About DS
DS Automobiles became its own brand in 2015, bringing Paris-catwalk style, jewellery-box interiors and lashings of chrome to the Stellantis family. The earlier DS3, DS4 and DS5 started life wearing Citroën badges, but underneath it's all trusty PSA electronics, so the odd moody BSI or 'key not detected' message comes free with the guilloché clock.
AutoECU looks after DS keys, BSI and ECU repairs, coding and diagnostics, from the DS 3 hatch to the DS 7 and DS 9, including the earlier Citroën-badged cars.
DS models & platform codes
UK-market models we commonly work on, with years and the manufacturer's platform / chassis codes. Can't see yours? Ask us, the list isn't exhaustive.
| Model | Years | Code |
|---|---|---|
| DS N°8 | 2025+ | STLA Medium (project code TBC) |
| DS N°4 / DS 4 / DS 4 Cross | 2021+ | D41 |
| DS 4 / DS 4 Crossback | 2015-2018 | B75 |
| DS 3 / DS 3 Crossback / E-Tense | 2019+ | D34 |
| DS 3 / DS 3 Cabrio | 2015-2019 | A55 |
| DS 7 / DS 7 Crossback | 2018+ | X74 |
| DS 9 | 2021-2024 | X83 |
| DS 5 | 2015-2018 | B81 |
Popular DS coding
- Apple CarPlay / Android Auto activation on supported NAC screens
- Daytime running light, auto-lock and mirror fold-on-lock settings
- Reversing camera and parking sensor retrofits
- Towbar electrics coding on DS 7 and DS 4
- Follow-me-home and welcome lighting tweaks
- BSI, ECU and screen replacement coding
- Seatbelt chime and comfort setting adjustments
Common DS electronic repairs
- BSI faults: central locking, lights or wipers doing their own thing, often after water ingress
- Engine ECU repair and cloning for no-start and no-communication faults
- AdBlue / SCR faults and 'starting impossible' countdown warnings
- Hands-free keyless entry and 'key not detected' faults on DS 3 Crossback and DS 7
- Touchscreen and NAC infotainment freezes, reboots and dead screens
- Instrument cluster and digital dash faults
- Electric parking brake faults on DS 7 and DS 4
DS keys & fobs
Remote flip key (HU83 blade)
DS 3 A55, DS 4 B75, DS 5 B81
Same family as Citroën flip keys; worn flip mechanisms and buttons can often be repaired.
Hands-free proximity key
DS 4 B75 and DS 5 (higher trims), DS 7 X74
Keyless entry and start, with an emergency blade hidden inside the fob.
Smart proximity key (latest generation)
DS 3 Crossback D34, DS 4 D41, DS 9 X83, DS N°8
Newer cars with secure gateways need dealer-level tools, which we have.
DS questions
Can I get a spare DS key without going to the dealer?
Yes. Spare and replacement keys for most DS models, including keyless fobs and all-keys-lost jobs, can be cut and programmed on site. Contact AutoECU and we'll come to you.
Is my DS 3 a Citroën or a DS when it comes to keys and parts?
Cars built before 2015 wore Citroën badges, and the DS 3 carried on with the same underpinnings until 2019, so keys and electronics are shared with Citroën. AutoECU can work on both, whatever the badge says.
Why does my DS 7 keep saying the key is not detected?
It can be a tired fob battery, a faulty key, or a problem with the keyless antennas or BSI. AutoECU can diagnose it properly and repair, replace or reprogram whatever is at fault.
Need something done on your DS?
We'll fill in the make for you. Just add your reg and what's wrong.
