BMW 3 Series (G20) 2019> 318d 147bhp remap figures
The BMW 3 Series 318d 147bhp (2019>) is a diesel 2.0L model making 147bhp and 350Nm as standard. After a Stage 2 ECU remap we expect 245bhp and 480Nm - up to 98bhp and 130Nm more than stock.
Choose your map
Stage 2 remap figures
Stage 2 builds on Stage 1 with supporting hardware - typically a freer-flowing intake and exhaust or downpipe - and a remap written around those parts. Stage 2 is intended for off-road or competition use.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 147 bhp | 245 bhp | +98 bhp |
| Torque | 350 Nm | 480 Nm | +130 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 147 bhp | 350 Nm | |
| Stage 2Extra power with supporting parts | 245 bhp | 480 Nm | +98 bhp +130 Nm |
Who is the Stage 2 map for?
- Owners who have fitted, or plan to fit, supporting parts such as a freer-flowing intake and exhaust.
- Enthusiast, track and competition cars: Stage 2 is intended for off-road or competition use.
- Drivers who accept that a bigger gain means more of the car has to be checked and prepared first.
What Stage 2 needs
Stage 2 is written around supporting hardware. For an engine like this one that is typically a freer-flowing intake, an upgraded intercooler and a less restrictive exhaust. We confirm the exact parts for your car before any work starts.
- A diagnostic check and a read of your ECU come first.
- We look at the condition of the parts that will carry the extra power before we quote.
- Stage 2 is intended for off-road or competition use.
What this means for your 3 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.
This car is listed with a Bosch MD1CS001 engine control unit. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
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 2 questions
How much power does the Stage 2 map give the BMW 3 Series 318d 147bhp?
We expect 245bhp and 480Nm against 147bhp and 350Nm as standard: up to +98bhp and +130Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
What does a Stage 2 remap need on the BMW 3 Series 318d 147bhp?
Stage 2 assumes supporting hardware. For an engine like this that is typically a freer-flowing intake, an upgraded intercooler and a less restrictive exhaust. We confirm the exact parts for your car before any work starts.
Is Stage 2 for road use?
Stage 2 is intended for off-road or competition use. Tell us how the car is used and we will explain what we can and cannot do for it.
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
- 320d MH 163bhp 2019>
- 320d 187bhp 2019>
- 320d MH 187bhp 2019>
- 330d 261bhp 2019>
- 330d MH 282bhp 2019>
- M340d MH 340bhp 2020>
All diesel 3 Series (G20) variants · 3 Series (G20) 2019> overview · All BMW figures