Mercedes-Benz CLS (W219) 2012> 63 AMG 549bhp remap figures
Stock, this 2012> Mercedes-Benz CLS petrol (5.5L) produces 549bhp and 720Nm. Our expected figures for a Stage 1 remap are 645bhp and 819Nm, an expected gain of up to 96bhp and 99Nm.
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 | 549 bhp | 645 bhp | +96 bhp |
| Torque | 720 Nm | 819 Nm | +99 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 549 bhp | 720 Nm | |
| Stage 1Maximum software-only performance | 645 bhp | 819 Nm | +96 bhp +99 Nm |
| Stage 1 EcoPerformance with economy in mind | 621 bhp | 811 Nm | +72 bhp +91 Nm |
| Eco mapEconomy first | 613 bhp | 806 Nm | +64 bhp +86 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your CLS
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in response.
The ECU recorded for this variant is a Bosch MED17.7.3. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
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 CLS 63 AMG 549bhp?
We expect 645bhp and 819Nm against 549bhp and 720Nm as standard: up to +96bhp and +99Nm. 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 CLS 63 AMG 549bhp?
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: 621bhp and 811Nm expected. The Eco map is economy first: 613bhp and 806Nm. Both still sit above the standard 549bhp and 720Nm.
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 CLS figures
Other petrol variants
All petrol CLS (W219) variants · CLS (W219) 2010-2018 overview · All Mercedes-Benz figures