A1. Combined instrument; e1. Left turn signal indicator; e2. Right turn signal indicator; e3. Reverse light indicator; e4. Fuel gauge indicator light; e5. Battery charge control; e6. Checking the wear of the friction linings of the brake shoes; e7. Checking the level of brake fluid and parking brake system; e8. Instrument cluster lighting; e9. Seat belt warning light; e11. Coolant level control; e12. Oil level control; e13. Checking the water level in the windshield wiper; e14. Monitoring the failure of incandescent lamps; e15. Airbag control; e16. Preheating control; e17. Anti-lock braking system (ABS) control; e21. Indication of the operation of the automatic slip regulation system (ASR); e22. Control of the drive wheel slip regulation system relative to the supporting surface (ASR); e24. Automatic differential lock (ASO) control; e25. Indication of operation of the automatic locking differential (ASD); e26. Engine operation control CHECK ENGINE; e34. EDC Control
1. Remove the instrument panel.
2. If necessary, remove the indicator lamp holders on the back by turning them to the left and replace the bulbs. Mercedes workshops have a special tool for unscrewing the bulb holders, but this can also be done with your fingers or pliers.
3. Replace the lamp only with a lamp of the same wattage and type.
4. Insert the lamp socket and turn it to the right.
5. Mount the instrument panel.
Turn signal switch and windshield wiper switch
Removal
31. Screws; 32. Holder; 33. Casing pipe-shell; S4x1. Plug connector of combination switch; S40x1. Plug connector of the tempomat; S4. Combination switch; S40. Tempomat switch
1. Remove the protective cover under the instrument panel.
2. Remove the steering wheel.
Caution: Observe safety precautions when handling the airbag device.
3. With the front wheels straight, loosen the screws from the contact coil just enough to allow the contact coil to be removed.
Caution! Do not unscrew the screws completely, otherwise the contact spiral will be destroyed and will need to be reinstalled in the middle position.
4. Pull the two plug connections of the contact spiral out of the holder and separate them. Remove the contact spiral.
5. Remove the mounting screws from the combination switch.
6. Remove the holder.
7. Remove the plug connection (S4x1) and release it by moving the bracket (arrow).
8. Only if equipped with a cruise control: Remove and separate the plug connection (S40x1).
9. Remove the casing pipe (33) together with the combination switch and, if necessary, the cruise control switch.
Installation
1. Place the combination switch together with the casing pipe onto the steering shaft.
2. Place and screw the holder on.
3. Lay the connecting lines and secure the wire ends in the reverse order.
4. Place the contact spiral on the steering shaft, laying the connecting wire. Pay attention to the fact that the contact spiral is placed until it stops and that the groove on the contact spiral matches the locking lug on the steering shaft. Tighten the fastening screws tightly. Tie the wire tips and fix them.
5. Install the protective cover under the instrument panel.
6. Install the steering wheel.