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Smart - ECU Remap | ECU Tuning

ECU - Engine Control Unit


ECU stands for Engine Control Unit. It is also known as a brain of the car. Within this unit, a processor takes in information from many different sensors in the engine, analyses the information, and then releases the right quantity of fuel for the task providing a good mix of fuel economy, performance and emission control for when the car is pulling away, overtaking, motorways and general day –to-day driving. Information analyzed includes engine temperature, accelerator pedal angle and oxygen content in the burnt exhaust gas. With ECU remapping, Developments can be seen in engine power. It also sharpens throttle reply and widens the cars power band; this makes the car livelier to drive as the vehicle power is restricted by the manufacturer to suit all buyers. Engine remaps offer exciting performance along with benefits in fuel efficiency.

what is ecu
Power & Economy Tuning

what is ecu remapping
Enhanced Driveability


All of these terms are used to describe the same thing. Modern Smart car engines have an electronic management system that controls fuelling. This system is run by the brain of the engine, the ECU (Engine Control Unit). When you put your foot down, the ECU decides how much fuel and air to mix, squirt into the cylinder and ignite. Diesel and petrol engines work a bit differently, but that isn't really important right now. The ECU also controls the boost of the turbo (if you have one).

If you have your Smart engine remapped / chipped / chip tuned or whatever term you want to use then the Smart ECU parameters can be changed, giving more performance — in certain cases more economy — from your engine.

This is done in quite a few different ways. The most common is to connect to the vehicle diagnostic port and re-flash the software on the ECU, with a standard map for the vehicle in question. This does need special equipment. Since it's all done with software, a new map can be uploaded to your vehicle ECU pretty quickly and can often be completed in less than an hour.

The second way, which will get you better results but costs more, is to have a custom remap for your vehicle. The car or van is connected to a laptop, but instead of uploading a one-size-fits-all remap, the parameters for your individual vehicle can be altered. This is usually combined with runs on a dynamometer, so your Smart performance and fuelling is checked and tweaked all the way through the rev range.


Smart ECU remapping offers the potential to drivers to achieve improved performance and efficiency of their engine. Over the years we have been skillfully removing the many programmed compromises built into the engine management system by manufacturers at the production stage. Characteristically, these limitations are included as a safeguard against use of inferior fuels and other examples of engine neglect or even in some cases just to satisfy the buying specifications of fleet buyers. In the case of true driving enthusiasts, these conditions and potential mistreatment scenarios should not apply. With the help of Quantum Tuning you could soon be taking advantage of the extra power and torque currently ‘locked’ within your engine management system. Recalibration of your engines maps must always be done within the specifications of the components.

benefits of ecu remapping
Increase Horsepower & Torque

ecu remapping benefits
20-35% Extra Torque


Smart turbocharged diesel engines are the future of road car tuning. These engines offer a huge opportunity for reliable low cost tuning without removing any of the appeal or principle of buying and running a turbo diesel powered vehicle, such as economy, reliability and longevity. With ever increasing fuel prices, it is reassuring to know that a Quantum Tuning ECU upgrade will not only realize more power from your engine, it will also improve your vehicles fuel economy After your ECU upgrade to your turbocharged diesel engine, you will enjoy

  • Increased horsepower
  • Increased torque
  • Better throttle response
  • Smoother power delivery
  • Improved fuel economy
  • Safer overtaking


Smart turbocharged petrol engines have always been regarded as the sports flagship engine for good reason. They usually boast far higher power & torque figures than there non-turbocharged siblings and are more often than not fitted to the manufacturer's flagship models. They can however, be improved upon further..... After your ECU upgrade to your turbocharged petrol engine, you will enjoy;

After your ECU upgrade to your turbocharged petrol engine, you will enjoy:
  • Increased horsepower
  • Increased torque
  • Better throttle response
  • Smoother power delivery
  • Safer overtaking
ecu remapping benefits
Better Throttle Response

ecu remapping benefits
Safer Overtaking


The normally aspirated petrol engine, whilst not being the easiest of engines to tune, can still benefit from a 10-15% power increase with added torque by careful reprogramming of various engine parameters within the map. Parameters such as the fuel and ignition curves can be fine tuned to give better power & torque output. On some engines the camshaft timing can also be tuned within the map, giving additional improvements.

In many cases, 'after market' tuning items such as free flowing exhausts, high flow air filters and re-profiled camshafts can only be fully utilised by the engine once the necessary adjustments have been made within the ECU. Careful recalibration of the correct maps can unlock the potential of your new engine parts. Further power gains may also be available when a higher octane fuel is used, allowing for more ignition timing.


Spending a lot on your car’s gas or fuel can be rectified by opting for car tuning services. Thus in the present scenario Fuel Economy Tuning is very essential due to the price hike of gas, diesel, petrol.

Thus the process of tuning can saves energy or fuel plus time while also saving money.

saving fuel with ecu remap
10%+ Diesel Fuel Savings

how do you remap
30-Day Money Back Guarantee


We do not change any hardware in your vehicle, we just modify the operating parameters in the ECU’s program or ‘map’. In many cases the map stored on the ECU’s processor can be accessed via the on-board diagnostics port (OBD) in the vehicle, normally found under the dashboard. In some newer models the ECU will have to be removed from the vehicle and the casing opened, our technicians will then use specialist tools to read the original map straight from the processing chip.

The technician will then upload the original map to our map writing team who will adjust the parameters to maximise the performance, fuel economy or a clever blend of both. Depending on the vehicle and ECU type the remapping process can take under an hour and if at any time you wish to return your vehicles ECU to its original default settings, this can be done easily and free of charge as we always keep a copy of the original software as a backup.