Mercedes-Benz 300D (W123)

Guest Article by Aaron Aznar

 The Mercedes W123 series is still the most produced Mercedes-Benz model to date. It was built from 1975 to 1986, and set new standards in vehicle safety. Of the total of 2.7 million vehicles produced, many have survived the passage of time and have been handed over to subsequent generations.

Under the hood you can find the engine OM 617.912. According to enthusiasts the most reliable engine in history. Initially it had 3000 cc divided in five cilinders which could produce 79 hp. In 1979 the engine was modified, the precombustion chamber was updated, the valves were build deeper and the cylinder volume was reduced to 2998 cc. The power and the torque increased up to 87 hp and 172 Nm.

Note: The same engine was installed with turbo chargers on the third version of the infamous C111 instead of the previous Wankel engine. The turbo charged engine had 230 hp and broke nine diesel and gasoline speed records with a top speed of 322 Km/h in 1978 at the Nardò Ring located in the Italian province of Lecce. Continue reading “Mercedes-Benz 300D (W123)”