Download
Table of Contents > Cooling > Coolant pump, thermostat, coolant pipes > Removing and installing thermostat

VW Passat B6 Service Manual ➜ Removing and installing thermostat

CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...  
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018  
– Lubricate sealing surface of balance shaft -2- with gear oil.  
– Fit oil seal -1- onto balance shaft.  
The marking “Luftseite” (or “Outside”) -arrow- should be legi‐  
ble from the outside.  
– Apply thrust piece -T10353- to oil seal -1- and press into cyl‐  
inder block to stop using bolt -2-, taking care not to cant oil  
seal.  
– Fit toothed belt for coolant pump ⇒ page 253 .  
Further assembly is performed in the reverse order of removal.  
2.5  
Removing and installing thermostat  
Note  
For vehicles with map-controlled engine cooling system thermo‐  
stat, the coolant pump must be removed in order to remove the  
map-controlled engine cooling system thermostat - F265- (cool‐  
ant thermostat) ⇒ page 251 .  
Special tools and workshop equipment required  
♦ Bit - T10058-  
Removing  
Proceed as follows:  
– Drain coolant ⇒ page 241 .  
256  
Rep. gr.19 - Cooling  
CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...  
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018  
– Pull cover off air duct (release clips on sides) -arrows-.  
– Release clips -arrows- air duct at the bottom and remove duct.  
– Detach air duct at bottom together with air hose.  
Vehicles with sound generator:  
– Remove charge air duct to sound generator ⇒ page 455 .  
All:  
– Release hose clip -2-.  
– Unscrew bolt -4-.  
– Separate electrical connector -arrow-.  
– Remove bolt -1- and take out air pipe downwards.  
– Move coolant hose -2- and wiring harness -1- clear.  
– Remove bolt -arrow- and remove bracket.  
2. Coolant pump, thermostat, coolant pipes  
257  
CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...  
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018  
– Remove bolt -2- at bracket for coolant pump for continued cir‐  
culation - V51- .  
Note  
The continued circulation coolant pump - V51- remains installed.  
– Disconnect coolant hoses -1 and 2- and move clear to one  
side.  
– Loosen nut -2-, remove bolt -1- and swivel support for intake  
manifold slightly to right.  
– Remove coarse oil separator ⇒ page 213 .  
– Unscrew bolts -arrows- and remove connection. Allen key,  
long reach 5 mm - T10058- is helpful for right-hand bolt.  
– Detach thermostat.  
Installing  
Specified torques ⇒ page 249 .  
Install in reverse order of removal, observing the following.  
Note  
Renew gaskets, seals and O-rings.  
– Clean sealing surface for O-ring.  
– Moisten O-ring with coolant.  
258  
Rep. gr.19 - Cooling