Volkswagen Golf/Jetta 2 manual

Instrument panel - dismantling, testing and reassembly
Body electrical systems / Instrument panel - dismantling, testing and reassembly


Dismantling
1 Remove the instrument panel cluster.

2 Remove the relevant instrument (see illustrations) whilst taking particular care not to damage the printed circuit foil.

17.2a Instrument panel unit components Ц type A
17.2a Instrument panel unit components Ц type A

17.2b Instrument panel unit components Ц type B
17.2b Instrument panel unit components Ц type B

Gearchange/consumption indicator 3 If renewing the gearchange/consumption indicator, avoid touching the back of the gauge. Removal necessitates detaching the printed circuit and the vacuum sender unit then undoing the three securing screws (see illustration). Renew the diode (LED) or consumption indicator unit, as necessary.

17.3 Gearchange and fuel indicator unit retaining screws (arrowed)
17.3 Gearchange and fuel indicator unit retaining screws (arrowed)

Clock - normal type
4 When renewing the normal type clock (which incorporates the fuel gauge), it is important to ensure that the correct printed circuit connections are made when refitting (see illustration).

17.4 Normal type clock connections
17.4 Normal type clock connections

1 Earth connection
2 Plus (+) live connection

Clock - digital type
5 The digital type clock is secured by two retaining screws. When removing the clock, take care not to allow the adjuster pins for the hours and minutes to fall out.

LED indicators
6 The warning lamp LED indicators in the lamp housing are positioned as shown (see illustration). When renewing the LEDs, each diode can be pulled free from the retainer plate. Note that one of the connector prongs is wider. This is the negative connection and it is important that it is correctly refitted. If necessary, the diode holder unit can be removed by carefully levering it free from the warning lamp housing .

17.6 LED connections in warning lamp housing
17.6 LED connections in warning lamp housing

K1 Main beam (blue)
K2 Alternator (red)
K3 Oil pressure (red)
K5 Indicators (green)
K48 Gearchange indicator (yellow)

Printed circuit foil
7 If renewing the printed circuit foil, it should be noted that a common type may be supplied for all models. If fitting a new printed circuit foil to the dash insert on models with a normal type clock, it may be necessary to cut off the connector pins used for the digital clock and vice versa for models with the digital clock. Check this with your supplier.

Plug housing
8 To remove the plug housing from the instrument panel insert, use a screwdriver to press the plastic rib on the housing over the engagement lugs and pull the housing with printed circuit in the direction of the arrow (see illustration). The plug housing can be removed from the printed circuit by pressing free the engagement lugs and pulling the housing away from the printed circuit in the direction of the arrow shown (see illustration).

17.8a Plug housing detachment from instrument panel insert
17.8a Plug housing detachment from instrument panel insert

1 Plastic rib
2 Engagement lugs
Pull housing in direction of arrow

17.8b Plug housing removal from printed circuit
17.8b Plug housing removal from printed circuit

1 Engagement lugs
Pull housing in direction of arrow

Tachometer/VDO multi-function indicator
9 If removing the tachometer, first remove the gearshift and fuel consumption indicator then undo the two retaining screws (see illustration) and remove the tachometer, together with the multi-function indicator (printed circuit). The VDO type multi-function indicator can then be removed by undoing the retaining screws, pressing the retaining lugs from the printed circuit and withdrawing the indicator unit (see illustration).

17.9a Tachometer retaining screws (arrowed)
17.9a Tachometer retaining screws (arrowed)

17.9b Multi-function indicator (VDO type) and retaining screws (1)
17.9b Multi-function indicator (VDO type) and retaining screws (1)

Motometer multi-function indicator 10 The Motometer type multi-function indicator is removed in a similar manner to that given for the VDO type indicator (see illustration).

17.10 Multi-function indicator (Motometer type) and retaining screws (1)
17.10 Multi-function indicator (Motometer type) and retaining screws (1)

Component testing
Voltage stabiliser
11 To test the voltage stabiliser, connect a voltmeter between the terminals shown (see illustration) with a 12 volt supply to the remaining terminal. A constant voltage of 10 volts must be registered. If the voltage is above 10.5 volts or below 9.5 volts renew the voltage stabiliser.

17.11 Voltage stabiliser test terminals
17.11 Voltage stabiliser test terminals

Connect a voltmeter between 1 and 2

Fuel gauge
12 The accuracy of the fuel gauge can be checked by draining the fuel tank and then adding exactly 5 litres of fuel. After leaving the ignition switched on for at least two minutes the fuel gauge needle should be level with the upper edge of the red reserve zone. If not, either the fuel gauge or tank unit is faulty.

Printed circuits
13 The individual circuits of the printed circuit foil can be checked for continuity using an ohmmeter and referring to the appropriate wiring diagram.

Reassembly
14 Reassembly of the instrument panel is a reversal of the dismantling procedure.


© 2018 www.vwgolfjetta2.ru. All Rights Reserved.