Mercedes (M278) (MED17.7.1/MED17.7.3) Tuning
Supported in 7 Mercedes models, 2011-2018.
Mercedes
7 supported (M278) (MED17.7.1/MED17.7.3) applications
Models With the Mercedes (M278) (MED17.7.1/MED17.7.3)
All Supported Mercedes (M278) (MED17.7.1/MED17.7.3) Tunes
About Mercedes (M278) (MED17.7.1/MED17.7.3) tuning
We tune the Mercedes (M278) (MED17.7.1/MED17.7.3) in 7 applications across the CL550, CLS550, E550, GL450, GL550, S550, SL550, from 2011-2018, in gasoline form. Calibrations are written on HP Tuners for your exact hardware and fuel, then proven on our Dynojet 424xLC2 in Jenison, MI. Remote tuning is available for supported applications.
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These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.