Coding · Other Services
Module Coding & Retrofit Coding
Coding changes the settings that are already built into a module — turning on factory features, matching a replacement module to your vehicle’s options, or configuring a retrofit — without rewriting the base software. It’s often the last step that makes a repaired or replaced module work exactly like the original.
- ★ Google reviews
- Component-level repair
- 30-day warranty
- Mail-in across Canada
At a glance
- Service
- Module Coding and Retrofit Coding
- Turnaround
- By appointment
- Warranty
- 30-day warranty after repair
- How
- Mail-in from anywhere in Canada · free quote
Coding Services
- Post-repair and post-replacement coding to match vehicle configuration (VO/FA)
- Feature activation for factory-installed options that are switched off
- Retrofit coding for added equipment and accessories
- Regional and lighting configuration changes
- Clearing configuration faults after a module swap
When Coding Is Needed
- A replacement module is installed and some functions don’t work
- Warning lights stay on after a repair even though the hardware is good
- You added an option or accessory that the car doesn’t recognize
Why Choose ECU Repair Doctor
- Coding done with the repair, so your module returns plug-and-play
- Experience across BMW, Mercedes-Benz, VW/Audi and other makes
- Clear explanation of what will and won’t change before we start
Module Coding and Retrofit Coding: frequently asked questions
How do I send my module in?
Get a free quote by phone, text or the contact form, then pack the module in an anti-static bag with padding and mail it to 76 Sherry Road, Unit H, Scarborough, ON M1L 2J9. Turnaround: by appointment.
Last updated October 2026
Don’t replace it — repair it.
Most failed modules can be repaired for a fraction of the dealer replacement price, and come back cloned to your vehicle so there’s no extra programming visit.