Removing and installing 3-position relay carrier in plenum chamber electronics box — AUDI

🧭 Before you start

Fits: Audi A6 C5 (4B)

Don't miss

• (Arrows) can be ignored.
• Precise assignment of 3-position relay carrier in plenum chamber electronics box can be seen from applicable current flow diagram .

📋 Procedure

1. Remove the wiper arms .
2. ⚠ To stop the cowl panel grille (1) being torn on removal, apply a small quantity of soap solution to the transition between the windscreen and cowl panel grille and pull the cowl panel grille vertically upwards out of the fastening strip, starting at the edge of the windscreen. — Detach the clips (arrows) and remove the cowl panel grille (1).
3. With ignition switched off, disconnect earth wire at battery:
4. Screw out bolts (arrows).
5. Take out cover for electronics box in plenum chamber.

6. Use screwdriver to carefully prise off fastener (arrow).
7. Lay aside engine control unit with connectors (1) and (2) connected. [Note: (Arrows) can be ignored.]
8. Release catch (arrow) and lift off 3-position relay carrier in electronics box.
9. Pull out relays or control units and then unclip corresponding plug-in socket for multi-pin connectors. [Note: Precise assignment of 3-position relay carrier in plenum chamber electronics box can be seen from applicable current flow diagram .]
10. Connect battery. Action to be taken:
11. Adjust the wiper arms .

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