Removing and installing fresh air blower V2 (with J126 control unit) — AUDI

Removing and installing
fresh air blower
V2
(with
J126
control unit)
Note
The
fresh air blower control unit
J126
and the
fresh air blower
V2
are one component on the Audi R8 and therefore cannot be individually removed and installed and replaced
Electronic parts catalogue
.
WARNING
Risk of injury from knee airbag.
Before working in the vicinity of pyrotechnic components, the mechanic must
“discharge static electricity”
. Observe the safety precautions for working on airbags
General body repairs, interior
Rep. gr.
00
Safety precautions; Safety precautions when working on pyrotechnic components
.
Removing
Switch off ignition.
Remove glove box
General body repairs, interior
Rep. gr.
68
Shelves / trim panels; Removing and installing glove box
.
Remove footwell vent (front passenger side)
Chapter
.
Equipment version with knee airbag: Remove knee airbag
General body repairs, interior
Rep. gr.
69
Knee airbags; Exploded view - knee airbag
.
Caution
The air conditioner will not function properly if control motors and/or the corresponding connectors are interchanged
Chapter
“
Overview of control motors of heater and air conditioner
”
.
The control motors and connectors are identical. If these are incorrectly installed or connected, the corresponding flaps can no longer be properly matched and/or activated.
Mark control motors and connectors clearly before detaching or removing to prevent incorrect installation.
Caution
Switching on the ignition when the air intake box is removed results in an entry in the heater and air conditioner event memory
Do not switch on ignition when air intake box is removed.
If the ignition was switched on when the air intake box was removed, interrogate and clear event memory of
front air conditioner operating and display unit
E87
Vehicle diagnostic tester
in
“Guided Fault Finding”
mode.
Remove air intake box
4
Chapter
.
Unscrew bolt
2
(tightening torque: 2 Nm).
Pull fresh air blower
1
out of air intake box
4
.
Caution
Fan impeller imbalance.
Do not touch the fan wheel of the fresh air blower
V2
3
. Applying force to the fan wheel or moving the balancing weights attached to the fan wheel could cause imbalance and therefore lead to operating problems.
Installing
Install in reverse order.
Install air intake box
4
Chapter
.
Re-install removed components in reverse order.
Interrogate event memory and erase any entries displayed; then perform
“Basic setting”
Vehicle diagnostic tester
(
“Guided Fault Finding”
).
As a final step, check operation of heater and air conditioner.