Mercedes CLS 500 8v 306
Engine Remapping in Northampton
Mercedes CLS 500 8v 306 in Northampton. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Mercedes CLS 500 8v 306: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+30 bhp · +10%- Standard306 bhp
- Remapped336 bhp
Torque
+50 Nm · +11%- Standard460 Nm
- Remapped510 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
Out of the box the Mercedes CLS 500 8v 306 gives 306 bhp and 460 Nm. Remapped in Northampton, we record 336 bhp and 510 Nm, so 30 bhp and 50 Nm more, or 10% and 11% respectively.
These are indicative figures for a petrol Mercedes CLS in good health. Your own results depend on the condition of the car.
Mercedes CLS 500 8v 306 power and torque after remapping
- Fuel: Petrol
- Standard power: 306 bhp, remapped: 336 bhp (+30 bhp, +10%)
- Standard torque: 460 Nm, remapped: 510 Nm (+50 Nm, +11%)
- Service: stage 1 ECU remap, fully dyno tested
Petrol Mercedes CLS: what changes with a remap
Factory petrol calibrations leave margin for poor fuel and hot climates. A remap tunes the ignition, fuelling and boost maps to make better use of that margin, which shows up as livelier throttle response and stronger acceleration.
How the Mercedes CLS 500 8v 306 compares
Ranked by power gain against the other petrol CLS engines (5 in total), the 500 8v 306 is 2nd, exactly the CLS petrol average.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 30 bhp and 50 Nm sits at or above that benchmark.
Remapping your Mercedes CLS in Northampton
Remap Experts Northampton is part of the UK-wide Remap Experts network. We regularly work with drivers in Newport Pagnell, Towcester, Silverstone, Rushden and Market Harborough and nearby areas of the East Midlands.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Leicester, Milton Keynes and Coventry, those neighbouring Remap Experts sites can help too.

Ready for engine remapping on your Mercedes CLS in Northampton?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Mercedes CLS
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide