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EC Performance›Airbag Module Reset›Mercedes-Benz›A 166 900 20 03

Mercedes-Benz · Airbag control module

A 166 900 20 03
Airbag module Reset

Crash data removal for airbag module part number A 166 900 20 03. We clear the stored crash event, clear the fault codes, test the unit and send it back the same day it arrives — so the original part can go straight back in the car.

Fits: Mercedes-Benz (model not listed)
Also printed on the label as: 0285011135

Where it lives: Usually in the centre tunnel near the gear selector; on vans, under the dashboard or seats.

Mail-in reset price
£78£144

Includes VAT and free Royal Mail Tracked 48 return postage. Same-day reset once it arrives.

Order mail-in reset

Need it removed and refitted as well? Book a workshop visit instead — £50 deposit, the reset is done while you wait.

How it works

  1. Order online. Pay securely by card, Apple Pay, Google Pay or Klarna. You get a reference straight away.
  2. Post the module to us (or drop it in). Wrap it well and put a note in the box with your reference. We recommend a tracked service.
  3. Same-day reset. We remove the crash data, clear the codes and bench-test the module on the day it arrives.
  4. Back to you. Posted back free by Royal Mail Tracked 48, or upgrade to Special Delivery. Refit it, and the airbag light goes out.

Good to know

Reset, not replaced

Your original module goes back in, so there is no coding to the car, no new-part cost and no VIN mismatch.

Healthy modules only

The price is for clearing crash data from a working unit. If yours turns out to have an internal fault or won’t communicate, we contact you before doing anything else.

Bodyshops & garages

Send us the module mid-repair and it’s back before the car is. Call 01792 732 062 for trade volumes.

Same module family

Other Mercedes-Benz numbers like A 166 900 20 03

Different suffix letters, same base number. Check the last letters on your label.

Part numberVehiclePrice
A 166 900 13 11Mercedes-Benz GL£78£144Order
A 166 900 02 20Mercedes-Benz (model not listed)£78£144Order
A 166 900 03 20Mercedes-Benz (model not listed)£78£144Order
A 166 900 12 11Mercedes-Benz (model not listed)£78£144Order
A 166 900 16 09Mercedes-Benz (model not listed)£78£144Order
A 166 900 16 19Mercedes-Benz (model not listed)£78£144Order
A 166 900 17 09Mercedes-Benz (model not listed)£78£144Order
A 166 900 19 16Mercedes-Benz (model not listed)£78£144Order
A 166 900 21 03Mercedes-Benz (model not listed)£78£144Order
A 166 900 26 13Mercedes-Benz (model not listed)£78£144Order
A 166 900 38 03Mercedes-Benz (model not listed)£78£144Order
A 166 900 39 03Mercedes-Benz (model not listed)£78£144Order

Different number?

Check a part number

Type the number from the label on your airbag module — spaces and dashes don’t matter.

See every listed number for this make on the Mercedes-Benz airbag modules page.

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