Mercedes S 300(-99)
Chip Tuning Basingstoke
Mercedes S 300(-99) in Basingstoke. 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 300(-99): standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+25 bhp · +11%- Standard231 bhp
- Remapped256 bhp
Torque
+35 Nm · +11%- Standard310 Nm
- Remapped345 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 S 300(-99) produces 231 bhp and 310 Nm of torque as standard. After a stage 1 ECU remap in Basingstoke, our figures show 256 bhp and 345 Nm: a gain of 25 bhp (11%) and 35 Nm (11%).
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 300(-99) remap figures
- Fuel: Petrol
- Standard power: 231 bhp, remapped: 256 bhp (+25 bhp, +11%)
- Standard torque: 310 Nm, remapped: 345 Nm (+35 Nm, +11%)
- Service: stage 1 ECU remap, fully dyno tested
Petrol Mercedes S-class: 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.
Mercedes S 300(-99) against other S-class engines
Ranked by power gain against the other petrol S-class engines (16 in total), the S 300(-99) is 11th, 7 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 25 bhp and 35 Nm sits below that benchmark.
Book vehicle tuning for your Mercedes S-class in Basingstoke
Drivers in Basingstoke book through the Basingstoke Remap Experts site, one of our local sites across the UK. We regularly work with drivers in Gatwick, Littlehampton, Horsham, Haywards Heath and Crawley and nearby areas of the South East.
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 Berkshire, Southampton and Surrey, those neighbouring Remap Experts sites can help too.

Want these figures on your Mercedes S 300(-99)?
Send your details and a specialist will confirm what is possible for your engine.
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 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
- Mercedes S 55 AMG 612(+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