BMW 3 Series (F3X) 2015> 318i (1.5) 134bhp remap figures
The BMW 3 Series 318i (1.5) 134bhp (2015>) is a petrol 1.5L model making 134bhp and 220Nm as standard. After a Stage 1 ECU remap we expect 180bhp and 279Nm - up to 46bhp and 59Nm more than stock.
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 | 134 bhp | 180 bhp | +46 bhp |
| Torque | 220 Nm | 279 Nm | +59 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 134 bhp | 220 Nm | |
| Stage 1Maximum software-only performance | 180 bhp | 279 Nm | +46 bhp +59 Nm |
| Stage 1 EcoPerformance with economy in mind | 169 bhp | 274 Nm | +35 bhp +54 Nm |
| Eco mapEconomy first | 165 bhp | 271 Nm | +31 bhp +51 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your 3 Series
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
The ECU recorded for this variant is a Bosch MEVD17.2.3. 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 1 questions
How much power does the Stage 1 map give the BMW 3 Series 318i (1.5) 134bhp?
We expect 180bhp and 279Nm against 134bhp and 220Nm as standard: up to +46bhp and +59Nm. 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 318i (1.5) 134bhp?
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: 169bhp and 274Nm expected. The Eco map is economy first: 165bhp and 271Nm. Both still sit above the standard 134bhp and 220Nm.
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 petrol variants
- 316i 134bhp 2012>
- 320i (1.6) 167bhp 2012>
- 320i (B48) 181bhp 2015>
- 328i (N20) 241bhp 2012-2015
- 330i (B48) 248bhp 2015>
- 330e (B48B20A) 252bhp 2015>
- 335i 301bhp 2012>
- 340i 322bhp 2017>
- 3.0 ActiveHybrid 335bhp 2012>
- M3 424bhp 2014>
All petrol 3 Series (F3X) variants · 3 Series (F3X) 2012-2019 overview · All BMW figures