What a mobile Stage 1 remap on a B9 Audi A4 190 TDI looks like on a Mickleover driveway: health check, baseline log, the file, the verified result (190→230 bhp, 400→460 Nm) and the price in Derby.
The B9 Audi A4 2.0 TDI is the car we get asked about more than any other in Derby. Mickleover, Littleover, Allestree, Oakwood — the A38 and A50 commuter belt is full of them, and nearly every owner says the same thing: lovely car, but it feels flat below 2,000 rpm and the S tronic hunts between sixth and seventh on the motorway. This is a start-to-finish walkthrough of how a Stage 1 on that exact platform runs on a Mickleover driveway, with the figures and the price, so you know precisely what you're booking.
The 190 PS EA288 is the sweet spot of the range — the same block, turbo and injectors as the 150, with a slightly braver factory map. Audi quotes 190 bhp and 400 Nm. Paired with the DL382 S tronic, it's a superb long-distance car that's been deliberately softened for emissions and warranty margin. That margin is exactly what a Stage 1 recovers.
Everything starts with a WhatsApp of the registration. From that we confirm the engine code, ECU type (Bosch EDC17C74 or MD1CS004 depending on year) and whether it's an OBD or bench read, then send a fixed price. For a B9 A4 190 TDI in Derby that's £300–£350 for the engine remap, and £280–£450 if you add the S tronic TCU calibration. No call-out fee for DE3 or anywhere else in Derby. The price we send is the price you pay.
We park on the drive, pop the bonnet and plug in. Before any file is touched the car gets a full-system scan plus a live-data baseline on a short loop — for Mickleover that's usually out along Uttoxeter Road and back via the A38 slip. On the A4 we're specifically watching DPF soot and ash load, the AdBlue/NOx sensor status, EGR cooler behaviour, requested-vs-actual boost and the S tronic adaptation values. If anything is off — a lazy NOx sensor is the usual suspect on these — we tell you then, quote the fix separately, and don't write a remap over a fault.
The factory calibration is read from the ECU and archived to our secure store against your VIN. This matters more than most people realise: it means the car can be returned to completely standard in about 30 minutes, any time — before a dealer visit, before a lease return, before you sell. Most B9 A4s are OBD-readable; later MD1 units need a short bench read, which still happens on your drive.
The Stage 1 for the 190 TDI adjusts boost pressure and VNT control, rail pressure and injection duration, torque limiters and the driver's-wish (pedal) map, and re-calibrates smoke correction for UK diesel. Nothing is deleted or disabled — DPF, EGR and AdBlue all keep working exactly as Audi intended, the car stays road-legal and passes MOT emissions as before. Writing takes 15–25 minutes depending on the ECU.
This is the bit that separates a proper remap from a download. We take the car back around the same loop with the logger running and compare it to the baseline: boost tracking the new target cleanly, no over-boost, fuel trims and EGTs in range, no smoke, S tronic shifting without flare. You see the before/after data on the laptop before we leave.
Typical Stage 1 figures on this platform are 230 bhp and 460 Nm — up from 190 and 400. In plain English: the torque arrives from about 1,500 rpm instead of 2,000, the A38 slip-road merge no longer needs a kickdown, sixth and seventh gear actually pull on the M1, and most owners report the same or slightly better MPG on their commute because the engine is working less hard. These are indicative platform figures; every car is logged individually and your own numbers are shown on the day.
If the budget stretches, the DL382 TCU map is the best money you'll spend on this car. Faster shifts, a higher torque limit so the box isn't clamping the new engine map, sharper kickdown and less hunting at 70 mph. It's done in the same visit and typically adds 45 minutes.
Engine Stage 1: £300–£350. Optional S tronic TCU: £280–£450. Pre-map health check, original-file archive, logged verification drive and 30-day warranty are included — not extras. Total driveway time: 60–90 minutes for the engine alone, up to two hours with the gearbox. Same pricing for Mickleover, Littleover, Allestree, Chaddesden, Spondon, Chellaston and every DE postcode.
You must tell your insurer; most mainstream UK insurers accept a Stage 1 with a small adjustment and we'll supply a written spec. On manufacturer warranty: a dealer can detect a remap, so if the car is still under Audi warranty we'll talk you through returning it to stock before any dealer visit — that's exactly why the original file is archived.
WhatsApp or call 07523 386312 with your registration and postcode, or use the booking form. You'll get a fixed price for your exact car and the next available Derby slot — usually within the week, Saturday mornings included.
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