The BMW 520d is the executive express of choice for thousands of UK commuters, and ECU remapping transforms it from an efficient cruiser into something genuinely exciting to drive — while actually improving its already impressive fuel economy. At Bob's Mechanical Repairs near Perth, we've remapped numerous 5 Series diesels for customers commuting across Scotland. The 520d's 2.0-litre diesel engine shares its architecture with the 320d but is tuned with even more conservative fuel economy settings for the executive market. This means there's substantial untapped performance waiting to be released. A remapped 520d delivers the thrust of a 530d while maintaining the fuel consumption of a smaller engine. For drivers covering 15,000–25,000 miles annually on a mix of motorway and A-road driving, this combination of improved performance and reduced fuel costs is compelling. BMW's B47 and N47 diesel engines are engineered to exceptional standards and are well proven in millions of vehicles worldwide. Our custom calibrations work within the generous design margins BMW's engineers built into these engines, ensuring safe, reliable performance improvements.
Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email [email protected].