BMW 1 Series (E8X) 2004-2007 120d 163bhp remap figures
Stock, this 2004-2007 BMW 1 Series diesel (2.0L) produces 163bhp and 340Nm. Our expected figures for a Stage 1 remap are 217bhp and 433Nm, an expected gain of up to 54bhp and 93Nm.
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 | 163 bhp | 217 bhp | +54 bhp |
| Torque | 340 Nm | 433 Nm | +93 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 163 bhp | 340 Nm | |
| Stage 1Maximum software-only performance | 217 bhp | 433 Nm | +54 bhp +93 Nm |
| Stage 1 EcoPerformance with economy in mind | 204 bhp | 426 Nm | +41 bhp +86 Nm |
| Eco mapEconomy first | 199 bhp | 421 Nm | +36 bhp +81 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 EDC16C35 unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 120d 163bhp?
We expect 217bhp and 433Nm against 163bhp and 340Nm as standard: up to +54bhp and +93Nm. 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 120d 163bhp?
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: 204bhp and 426Nm expected. The Eco map is economy first: 199bhp and 421Nm. Both still sit above the standard 163bhp and 340Nm.
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
- 118d 140bhp 2007-2011
- 123d 201bhp 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