Mercedes-Benz B Class (W246) 2011> B180 BlueEFF 120bhp remap figures
Thinking of remapping a Mercedes-Benz B Class B180 BlueEFF 120bhp? The standard car makes 120bhp and 201Nm; with a Stage 2 remap from our Leicester workshop we expect around 190bhp and 297Nm, up to +70bhp and +96Nm.
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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 | 120 bhp | 190 bhp | +70 bhp |
| Torque | 201 Nm | 297 Nm | +96 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 120 bhp | 201 Nm | |
| Stage 2Extra power with supporting parts | 190 bhp | 297 Nm | +70 bhp +96 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 and a less restrictive exhaust, with the engine in good mechanical order. 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 B Class
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in response.
The ECU recorded for this variant is a Bosch MED17.7. 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 2 questions
How much power does the Stage 2 map give the Mercedes-Benz B Class B180 BlueEFF 120bhp?
We expect 190bhp and 297Nm against 120bhp and 201Nm as standard: up to +70bhp and +96Nm. 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 Mercedes-Benz B Class B180 BlueEFF 120bhp?
Stage 2 assumes supporting hardware. For an engine like this that is typically a freer-flowing intake and a less restrictive exhaust, with the engine in good mechanical order. 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.
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