Mercedes-Benz CLK W209 Amplifier Replacement
If the amplifier on your Mercedes-Benz fails, the radio may turn on, but you will not hear from the speakers. Learn how to fix the problem by replacing the amplifier on your Mercedes-Benz.
How to Replace Mercedes-Benz CLK W209 Amplifier
Instructions
Follow this procedure to learn how to replace the radio amplifier on your Mercedes-Benz W209.
- Park the vehicle and make sure to remove the key from the ignition.
- Open the trunk by pressing the turn open button on your key fob. If that doesn’t work, you can manually open the trunk with the emergency key in your keyfob.
- Disconnect the negative battery terminal from the battery.
- Remove the liner on the left side of the trunk.

- Disconnect the wire harnesses from the amplifier. There are two connectors.
Press on the connector, then pull them out to disconnect them.
- Remove both 10mm bolts that secure the amplifier to the vehicle body. Be careful so that the amplifier doesn’t fall.

- Install the new amplifier in reverse order.

It should work if you purchased a used amplifier with the same number, even though programming is recommended.
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The wires harness was damaged. Instead of removing the whole wire harness, which would have taken too long, we cut the damaged part and reconnected a new connector at the end.
Additional photos

We hope you find the Mercedes-Benz CLK W209 Amplifier Replacement guide helpful. Check these troubleshooting and repair guides for more help on your Mercedes-Benz.


Press on the connector, then pull them out to disconnect them.


