BMW 1 Series (E8X) 2007-2011 123d 201bhp remap figures
Thinking of remapping a BMW 1 Series 123d 201bhp? The standard car makes 201bhp and 400Nm; with a Stage 1 remap from our Leicester workshop we expect around 268bhp and 465Nm, up to +67bhp and +65Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 201 bhp | 268 bhp | +67 bhp |
| Torque | 400 Nm | 465 Nm | +65 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 201 bhp | 400 Nm | |
| Stage 1Maximum software-only performance | 268 bhp | 465 Nm | +67 bhp +65 Nm |
| Stage 1 EcoPerformance with economy in mind | 251 bhp | 460 Nm | +50 bhp +60 Nm |
| Eco mapEconomy first | 246 bhp | 457 Nm | +45 bhp +57 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your 1 Series
On a diesel the biggest change is normally torque: the remap changes how much fuel and boost the ECU allows across the rev range, so pulling power arrives earlier and holds on longer.
Engine management is by a Bosch EDC17CP02 unit. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the BMW 1 Series 123d 201bhp?
We expect 268bhp and 465Nm against 201bhp and 400Nm as standard: up to +67bhp and +65Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the BMW 1 Series 123d 201bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 251bhp and 460Nm expected. The Eco map is economy first: 246bhp and 457Nm. Both still sit above the standard 201bhp and 400Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More BMW 1 Series figures
Other diesel variants
- 120d 174bhp 2007-2011
- 120d 163bhp 2004-2007
- 118d 140bhp 2007-2011
- 118d 120bhp 2004-2007
- 116d 114bhp 2009-2011
All diesel 1 Series (E8X) variants · 1 Series (E8X) 2004-2011 overview · All BMW figures