Antenna Amplifier: Service and Repair

WM 918419 Removing and installing antenna amplifier

Preliminary work

Remove top cover of rear spoiler. => 665819 Removing and installing rear spoiler - section on "removing"

Removing antenna amplifier

CAUTION

Risk of damage to antenna amplifier

-> Remove ignition key and switch off audio system.

Information

- The antenna amplifiers are installed in the rear spoiler.

- Depending on the audio system, the antenna amplifiers installed in the rear spoiler are one for the radio (on the right) and two for the PCM (one on the left and one on the right).





Overview of antenna amplifier

1. Remove the adhesive tape -Arrow A- , then unlock the antenna plugs -Arrows B- and pull them off -Arrow C-.





Removing Antenna plugs

2. Pull off the plugs for the antenna leads -a- and the power supply -b- -Arrows D-.
3. Unscrew fastening screw -Arrow 1- and fastening nut -Arrow 2- , then remove the ground strap -Arrow A-.





Releasing antenna amplifier

Information

- The number of plugs is different for radio and PCM equipment.

4. Undo the fastening screw -Arrow 3- and remove the antenna amplifier -Arrow B-.

Installing antenna amplifier

1. Position antenna amplifier in installation position -Arrow A- and secure with the fastening screw -Arrow 3-.





Securing antenna amplifier

2. Position ground strap in installation position -Arrow B- and screw on the fastening nut -Arrow 2- , but do not tighten.
3. Secure ground lead and ground strap with fastening screw -Arrow 1- , then tighten fastening nut -Arrow 2-.
4. Push antenna leads onto the antenna amplifier -Arrow A- until the locking tabs -Arrows B- are felt to engage.





Connecting antenna plugs

5. Push on the plugs for the antenna leads -a- and the power supply -b- -Arrows C-.
6. Secure leads with adhesive tape -Arrow D-.

Install top cover of rear spoiler. => Removing and installing rear spoiler

Subsequent work

Install top cover of rear spoiler. => 665819 Removing and installing rear spoiler - section on "installing"