Smart CDI 55
Engine Remapping in Portsmouth
Smart CDI 55 in Portsmouth. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Smart CDI 55: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+18 bhp · +33%- Standard55 bhp
- Remapped73 bhp
Torque
+33 Nm · +41%- Standard80 Nm
- Remapped113 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
Out of the box the Smart CDI 55 gives 55 bhp and 80 Nm. Remapped in Portsmouth, we record 73 bhp and 113 Nm, so 18 bhp and 33 Nm more, or 33% and 41% respectively.
These are indicative figures for a diesel Smart 45 in good health. Your own results depend on the condition of the car.
Smart CDI 55: remap at a glance
- Fuel: Diesel
- Standard power: 55 bhp, remapped: 73 bhp (+18 bhp, +33%)
- Standard torque: 80 Nm, remapped: 113 Nm (+33 Nm, +41%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel Smart 45: what changes with a remap
Modern diesels are held back by conservative factory calibrations. A remap updates the fuel and boost maps stored in the ECU, which is why drivers notice stronger acceleration from low revs and less need to change down on hills or when loaded.
Smart 45 engine tuning in Portsmouth
Remap Experts has a dedicated Portsmouth site, so you deal with a local team backed by a national network. We regularly work with drivers in Hayling Island, Winchester, Southsea, Newport and Gosport and nearby areas of the South East.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Southampton, Sussex and Basingstoke, those neighbouring Remap Experts sites can help too.

Get a quote for your Smart CDI 55
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your Smart 45
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
Same model
Other 45 engines
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide