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Repair of the radio, navigation and amplifier Mercedes-Benz GLA X156

In the Mercedes-Benz GLA X156, we service the factory NTG5.1 Audio 20 (Panasonic) unit, in both the navigation and non-navigation versions.

Mercedes-Benz

Mercedes-Benz GLA X156

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Frequently asked questions and answers

Repair of the radio, navigation and amplifiers Mercedes-Benz GLA X156: registration, module shipping and quote.

Do you repair the factory radio, navigation and amplifier in the Mercedes-Benz GLA X156?

Yes – we repair the factory radio, navigation and amplifiers from the Mercedes-Benz GLA X156; originality is identified by the sticker. We do not deal with Android replacements; eligibility and the scope of repair are determined after checking the removed module.

Is it worth repairing rather than replacing a module in the Mercedes-Benz GLA X156?

The decision to repair a Mercedes-Benz GLA X156 depends on the condition of the removed module and the type of fault. Repair makes sense when the fault affects the module's components and the functions can be restored; we assess this after inspection.

How is the repair quote for a Mercedes-Benz GLA X156 module prepared?

Before sending it, provide photos, make, model, year and a description of the symptom, and we will issue an indicative quote based on the photos and description. We confirm the exact price after checking the removed module; repair starts only after your approval.

Do I need to bring the car in, or send the removed Mercedes-Benz GLA X156 module?

You do not need to bring the car in – you send the removed module by courier or deliver it in person to the workshop by appointment. Protect the screen and connectors, place the module in a rigid box, fill the empty spaces and send any extra parts separately.

What should I prepare before registering a Mercedes-Benz GLA X156 module?

When registering it, provide the make, model, year, when the symptom occurs and what happens after a restart, plus a photo of the front and the module sticker. You do not need to know the radio name; we will ask for the part number if needed, and we will give an initial assessment based on the photos.

Repair of the radio, navigation and amplifier Mercedes-Benz GLA X156 covers the factory Mercedes-Benz NTG5.1 Audio 20 (Panasonic) unit, fitted in GLA cars from model years 2015–2019.

Audio 20 unit versions

NTG5.1 Audio 20 is available as a version without navigation and a version with navigation. Which one you have is confirmed by the nameplate sticker with the Panasonic logo and part number on the unit.

What symptoms do we check the unit for?

Audio 20 enquiries mainly concern failure to start:

  • the screen is black and nothing appears,
  • the unit only powers up some time after the car is started, or not at all,
  • when switched on, the logo appears and then it keeps restarting – over and over,
  • there is no sound or picture, and the drive will not take in the disc.

In all these cases, the unit's fan can be heard running. We also repair units with a faulty keyboard, disc-eject button or navigation function.

What determines whether the repair is worthwhile?

The cause of the failure to start is a fault in the internal memory, and the scope of work depends on what the inspection of the removed unit reveals. In your enquiry, provide the car make, model and year, describe what can be seen after switching on the ignition, and attach a photo of the front and the sticker. If the unit has been modified or repaired before, please mention it. After inspection, we confirm the scope of repair and the price. We repair factory modules, not Android replacements.