VW Tiguan Service & Owner's Manuals
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Table of Contents > Cooling > Coolant pump, regulation of cooling system

VW Tiguan 4-cyl. Direct Injection Engine (1.8l and 2.0l, EA 888 gen III) ➜ Coolant pump, regulation of cooling system

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4-cyl. direct injection engine (1.8 l and 2.0 l, 4 V, EA 888 gen III, turbocharger, chain drive) - Edition  
02.2021  
2
Coolant pump, regulation of cooling  
system  
β‡’ o2.1 verview - coolant pump, thermostat”, page 315  
β‡’ o2.2 verview - electric coolant pump”, page 317  
β‡’ o2.3 verview - coolant temperature sender”, page 321  
β‡’ a2.4 nd installing toothed belt for coolant pump”, page 322  
β‡’ a2.5 nd installing coolant pump”, page 324  
β‡’ a2.6.1 nd installing auxiliary pump for heatingV488”, page  
327  
β‡’ a2.7.1 nd installing coolant shut-off valveN82”, page 330  
β‡’ a2.7.2 nd installing coolant valve for gearboxN488, vehicles  
with 6-speed dual clutch gearbox”, page 332  
β‡’ a2.7.3 nd installing coolant valve for gearboxN488, vehicles  
with 7-speed dual clutch gearbox”, page 334  
β‡’ a2.8 nd installing actuator for engine temperature regula‐  
tionN493”, page 337  
β‡’ a2.9 nd installing coolant temperature senderG62”, page 340  
β‡’ a2.10 nd installing radiator outlet coolant temperature send‐  
erG83”, page 341  
2.1  
Assembly overview - coolant pump, thermostat  
2. Coolant pump, regulation of cooling system  
315  
theMANUALS.org  
 
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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 - Connection  
2 - O-ring  
❑ Renew  
❑ Moisten with coolant  
3 - Centring pin  
4 - Bolt  
❑ Specified torque and  
tightening sequence β‡’  
page 317  
5 - Seal  
❑ Renew  
6 - Coolant pump  
❑ Removing and instal‐  
ling β‡’ page 324  
❑ New coolant pump: re‐  
move protective cap  
7 - Bolt  
❑ Tightening sequence β‡’  
page 317  
8 - Toothed belt  
❑ For coolant pump  
❑ Removing and instal‐  
ling β‡’ page 322  
9 - Bolt  
❑ 9 Nm  
10 - Toothed belt guard  
11 - Bolt  
❑ Left-hand thread  
❑ If bolt has been loos‐  
ened, it must be re‐  
newed  
❑ 10 Nm +90Β° further  
12 - Toothed belt drive sprocket  
❑ Observe installation position  
13 - Oil seal for balance shaft, inlet side  
❑ Renewing β‡’ page 128  
14 - Balancer shaft  
15 - Seal  
❑ Renew  
16 - Bolt  
❑ 9 Nm  
17 - Union  
18 - Spring  
19 - Seal  
❑ Renew  
20 - Actuator for engine temperature regulation -N493-  
❑ Removing and installing β‡’ page 337  
316  
Rep. gr.19 - Cooling  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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  
Actuator for engine temperature regulation -N493- - tightening  
torque and sequence  
– Tighten bolts in the sequence -1 … 5- to 9 Nm.  
Coolant pump - specified torque and tightening sequence  
– Tighten bolts for coolant pump in the sequence -1 … 4- to 9  
Nm.  
2.2  
Assembly overview - electric coolant pump  
Auxiliary pump for heating -V488-, coolant shut-off valve -N82-  
2. Coolant pump, regulation of cooling system  
317  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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 - Coolant hose  
2 - Coolant shut-off valve -  
N82-  
❑ Removing and instal‐  
ling β‡’ page 330  
3 - Auxiliary pump for heating  
-V488-  
❑ with holder  
❑ May vary depending on  
version  
❑ Removing and instal‐  
ling β‡’ page 327  
4 - Bracket  
❑ for auxiliary pump for  
heating -V488-  
5 - Bolt  
❑ 20 Nm  
6 - Clip  
7 - Coolant hoses  
8 - Coolant hose  
9 - Bolt  
❑ 9 Nm  
Coolant valve for gearbox -N488-, vehicles with 6-speed dual  
clutch gearbox or automatic gearbox  
318  
Rep. gr.19 - Cooling  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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 - Bolt  
❑ 9 Nm  
2 - Coolant hose  
3 - Nut  
❑ 9 Nm  
4 - Coolant hose  
5 - Coolant valve for gearbox  
-N488-  
❑ Removing and instal‐  
ling β‡’ page 332  
6 - Bracket  
❑ For coolant valve for  
gearbox -N488-  
❑ Shape may differ  
Coolant valve for gearbox -N488-, vehicles with 7-speed dual  
clutch gearbox  
2. Coolant pump, regulation of cooling system  
319  
theMANUALS.org  
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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 - Coolant hose  
2 - Hose clamp  
3 - Bolts  
❑ 25 Nm  
4 - Bracket  
❑ For coolant valve for  
gearbox -N488-  
5 - Coolant hose  
6 - Nuts  
❑ 9 Nm  
7 - Coolant valve for gearbox  
-N488-  
❑ Removing and instal‐  
ling β‡’ page 334  
Gearbox oil cooling pump -V478-  
Note  
The gearbox oil cooling pump -V478- is not installed in all vehicles.  
320  
Rep. gr.19 - Cooling  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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 - Bracket  
❑ For gearbox oil cooling  
pump -V478-  
2 - Sleeve  
3 - Bolt  
❑ 5 Nm  
4 - Electrical connector  
5 - Coolant hose  
6 - Spring-type clip  
7 - Gearbox oil cooling pump  
-V478-  
❑ Fitting location: below  
actuator for engine  
temperature regulation  
-N493-  
❑ To remove, remove  
charge air pipe be‐  
tween throttle valve  
module and charge air  
cooler  
8 - Coolant hose  
9 - Rubber mounting  
10 - Bolt  
❑ 20 Nm  
11 - Nut  
❑ 8 Nm  
2.3  
Assembly overview - coolant temperature sender  
2. Coolant pump, regulation of cooling system  
321  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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 - Retaining clip  
❑ Check for firm seating  
2 - O-ring  
❑ Renew  
3 - Radiator outlet coolant  
temperature sender -G83-  
❑ Removing and instal‐  
ling β‡’ page 341  
4 - Electrical connector  
5 - Radiator outlet coolant -  
G62-  
❑ On cylinder head (gear‐  
box end).  
❑ Removing and instal‐  
ling β‡’ page 340  
6 - O-ring  
❑ Renew  
❑ Moisten with coolant  
7 - O-ring  
❑ Renew  
❑ Moisten with coolant  
8 - Bolt  
❑ Renew  
❑ 4 Nm +45Β°  
2.4  
Removing and installing toothed belt  
for coolant pump  
Special tools and workshop equipment required  
♦ Insert tool -T10360-  
Removing  
– Drain coolant β‡’ page 278 .  
– Remove air filter housing β‡’ page 443 .  
322  
Rep. gr.19 - Cooling  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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  
– Unscrew bolt -arrow- on left and right.  
– Unclip lower part of air duct -1- and remove it.  
– Remove air pipe between turbocharger and charge air cool‐  
er β‡’ page 410 .  
– Lift retaining clip -1-, detach upper coolant connection and  
push it to one side.  
– Separate electrical connector -1- on oil pressure switch -2-.  
– Unscrew bolts -arrows- and remove toothed belt guard.  
2. Coolant pump, regulation of cooling system  
323  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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 drive sprocket bolt has a left-hand thread.  
– Loosen bolt on drive sprocket -1- for coolant pump using  
torque wrench -V.A.G 1410- and insert tool -T10360-, and  
unscrew it by 3 turns. To do this, counter hold at vibration  
damper.  
Note  
If tool cannot be used on account of starter securing bolt (on  
vehicles with manual gearbox), unscrew respective securing  
bolt by approx. 15 mm.  
– Remove toothed belt -2-.  
Installing  
Installation is carried out in the reverse order. When installing,  
note the following:  
– Renew bolt for drive sprocket.  
– Installation position of drive gear: Collar on drive gear faces  
gearbox.  
– Fit toothed belt and tighten securing bolt.  
– Add coolant β‡’ page 282 .  
Specified torques  
♦ β‡’ o2.1 verview - coolant pump, thermostat”, page 315  
♦ β‡’ o3.1 verview - air filter housing”, page 441  
2.5  
Removing and installing coolant pump  
Removing  
– Drain coolant β‡’ page 278 .  
– Remove air filter housing β‡’ page 443 .  
– Unscrew bolt -arrow- on left and right.  
324  
Rep. gr.19 - Cooling  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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  
– Unclip lower part of air duct -1- and remove it.  
– Remove air pipe between turbocharger and charge air cool‐  
er β‡’ page 410 .  
– Remove throttle valve module β‡’ page 453 .  
– Lift retaining clip -1-, detach upper coolant connection and  
push it to one side.  
– Disconnect connectors -2, 3 and 4-. Unscrew securing bolts  
-1-, and lay bracket to one side.  
– Separate electrical connector -1- on oil pressure switch -2-.  
2. Coolant pump, regulation of cooling system  
325  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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  
– Unscrew bolts -arrows- and remove toothed belt guard.  
– Unscrew bolts -1 … 4-, and remove toothed belt from cool‐  
ant pump.  
– Unscrew bolts -1 … 4- completely, and detach coolant pump  
from actuator for engine temperature regulation -N493-.  
Installing  
Install in reverse order of removal, observing the following:  
– Fit coolant pump, and install toothed belt.  
– Ensure correct seating of centring rings -arrows- and seal  
-3-.  
326  
Rep. gr.19 - Cooling  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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  
– Tighten bolts -1 … 4- when the toothed belt is fitted. Speci‐  
fied torque and tightening sequence β‡’ page 317 .  
– If a new coolant pump has been installed, pull off protective  
cap -1-.  
– Add coolant β‡’ page 282 .  
Specified torques  
♦ β‡’ o2.1 verview - coolant pump, thermostat”, page 315  
♦ β‡’ o3.1 verview - air filter housing”, page 441  
2.6  
Removing and installing electric cool‐  
ant pump  
β‡’ a2.6.1 nd installing auxiliary pump for heatingV488”, page  
327  
2.6.1  
Removing and installing auxiliary pump  
for heating -V488-  
Special tools and workshop equipment required  
2. Coolant pump, regulation of cooling system  
327  
theMANUALS.org  
 
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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  
♦ Hose clamps to 25 mm -3094-  
♦ Hose clamp pliers -VAS 6340-  
♦ Spring-type clip pliers -VAS 6362-  
Removing  
328  
Rep. gr.19 - Cooling  
theMANUALS.org  
Arteon 2018 ➀, Arteon 2021 ➀, Arteon Shooting Brake 2021 ➀, Golf 2013 ➀, 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  
Fit all heat insulation sleeves in the original position when instal‐  
ling.  
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- β‡’ General body repairs, exteri‐  
or; Rep. gr. 66; Noise insulation; Assembly overview - noise  
insulation.  
– Remove air pipe between turbocharger and charge air cool‐  
er β‡’ page 410 .  
– Open heat insulation sleeve -3-.  
– Disconnect electrical connector -1-.  
– Clamp off coolant hoses on auxiliary pump for heating -  
V488- using hose clamps -3094-.  
2. Coolant pump, regulation of cooling system  
329  
theMANUALS.org