21 July 2016 The 300 24v M104 Engine Written by Dan The M104.980 engine was fitted to the W124 range and the pre-facelift R129s. The engine outputs 231bhp and 270 Nm of torque from the 3.0 unit and was an upgrade from the 12v version, which produces 188bhp and 255... Read More R129, W124 engine, m104, tuning