Mercedes CLS 500 8v 306
Chip Tuning West Midlands
Mercedes CLS 500 8v 306 in West Midlands. 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
The Mercedes CLS 500 8v 306 produces 306 bhp and 460 Nm of torque as standard. After a stage 1 ECU remap in West Midlands, our figures show 336 bhp and 510 Nm: a gain of 30 bhp (10%) and 50 Nm (11%).
Treat the numbers as a guide: they are stage 1 estimates for a petrol Mercedes CLS in sound condition, and individual cars differ.
Mercedes CLS 500 8v 306: remap at a glance
- 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
How chip tuning works on a petrol Mercedes CLS
On a petrol car the ECU controls fuelling, spark timing and any turbo boost. A remap re-calibrates those maps within safe limits, so the car responds more eagerly and pulls harder through the rev range.
Mercedes CLS 500 8v 306 against other CLS engines
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.
Mercedes CLS ECU remapping in West Midlands
Whether you live in West Midlands or nearby, the West Midlands Remap Experts site is your local route to a quote. We regularly work with drivers in Tipton, Willenhall, Wednesfield, Walsall and Stourbridge and nearby areas of the West Midlands.
Every remap is fully dyno tested and comes with a 30 day money back guarantee and a lifetime software warranty. Call 0800 779 7864 for a quote.
If you are closer to Birmingham, Coventry and Worcester, those neighbouring Remap Experts sites can help too.

Ready for chip tuning on your Mercedes CLS in West Midlands?
Send your registration and we will confirm the exact remap, the price and the next available slot.
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