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Airbag24

Mercedes-Benz GLS-Class X166 airbag control unit repair

Mercedes-Benz GLS-Class X166 airbag control unit repair at Airbag24

Airbag24 repairs defective airbag control units professionally and affordably. Both private customers and workshops can order without registration and benefit from fast processing, 2 years' statutory liability for defects and plug&play installation.

Airbag24 works with state-of-the-art diagnostic technology and specialised repair processes. Because defective control units often involve only individual components, a professional overhaul can be considerably cheaper than buying new.

Our advantages: no registration required, a direct online ordering process for B2B and B2C customers, express shipping and comprehensive quality testing. The repaired control unit works like a new part.

Repair type

Choose the service that fits your unit.

excluding VAT and shipping

Not sure? Just send us an enquiry or give us a call — we're happy to advise you.

4.8
Google reviews of our shop(200)

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Repair time

Our estimated repair time for this product is about: 3–4 business days

Specifications

Make
Mercedes-Benz
Model
Mercedes-Benz GLS-Klasse
Series
X166 SUV (2015-2019)
Mercedes-Benz GLS-Klasse X166 SUV (2015-2019)
Photo: Mr.choppers · CC BY-SA 3.0 · cropped

Shipping & repair from Germany

Airbag24 repairs your component in Berlin — usually within 3–4 working days.

Standard shipping within Germany is free; we normally return your part by UPS.

You pay for and insure the inbound shipment to us. On explicit request we ship by express — the extra cost is borne by the customer.

If you withdraw from the contract, you bear the cost of returning the item.

Google reviews

4.8
Based on 200 reviewsView all reviews

What is a Mercedes-Benz GLS-Class X166 airbag control unit?

The Mercedes-Benz GLS-Class X166 airbag control unit is the central safety unit in your vehicle, activating all occupant restraint systems in the event of an accident. It precisely monitors all crash sensors, stores relevant crash data, and ensures the prompt and proper operation of all airbag modules and belt tensioners in the vehicle to ensure maximum safety. This sophisticated module is critical to the Supplemental Restraint System (SRS) and coordinates the deployment of driver and front passenger airbags, as well as side airbags. Its function is to continuously monitor the vehicle's sensors to ensure lightning-fast response in an emergency. It is specifically designed for the Mercedes-Benz GLS-Class X166 series (approx. 2013-2019) and is also compatible with related GL and M-Class models that use similar safety systems. After a successful Mercedes-Benz GLS-Class X166 airbag control unit repair, the system is fully operational again and contributes significantly to vehicle safety.

Why is the Mercedes-Benz GLS-Class X166 airbag control unit defective?

A Mercedes-Benz GLS-Class X166 airbag control unit can fail due to internal component failure, power supply disruption, or software errors. Often, an accident causes the control unit to store crash data and then freeze, making a Mercedes-Benz GLS-Class X166 airbag control unit repair unavoidable. Power surges or water ingress can also cause failure. Internal memory errors or communication problems are typical signs of a failure of the airbag control unit. A faulty power supply can also impair the function of this important safety component. After an accident, the module permanently stores crash information, making a reset necessary to restore it to working order. A faulty control unit can activate the airbag warning light and compromise safety, which is why a prompt Mercedes-Benz GLS-Class X166 airbag control unit repair at a specialized workshop is strongly recommended.

Common error codes for Mercedes-Benz GLS-Class X166 airbag control unit repair

When repairing a Mercedes-Benz GLS-Class X166 airbag control unit, certain error codes are important, which directly indicate problems with the control unit itself. These B-codes are read by a professional diagnostics team and identify specific defects such as internal communication or memory errors that are causing failure. Diagnosing these error codes is crucial for determining the exact cause of a problem with the airbag control unit and initiating a targeted repair. It is important to use special Mercedes diagnostic systems for precise evaluation. Here are the most common control unit-specific error codes:
  • B1000 : Control unit communication error → Signal interruption or internal defect in the data transmission.
  • B1001 : Internal memory error in the airbag control unit → Damage to the internal memory or firmware.
  • B1040 : Airbag control unit power supply fault → Interruption or fluctuation in the power supply to the module.
  • B1060 : Airbag module memory internal error → Inconsistent or corrupted data in the module memory.
  • B1100 : Airbag control unit software error → Damage or corruption of the internal control unit software.
  • B1160 : Airbag control unit self-test failed → The module could not successfully complete its internal function test.

What part numbers are available for the Mercedes-Benz GLS-Class X166 airbag control unit repair?

For Mercedes-Benz GLS-Class X166 airbag control unit repairs, only specific OEM part numbers are relevant, ensuring exact compatibility and the highest safety standards. These numbers confirm that the replacement part or module being repaired is original for the X166 series and ensures the proper functioning of the airbag system. Using the correct part number is essential to avoid malfunctions and ensure the full safety of the vehicle after repairs. The following OEM part numbers are validated for the Mercedes-Benz GLS-Class X166 airbag control unit and are suitable for repair or replacement:
  • A1669003803 (Mercedes-Benz Genuine Airbag Control Unit)
  • A1669012201 (Mercedes-Benz original/replacement)
  • A1669027601 (Mercedes-Benz original/replacement)
  • A1669003903 (Mercedes-Benz Genuine Airbag Control Unit)
  • A1669001916 (Mercedes-Benz Genuine Airbag Control Unit)
4.8

Based on 200 reviews

What our customers say

Quick delivery and it works perfect in my Mercedes W203! 👌👌

Michel GroenewegenMichel Groenewegen9 months ago

Very professional handling. Everything worked super fast, the information about the status of the processing was very good.

Automatically translated · Original: German

Lars von GlahnLars von Glahn2 months ago

Had the error SRS Airbag Service urgent on my Volvo C30. At Volvo they could only determine that the error with code CFFF cannot be reset. Proposed solution 865 € for a new module, plus removal and installation and codin…

Automatically translated · Original: German

fb liquifb liqui2 months ago

Fast repair, top, friendly quick contact also for Luxembourg. Gladly again Greetings Serge

Automatically translated · Original: German

Serge BruckSerge Bruck2 months ago

At first sight I had no confidence. But I don't regret it. Repair ordered, calculator sent, within a few days I had the diagnosis and the payment order. As soon as the payment was made my calculator came back in perfect…

Automatically translated · Original: French

Adrian DEGACHEAdrian DEGACHE2 months ago

Everything worked out

Automatically translated · Original: German

Wladimir GartfelWladimir Gartfel2 months ago

All great, removed it myself, brought it in and picked it up 4 days later and installed it.Works again thanks

Automatically translated · Original: German

Rene HoeffgenRene Hoeffgen2 months ago

Everything Top

Automatically translated · Original: German

FrankFrank2 months ago

Fast, simple and uncomplicated

Automatically translated · Original: German

Marvin ÖzdenMarvin Özden2 months ago

This company is top. They answer questions immediately. Despite holidays everything went really fast. Simply a great company.

Automatically translated · Original: German

Horst ReiskeHorst Reiske3 months ago

What should I say normally, 5 stars are too few TOP I am MEGA satisfied. Can only recommend it. Greetings Thomas Umlauf

Automatically translated · Original: German

Thomas UmlaufThomas Umlauf3 months ago

Was easy and worked great!!!

Automatically translated · Original: German

Roger WagnerRoger Wagner3 months ago

Quick delivery and it works perfect in my Mercedes W203! 👌👌

Michel GroenewegenMichel Groenewegen9 months ago
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