Mercedes-Benz · Airbag control module
A169 820 15 85
Airbag module Reset
Crash data removal for airbag module part number A169 820 15 85. 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 A
Also printed on the label as: 270 810 503 858
Where it lives: Usually in the centre tunnel near the gear selector; on vans, under the dashboard or seats.
Includes free Royal Mail Tracked 48 return postage. Same-day reset once it arrives.
Order mail-in resetNeed it removed and refitted as well? Book a workshop visit instead — £25 deposit, the reset is done while you wait.
How it works
- Order online. Pay securely by card, Apple Pay, Google Pay or Klarna. You get a reference straight away.
- 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.
- Same-day reset. We remove the crash data, clear the codes and bench-test the module on the day it arrives.
- 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 A169 820 15 85
Different suffix letters, same base number. Check the last letters on your label.
| Part number | Vehicle | Price | Order |
|---|---|---|---|
| A1698204185 | Mercedes-Benz B Class A169 | £36 | Order |
| 169 820 13 26 | Mercedes-Benz | £36 | Order |
| 169 820 21 85 | Mercedes-Benz | £36 | Order |
| 169 820 27 26 | Mercedes-Benz | £36 | Order |
| 169 820 40 85 | Mercedes-Benz | £36 | Order |
| 169 820 66 26 | Mercedes-Benz | £36 | Order |
| 169 820 67 26 | Mercedes-Benz | £36 | Order |
| 169 820 77 26 | Mercedes-Benz | £36 | Order |
| 169 820 78 26 | Mercedes-Benz | £48 | Order |
| 169 820 99 26 | Mercedes-Benz | £36 | Order |
Different 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.