Mercedes S-class S 500 388(+05)
ECU Remapping Bristol
Mercedes S-class S 500 388(+05) in Bristol. 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 S-class S 500 388(+05): standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+27 bhp · +7%- Standard388 bhp
- Remapped415 bhp
Torque
+45 Nm · +8%- Standard530 Nm
- Remapped575 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
What does a remap do for the Mercedes S-class S 500 388(+05)? Our figures show power up from 388 to 415 bhp (+7%) and torque up from 530 to 575 Nm (+8%), a stage 1 result you can book in Bristol.
Treat the numbers as a guide: they are stage 1 estimates for a petrol Mercedes S-class in sound condition, and individual cars differ.
Mercedes S-class S 500 388(+05) power and torque after remapping
- Fuel: Petrol
- Standard power: 388 bhp, remapped: 415 bhp (+27 bhp, +7%)
- Standard torque: 530 Nm, remapped: 575 Nm (+45 Nm, +8%)
- Service: stage 1 ECU remap, fully dyno tested
How ECU remapping works on a petrol Mercedes S-class
With a petrol engine the remap works through the ECU's ignition, fuelling and turbo boost tables. Re-calibrating them within safe limits releases power that is already there, rather than adding anything to the engine.
Mercedes S-class S 500 388(+05) against other S-class engines
Among the 16 petrol S-class engines we have figures for, the S 500 388(+05) ranks 7th for power gain, 5 bhp below the S-class petrol average of 32 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 27 bhp and 45 Nm sits at or above that benchmark.
Mercedes S-class performance tuning in Bristol
This is the Bristol site of the Remap Experts network, serving local drivers. We regularly work with drivers in Keynsham, Portishead, Nailsea, Kingswood and Clifton and nearby areas of the South West.
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 Bath, Somerset and Gwent, those neighbouring Remap Experts sites can help too.

Get a quote for your Mercedes S-class S 500 388(+05)
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 S-class
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.
Same model
Other S-class engines
- Mercedes S 300 TD 177(-99)diesel
- Mercedes S 300(-99)petrol
- Mercedes S 320 224 BIS 98(-99)petrol
- Mercedes S 320 224(+99)petrol
- Mercedes S 320 CDI 197(+99)diesel
- Mercedes S 320 CDI 204(+99)diesel
- Mercedes S 350 245(+99)petrol
- Mercedes S 350 TD(-99)diesel
- Mercedes S 400 CDI 279(+99)diesel
- Mercedes S 430 279 BIS 98(-99)petrol
- Mercedes S 430 279(+99)petrol
- Mercedes S 500 306(+99)petrol
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