Instrument Cluster With Tachometer or Analog Clock

Instrument Cluster With Tachometer Or Analog Clock







NOTE:
- Troubleshooting
- Checking voltages, LEDs and bulbs with VAG 1598


1 - Trim cover
2 - Tachometer
- Note various versions
- Removing and installing, see Fig. 1.
3 - Speedometer, mechanical
- Removing and installing, see Fig. 1.
- Removing and installing drive cable, see Fig. 13.
- Installing Vehicle Speed Sensor (VSS) -G54-
4 - Coolant temperature gauge and fuel gauge with cut-out for digital clock
4A - Coolant - temperature gauge and fuel gauge
- Removing and installing, see Fig. 1.
5 - Turn signal warning light, right
- Checking LED
- Installing, see Fig. 5
6 - Warning lights, right
- Installation position, see Fig. 3
- Checking LED
- Installing, see Fig. 4
7 - Analog clock
- Removing and installing, see Fig. 1
8 - Analog clock printed circuit
8A - Digital clock printed circuit
- Only replace printed circuit together with housing
- Components on printed circuit Figs. = 9 & 10
9 - Voltage stabilizer with heat sink
- Checking, see Fig. 6
- Removing and installing, see Fig. 7
10 - Housing
- Only replace housing together with printed circuit
11 - Speed Sensor (VSS) -G54- contact plate
12 - Bulb for digital clock
- Black holder
- 12 V / 1.2 W
- Installation position, see Fig. 11
- Removing and installing, see Fig. 12.
13 - Warning lights, left
- Installation position, see Fig. 2
- Installing, see Fig. 4
14 - Turn signal warning light, left
- Installing, see Fig. 5
15 - Instrument cluster lighting conductor
- Connection to printed circuit, see Fig. 10
16 - Instrument cluster light bulb
- Blue holder
- 12 V / 1.2 W
17 - Speed Sensor (VSS) -G54-
- Only with mechanical speedometer

Fig. 1 Instruments, removing and installing







CAUTION!
Before beginning repairs on the electrical system:
- Obtain the anti-theft radio security code.
- Switch the ignition off.
- Disconnect the battery Ground (GND) strap.
- After reconnecting battery, re-code and check operation of anti-theft radio.


1 - Fuel gauge and coolant temperature gauge additionally with digital clock or multi function indicator (MFI)
2 - Mechanical speedometer or electronic speedometer -G21-
3 - Analog clock or tachometer additionally with selector lever position display

- Pull instruments -1 and 3- forward out of housing, and also electronic speedometer (instrument -2-) if equipped.
- For mechanical speedometers -2-, remove securing screws -B- and pull instrument out forward.

Fig. 2 Warning lamps installed position, left







1 - Warning lamp (red) coolant temperature gauge/coolant level indicator, LED
2 - Vacant
3 - Warning lamp (red) for oil pressure, LED
4 - Warning lamp (blue) for main beam, bulb

Fig. 3 Warning lamps installed position, right







1 - Warning lamp (red) for dual circuit and handbrake warning, LED
Warning lamp (red) for seat belt warning system, LED
2 - Warning lamp (red) for Generator, LED
3 - Warning lamp (yellow) for glow plugs, LED
Warning lamp (red) for catalyst monitoring, LED
4 - Vacant

Fig. 4 Warning lamps, installing left/right







The warning lamps can be exchanged after pulling off the upper part of the bulb holder, Qty. 4.


NOTE: When installing LEDs ensure the polarity as illustrated on the upper bulb holder part is observed.


Fig. 5 Turn signal warning lamps, installing







The turn signal warning lamps are to be installed per illustration.
1 - LED
2 - Bulb holder upper part with locking device
3 - Bulb holder lower part


Fig. 6 Voltage stabilizer, checking







NOTE: Only check when fuel and coolant temperature gauges both indicate false readings. Do not disconnect battery ground strap; instrument cluster multi-pin connector remains connected.


Voltage supply, checking
- Remove right-hand instrument.
- Switch on ignition.
- Connect voltmeter between terminal 15 -a- and ground -b-
- Specification: approx. battery voltage
- If specification not achieved, check wiring to instrument cluster using wiring diagram.

Output voltage, checking
- Connect voltmeter between outlet -c- and ground -b-
- Specification: 9.5 - 10.5 V
- If specification not achieved, replace voltage stabilizer.

Fig. 7 Voltage stabilizer, removing and installing (only on mechanical speedometers)







- Remove right instrument.
- Remove securing screw -2- and pull voltage stabilizer -1- downwards and out of contacts -a, b, c-.

NOTE: When installing, ensure that the 3 connections are inserted in contacts -a, b, c- and that the stabilizer is screwed tightly to heat sink -3- (heat dissipation away from housing).

Fig. 8 Speedometer Vehicle Speed (VSS) Sensor -G22-*, removing and installing







- G22- is installed on the transmission housing and provides 4 impulse per rotation.
- Disconnect electrical connection.
- Using appropriate wrench (22 mm), unscrew sensor from transmission housing and remove.

*) Where applicable

Fig. 9 Components on front of printed circuit, with digital clock







1 - Printed circuit
2 - Instrument cluster lighting conductor
3 - Conductor foil connection
4 - Left/right turn signal warning light
5 - Cut-out for voltage stabilizer, which with a heat sink is screwed to instrument cluster housing
6 - Warning lights right
7 - Warning lights left
8 - Digital clock, cannot be replaced separately

Fig. 10 Components on rear of printed circuit, with digital clock







1 - Printed circuit
2 - Oil pressure warning buzzer, cannot be replaced separately
3 - Instrument cluster lighting conductor
4 - Conductor foil connection
5 - 28-pin connector to instrument cluster wiring loom
6 - Digital clock lighting
7 - Holders for warning lights

Fig. 11 Bulbs for odometer, multifunction indicator / digital clock and selector lever position display







1 - Bulb for selector lever position display
2 - Bulb for odometer
3 - Bulb for MFI/digital clock

Fig. 12 Bulbs for odometer, multifunction indicator / digital clock and selector lever position display, removing and installing







- Turn holder until the slot -1- is vertical (unlocked) and remove bulb.
- Insert new bulb and turn holder until slot -1- is horizontal (locked).

Fig. 13 Speedometer drive cable, removing from instrument Cluster







NOTE: The drive cable is split in the engine compartment and engages the instrument cluster.

- Release drive cable plastic coupling on instrument cluster by pressing lugs together, then pull drive cable out of housing.
- Unscrew drive cable coupling -1- and pull drive cable with rubber grommet -2- out of the hole in the dash panel which leads to the passenger compartment.