bove there is an overboost function which can allow and additional 27 HP on the new C-Class W206 (41 HP on the E 350 W213) for a short period of 30 seconds. This period is limited by the exhaust gas temperature. The result is a linear power delivery almost the same as a naturally aspirated engine and secondly the engine is very economical.

This engine develops 272 HP and 400 Nm in the E 350 (W213) and 258 HP and 400 Nm in the new Mercedes C-Class (W206).

Mercedes M 256 engine

The in-line 6-cylinder M256 engine is part of the same family and operates according to the same principle: a slightly more powerful integrated generator starter, with 22 HP and 250 Nm, powered by a 48V network support the thermal engine at acceleration and the same Borg Warner electric compressor deliovers the overpressure until the exhaust gas flow is sufficient to drive the turbocharger.

This engine is available in two power levels: 367 HP and 500 Nm in the Mercedes S 450 4Matic (W223), E 450 4Matic (W213), GLE 450 4Matic (V167), GLS 450 4Matic (X167), CLS 450 4Matic (C257 ) and GT 43 4Matic (x290) and 435 HP and 520 Nm in S 500 4Matic (W223), AMG GLE 53 4Matic (V167), AMG CLS 53 4Matic (C257) and AMG GT 53 4Matic (W213).