BMW 4 Series (F3X) 2014> 418d 143bhp remap figures
Thinking of remapping a BMW 4 Series 418d 143bhp? The standard car makes 143bhp and 320Nm; with a Stage 1 remap from our Leicester workshop we expect around 188bhp and 408Nm, up to +45bhp and +88Nm.
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 | 143 bhp | 188 bhp | +45 bhp |
| Torque | 320 Nm | 408 Nm | +88 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 143 bhp | 320 Nm | |
| Stage 1Maximum software-only performance | 188 bhp | 408 Nm | +45 bhp +88 Nm |
| Stage 1 EcoPerformance with economy in mind | 177 bhp | 401 Nm | +34 bhp +81 Nm |
| Eco mapEconomy first | 173 bhp | 397 Nm | +30 bhp +77 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 4 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 EDC17C56. 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 4 Series 418d 143bhp?
We expect 188bhp and 408Nm against 143bhp and 320Nm as standard: up to +45bhp and +88Nm. 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 4 Series 418d 143bhp?
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: 177bhp and 401Nm expected. The Eco map is economy first: 173bhp and 397Nm. Both still sit above the standard 143bhp and 320Nm.
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 4 Series figures
Other diesel variants
- 418d 147bhp 2015>
- 420d 181bhp 2013>
- 420d 187bhp 2015>
- 425d 214bhp 2013>
- 430d 254bhp 2013>
- 435d 308bhp 2013>
All diesel 4 Series (F3X) variants · 4 Series (F3X) 2013> overview · All BMW figures