Here we dismantled the decorative panel of the combined instrument panel (3) to expose both Phillips head mounting screws (1 and 2).
Multi-pin connector (2) can be removed from the combined instrument panel by pressing the plastic clip high (1).
To remove the rear cover of the combined instrument panel, both TORX screws 2 and 3 must first be loosened. Numbers 1 and 4 indicate two of the four screws that must be loosened in order to unscrew the board.
Removing the rear cover of the combined instrument panel: after loosening the screws, only six plastic clips need to be opened (two of them are shown by numbers «1» And «2»).
Dismantled combined instrument: 1 - decorative panel; 2 – oil temperature indicator; 3 - board with devices; 4 - back cover; 5 - liquid crystal display.
On the left front on the gearbox you can see the tachometer pulse sensor (1). To dismantle the pulse encoder, press the lock down (straight arrow), turn the encoder (curved arrow) and take it out of the gearbox. Lubricate the rubber O-rings with Vaseline during installation.
Removing the combined instrument panel
1. Open the steering wheel adjuster, pull the steering wheel back and press down.
2. Remove the steering wheel (chapter Wheel suspension and steering).
3. Remove the upper cover of the lever switches behind the steering wheel. To do this, loosen the two Phillips head screws at the bottom of the trim on the right and left and remove the top trim.
4. Fold back the decorative panel under the combined instrument panel.
5. Loosen the two Phillips head screws at the bottom of the combined instrument panel.
6. Carefully remove the combined instrument panel from the dashboard.
7. Loosen the latch (press the plastic clip high or release the latches), carefully remove the multi-pin connector.
Tip: When replacing the combined instrument panel, the workshop must transfer the mileage information from the old instrument to the new one. For these purposes, a VAG 1551 computer reader is used. In the same way, if necessary, the fuel tank indicator, fuel consumption indicator and maintenance interval indicator are adjusted.
Replacing indicator lamps in the combined instrument panel
The indicator lamps can be changed from the back of the combined instrument panel without further disassembly. The indicator bulbs in Audi are firmly soldered to their sockets and are only sold as a complete assembly as spare parts. When buying them, consider the color of the cartridges: light bulbs with a power of 1.1 W and 1.2 W are placed with cartridges of different colors. To remove the bulb socket, turn it a quarter of a turn to the left and pull it out.
The same applies to scale lighting. But you should pay attention to the fact that some of these bulbs are equipped with orange caps. Caps are rearranged to new light bulbs.
Faulty combined instrument panel
Unfortunately, Audi only offers the combined instrument panel as a complete replacement. Individual components are not sold, so if it malfunctions, you need to run your hand deep into your pocket.
Anyone who is not afraid of electronics can at least dare to disassemble the combined instrument and inspect the board for obvious defects.
Dismantling the combined instrument panel
1. Remove the rear cover of the combined instrument panel. To do this, loosen the two TORX screws on the left and right and press out the six plastic clips.
2. Unscrew the board (four more TORX screws).
3. Speedometer and tachometer are soldered with connectors; the smaller tool is connected to the larger one in one structural element.
4. Additional instruments for measuring oil temperature and on-board voltage are dismantled separately (hex nut on the back; inserted connectors).
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