Mercedes Gl 420 CDI 306
Remapping in Bath
Mercedes Gl 420 CDI 306 in Bath. 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 Gl 420 CDI 306: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+39 bhp · +13%- Standard306 bhp
- Remapped345 bhp
Torque
+85 Nm · +12%- Standard700 Nm
- Remapped785 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 Gl 420 CDI 306 gives 306 bhp and 700 Nm. Remapped in Bath, we record 345 bhp and 785 Nm, so 39 bhp and 85 Nm more, or 13% and 12% respectively.
These are indicative figures for a diesel Mercedes GL-class in good health. Your own results depend on the condition of the car.
Mercedes Gl 420 CDI 306: remap at a glance
- Fuel: Diesel
- Standard power: 306 bhp, remapped: 345 bhp (+39 bhp, +13%)
- Standard torque: 700 Nm, remapped: 785 Nm (+85 Nm, +12%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel Mercedes GL-class: what changes with a remap
The gains from remapping a diesel come from the engine management software rather than new parts: injection, boost and torque limits are re-mapped, which is why torque improves most and why the car often feels easier to drive at lower revs.
For reference, CDI is the Mercedes-Benz name for its common-rail diesel engines.
How the Mercedes Gl 420 CDI 306 compares
Ranked by power gain against the other diesel GL-class engines (2 in total), the Gl 420 CDI 306 is 2nd, 1 bhp below the GL-class diesel average of 40 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 39 bhp and 85 Nm sits at or above that benchmark.
Mercedes GL-class vehicle tuning in Bath
Based around Bath, our team serves local drivers as part of the nationwide Remap Experts network. We regularly work with drivers in Midsomer Norton, Westbury, Swindon, Radstock and Melksham and nearby areas of the South West.
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 Bristol, Somerset and Southampton, those neighbouring Remap Experts sites can help too.
Want these figures on your Mercedes Gl 420 CDI 306?
Tell us about your car and we will come back with a quote by SMS or phone.
Included
What we can do for your Mercedes GL-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 GL-class engines
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