! Make sure that only G 12 is refilled. due to
its positive characteristics.

G 12 purple (conforming to TL "VW 774 F" ) is
compatible with previous coolant additives G 11 and G
12 red!

Note:

G 12 Plus is suitable as a filled-for-life filling for cast iron
and all-aluminum engines and gives optimum protection
against freeze. corrosion damage. scaling and over-
heating.

G 12 Plus raises boiling point to 275 F (135 C) and
provides for better heat disipation

coolant concentration must be at least 40 % (freeze
protection to -13 F ( -25 C)) and should never exceed 60
% (freeze protection to -40 F (- 40 C) otherwise freeze
protection will be reduced and cooling effect will also be
reduced.

Freeze protection must be ensured to approximately -13 F
( -25 C)

Checking freeze protection and adding coolant
additive if necessary

Description of work (part 2 of 2)

13/2/2005

Special tools, testers and auxiliary items required

Refractometer T10007

Note:

Read bright/dark boundary to obtain an accurate reading
for following tests. Place a drop of water on glass to
improve readability of bright/dark boundary. Bright/dark
boundary can be clearly recognized on "WATERLINE" .

- Check concentration of coolant additive using
Refractometer T10007 (operating instructions).

Scale - 1 - of refractometer refers to coolant additives -G
12- . -G 12 Plus- and -G 11-.

Scale - 2 - refers only to coolant additive G 13. (previously
L80)

- If freeze protection ratio is too low. drain listed amount
and replace it with coolant additive G 12 conforming to TL
"VW 774 F" .

Checking coolant level and adding coolant if
necessary

- Check coolant level in coolant resevoir with engine cold.

Description of work (part 2 of 2)

13/2/2005

Delivery inspection: Coolant level at MAX. marking.

Inspection service: Coolant level between MIN. and MAX.
marking.

- If coolant is too low. add required amount according to
mixture ratio.

Note:

If fluid losses are greater than can be reasonably expected.
determine cause and repair (repair measure)

Mixture ratio:

Freeze protection to

Coolant additive G 12 /
TL

VW774D

Water

- 25 C (- 13F)

approx. 40 %

approx. 60 %

- 35 C (- 31F)

approx. 50 %

approx. 50 %

- 40 C (- 40F)

approx. 60 %

approx. 40 %

Note:

Coolant additve G 12 conforming to TL "VW 774 F"
prevents freeze and corrosion damage. scaling. and raises
boiling point. For these reasons. cooling system must be
filled with radiator freeze and corrosion protection fluid all
year round.

Coolant concentration must not be reduced by adding
water. even during warmer season. Coolant additive
portion must be at least 40%.

Freeze protection table

Freeze protection to C (F)

Difference amount in liters

Actual value

Specified value

4-cyl.

6-cyl.

Description of work (part 2 of 2)

13/2/2005

engine

engine

0

-25 (-13F)

3.5

5.0

-35 (-31F)

4.0

6.0

-5

-25 (-13F)

3.0

4.5

-35 (-31F)

3.5

5.5

-10

-25 (-13F)

2.0

3.5

-35 (-31F)

3.0

4.5

-15

-25 (-13F)

1.5

2.5

-35 (-31F)

2.0

3.5

-20

-25 (-13F)

1.0

1.5

-35 (-31F)

1.5

2.5

-25

-35 (-31F)

1.0

1.5

-30

-35 (-31F)

0.5

1.0

-35

-40 (-40F)

0.5

0.5

Note:

Observe waste disposal regulations!

- Check coolant additive concentration after test drive
again.

Dust and pollen filter, replace filter element

Filter is located on right side in plenum chamber under
cover.

Perform the following work sequence:

Removing:

- Remove upward the rubber seal - 1 - on the right of the
plenum chamber cover to center of the vehicle.

- Remove four screws - 2 - and remove the plenum
chamber cover.

Description of work (part 2 of 2)

13/2/2005