Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
19 – Cooling
1
Cooling system/coolant
⇒ a1.2 nd adding coolant”, page 278
⇒ c1.3 ooling system for leaks”, page 287
⇒ c1.4.1 ooling system”, page 291
⇒ c1.4.2 ooling system, quick reference guide”, page 313
1.1
Connection diagram - coolant hoses
⇒ w1.1.2 ith dual clutch gearbox or automatic gearbox”, page
269
⇒ w1.1.3 ith dual clutch gearbox, engine code CHHA”, page
271
⇒ w1.1.4 ith dual clutch gearbox and auxiliary radiator on right
side”, page 273
⇒ w1.1.5 ith dual clutch gearbox and auxiliary radiator on right
and left sides”, page 275
1.1.1
Vehicles with manual gearbox
Note
♦ Blue = large coolant circuit.
♦ Red = small coolant circuit.
♦ Brown = heater circuit.
♦ Yellow = gear oil cooling circuit.
♦ The arrows point in the direction of coolant flow.
268
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Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1 - Radiator for engine cool‐
ant
2 - Radiator outlet coolant
temperature sender -G83-
3 - Actuator for engine tem‐
perature regulation -N493-
4 - Cylinder head/cylinder
block
5 - Restrictor
6 - Auxiliary heater
❑ Equipment version
7 - Coolant expansion tank
8 - Cap for coolant expansion
tank
❑ Check pressure relief
valve ⇒ page 291
9 - Non-return valve
10 - Exhaust manifold
❑ Integrated in cylinder
head
11 - Turbocharger
12 - Heat exchanger for heat‐
er
13 - Restrictor
14 - Non-return valve
15 - Auxiliary pump for heat‐
ing -V488-
16 - Radiator outlet coolant -
G62-
17 - Coolant shut-off valve -N82-
18 - Restrictor
19 - Coolant pump
20 - Non-return valve
1.1.2
Vehicles with dual clutch gearbox or
automatic gearbox
Note
♦ Blue = large coolant circuit.
♦ Red = small coolant circuit.
♦ Brown = heater circuit.
♦ Yellow = gear oil cooling circuit.
♦ The arrows point in the direction of coolant flow.
1. Cooling system/coolant
269
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1 - Radiator for engine cool‐
ant
2 - Radiator outlet coolant
temperature sender -G83-
3 - Actuator for engine tem‐
perature regulation -N493-
4 - Cylinder head/cylinder
block
5 - Restrictor
6 - Auxiliary heater
❑ Equipment version
7 - Coolant expansion tank
8 - Cap for coolant expansion
tank
❑ Check pressure relief
valve ⇒ page 291
9 - Non-return valve
10 - Exhaust manifold
❑ Integrated in cylinder
head
11 - Turbocharger
12 - Heat exchanger for heat‐
er
13 - Restrictor
14 - Non-return valve
15 - Auxiliary pump for heat‐
ing -V488-
16 - Radiator outlet coolant -
G62-
17 - Coolant shut-off valve -N82-
❑ Not applicable for automatic gearbox
18 - Restrictor
19 - Coolant pump
20 - Coolant valve for gearbox -N488-
❑ Installed behind gear oil cooler in the case of automatic gearbox
21 - Non-return valve
22 - Gear oil cooler
270
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1.1.3
Vehicles with dual clutch gearbox, en‐
gine code CHHA
Note
♦ Blue = large coolant circuit.
♦ Red = small coolant circuit.
♦ Brown = heater circuit.
♦ Yellow = gear oil cooling circuit.
♦ The arrows point in the direction of coolant flow.
1. Cooling system/coolant
271
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1 - Radiator for engine cool‐
ant
2 - Radiator outlet coolant
temperature sender -G83-
3 - Actuator for engine tem‐
perature regulation -N493-
4 - Cylinder head/cylinder
block
5 - Restrictor
6 - Auxiliary heater
❑ Equipment version
7 - Coolant expansion tank
8 - Cap for coolant expansion
tank
❑ Check pressure relief
valve ⇒ page 291
9 - Non-return valve
10 - Exhaust manifold
❑ Integrated in cylinder
head
11 - Turbocharger
12 - Heat exchanger for heat‐
er
13 - Restrictor
14 - Non-return valve
15 - Auxiliary pump for heat‐
ing -V488-
16 - Radiator outlet coolant -
G62-
17 - Coolant shut-off valve -N82-
18 - Restrictor
19 - Circulation pump -V55-
20 - Coolant pump
21 - Coolant valve for gearbox -N488-
22 - Non-return valve
23 - Gear oil cooler
272
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1.1.4
Vehicles with dual clutch gearbox and
auxiliary radiator on right side
Note
♦ Blue = large coolant circuit.
♦ Red = small coolant circuit.
♦ Brown = heater circuit.
♦ Yellow = gear oil cooling circuit.
♦ Green = auxiliary radiator.
♦ The arrows point in the direction of coolant flow.
1. Cooling system/coolant
273
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1 - Radiator for engine cool‐
ant
2 - Radiator outlet coolant
temperature sender -G83-
3 - Actuator for engine tem‐
perature regulation -N493-
4 - Cylinder head/cylinder
block
5 - Restrictor
6 - Coolant expansion tank
7 - Cap for coolant expansion
tank
❑ Check pressure relief
valve ⇒ page 291
8 - Non-return valve
9 - Exhaust manifold
❑ Integrated in cylinder
head
10 - Turbocharger
11 - Heat exchanger for heat‐
er
12 - Restrictor
13 - Non-return valve
14 - Auxiliary pump for heat‐
ing -V488-
15 - Radiator outlet coolant -
G62-
16 - Coolant shut-off valve -
N82-
17 - Restrictor
18 - Circulation pump -V55-
19 - Coolant pump
20 - Coolant valve for gearbox -N488-
21 - Non-return valve
22 - Gear oil cooler
23 - Auxiliary radiator
❑ Location: in front right wheel housing
274
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1.1.5
Vehicles with dual clutch gearbox and
auxiliary radiator on right and left sides
Note
♦ Blue = large coolant circuit.
♦ Red = small coolant circuit.
♦ Brown = heater circuit.
♦ Yellow = gear oil cooling circuit.
♦ The arrows point in the direction of coolant flow.
1. Cooling system/coolant
275
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1 - Auxiliary radiator
❑ Location: in front right
wheel housing
❑ Assembly overview ⇒
page 352
❑ Removing and instal‐
ling ⇒ page 369
2 - Radiator outlet coolant
temperature sender -G83-
❑ Assembly overview ⇒
page 321
❑ Removing and instal‐
ling ⇒ page 341
3 - Actuator for engine tem‐
perature regulation -N493-
4 - Cylinder head/cylinder
block
❑ Renew coolant after re‐
placing
❑ Assembly overview ⇒
page 142
❑ Removing and instal‐
ling ⇒ page 145
5 - Restrictor
6 - Coolant expansion tank
7 - Cap for coolant expansion
tank
❑ Check pressure relief
valve ⇒ page 291
8 - Non-return valve
9 - Exhaust manifold
10 - Turbocharger
❑ Assembly overview ⇒ page 374
❑ Removing and installing ⇒ page 380
11 - Heat exchanger for heater
❑ Renew coolant after replacing
12 - Restrictor
13 - Non-return valve
14 - Auxiliary pump for heating -V488-
❑ Assembly overview ⇒ page 317
❑ Removing and installing ⇒ page 327
15 - Radiator outlet coolant -G62-
❑ Assembly overview ⇒ page 321
❑ Removing and installing ⇒ page 340
16 - Coolant shut-off valve -N82-
❑ Assembly overview ⇒ page 317
❑ Removing and installing ⇒ page 330
17 - Coolant pump
❑ Assembly overview ⇒ page 315
❑ Removing and installing ⇒ page 324
276
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
18 - Restrictor
19 - Coolant valve for gearbox -N488-
20 - Gear oil cooler
21 - Auxiliary radiator
❑ Fitting location: front left wheel housing
❑ Assembly overview ⇒ page 352
❑ Removing and installing ⇒ page 369
22 - Non-return valve
23 - Radiator for engine coolant
❑ Renew coolant after replacing
❑ Assembly overview ⇒ page 348
❑ Removing and installing ⇒ page 356
1.1.6
Sharan with additional heat exchanger
Note
♦ Blue = large coolant circuit.
♦ Red = small coolant circuit.
♦ Brown = heater circuit.
♦ Yellow = gear oil cooling circuit.
♦ The arrows point in the direction of coolant flow.
1. Cooling system/coolant
277
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
1 - Radiator for engine cool‐
ant
2 - Radiator outlet coolant
temperature sender -G83-
3 - Actuator for engine tem‐
perature regulation -N493-
4 - Cylinder head/cylinder
block
5 - Restrictor
6 - Auxiliary heater
❑ Equipment version
7 - Coolant expansion tank
8 - Cap for coolant expansion
tank
❑ Check pressure relief
valve ⇒ page 291
9 - Non-return valve
10 - Exhaust manifold
❑ Integrated in cylinder
head
11 - Turbocharger
12 - Restrictor
13 - Heat exchanger for heat‐
er
❑ Front
14 - 2nd heat exchanger for
heater unit
❑ Rear
15 - Heater coolant shut-off
valve -N279-
16 - Auxiliary pump for heating -V488-
17 - Non-return valve
18 - Radiator outlet coolant -G62-
19 - Coolant shut-off valve -N82-
❑ Not applicable for automatic gearbox
20 - Restrictor
21 - Coolant pump
22 - Coolant valve for gearbox -N488-
❑ Installed behind gear oil cooler in the case of automatic gearbox
23 - Non-return valve
24 - Gear oil cooler
1.2
Draining and adding coolant
278
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
Special tools and workshop
equipment required
♦ Adapter for cooling system tester -V.A.G 1274/8-
♦ Hose clamp pliers -VAS 6340-
♦ Cooling system charge unit -VAS 6096-
♦ Drip tray for workshop hoist -VAS 6208-
♦ Refractometer -T10007 A-
♦ Vehicle diagnostic tester
1. Cooling system/coolant
279
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
Draining
CAUTION
The cooling system could be under pressure. Hot steam/hot
coolant can escape - risk of scalding.
Skin and other parts of the body may be scalded.
– Wear protective gloves.
– Wear protective goggles.
– Reduce excess pressure by covering cap of coolant ex‐
pansion tank with suitable cloth and opening it carefully.
– Open cap -arrow- for coolant expansion tank.
– Remove noise insulation -1- ⇒ General body repairs, exteri‐
or; Rep. gr. 66; Noise insulation; Assembly overview - noise
insulation.
– Place drip tray for workshop hoist -VAS 6208- underneath.
– Pull off connector of radiator outlet coolant temperature
sender.
280
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
– Disconnect coolant hose with plug-in connector -1- from low‐
er right of radiator, and drain coolant.
1. Cooling system/coolant
281
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
Preparing cooling system for filling:
282
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
Note
♦ The water used for mixing has a major influence on the ef‐
fectiveness 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 specified by Volkswagen. Distilled water satisfies all
requirements. Therefore, only ever use distilled water when
mixing coolant for topping up or renewing coolant.
♦ Use only coolant additives as per ⇒ Electronic parts cata‐
logue (ETKA). Other coolant additives may reduce corrosion
protection substantially. The resulting damage could lead
to loss of coolant and subsequent severe damage to the
engine.
♦ Mixed in the proper proportions, coolant inhibits frost and
corrosion damage as well as scaling. Additives also raise the
boiling point of the coolant. Therefore, the cooling system
must be filled all year round with coolant additive.
♦ Because of its high boiling point, coolant improves engine
reliability under heavy loads, particularly in countries with
tropical climates.
♦ The refractometer -T10007A- or refractometer -T10007B-
must be used to determine the current anti-freeze value.
♦ The scale -1- of the refractometer is calibrated for the cool‐
ant additives G12++ and G12evo.
♦ The scale -2- of the refractometer is calibrated for the cool‐
ant additive G13.
♦ If it is not possible to ensure that the same type of coolant
additive is filled: always determine anti-freeze protection us‐
ing the scale for G13.
♦ Anti-freeze protection must be guaranteed down to -25°C as
a minimum and, in countries with arctic conditions, down
to approx. -36°C. Increasing the anti-freeze protection is
permissible only if climatic conditions require stronger anti-
freeze protection. It may, however, be increased only to a
maximum of -48°C. Otherwise, the cooling effect will be im‐
paired.
♦ Do not reduce the coolant concentration by adding wa‐
ter even in warmer seasons and in warmer countries. An‐
1. Cooling system/coolant
283
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
ti-freeze protection must be guaranteed down to at least
-25°C.
♦ The temperature reading on the refractometer corresponds
to the »ice flocculation point«. Flakes of ice may start form‐
ing in the coolant below this temperature.
♦ Never reuse old coolant.
♦ Use only a water/coolant additive mixture as a slip agent for
coolant hoses.
Coolant mixture ratio
•
•
•
Coolant (40%) and distilled water (60%) for frost protection
to -25°C
Coolant (50%) and distilled water (50%) for frost protection
to -36°C
Coolant: ⇒ Electronic parts catalogue (ETKA).
Sequence of operations
– Connect coolant hose with plug-in connector -1- to radiator
at bottom right ⇒ page 349 .
– Connect connector of radiator outlet coolant temperature
sender.
– Fill coolant expansion tank of -VAS 6096- with 10 litres of
pre-mixed coolant in correct mixture ratio; mixture ratio ⇒
page 284 .
Sharan:
– Unbolt coolant expansion tank -arrows- and tilt forwards
slightly.
284
Rep. gr.19 - Cooling
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
All:
– Screw adapter for cooling system tester -V.A.G 1274/8- onto
coolant expansion tank -1-.
– Attach cooling system charge unit -VAS 6096- to adapter
-V.A.G 1274/8-.
– Feed vent hose -2- into a small container -3-.
Note
Exhaust air takes a slight quantity of coolant along with it; this
should be collected.
– Close valves -A- and -B- (turn lever transverse to direction of
flow to do this).
– Fit hose -4- to compressed air supply with a pressure of
6 … 10 bar.
– Connect ⇒ Vehicle diagnostic tester, and select following
functions.
♦ 0001 - Engine electronics, functions
♦ 0001 - Fill/bleed cooling system
Filling with coolant:
– Open valve -B-; turn lever in direction of flow to do this.
1. Cooling system/coolant
285
Arteon 2018 ➤, Arteon 2021 ➤, Arteon Shooting Brake 2021 ➤, Golf 2013 ➤, Golf 2 ...
4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition
02.2021
•
In cooling system, vacuum is generated by suction jet pump;
needle of gauge must move into green area.
– Also briefly open valve -A- (turn lever in direction of flow to
do this) so that hose on -VAS 6096- coolant reservoir fills
with coolant.
– Close valve -A- again.
– Leave valve -B- open for a further 2 minutes.
•
Vacuum continues to be generated in the cooling system by
the suction jet pump; the needle of gauge must remain in
green range.
– Close valve -B-.
– Pull off compressed air hose.
•
The needle on the gauge should stop in the green zone.
The vacuum level in the cooling system is then sufficient for
subsequent filling.
Note
♦ If the needle does not reach the green zone, repeat the
process.
♦ If vacuum drops, cooling system must be checked for leaks.
♦ The subsequent filling must be performed »slowly«.
– Open valve -A- slowly.
•
Vacuum in cooling system causes coolant to be extracted
from -VAS 6096- coolant reservoir and coolant system to be
filled.
•
The coolant level must be above the max. marking after
filling.
– Remove cooling system charge unit -VAS 6096- from cool‐
ant expansion tank.
– Install noise insulation ⇒ General body repairs, exterior;
Rep. gr. 66; Noise insulation; Assembly overview – noise
insulation.
– On vehicles with auxiliary heater, switch on auxiliary heater
for about 30 seconds.
– Set temperature regulator to “HI”.
– Switch off air conditioner compressor. To do this, press AC
button.
•
LED in button should not light up.
– Start engine and run it for max. 2 min. at a speed of approx.
1,500 rpm.
– Fill coolant up to the overflow hole of the coolant expansion
tank while the engine is running.
– Tighten cap of coolant expansion tank until it engages.
– Then run engine at idling speed until radiator fan cuts in.
– Check coolant level.
286
Rep. gr.19 - Cooling
2024 VW Tiguan Owner's Manual
