A1, German Car & BMW Bike Specialists

German Car & Bike Specialists

Independent BMW, Mercedes, Audi, VW Service and Parts Centre in Stevenage

Performance and ECO Remaps

Engine Remaps

We offer an unbeatable ECU Remapping / Engine Remap service (for all makes and models of vehicles, not just BMW's). We are powered by Quantum Tuning which are one of the largest vehicle remapping companies in Europe. All our tuning maps are dyno tested by Quantum and backed by their great technical support team and 30-day money-back guarantee.

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What is ECU Remapping?

When a manufacturer develops a new car they have to take into consideration all of the conditions it may be subjected to in all of the regions in which they intend to sell this model. This means instead of just optimising the ECU's program or 'map' to deliver the best performance or the most fuel efficiency, they have to make compromises to the map to take into account these potentially differing operating conditions. These could include sub-standard fuels, extremes in temperature and altitude, differing emission laws and even the possibility that the vehicle may not be serviced regularly and by the manufacturer's recommended instructions.

ECU remapping is taking a read from the ECU's processing chip of the vehicle standard compromised map and adjusting various parameters within the map such as fuel pressure, boost pressure (on turbocharged applications), ignition advance and throttle pedal control, amongst others, to release the actual performance from the engine. It is a completely safe process as it is just giving the engine the performance it should have had in the first place before all the compromises were applied to the original programming. Every machine will have its unique map, and by adjusting this, we can fine-tune the characteristics of the engine; unleashing more power and, in many cases, reducing fuel consumption too.

Quantum Tuning ECU remapping

Benefits of ECU remapping

ECU remapping will not only improve the engine's power and torque figures, but it will also sharpen the throttle response and widen the power band. This will make the power delivery a lot more linear, which in turn will make the vehicle feel a lot livelier to drive and the engine more flexible. Frequently, the vehicle's power output is restricted by the manufacturer for no other reason than to ensure that the vehicle fits into a class to suit fleet buyers. As a driving enthusiast, you do not need or want such restrictions placed upon your vehicle's ECU and its performance. Therefore, you can benefit from the hidden power and torque locked away within your engine management system.

The other main benefit of remapping will be a reduction in fuel consumption. With the extra torque, especially at the bottom of the rev range, you will see fuel-savings, as it will require less throttle input to maintain motorway speeds; you can drive in a higher gear at a slower speed as well as helping significantly when fully laden, towing or on gradients and even in start-stop traffic.

ECU Remapping Benefits for Turbocharged Diesel Engines

Many see the modern Turbocharged Diesel as the future of road car tuning. These engines offer fantastic potential for reliable low-cost tuning without removing any of the appeals of buying and running a turbo diesel-powered vehicle, such as economy, reliability and longevity. 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

Note: London ULEZ rules still apply regardless if you have your vehicle remapped or not.

ECU Remapping Benefits for Turbocharged Petrol Engines

Turbocharged petrol engines have always been regarded as the sports flagship engine for good reason. They boast far higher power & torque figures than a non-turbocharged power plant with similar displacement and are usually fitted to the manufacturer's flagship models. They are also ideal candidates for remapping as the ECU controls the wastegate (turbo boost pressure control). After your ECU upgrade to your turbocharged petrol engine, you will enjoy:

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

Improvements in fuel consumption on petrol engine vehicles are minor and nothing like that achieved by diesel vehicles.

Saving Fuel with ECU Remap?

When we remap a vehicle, especially when fuel saving is the priority, we focus on improving the low-end torque in particular and widening the power band as far as we can. This increase in low-end torque will mean less throttle pedal input is required to maintain cruising speeds when fully laden or on a gradient. It will also mean that the vehicle will be more comfortable in higher gears at slower speeds as well as requiring fewer gear changes overall. If you combine these factors with adjusting your driving style to make the most of the extra low-end torque, you will see an improvement in fuel consumption. This is most effective on turbo-diesel engines, where the savings could be as much as 20%!

Quantum Tuning ECU Remapping

What do you modify in my vehicle?

We do not change any hardware in your vehicle; we just modify the operating parameters in the ECU's program or 'app'. In many cases, the map stored on the ECU's processor can be accessed via the vehicle's onboard diagnostics port (OBD), normally found under the dashboard. In some newer models, the ECU will have to be removed from the car 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 quickly and free of charge as we always keep a copy of the original software as a backup.

Is an ECU Remap Legal?

Yes - there is nothing illegal about remapping an ECU on an engine. However, you should inform your insurance company of any alterations made to the vehicle.

Book an ECU Remap with A1 German Car and Bike Specialists

To book an ECU Remap or learn more about specific power increases and torque increases, please call, drop us an email, or visit us in person.