Mercedes AMG Tuning
The Mercedes M156 6.2L V8 engines vary between 457 PS/336 kW for the C63 AMG to 525 PS/386 kW for the C/CLK/R/ML/GL/S/SL/CL/E 63 AMG. At 386 kW the S63 and CL63 produce slightly more power than the S600 and CL600 models (the latter two are powered by 380 kW 5.5-liter twin-turbo V12 engines), while the S600/CL600 engines produce more torque (829 Nm). All M156-engined models use 7G-Tronic automatic transmissions, with the more recent 2009 SL 63 and 2010 E63 models using 7-speed MCT dual-clutch transmissions.
In 2009, AMG developed the M159 engine based on M156 platform as used in SLS AMG. The M156 engines are being replaced by the M157 5.5L V8 Twin-turbo, however the M156 remains in production for certain models such as the C-Class. Unlike the M156 normally aspirated 6.2L V8 developed by AMG, the M157 is based upon the M273 engine, which produces more power and is 25% more fuel efficient.
The 65 models are powered by a variant of the M275 engine. The AMG version has a larger engine displacement (5980cc) with a re-configured twin-turbo and charge-air cooling system.
RENM offers performance tuning for most AMG and Mercedes vehicles, specialising in AMG performance models. All data indicates performance gains achieved with ECU tuning. Tunes with ‘stages’ indicates that gains are achieved in combination with other performance upgrades.
Models
All Mercedes models listed below can be tuned for additional power, increased torque and reduced fuel consumption.
Mercedes C Class
Mercedes CL Class
Mercedes CLS Class
Mercedes E Class
Mercedes G Class
Mercedes GL Class
Mercedes M Class
Mercedes R Class
Mercedes S, SL Class
Mercedes SLR McLaren
Mercedes SL AMG
Mercedes SLS AMG
RENM tuning
Selected models comparing original and tuned power outputs. For tuning data on other Mercedes models, contact RENM performance for more information.
MODEL
ORIGINAL
RENM TUNED
Mercedes SLR 722 stage 2*
650PS / 478kW / 820Nm
700PS / 515kW / 910Nm
Mercedes SLR stage 2*
626PS / 460kW / 780Nm
680PS / 500kW / 870Nm
Mercedes SL65 AMG
612PS / 450kW / 1000Nm
690PS / 507kW / 1100Nm
Mercedes SLS M159 AMG
571PS / 420kW / 650Nm
610PS / 449kW / 685Nm
W209 CLK63 AMG Black**
507PS / 373kW / 630Nm
578PS / 425kW / 675Nm
W204 C63 AMG stage 2**
457PS / 336kW / 600Nm
570PS / 419kW / 690Nm
Mercedes SL500/550 stage 3**
387PS / 285kW / 530Nm
460PS / 343kW / 630Nm
Mercedes W164 ML63 AMG
510PS / 375kW / 630Nm
538PS / 396kW / 660Nm
*Includes upgraded pulley components.
**Includes upgraded exhaust components.

