CC 2010 β€ , Eos 2006 β€ , Golf 2004 β€ , Golf 2009 β€ , Passat 2006 β€ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
1.2
Draining and adding coolant
Special tools and workshop
equipment required
β¦ Adapter for cooling system tester - V.A.G 1274/8-
β¦ Drip tray for workshop hoist - VAS 6208-
β¦ Spring-type clip pliers - VAS 6362-
β¦ Coolant system charge unit - VAS 6096-
β¦ Refractometer - T10007 A-
Draining
WARNING
The cooling system is under pressure when the engine is hot!
Danger of scalding by steam and hot coolant.
Cover filler cap on expansion tank with a cloth and open careβ
fully to release pressure.
β Open filler cap on expansion tank.
1. Cooling system
241
CC 2010 β€ , Eos 2006 β€ , Golf 2004 β€ , Golf 2009 β€ , Passat 2006 β€ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
β Remove noise insulation β General body repairs, exterior;
Rep. gr. 50 ; Noise insulation .
Passat, CC, Golf, Scirocco and Eos:
β Remove air hose -items 1 and 2- and seal charge air cooler
with a clean cloth.
β Place drip tray - VAS 6208- beneath engine.
β Disconnect coolant hose -1- from bottom of radiator and drain
off coolant.
β Disconnect bottom coolant hose leading to continued coolant
circulation pump - V51- -arrow- and drain off coolant.
Tiguan:
β Remove bolt -2- at bracket for coolant pump for continued cirβ
culation - V51- .
Note
The continued circulation coolant pump - V51- remains installed.
242
Rep. gr.19 - Cooling
CC 2010 β€ , Eos 2006 β€ , Golf 2004 β€ , Golf 2009 β€ , Passat 2006 β€ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
β Pull off coolant hose -1-.
β Disconnect bottom coolant hose leading to continued coolant
circulation pump - V51- -arrow- and drain off coolant.
Vehicles with auxiliary heater:
β Disconnect coolant hoses -arrows- and drain off remaining
coolant.
Filling:
Caution
Use only distilled water for mixing coolant additives. The use
of distilled water ensures optimum protection against corroβ
sion.
1. Cooling system
243
CC 2010 β€ , Eos 2006 β€ , Golf 2004 β€ , Golf 2009 β€ , Passat 2006 β€ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
Note
β¦ The water used for mixing has a major influence on the effecβ
tiveness of the coolant. Because the water quality differs from
country to country and even from region to region, the quality
of the water to be used in the cooling system has been speciβ
fied by Volkswagen. Distilled water fulfils all requirements.
Therefore, only ever use distilled water when mixing coolant
for topping up or renewing coolant.
β¦ Use only coolant additives which conform with the β Elecβ
tronic parts catalogue (ETKA) . Other coolant additives may
reduce corrosion protection substantially. The resulting damβ
age could lead to loss of coolant and subsequent severe
damage to the engine.
β¦ Mixed in the proper proportions, coolant inhibits frost and corβ
rosion damage as well as scaling. Such additives also raise
the boiling point of the coolant. For this reason, the cooling
system must be filled all-year-round with coolant additives.
β¦ Because of its high boiling point, the coolant improves engine
reliability under heavy loads, particularly in countries with tropβ
ical climates.
β¦ Use ONLY refractometer - T10007A- for determining current
anti-freeze value.
β¦ Frost protection must be guaranteed down to -25Β°C as a minβ
imum and, in countries with arctic conditions, down to approx.
-36Β°C. Increasing the frost protection is permissible only if cliβ
matic conditions require stronger frost protection. It may, howβ
ever, be increased only to a maximum of -48Β°C. Otherwise,
the cooling effect will be impaired.
β¦ Do not reduce the coolant concentration by adding water even
in warmer seasons and in warmer countries. Frost protection
must be guaranteed down to at least -25Β°C.
β¦ Read off anti-freeze figures for respective replenished coolant
additives.
β¦ The temperature read off the refractometer - T10007A- correβ
sponds the Β»ice flocculation pointΒ«. Flakes of ice may start
forming in the coolant below this temperature.
β¦ Never reuse old coolant.
β¦ Use only a water/coolant additive mixture as a slip agent for
coolant hoses.
Recommended mixture ratios:
Frost
Anti-freeze
proportion
Coolant adβ Distilled waβ
1)
1)
protection to
ditive
ter
-25 Β°C
-36 Β°C
40%
50%
3.2 l
4.0 l
4.8 l
4.0 l
1)
The quantity of coolant can vary depending on the vehicle
equipment.
244
Rep. gr.19 - Cooling
CC 2010 β€ , Eos 2006 β€ , Golf 2004 β€ , Golf 2009 β€ , Passat 2006 β€ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
β Connect bottom coolant hose -1- to radiator.
β Install air pipe.
β Connect the coolant hose to the continued circulation coolant
pump - V51- -arrow-.
Vehicles with auxiliary heater:
β Connect coolant hoses -arrows-.
β Install noise insulation β General body repairs, exterior; Rep.
gr. 50 ; Noise insulation .
All:
With cooling system charge unit - VAS 6096- :
β Screw adapter for cooling system tester - V.A.G 1274/8- onto
expansion tank.
β Fill coolant circuit using cooling system charge unit -
VAS 6096- β Operating instructions for cooling system charge
unit VAS 6096.
Without cooling system charge unit - VAS 6096- :
β Slowly fill coolant to upper marking of shaded field on expanβ
sion tank.
β Fit expansion tank cap.
β Start engine and maintain an engine speed of about 2,000 rpm
for about 3 minutes.
β Run engine until radiator fan - V7- cuts-in.
WARNING
The cooling system is under pressure when the engine is hot!
Danger of scalding by steam and hot coolant.
Cover filler cap on expansion tank with a cloth and open careβ
fully to release pressure.
1. Cooling system
245