Upgrade of Diesel Vehicles

Want to gain more power, torque and better MPG for your Jaguar, then look no further as we now are able to offer this at B&W Automotive.

ECU remapping is basically fine tuning the software program that controls your engine management system (ECU). We use bespoke maps that are tailored to your car via our autologic diagnostic machine

Today’s modern engines rely heavily on computer controlled engine management systems. Each engine has an array of sensors which monitor lots of things such as throttle position, crank position, airflow etc. These signals are sent to the Engine Control Unit (ECU), which processes the information received to give the best engine performance for any given driving condition.

You will notice an improvement in power and torque right throughout the rev range, along with the possibility of improved fuel economy. See below for a general idea of average improvements for different engine types:

Diesel (turbo) Remapping a diesel turbo ECU normally sees the greatest gains of any engine type. Typically you will achieve an increase of 25 – 40% power (bhp) and around a 30 – 55% increase in torque depending on your engine specification. The engine response is greatly improved throughout the whole rev range and in all gears. Diesel engines are well known for providing huge amounts of torque and in gear performance. A remapped modern turbo diesel engine has the ability to out perform many petrol engine cars under normal driving conditions.

S-TYPE XJ & XF 2.7tdvi

Standard Performance 200 BHP 314lb ft torque

Re-map 268 BHP 394lb ft torque


X-TYPE 2.0d  

Standard Performance 139 BHP 212lb ft torque

Re-map 169 BHP 260lb ft torque


X-TYPE 2.2d  

Standard Performance 152 BHP 182lb ft torque

Re-map 186BHP 291lb ft torque