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 

⇒ page 230

❑ Removing and installing

⇒ page 231

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-

❑ Removing and installing 

⇒ page 228

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 

⇒ page 227

 .

Installation is carried out in the reverse order; note the following:

Note

Renew O-ring.

⇒ page 208

 .

– Install air hose with plug-in connector 

⇒ page 209

 .

3.4

Checking exhaust gas recirculation

cooler change-over

Special tools and workshop equipment required
♦ Hand vacuum pump -VAS 6213-

230