Stage 1 remapping in Derry
Diesel still leads by a wide margin in the Derry City and Strabane council area: 66.1% of privately kept cars were diesel at the end of June 2026, against 52.7% across Northern Ireland. The number barely moved over the year, from 49,848 to 49,449, a fall of 0.8% against 2.1% for Northern Ireland as a whole. If yours is one of those diesels, Stage 1 remapping adjusts the fuel, boost and timing settings in software, within the engine's limits. The gain you notice is mid-range torque: easier overtaking, firmer pull with a trailer and fewer downshifts on hills. A diesel with a DPF, AdBlue or EGR fault is repaired first.
Vehicles and driving in Derry
- Privately kept cars in Derry City and Strabane
- 74,856: 66% diesel, 28% petrol (council area, June 2026)
- Privately kept vans in Derry City and Strabane
- 8,666, 98% of them diesel
- Drive to work (2021)
- 59.4% of working residents drive a car or van to work (Northern Ireland: 62.7%)
- Long commutes (2021)
- 3.4% travel 30 km or more to work (Northern Ireland: 5.8%)
- Households with two or more cars or vans (2021)
- 26.6% (Northern Ireland: 40.7%)
- Postcode districts
- BT47, BT48
- Main roads
- A2, A6, A5, A514, A515, A40
- Population
- About 85,300 (Derry City and Strabane)
Driving in and around Derry
The nearest service area to Derry, Glenshane Tourist Services on the A6, is 41.2 km away, and the main roads are the A2, A5, A6, A40, A514 and A515. Strabane is 21.9 km off and Limavady 23.6 km. In the 2021 Census, only 6.6% of working residents in the Derry City settlement travelled 10 km or more to work, against 25.6% across Northern Ireland, but that count leaves out work outside Northern Ireland, and the city sits close to the border with County Donegal. Car ownership was lower too: 30.9% of households had no car or van, against 19.5%. The council area had 116 privately kept vans per 1,000 private cars, above Northern Ireland's 98. For a loaded van on a long A6 run, extra torque means fewer downshifts.
Who does the remap in Derry
An independent mobile technician from our national network does the remap at your home or workplace, booked and managed by us. Call with your reg and postcode and we'll tell you straight whether we can cover Derry.
Diagnostics before and after, a remap file matched to your vehicle, repair only: no DPF, EGR or AdBlue deletes.
AdBlue warning on? Repair comes before any remap: AdBlue repair in Derry
Frequently Asked Questions
We check on the phone who can get to you in Derry before anything is booked.
We give you the price on the phone once we know your vehicle.
Stage 1 remapping near Derry
Distances below are in a straight line.
Sources: DfT VEH0105 (privately kept vehicles), Census 2021 (NISRA) for Derry City settlement (taken in lockdown), OpenStreetMap (ODbL) and postcodes.io. Public sector information under the Open Government Licence v3.0. Northern Ireland settlement figures are approximated from small areas; workers exclude full-time students and distance bands count work within Northern Ireland only. Updated 30 October 2026.