Audi TT (2007 year). Manual — part 46
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
3
Coolant pipes, coolant temperature
senders, coolant circulation pump
3.1
Coolant pipes, coolant temperature senders, coolant circulation pump - ex‐
ploded view
1 - Grommet
❑ Not supplied separately
2 - Sleeve
❑ Not supplied separately
3 - Bolt
❑ 2.7 Nm
4 - Bolt
❑ 40 Nm
5 - Bracket
❑ For pump for exhaust
gas recirculation cooler
-V400-
6 - Coolant pipe (front)
❑ Removing and installing
7 - O-ring
❑ Renew
8 - Coolant pipe (right-side)
❑ Removing and installing
9 - O-ring
❑ Renew
10 - Radiator outlet coolant
temperature sender -G83-
❑ Removing and installing
11 - Retaining clip
12 - Bolt
❑ 9 Nm
13 - Nut
❑ 9 Nm
14 - Bolt
❑ 9 Nm
15 - Coolant pipe
16 - Bolt
❑ 9 Nm
17 - Gasket
❑ Renew
18 - Connection
3. Coolant pipes, coolant temperature senders, coolant circulation pump
175
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
19 - Bolt
❑ 9 Nm
20 - Retaining clip
21 - Coolant temperature sender -G62-
❑ Removing and installing
22 - O-ring
❑ Renew
23 - Centre hex stud
❑ 9 Nm
24 - Bolt
❑ 9 Nm
25 - Coolant pipe (left-side)
❑ Removing and installing
26 - Bolt
❑ 9 Nm
27 - Bolt
❑ 40 Nm
28 - Bolt
❑ 13 Nm
29 - Pump for exhaust gas recirculation cooler -V400-
❑ Removing and installing
3.2
Removing and installing coolant temper‐
ature sender -G62-
Removing
• Engine cold.
– Open filler cap on coolant expansion tank briefly and allow re‐
sidual pressure in cooling system to dissipate.
176
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Remove bolts -arrows-.
– Use removal lever -80 - 200- to move electrical wiring and ho‐
ses at air pipe (left-side) clear.
– Release hose clip -3- and push air pipe (left-side) with coolant
pipe towards the left.
Note
Disregard -items 1, 2, 4 and 5-.
– Unplug electrical connector -2- at coolant temperature sender
-G62- .
Note
Place a cloth underneath the connection to catch escaping cool‐
ant.
– Pull off retaining clip -1- and pull coolant temperature sender
-G62- out of connection.
Note
Disregard -arrows-.
Installing
Installation is carried out in the reverse order; note the following:
Note
♦
Fit new O-rings.
♦
To avoid loss of coolant, insert new coolant temperature send‐
er -G62- immediately into connection.
– Install air pipe (left-side)
.
.
3. Coolant pipes, coolant temperature senders, coolant circulation pump
177
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
3.3
Removing and installing radiator outlet
coolant temperature sender -G83-
Removing
• Engine cold.
– Open filler cap on coolant expansion tank briefly and allow re‐
sidual pressure in cooling system to dissipate.
– Remove engine cover panel -arrows-.
– Unplug electrical connector -2- at radiator outlet coolant tem‐
perature sender -G83- .
Note
Place a cloth underneath to catch escaping coolant.
– Pull off retaining clip -1- and pull radiator outlet coolant tem‐
perature sender -G83- out of connection on coolant pipe.
Installing
Installation is carried out in the reverse order; note the following:
Note
♦
Fit new O-ring.
♦
To avoid loss of coolant, fit new radiator outlet coolant tem‐
perature sender -G83- into coolant pipe immediately.
3.4
Removing and installing pump for ex‐
haust gas recirculation cooler -V400-
Special tools and workshop equipment required
♦ Hose clamps for hoses up to 25 mm -3094-
178
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