Removing and installing knock sensor 4 G199 - vehicles up to model year 2013 — AUDI

Removing and installing
knock sensor 4
G199
- vehicles up to model year 2013
Special tools and workshop equipment required
Engine and gearbox jack
V.A.G 1383 A
Removing
Set front wheels to straight-ahead position.
Caution
Electronic components are susceptible to damage.
Observe notes on procedure for disconnecting the battery.
Disconnect earth wire from battery terminal
Electrical system
Rep. gr.
27
Battery; Disconnecting and connecting battery
.
Support engine in installation position
Chapter
.
Vehicles with engine codes CGTA/CTFA:
Remove bumper cover (front)
General body repairs, exterior
Rep. gr.
63
Bumper (front); Removing and installing bumper cover
.
All vehicles (continued):
Remove noise insulation panels
General body repairs, exterior
Rep. gr.
66
Noise insulation; Removing and installing noise insulation
.
Remove front underbody trim panels (right and left)
General body repairs, exterior
Rep. gr.
66
Underbody trim; Exploded view - underbody trim
.
Remove longitudinal member (bottom left and right)
General body repairs, exterior
Rep. gr.
50
Lock carrier; Exploded view - lock carrier
.
Completely remove wheel housing liners (front left and front right)
General body repairs, exterior
Rep. gr.
66
Wheel housing liners; Removing and installing wheel housing liner (front)
.
Unbolt drive shaft (left and right) from gearbox flange shafts
Running gear, axles, steering
Rep. gr.
40
Drive shaft; Removing and installing drive shaft
.
All vehicles (continued):
Remove bolt
4
for battery positive wire
3
and bolt
2
for earth wire
1
and move electrical wiring clear.
Remove bolts
1 and 2
.
Unplug electrical connector
arrow
at front vehicle level sender
G78
/
G289
and move electrical wiring clear.
Remove bolt
1
for anti-roll bar on both sides.
Note
Disregard
items 2, 3
.
Remove bolts
3
on both sides.
Note
Disregard
items 1, 2
.
Remove bolt
arrow
for power steering hydraulic line.
Remove bolts for gearbox mounting
arrows
on both sides.
Detach intermediate steering shaft from steering rack and move clear by telescoping splines together
Running gear, axles, steering
Rep. gr.
48
Steering column; Removing and installing intermediate steering shaft
.
Unplug electrical connector
2
.
Remove bolt
1
.
Remove electrical connector
2
for
Servotronic solenoid valve
N119
from bracket and unplug connector:
Note
Disregard
item 1
.
Unplug electrical connectors (left and right)
1, 2
.
Remove bolt for engine mountings
arrow
on both sides.
Support subframe using
engine and gearbox jack
V.A.G 1383 A
as illustrated.
Mark installation position of subframe on longitudinal members with felt-tip pen.
Unscrew subframe bolts
1, 2, 3
on both sides in several stages and in diagonal sequence.
Caution
Risk of damage to running gear components.
The vehicle must NOT be lowered onto its wheels if the engine/gearbox mountings, steering rack or subframe cross brace are not properly installed.
Lower subframe using
engine and gearbox jack
V.A.G 1383 A
just far enough for access to
knock sensor 4
G199
, ensuring sufficient clearance for hydraulic fluid hoses (left-side) and electrical wiring (right-side).
Unplug electrical connector
arrow
.
Remove bolt
2
.
Detach
knock sensor 4
G199
and unplug electrical connector
1
.
Installing
Installation is carried out in the reverse order; note the following:
Note
The tightening torque influences the function of the knock sensor.
Install engine mounting (left-side)
Chapter
.
WARNING
Danger of fire and damage if the engine cover panel is not fitted.
The engine cover panel must always be fitted before the bonnet is closed.
If the engine cover panel is not fitted, it is not permissible to start or drive the vehicle with the bonnet closed.
Tightening torques
Chapter
“
Exploded view - ignition system
”