Audi A6 4B0959655E Airbag ECU Crash Data Reset Service

When an Audi A6 is involved in a collision, the SRS airbag ECU records a crash event in its memory — and that stored data keeps the airbag warning light on permanently, even after bodywork repairs are complete. A standard OBD reader cannot clear it; the module itself needs specialist equipment to wipe the locked crash data before the system will reset and the light will go out. The Vehicle Check provides a dedicated crash data reset service for the Audi A6 airbag ECU carrying part number 4B0959655E, carried out at our Enfield workshop and available to customers across the whole of the UK by tracked mail-in. View the live listing and book online here.

Quick Facts

What Does Crash Data in the Airbag ECU Actually Mean?

The SRS airbag ECU in your Audi A6 is constantly monitoring seatbelt pre-tensioner circuits, side-impact sensors and frontal crash sensors. During a collision — even a relatively minor one that doesn't deploy every airbag — the module logs the event as a hard fault in non-volatile memory. That stored crash record is intentional: it tells anyone reading the car's history that an impact occurred. The side-effect is that the module locks itself into a fault state, the airbag warning light stays illuminated on the dashboard, and the SRS system is effectively disabled until the data is wiped by the right equipment. A generic OBD-II scanner will read the fault but cannot clear it; it takes dedicated SRS programming hardware to overwrite that crash data properly.

Is the Part Number 4B0959655E the Right One for My Audi A6?

Part numbers like 4B0959655E are unit-family designations used across a production run — the exact suffix and variant on your own module label is what matters. Before TVC carries out any work, we confirm the number on your physical unit matches the service specification. If you are unsure, photograph your module label clearly and either send us the image via the contact form or ring us on 0203 489 2610 — we will tell you straight away whether your unit is covered. Do not guess; it takes thirty seconds to check and saves everyone time.

How Does the Mail-In Service Work, Step by Step?

The process is straightforward and designed so you don't need to be near Enfield to use it.

1. Book online — place your order on the product listing page so we know to expect your unit.
2. Remove the ECU — the airbag SRS ECU is typically located under the centre console or beneath the front seats on the Audi A6. If you're not confident doing this yourself, any local garage can remove it in minutes.
3. Package it properly — wrap the module in several layers of bubble wrap, place it inside a sturdy cardboard box or padded envelope, and pad any gaps with crumpled paper so it cannot rattle around. Avoid plastic bags alone — they offer no impact protection.
4. Post with tracking — use Royal Mail Tracked 48, ParcelForce or any courier that provides a tracking number. Keep that number until you receive your unit back. Address it to: Office 13, 25 Mollison Avenue, Enfield, EN3 7NJ.
5. We receive, verify and reset — once your unit arrives we confirm the part number matches, carry out the crash data reset using specialist SRS equipment, and test the module.
6. Free tracked return — your reset module is posted back to you with free tracked return shipping, typically within 3–5 working days of receipt.

Why Does Mail-In Beat Going to a Dealer for This?

Who Carries Out the Work — and Why Does That Matter?

The Vehicle Check is a specialist automotive electronics workshop with extensive hands-on experience across VAG group vehicles, German marques and a wide range of European and Asian manufacturers. Our work covers SRS airbag module crash data reset, a full range of crash data services, DSG and Mercedes mechatronic repair, BCM, BSI and FRM module cloning, and clutch actuator repair. Because we focus entirely on electronics rather than general servicing or bodywork, every job comes to someone who works on these modules day in and day out — not a technician fitting it in between oil changes. That depth of focus is what makes the difference on a job like a crash data reset, where using the wrong equipment or the wrong process can leave the module in a worse state than it arrived.

Important Safety Note Before You Refit the Module

Crash data reset restores the SRS ECU to a functioning state so the airbag system can operate normally again. It does not replace any components that were physically triggered during the collision. Any deployed airbags, fired seat-belt pre-tensioners, or other activated safety components must be replaced by a qualified mechanic before the vehicle is returned to the road. TVC's reset gives the module a clean slate — but physical safety hardware that has fired must be renewed regardless.

Frequently Asked Questions

Ready to Get Your Audi A6 Airbag System Back Online?

The whole process starts with placing your order online. Book the Audi A6 4B0959655E airbag crash data reset service here, then remove your SRS ECU and post it to us at Office 13, 25 Mollison Avenue, Enfield, EN3 7NJ. We'll confirm your part number, carry out the reset and have it back with you — tracked — within 3–5 working days. If you'd rather talk it through first, ring us on 0203 489 2610. We're here to help, not to pressure you into anything.

The Vehicle Check is a UK automotive electronics specialist at Office 13, 25 Mollison Avenue, Enfield, EN3 7NJ, offering nationwide and international mail-in repair and cloning. Call 0203 489 2610. Last updated: 6 November 2026.