Repair of the radio, navigation and amplifier Mercedes-Benz CLK A209
We also accept Comand NTG2 (Harman Becker) from the Mercedes-Benz CLK A209 when it has an intermittent fault that appears and disappears depending on temperature.
Mercedes-Benz CLK A209
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Repair of the radio, navigation and amplifier in Mercedes-Benz CLK A209 includes, among other things, the Comand NTG2 (Harman Becker) unit fitted in the CLK (W209). It is sent to us once removed from the car.
Fault dependent on temperature
It often starts subtly: the radio begins to freeze, sometimes a reset helps, sometimes the unit returns to normal on its own. The unit may seem to work once the car interior warms up, and stop again after cooling down, for example overnight. If you have noticed this pattern, mention it in your enquiry.
Three forms of the same fault
Over time the symptoms get worse. Signs of a problem in the NTG2 module may include:
- the Mercedes-Benz logo after startup, then the screen goes blank or the radio restarts in a loop,
- random shut-downs while driving, after which stored stations and sound settings are lost,
- a flat battery in the morning because the radio does not go into sleep mode.
The source of these symptoms is hardware-related - damaged connections on the main board - so a reset will not clear them.
Identification and enquiry
The sticker on the casing shows Harman/Becker as the manufacturer and a part number starting with the letter A. Send a photo of the sticker and the front together with a description of the fault, and we will prepare an initial quote. We confirm the exact price after checking the unit, and carry out the repair once you approve it. We do not repair Android replacements.
Frequently asked questions and answers
Repair of the radio, navigation and amplifiers in Mercedes-Benz CLK A209: enquiry, module shipment and quote.
Why does the radio in the Mercedes-Benz CLK A209 work after the car has warmed up, but not again in the morning?
Faulty connections on the main board are sensitive to temperature changes, so the unit may seem to start working again when warm. Describe this pattern in the submission for the removed module.
Will a reset help when the radio in the Mercedes-Benz CLK A209 stops on the logo?
A reset will not fix this fault, because the source is hardware-related and lies on the unit’s main board. The removed unit needs to be checked by the workshop.
Can the radio in the Mercedes-Benz CLK A209 drain the battery?
Yes, a faulty unit may not go to sleep after the ignition is switched off and may draw current while parked. Write in the submission that the battery goes flat overnight.
How can you tell if the unit in the Mercedes-Benz CLK A209 is factory-fitted?
The factory unit has a sticker on the casing with the manufacturer name and part number. Send a photo of it together with a photo of the front, and we will confirm which module it is.
Does the radio in the Mercedes-Benz CLK A209 need to be booked in with the car for repair?
No. Only the removed module comes to the workshop, sent by courier or delivered by prior arrangement. Removal and refitting should be handled by a local workshop.



