Introduction The Mercedes-Benz M278, M157 and M152 were 90-degree V8 petrol engines that were introduced in 2010 to replace the M273 and M156 engines. Specifically, M278 referred to the 4.7-litre biturbo V8 engine for Mercedes-Benz vehicles; M157 referred to the 5.5-litre biturbo V8 engine for AMG-badged models; and, M152 referred to the 5.5-litre naturally aspirated […]
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