Audi Workshop Service and Repair Manuals
HOME
FEATURES
MENU
INDEX
ABOUT US
Removing and installing combination valve for secondary air system (right-side) >
< Checking combination valves for secondary air system for correct operation and leakage
A4 Mk3
Power unit
6-cylinder direct petrol injection engine (3.2 ltr. 4-valve), mechanics
Exhaust system
Secondary air system - country-specific version 2
Removing and installing combination valve for secondary air system (left-side)
Removing and installing combination valve for secondary air system (left-side)
Removing and installing combination valve for secondary air system (left-side)
Removing
Note
Fit all cable ties in the original positions when installing.
–
Remove front silencer (left-side)
→ Chapter
.
–
Remove plenum chamber partition panel
→ Rep. Gr.50
.
–
Remove electrical connector
-1-
for Lambda probe 2 after catalytic converter -G131- from bracket, unplug and move wiring clear.
Note
Disregard items marked
-2, 3, 4-
and
-arrows-
.
–
Remove nuts
-arrows-
and bolt
-1-
, detach catalytic converter (left-side) from exhaust manifold and move to rear.
–
Remove bolts
-arrows-
and detach heat shield
-1-
.
–
Remove bolts
-3-
for secondary air system hose.
–
Detach vacuum hose
-2-
from combination valve for secondary air system.
–
Unscrew bolts
-1-
and detach combination valve for secondary air system.
Installing
l
Tightening torque
→ Chapter
,
→ Fig.
Installation is carried out in the reverse order; note the following:
Note
Renew gasket.
–
Install catalytic converter (left-side)
→ Chapter
.
–
Install plenum chamber partition panel
→ Rep. Gr.50
.
Power unit
6-cylinder direct petrol injection engine (3.2 ltr. 4-valve), mechanics
Exhaust system
Secondary air system - country-specific version 2
Removing and installing combination valve for secondary air system (left-side)
Removing and installing combination valve for secondary air system (right-side) >
< Checking combination valves for secondary air system for correct operation and leakage