Audi TT (2007 year). Manual — part 59
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.
3.2
Exhaust gas recirculation with exhaust gas recirculation cooler - exploded
view
1 - Vacuum line
❑ Do not alter shape
2 - Nut
❑ 9 Nm
3 - Exhaust gas recirculation
cooler
❑ Checking change-over
function
❑ Removing and installing
4 - Gasket
❑ Renew
5 - Bolt
❑ 20 Nm
6 - Pipe for exhaust gas recir‐
culation
7 - Clip
8 - Nut
❑ 9 Nm
9 - Bolt
❑ 20 Nm
10 - Gasket
❑ Renew
11 - Bolt
❑ 9 Nm
12 - Exhaust gas recirculation
valve -N18- with exhaust gas
recirculation potentiometer -
G212-
13 - Pipe for exhaust gas recirculation
14 - Bolt
❑ 20 Nm
15 - Gasket
❑ Renew
16 - Bolt
❑ 9 Nm
3. Exhaust gas recirculation system
227
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 exhaust gas re‐
circulation valve -N18- with exhaust gas
recirculation potentiometer -G212-
Removing
– Remove engine cover panel -arrows-.
– Release fasteners -1 ... 4- and remove centre noise insulation.
– Release hose clip -2-, lift retaining clip -1- and remove air hose.
228
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 -1- and -3-.
– Slacken hose clip -5- at intake manifold flap motor -V157- ,
detach air pipe -2- but do not remove.
Note
Disregard -item 4-.
– Unplug electrical connector -3- at intake manifold flap motor -
V157- .
Note
Disregard -items 1, 2, 4- and -arrow-.
– Unscrew bolts -arrows- and detach intake manifold flap motor
-V157- .
3. Exhaust gas recirculation system
229
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.
– Unplug electrical connector -1- on exhaust gas recirculation
valve -N18- with exhaust gas recirculation potentiometer -
G212- .
– Remove bolts -2- and -3- and detach exhaust gas recirculation
valve -N18- with exhaust gas recirculation potentiometer -
G212- .
Note
Disregard -item 4-.
Installing
• Tightening torque
.
Installation is carried out in the reverse order; note the following:
Note
Renew O-ring.
.
– Install air hose with plug-in connector
.
3.4
Checking exhaust gas recirculation
cooler change-over
Special tools and workshop equipment required
♦ Hand vacuum pump -VAS 6213-
230
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