BMW 3 Series (E46) 2003-2005 330d 201bhp remap figures
Thinking of remapping a BMW 3 Series 330d 201bhp? The standard car makes 201bhp and 410Nm; with a Stage 1 remap from our Leicester workshop we expect around 300bhp and 577Nm, up to +99bhp and +167Nm.
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 | 300 bhp | +99 bhp |
| Torque | 410 Nm | 577 Nm | +167 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 201 bhp | 410 Nm | |
| Stage 1Maximum software-only performance | 300 bhp | 577 Nm | +99 bhp +167 Nm |
| Stage 1 EcoPerformance with economy in mind | 275 bhp | 564 Nm | +74 bhp +154 Nm |
| Eco mapEconomy first | 267 bhp | 555 Nm | +66 bhp +145 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 EDC16C31. 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 330d 201bhp?
We expect 300bhp and 577Nm against 201bhp and 410Nm as standard: up to +99bhp and +167Nm. 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 330d 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: 275bhp and 564Nm expected. The Eco map is economy first: 267bhp and 555Nm. Both still sit above the standard 201bhp and 410Nm.
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
All diesel 3 Series (E46) variants · 3 Series (E46) 1998-2005 overview · All BMW figures