Removing and installing throttle valve module J338 — AUDI

Removing and installing
throttle valve module
J338
Safety precautions and repair instructions for vehicles with hybrid drive
DANGER!
Risk of fatal injury if high-voltage components are damaged.
Observe the following when working in the vicinity of high-voltage components or wiring:
It is not permitted to use cutting or forming tools, other sharp-edged tools or heat sources such as welding, brazing, soldering, hot air or thermal bonding equipment.
Before starting work, visually inspect the high-voltage components in the areas involved.
Before working in the engine compartment, visually inspect the
power and control electronics for electric drive
JX1
,
electric drive motor
V141
,
air conditioner compressor
V470
and high-voltage wiring.
Before working on the vehicle underbody, visually inspect the high-voltage wiring and covers.
Before working on the rear section of the vehicle, visually inspect the high-voltage wiring and the electro-box with the
maintenance connector for high-voltage system
TW
.
Visually inspect all potential equalisation lines.
Check the following when making the visual inspection:
There must be no external damage on any component.
The insulation of the high-voltage wiring and potential equalisation lines must not be damaged.
There must be no unusual deformation of the high-voltage wiring.
All high-voltage components must be identified by a red warning sticker.
WARNING
Working on vehicles with high-voltage wiring:
Do not support yourself or tools on high-voltage wiring or associated components --> this can damage the insulation.
High-voltage wiring must not be excessively bent or kinked --> this can damage the insulation.
The round high-voltage connectors are colour-coded with an external coloured ring and are provided with mechanical coding or guide lugs. It is important to observe this coding when joining up the round high-voltage connectors, otherwise the connectors can be damaged.
Removing
Remove engine cover panel
Chapter
.
Open hose clip
arrow
securing air hose and disconnect hose downwards from
throttle valve module
J338
.
Unplug electrical connector
1
from
throttle valve module
J338
.
Remove the four bolts
arrows
from
throttle valve module
J338
and detach
throttle valve module
J338
.
Installing
Installation is carried out in the reverse order; note the following:
Clean sealing surface for seal.
Renew seal.
After renewing throttle valve module, perform
“Adaption”
for
engine control unit
J623
/
throttle valve module
J338
in
Vehicle diagnostic tester
,
Guided Functions
.
Tightening torques
Chapter
“
Exploded view - intake manifold
”