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

🧭 Before you start

Fits: Audi A4 B5 (8D)

Don't miss

• Disregard (arrows).
• Exact assignment of 3-position relay carrier in electronics box (plenum chamber) can be found in applicable current flow diagram .

📋 Procedure

1. Operate "“touch-wipe function”" and allow wiper arms to move to vertical position.
2. Switch off ignition and take out ignition key.
3. With ignition switched off, disconnect earth cable at battery .
4. If fitted, detach rubber seal of plenum chamber cover in direction of (arrow).
5. Remove plenum chamber cover (1) to front.

6. Pry cap out of left section of cowl panel grille.
7. Unscrew bolts (arrows).
8. Remove cover for electronics box (plenum chamber).
9. Use screwdriver to carefully pry off retaining strap (arrow).
10. Lay aside engine control unit with connectors (1) and (2) attached. [Note: Disregard (arrows).]
11. Release retaining clip (arrow) and lift 3-position relay carrier out of electronics box.
12. Pull out relays or control units and unclip corresponding sockets for multi-pin connectors. [Note: Exact assignment of 3-position relay carrier in electronics box (plenum chamber) can be found in applicable current flow diagram .]
13. Connect battery. Additional steps required .

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