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A Stage 1 remap takes the W213 Mercedes-AMG E63 S from 612bhp and 850Nm to around 700bhp and 1,050Nm, and the 571bhp E63 reaches around 700bhp and 950Nm. The earlier W212 with the 5.5 bi-turbo M157 goes from 557 or 585bhp to around 685bhp and 1,100Nm, which is the biggest gain in the family. The naturally aspirated 6.2 in the W211 is a different engine altogether and gains far less, roughly 530bhp from 514bhp, because there is no boost to raise.
Mercedes E63 tuning – What can we do for your car?
The 2017 Mercedes E63S power plant now pushes 604bhp and 850Nm with a new 4WD system to help tame it – It’s also turbocharged and this makes it an ideal candidate for tuning. We’re able to increase power and torque, to bring new levels of performance and truly unlock the car without any risk of damage to engine or transmission components. Power figures around 700BHP are achieved with a mild tune and totally stock hardware!
Mercedes E63 Tuning Development
With any tuning project, someone has to go first. The development cars take a long time to tune, as there’s no pre-existing basemap to work from. We had the car for a few days to allow us to work out what was achievable and perform extensive testing to find the limits and safety margins.
As with any development project, we started by data-logging. After a few runs on the dyno, we noticed that the car makes considerably more power than the manufacturer figures, but this is quite common with German manufactured vehicles. The dyno results showed this engine produced 643bhp and 901Nm – 39bhp & 51Nm up over the manufactures figures.
After several hours on the dyno gathering the required data we removed the ECU. Our development team disassembled the unit, and downloaded the original software from it. We could then set about adjusting various parameters (turbocharger pressure, ignition timing, air fuel ratio and much more) to tune the engine for optimal performance. We then tested the tune on the dyno, datalogged, adjusted & repeated multiple times until we got the desired results.
With the dyno readings looking positive, we then took to the road to see how the car performed. Again, more datalogging to confirm the tune performs as well on the road as it does on the dyno – big numbers on the rollers are meaningless if the car doesn’t drive properly!
Mercedes E63 Tuning Results
Our Stage 1 software on the development car gave figures of 698bhp & 981Nm. We found the car much smoother to drive, and with nearly 1000Nm of torque, it really does pull hard when required. Looking at the logs there appears to be a lot more scope for even more power from these engines, however they will need larger turbochargers to produce more power – the cooling systems on the engine, and the transmission appear to be massively over-engineered from the factory. We found the E63 AMG a very well built car, and one ideally suited to tuning.
Mercedes E63 Tuning Video
Which E63 have you got?
Three genuinely different engines have worn this badge, and they do not respond alike. Working out
which one you have is the first thing we do, because it decides everything that follows.
| Years | Engine | Power | Torque | ECU |
|---|---|---|---|---|
| 2006-2008 | 6.2 V8, naturally aspirated | 514PS | 630Nm | Bosch ME9.7 |
| 2009-2011 | 6.2 V8, naturally aspirated | 525PS | 630Nm | Bosch ME9.7 |
| 2009-2012 | 5.5 V8 biturbo | 525PS | 700Nm | Bosch MED17.7.1 |
| 2013-2016 | 5.5 V8 biturbo | 558PS | 720Nm | Bosch MED17.7.3 |
| 2013-2016 | 5.5 V8 biturbo, S 4Matic | 585PS | 800Nm | Bosch MED17.7.3 |
| 2017 on | 4.0 V8 biturbo, E63 S | 604PS | 850Nm | – |
The 6.2 is the one to be careful about
The 6.2 is naturally aspirated. There is no boost to raise, so software alone
gives a modest improvement – sharper throttle, a cleaner top end, and a gearbox that behaves
itself. It does not produce the kind of numbers you will see quoted for the turbocharged cars. If
someone has promised you a big power figure for a 6.2 from a remap alone, ask them how.
The 5.5 and 4.0 biturbo cars are a different matter entirely. Those respond
properly, because there is boost and fuelling to work with – which is why the 700BHP figure
above is achievable on an E63 S with standard hardware.
Estate and 4Matic
The T-Model estate and the 4Matic cars use the same engines as their saloon and rear-drive
equivalents, so the software side is unchanged. The 4Matic cars simply put the power down better.
GLE 63 and the other 63s
The GLE 63 uses the same 5.5 biturbo at 558PS, and 585PS in S form – so
what applies to the E63 applies to it. The C63, CLS63, S63 and ML63 share much of the same
engineering. Tell us the registration and we will confirm exactly what you have.
Photos from the build
6 photos of this Mercedes in our Maidstone workshop. Tap any to enlarge.
Questions we get asked
Which E63 gains the most from a remap?
The W212 with the 5.5 bi-turbo M157. From 557 or 585bhp it reaches around 685bhp and 1,100Nm, because the factory calibration left a wide margin.
What does the W213 E63 S make?
Around 700bhp and 1,050Nm from a standard 612bhp and 850Nm, on standard hardware.
Is the older 6.2 V8 worth tuning?
Not much, and we would rather say so before you book. The naturally aspirated M156 goes from 514bhp to around 530bhp, because the gain comes from timing and throttle mapping only.
Does the gearbox cope with the extra torque?
The MCT and the nine speed both have torque limits that matter at these outputs. On the higher output cars we tune the box alongside the engine rather than leave it fighting the map.
