Removing front operating and display unit (Climatronic control unit J255) — AUDI

Removing front operating and display unit (
Climatronic control unit
J255
)
Interrogate the encoding and adaption of the front operating and display unit,
Climatronic control unit
J255
by way of the
“Control unit replacement”
function in the guided fault-finding routine (if the front operating and display unit,
Climatronic control unit
J255
is to be replaced).
"Guided fault-finding" function of vehicle diagnostic, testing and information system VAS 5051.
Switch off ignition.
Note
The procedure for removing the front operating and display unit (
Climatronic control unit
J255
) is the same for both the
“deluxe”
and the
“basic”
versions.
The front operating and display unit,
Climatronic control unit
J255
A
is held in position in the centre console by way of the clips
B
(on lower side) and
C
(on upper side).
Clips
C
(positive-locking clips with an angle of approx. 65°) are fitted on the upper side and clips
B
(friction-locked clips with an angle of approx. 120°) on the lower side. The clips
C
must be released to remove the front operating and display unit,
Climatronic control unit
J255
(e.g. using a small screwdriver after removing the
CD changer
R41
).
Remove the
“centre”
dash panel vent
A
General body repairs, interior
Rep. gr.
68
Dash panel
.
Note
The
“centre”
dash panel vent
A
is held in position in the centre console by way of the clips
D
and
E
. Insert the
hooks
3438
B
for example in the holes
C
of the dash panel vent as shown and pull the dash panel vent out of the centre console.
Remove the
CD changer
R41
F
Electrical system
Rep. gr.
91
.
Note
Depending on equipment, a storage compartment or other component may also have been fitted; for removal refer to
General body repairs, interior
Rep. gr.
68
Dash panel
.
Use two small screwdrivers
A
to release the fasteners of the two upper clips
C
(by way of the slots in the dash panel centre section
D
). Then reach beneath the front operating and display unit,
Climatronic control unit
J255
B
and pull it carefully out of the centre console.
Release fasteners of connector
D
by pressing retainer tabs
F
and unplug connector.
Wait 30 sec. (to protect electronics in front operating and display unit,
Climatronic control unit
J255
).
Release and unplug connector
E
.
Release fasteners of connectors
A
to
C
by pressing retainer tabs
F
and unplug connectors.
Note
This illustration shows the connectors on a front operating and display unit (
Climatronic control unit
J255
,
“deluxe”
version) with rear seat heating (optional extra). The
“Basic”
version is not fitted with connectors
A
and
C
.Vehicles without
“Heated seats”
optional extra have no connector
E
.