Mercedes B-Class ECU Remapping & Engine Tuning
We have remap figures for 12 Mercedes B-Class engines across two generations. Petrol engines gain +11% to +24% power and diesels +14% to +52%. The largest bhp increase is on the B Class W246 B200 2.2 CDI: 134 to 205 bhp (+71 bhp, +52%). Two more engines are in development. Book your B-Class in at our Burnley workshop on 01282 779 000, or find a local dealer.
Speak to an ECU Remapping Expert
Contact Us14 Day ECU Remapping Money Back Guarantee!
WarrantyGot a Question about ECU Remapping & Tuning?
View FAQs| Generation | Years | Engines | Power gain | Largest gain |
|---|---|---|---|---|
| B Class W245 | 2005–2011 | 5 | +11% to +28% | +32 bhp (+16%) B200 2.0 Turbo |
| B Class W246 | 2012–2018 | 9 | +17% to +52% | +71 bhp (+52%) B200 2.2 CDI |
| Mercedes B Class W245 | Original BHP | Remapped BHP | Original Torque (Nm) | Remapped Torque (Nm) |
|---|---|---|---|---|
| B170 1.7 Turbo 114 BHP 2005-2011 | 114 | 127 (+11%) | 155 | 177 (+14%) |
| B180 2.0 Cdi 107 BHP 2005-2011 | 107 | 137 (+28%) | 250 | 310 (+24%) |
| B200 2.0 Cdi 138 BHP 2005-2011 | 138 | 158 (+14%) | 190 | 216 (+13%) |
| B200 2.0 Turbo 134 BHP 2005-2011 | In Development | |||
| B200 2.0 Turbo 193 BHP 2005-2011 | 193 | 225 (+16%) | 280 | 340 (+21%) |
| Mercedes B Class W246 | Original BHP | Remapped BHP | Original Torque (Nm) | Remapped Torque (Nm) |
|---|---|---|---|---|
| B160 1.5 CDI 89 BHP 2012 -2018 | 89 | 107 (+20%) | 200 | 239 (+19%) |
| B180 1.5 CDI 107 BHP 2012 -2018 | 107 | 138 (+28%) | 260 | 312 (+20%) |
| B180 1.6 Turbo 121 BHP 2012 -2018 | 121 | 151 (+24%) | 200 | 240 (+20%) |
| B180 1.8 CDI 107 BHP 2012 -2018 | 107 | 152 (+42%) | 200 | 270 (+35%) |
| B200 1.6 Turbo 154 BHP 2012 -2018 | 154 | 181 (+17%) | 250 | 295 (+18%) |
| B200 2.2 CDI 134 BHP 2012 -2018 | 134 | 205 (+52%) | 300 | 360 (+20%) |
| B200 2.2 CDI 168 BHP 2012 -2018 | 168 | 205 (+22%) | 350 | 413 (+18%) |
| B200 1.8 CDI 134 BHP 2012 -2018 | 134 | 166 (+23%) | 300 | 350 (+16%) |
| B250 200 BHP 2012 -2018 | In Development | |||
Frequently asked questions
How much power does a remap add to a Mercedes B-Class?
Petrol engines gain +11% to +24% power and diesels +14% to +52%. The full figures for each engine are in the tables above.
Which B-Class engine gains the most from a remap?
The B Class W246 B200 2.2 CDI gains the most: 134 to 205 bhp (+71 bhp, +52%). Torque rises from 300 to 360 Nm (+20%).
Which B-Class generations do you have remap figures for?
We have figures for two generations: the B Class W245 (2005–2011) and B Class W246 (2012–2018).
Are remaps available for every B-Class engine?
Not yet. Two of the 14 engines listed above are still in development. Call our Burnley workshop on 01282 779 000 for an update.
Where can I get my B-Class remapped?
Book it in at our workshop in Burnley, Lancashire, on 01282 779 000, or find a local remap dealer in our dealer directory.
How we develop your remap
Our remaps are developed in-house at our facility in Lancashire, and cars are developed on our Dynojet 424xLC² dyno. Read more about dyno tuning at BHP UK.
Related:Petrol ECU tuning · Diesel ECU tuning · All Mercedes remaps · Mercedes AMG · Mercedes A-Class · Mercedes C-Class · Mercedes Citan
Our Products & Services
All of our software, programming and tuning services are designed and built in-house and are designed to enhance your vehicle and bring out it’s pure & true performance potential.
© 2011 - 2026 BHP UK. All rights reserved.