BHP+20 hp (44%)
Standard
45 hp
Tuned
65 hp
Torque+40 Nm (36%)
Standard
110 Nm
Tuned
150 Nm
Suitability
Excellent (8/10)Gains Profile
BalancedHeadroom
HighSmart City 0.8 CDI 45hp ECU Remapping
Considering an ECU remap for your Smart City 0.8 CDI 45hp? A Stage 1 remap can take this 2002 - 2004 diesel engine from 45 BHP to 65 BHP and from 110 Nm to 150 Nm of torque (turbocharged). This engine scores 8/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Smart City can achieve.
How this engine compares
- 2ndof 3 Smart City engines by power gain
- 14%of the 9,842 engines we hold gain data for see a smaller power increase
- 21%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Smart City 0.8 CDI 45hp is a 0.8L turbocharged diesel engine producing 45 BHP and 110 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 65 BHP and 150 Nm — a gain of around 20 BHP (44%) and 40 Nm (36%).
This engine scores highly for remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as high, based on the percentage gain available from the factory output.
Considerations: Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.. Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
Fuel economy note: economy gains unlikely at full power; depends on driving style.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
!Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.