Page 3489 of 4133

AR54.30-P-6049GH
Removing and installing bulbs of instrument cluster
21.1.97
MODEL
163
P54.30-0632-06
Instrument cluster
A1e1
Left turn signal indicator lamp
A1e2
Right turn signal indicator lamp
A1e3
High beam indicator lamp
A1e4
Fuel reserve indicator lamp
A1e5
Generator charge indicator lamp
A1e6
Brake pad wear indicator lamp
A1e7
Low brake fluid level/parking brake
indicator lamp
A1e8
Instrument illumination
A1e9
Seat belt reminder lamp
A1e11
Low ECL indicator lamp
A1e12
Low engine oil level indicator lamp
A1e15
SRS MIL
A1e17
ABS MIL
A1e21
ASR warning lamp
A1e26
"CHECK ENGINE" MIL
A1e35
ETS MIL
A1e36
ETS warning lamp
A1e40
Steering lock warning lamp
A1e42
ESP MIL
Removing, installing
1
Disconnect ground cable from battery
To prevent the disconnected ground cable
contacting the ground point W16/4
unintentionally, insulate ground cable terminal.
AR54.10-P-0003A
2
Remove instrument cluster
AR54.30-P-6015GH
3
Remove bulbs
AR54.30-P-6049-01Z
Installation:
Install bulbs
AR54.30-P-6049-02Z
4
Install in opposite order
129 589 00 09 00 129 589 01 09 00
Socket
Socket
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Page 3490 of 4133
AR54.30-P-6049-01Z
Removing bulbs
129 589 00 09 00129 589 01 09 00
Pin socket
Pin socket
P54.30-0011-01
Turn bulbs to the left and remove using special tool
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Page 3491 of 4133
AR54.30-P-6031GH
Removing and installing instrument cluster housing
21.1.97
MODEL
163
P54.30-0631-06
1
Cover
2
Instrument cluster housing
3
Symbol strip
Removing, installing
1
Remove instrument cluster
AR54.30-P-6015GH
2
Unclip retaining lugs (arrows)
Installation:
The retaining lugs must lock
fully in position.
3
Remove cover (1) from instrument cluster
housing (2)
The symbol strips (3) may fall out sideways.
Installation:
Pay attention to vehicle equipment when
replacing symbol strips.
Ensure the adjusting knobs for the odometer
and electronic clock are seated correctly.
4
Install in reverse order
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Page 3492 of 4133
Page 3493 of 4133
AR54.30-P-6015GH
Remove instrument cluster
20.1.97
MODEL
163.113 /128 /136 /154 /157 /172 /174 /175
P54.25-2680-06
Steering wheel removed for clarity
3
Upper steering column cover
12
Side covering
P54.30-0630-06
Steering wheel removed for clarity
4
Clips
5
Frames
6
Hook
7
Lug
8
Mount
9
Screw
10
Spreading clips
11
Connector
13
Mount
A1
Instrument cluster
Remove, Install
1
Disconnect ground cable of battery
To prevent unintended contact, insulate
the ground lead cable lug.
AR54.10-P-0003A
2
Unlock steering wheel and move to its lowest
position
See Operating Instructions
3
Remove upper steering column cover (3)
Risk of fracturing! Do not scratch the
steering wheel.
Only as of VIN A145273, X708319:
Loosen clips on the side and front. Gently
squeeze the cover together and pull out
between the steering wheel and instrument
panel.
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Page 3494 of 4133

4
Remove side covers (12)
Danger of breaking retaining lugs. Do not
damage instrument panel.
Up to VIN A145272, X708318:
3 covers:
Remove side covers first. Detach center
cover from instrument panel and rotate so
that the retaining lugs point upwards. Then
pull out to the right.
As of VIN A145273, X708319:
2 covers: First
remove the right cover, then the left. It is not
necessary to detach the connectors. The
covers can remain attached to the wiring
harness.
Long wedge
*115589035900
5
Remove frame (5) of instrument cluster
Lift clips carefully, risk of fracture.
Push the clips (4) outwards (arrow
direction A) and ease the frame down towards
the footwell (arrow direction B) until the top of
the frame disengages.
Installation:
Insert the hooks (6) of the
frame into the bracket (13) and push the
frame upwards until the clips snap into place.
Installation:
Insert the lugs (7) on the
frame into the receptacles (8) on the
instrument cluster.
6
Unscrew screws (9)
7
Remove expanding clips (10)
8
Pull instrument cluster (A1) forwards
9
Unlock, open and pull off connector (11)
10
Remove instrument cluster
Make sure the steering wheel is not
scratched.
Tilt the upper edge of the instrument
cluster towards the steering wheel and move
to the right out of the instrument panel.
11
Install in the reverse order
12
Perform function check
a
Instrument cluster (IC) diagnosis operational
check
AD54.30-P-3000A
Assembly wedge
115 589 03 59 00
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Page 3495 of 4133
AD54.30-P-6000-01GH
Instrument cluster, testing electrical system IC
Model 163
t
A
Scope of test
Measuring instrument/
Test connection
Operation/
Requirement
Specified value
D
Possible cause/
Remedy
1.0Instrument cluster (A1)
Voltage supply,
terminal 30
3 w
(A.3)
A1
cL
11
(A.11)
Ignition:
OFF
Remove A1
Coupling "A" (18-pin)
disconnected
11
-
14 V
D
Fuse f13 in fuse and relay
box F1
D
Cables
Value in order
#
t
1.1
1.1
Voltage supply,
terminal 15
3 w
(A.3)
A1
cL
9
(A.9)
Ignition: ON
11
-
14 V
D
Fuse f22 in fuse and relay
box F1
D
Cables
Value in order
#
t
1.2
1.2
Voltage supply,
terminal 15R
3 w
(A.3)
A1
cL
7
(A.7)
Ignition: ON
11
-
14 V
D
Fuse f10 in fuse and relay
box F1
D
Cables
Value in order
#
D
A1
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Page 3496 of 4133

AD54.30-P-5000GH
Instrument cluster (IC) diagnosis troubleshooting
10.4.97
MODEL
163
Connection and use of test equipment
AD00.00-P-1000AZ
Instrument cluster diagnosis, previous
knowledge
AD54.30-P-2000GH
Explanatory notes on diagnosis
troubleshooting chart IC
AD54.30-P-5000-01GH
Display instruments controlled via CAN
troubleshooting chart IC
AD54.30-P-5000-02A
Display instruments controlled directly,
troubleshooting chart IC
AD54.30-P-5000-03A
Troubleshooting
Complaint
Possible cause
Notes
Remedy/Test step
Instrument cluster (A1) completely inoperative
Voltage supply, instrument cluster (A1)
AD54.30-P-6000-01GH
Malfunction indicator lamps or indicator lamps
inoperative
Voltage supply, instrument cluster (A1)
AD54.30-P-6000-01GH
HHT and instrument cluster cannot
communicate
Cables, instrument cluster (A1)
AD54.30-P-6000-02GH
Low brake fluid level/parking brake indicator
lamp, brake pad wear indicator lamp, ABS
MIL, malfunction indicator lamp (ETS, ASR,
ESP) come on together and speedometer
remains on lower stop.
Traction system control module (N47)
AD42.35-P-1001BZ
RPM counter, engine coolant gauge remain
on the lower stop and the low engine oil level
indicator lamp comes on.
Injection system control module (N3)
AD07.61-P-1000AZ
Low brake fluid level/parking brake indicator
lamp, brake pad wear indicator lamp, low
engine oil level indicator lamp, ABS MIL,
malfunction indicator lamp (ETS, ASR, ESP)
come on together and RPM counter, engine
coolant gauge and speedometer remain on
lower stop.
CAN faulty
AD54.30-P-6000-04GH
AD54.30-P-6000-05GH
Steering lock warning lamp (A1e40) is
continuously illuminated or is inoperative.
Cables,
steering lock switch (S97/1)
AD54.30-P-6000-06GH
Coolant level indicator disrupted
Cables,
Coolant level indicator electronic switch (S41)
Model 163 as of 3.98
AD54.30-P-6000-42GH
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Page 1