Mercedes-Benz CL 2004-2005 65 Bi-Turbo 612bhp remap figures
The Mercedes-Benz CL 65 Bi-Turbo 612bhp (2004-2005) is a petrol 6.0L model making 612bhp and 1001Nm as standard. After a Stage 1 ECU remap we expect 665bhp and 1090Nm - up to 53bhp and 89Nm more than stock.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 612 bhp | 665 bhp | +53 bhp |
| Torque | 1001 Nm | 1090 Nm | +89 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 612 bhp | 1001 Nm | |
| Stage 1Maximum software-only performance | 665 bhp | 1090 Nm | +53 bhp +89 Nm |
| Stage 1 EcoPerformance with economy in mind | 652 bhp | 1083 Nm | +40 bhp +82 Nm |
| Eco mapEconomy first | 648 bhp | 1078 Nm | +36 bhp +77 Nm |
Who is the Stage 1 map for?
- Drivers who want a noticeably quicker car from a software-only change, with no new parts.
- Daily drivers who want stronger mid-range pull and a sharper throttle.
- Anyone who wants the biggest gain we list without fitting hardware.
What this means for your CL
On a turbocharged petrol engine a remap adjusts boost, ignition timing and fuelling together, so both power and mid-range torque rise and the car pulls harder out of corners and junctions.
Engine management is by a Bosch ME2.8 unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Mercedes-Benz CL 65 Bi-Turbo 612bhp?
We expect 665bhp and 1090Nm against 612bhp and 1001Nm as standard: up to +53bhp and +89Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Mercedes-Benz CL 65 Bi-Turbo 612bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 652bhp and 1083Nm expected. The Eco map is economy first: 648bhp and 1078Nm. Both still sit above the standard 612bhp and 1001Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Mercedes-Benz CL figures
Other petrol variants
All petrol CL variants · CL 2000-2005 overview · All Mercedes-Benz figures