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– Unplug relevant electrical connector and move electrical wir‐
ing clear:
1 - For Lambda probe 2 -G108-
2 - For Lambda probe 2 -G131- (after catalytic converter)
– Unscrew relevant Lambda probe using ring spanner -3337/7- :
1 - Lambda probe 2 -G108-
2 - Lambda probe 2 after catalytic converter -G131-
Note
For illustration purposes, the installation position is shown with
the engine removed.
Installing
• Tightening torques
⇒ „2.17 Lambda probes - overview“, page 42
Installation is carried out in the reverse order; note the following:
Note
♦
New Lambda probes are coated with an assembly paste.
♦
If reinstalling the old Lambda probes, coat the threads with
high-temperature paste ⇒ Electronic parts catalogue .
♦
The assembly paste/high-temperature paste must not get into
the slots on the Lambda probe body.
♦
When installing, the Lambda probe wire must always be reat‐
tached at the same locations to prevent it from coming into
contact with the exhaust pipe.
♦
Fit all cable ties in the original positions when installing.
– Install plenum chamber partition panel ⇒ Rep. gr. 50 .
Audi A8 2010 ➤
Simos direct petrol injection and ignition system (6-cyl. 3.0 ltr. TFSI 4-valve) - Edition 12.2011
2. Injection system 45
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