BMW 3 Series (E9X) 2005-2007 318d 120bhp remap figures
Stock, this 2005-2007 BMW 3 Series diesel (2.0L) produces 120bhp and 281Nm. Our expected figures for a Stage 1 remap are 183bhp and 404Nm, an expected gain of up to 63bhp and 123Nm.
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 | 120 bhp | 183 bhp | +63 bhp |
| Torque | 281 Nm | 404 Nm | +123 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 120 bhp | 281 Nm | |
| Stage 1Maximum software-only performance | 183 bhp | 404 Nm | +63 bhp +123 Nm |
| Stage 1 EcoPerformance with economy in mind | 167 bhp | 394 Nm | +47 bhp +113 Nm |
| Eco mapEconomy first | 162 bhp | 388 Nm | +42 bhp +107 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 3 Series
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
The ECU recorded for this variant is a Bosch EDC16C35. 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 3 Series 318d 120bhp?
We expect 183bhp and 404Nm against 120bhp and 281Nm as standard: up to +63bhp and +123Nm. 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 3 Series 318d 120bhp?
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: 167bhp and 394Nm expected. The Eco map is economy first: 162bhp and 388Nm. Both still sit above the standard 120bhp and 281Nm.
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 3 Series figures
Other diesel variants
- 316d 114bhp 2007-2011
- 318d 140bhp 2007-2011
- 320d 150bhp 2005-2011
- 320d ED 160bhp 2010-2011
- 320d 163bhp 2005-2006
- 320d 174bhp 2007-2009
- 320d ED 181bhp 2010-2011
- 325d 194bhp 2005-2009
- Alpina D3 197bhp 2005-2008
- 325d 201bhp 2010-2011
All diesel 3 Series (E9X) variants · 3 Series (E9X) 2005-2011 overview · All BMW figures