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Mercedes-Benz GLE-Class W166 SUV airbag control unit repair
A 166 900 39 03 · Label
- Label
- Connector
- A 166 900 39 03
- A1669002003
Mercedes-Benz GLE-Class W166 SUV 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.
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Repair type
Which repair matches your fault code?excluding VAT and shipping
Not sure? Just send us an enquiry or give us a call — we're happy to advise you.
4.8Google reviews of our shop(246)
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Your part number isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.
Repair time
Our estimated repair time for this product is about: 3–4 business days
Which repair matches your fault code?
Below your code you can see what needs to be done.
Your error code isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.
Specifications
- Make
- Mercedes-Benz
- Model
- Mercedes-Benz GLE-Class
- Series
- W166 SUV (2015-2018)
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
4.8Based on 246 reviewsView all reviews →
Works like a charm!
Everything went perfectly, I can only recommend it.
Automatically translated · Original: German
From the first phone call, the order processing, to the shipping everything was done very quickly and professionally. Now I still have to send the repaired unit to the Swedish workshop and then hopefully the Honda can finally pass the HU there again (failed because of the red light for the airbag). Today the message came from SWE, the car is running again, the red light is off and the HU was also passed. Once again many thanks for the help in need. Keep it up and maybe word will also spread in SWE that Airbag 24 does great work. Regards Gerd
Automatically translated · Original: German
Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!
Automatically translated · Original: German
Everything worked out great! Read out fault memory, sent it in, received offer and sent in the defective control unit. Got it back repaired after 3 days, price exactly as in the offer. It can't get any better 👍
Automatically translated · Original: German
What is a Mercedes-Benz GLE-Class W166 SUV airbag control unit?
The Mercedes-Benz GLE-Class W166 SUV airbag control unit is the central safety unit in the vehicle, activating all occupant restraint systems such as airbags and seat belt pretensioners in the event of an accident. It continuously receives signals from various sensors, stores relevant crash data, and ensures the proper functioning of the airbag system at all times.
This module is crucial for passive safety and continuously monitors the status of the airbag components. It processes complex algorithms to respond precisely and within seconds in an emergency.
The control unit is robustly constructed and protected against environmental influences and electromagnetic interference. It communicates via the vehicle's internal CAN bus system.
Core functions include storing accident data, controlling the ignition circuits, and providing diagnostic information.
Why is the Mercedes-Benz GLE-Class W166 SUV airbag control unit defective?
The Mercedes-Benz GLE-Class W166 SUV airbag control unit often fails due to internal memory corruption, unstable power supplies, or crash data that needs to be erased after an accident. These defects result in permanently illuminated airbag warning lights and require professional Mercedes-Benz GLE-Class W166 SUV airbag control unit repair.
Internal hardware errors or EEPROM damage can impair the device's functionality. Such internal defects often prevent the system from booting or performing self-diagnostics.
After an impact, the control unit stores specific crash information and locks itself. This lock remains until the data is professionally reset, which requires repair.
Communication errors or problems with the control unit's power supply can also lead to failures. The airbag warning light usually indicates a malfunction.
Common error codes for Mercedes-Benz GLE-Class W166 SUV airbag control unit repair
During a Mercedes-Benz GLE-Class W166 SUV airbag control unit repair, specific B-codes often occur. These directly indicate internal problems with the control unit, not with sensors or peripheral components. These error codes help to precisely diagnose the cause of the defect and initiate the necessary repair.
- B1000 → Control unit communication error → Interruption of the data connection to the control unit.
- B1001 → Internal memory error in the control unit → Defect in the internal data memory of the airbag module.
- B1010 → Control unit self-test failed → The module does not pass the internal function check.
- B1020 → Irregular voltage supply to airbag control unit → Deviations or failures in the power supply.
- B1030 → Internal hardware error in the control unit → Damage to the electronic components of the device.
- B1040 → Crash data memory occupied / cannot be deleted → Accident data permanently block the control unit.
- B1050 → EEPROM error in the control unit → Defect in the non-volatile memory for configuration data.
- B1060 → Error initializing the control unit → The module cannot be started correctly.
Which part numbers are relevant for the Mercedes-Benz GLE-Class W166 SUV airbag control unit repair?
For a precise Mercedes-Benz GLE-Class W166 SUV airbag control unit repair, specific OEM part numbers are crucial to ensure compatibility. The primary and proven compatible original part numbers for the airbag control unit for the Mercedes-Benz GLE-Class W166 SUV series are A1669000220 and A1669003903.
Part number A1669000220 is the most commonly confirmed and primary OEM number for the airbag control unit. It is listed in official Mercedes-Benz catalogs and by authorized dealers.
An alternative OEM part number is A1669003903, which is also used for the airbag control unit in the GLE W166 SUV. Both numbers are directly interchangeable or repairable for the SRS system.
Part number A1669004712 refers to a SAM (Signal Acquisition Module) control unit, which is installed in the vehicle and contributes to the safety network, but is not the actual airbag control unit. It should be considered merely as a supplement.
4.8
Based on 246 reviews
What our customers say
„Ok.“
Zsolt Szabólast week„Works like a charm!“
Leoly4 weeks ago„Everything went perfectly, I can only recommend it.“
Automatically translated · Original: German
ka irgendwasyesterday„From the first phone call, the order processing, to the shipping everything was done very quickly and professionally. Now I still have to send the repaired unit to the Swedish workshop and then hopefully the Honda can fi…“
Automatically translated · Original: German
Gerd Goldammeryesterday„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
Automatically translated · Original: German
Christian Maegerlein3 days ago„Everything worked out great! Read out fault memory, sent it in, received offer and sent in the defective control unit. Got it back repaired after 3 days, price exactly as in the offer. It can't get any better 👍“
Automatically translated · Original: German
Toni Buien4 days ago„Uncomplicated service. Fast and thorough. Can only recommend.“
Automatically translated · Original: German
Abdul KS4 days ago„All great👍“
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Edin Avdic5 days ago„All great, fast delivery. Thanks.“
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Andrej Ivanov6 days ago„100% satisfied. Everything handled very professionally and transparently. Only the return shipping took too long. This was however due to UPS and less to Aairbag24. Thank you very much“
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Dennis Welast week„VAG airbag control unit with error B2000 00 reliably repaired. Price very high in comparison, but everything worked out. No exact protocol of what was carried out, probably just newly flashed“
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Tokeh Tokehlast week„A great shop, even when there are sometimes problems. There are quick responses and very good help. I can only recommend the shop. Thank you very much“
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Sven Wegenerlast week„Ok.“
Zsolt Szabólast week
