BMW 5er E39 525 TDs 143
Engine Remapping in Bristol

BMW 5er E39 525 TDs 143 power and torque after remapping

• Fuel: Diesel
• Standard power: 143 bhp, remapped: 177 bhp (+34 bhp, +24%)
• Standard torque: 280 Nm, remapped: 365 Nm (+85 Nm, +30%)
• Service: stage 1 ECU remap, fully dyno tested

How engine remapping works on a diesel BMW 5 Series

Diesel engines respond strongly to remapping because the ECU controls injection quantity, injection timing and turbo boost pressure. Re-calibrating those maps typically brings the biggest improvement in mid-range torque, which is what you feel when overtaking or towing.

How the BMW 5er E39 525 TDs 143 compares

Of the 17 diesel 5 Series engines in our data, this one comes 10th for power gain, which is 3 bhp below the 5 Series diesel average of 37 bhp.

Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 34 bhp and 85 Nm sits at or above that benchmark.

BMW 5 Series engine tuning in Bristol

Remap Experts Bristol is part of the UK-wide Remap Experts network. We regularly work with drivers in Keynsham, Portishead, Nailsea, Kingswood and Clifton and nearby areas of the South West.

Each remap is dyno tested before it is signed off, and is protected by a 30 day money back guarantee and a lifetime software warranty. Ask for a quote online or by phone.

If you are closer to Bath, Somerset and Gwent, those neighbouring Remap Experts sites can help too.