Repair of radio, navigation and amplifier Mercedes-Benz C-Class Coupé C204
We accept Comand NTG4.5 from the Mercedes-Benz C-Class Coupé C204 model regardless of factory: Melco, Harman Becker or Matsushita.
Mercedes-Benz Klasa C Coupé C204
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Repair of the Mercedes-Benz C-Class Coupé C204 radio, navigation and amplifier includes, among other things, the Comand NTG4.5 unit used in cars from the W204 family. The unit is sent to the workshop removed from the car.
Three factories, one fault description
NTG4.5 units came from different factories: Melco, Harman Becker and Matsushita. You do not need to find out which one made yours – for the enquiry, what matters is the symptom description plus a photo of the unit and the label with the part number.
Media and update faults
Some NTG4.5 problems concern the medium from which the unit reads data. Signs of a module fault may include:
- a map update that asks for a second DVD and gets stuck,
- a faulty hard drive,
- a damaged SD slot, for example after inserting the card upside down or by force,
- a drive that does not recognise CD/DVDs, ejects them on its own, or jams the disc in the mechanism.
When Comand will not start or is silent
The second group of symptoms is a black screen and no response to the power button, repeated resets to the logo, freezing with no response to the buttons, silence on every source and crackling in the speakers. If the unit has been flooded or exposed to moisture, say so clearly – corrosion progresses quickly. We provide an initial quote based on photos and the description, the exact price after checking the module, and we carry out the repair once you approve it. We do not repair Android replacements.
Frequently asked questions and answers
Repair of Mercedes-Benz C-Class Coupé C204 radios, navigation units and amplifiers: enquiry, module dispatch and quote.
Has the map update in the Mercedes-Benz Klasa C Coupé C204 frozen – is that a fault?
An update that asks for a second disc and then stops is one of the faults these units come to us with. Describe how the update progressed and send photos of the unit.
I’ve damaged the card slot in the radio in a Mercedes-Benz C-Class Coupé C204 model – can you repair it?
Yes, a damaged card slot, for example after inserting the card upside down or by force, is one of the faults we repair in these units. Please describe what happened and attach a photo of the front of the unit.
In the Mercedes-Benz C-Class Coupé C204, the drive ejects discs – can you repair this?
Yes. A drive that does not recognise discs, ejects them on its own, or jams the disc in the mechanism is one of the problems we repair in these units. Please send the removed module to the workshop.
The radio from a Mercedes-Benz C-Class Coupé C204 has been flooded – is it worth sending it in?
Yes, and don’t put it off, because corrosion after flooding progresses quickly. Mention in your enquiry that the unit came into contact with water, and after checking the module we will confirm the scope and cost of the repair.
Do I need to know who made the radio in the Mercedes-Benz C-Class Coupé C204 model?
No. These units came from different factories, but for the enquiry it is enough to give the fault description and attach a photo of the unit and the label. We will determine the rest from that.



