Is the OM617 a good engine?
The OM617 was praised for its bulletproof reliability, often exceeding 500,000 miles with routine maintenance. It gained immense popularity in models such as the W123 300D and W126 300SD, particularly in North America, where cars with diesel engines were very scarce. Compared to other Mercedes-Benz engines, such as the M112 and M113, the OM628 engine has a higher rate of engine failure, with approximately 20% of owners reporting issues ReliabilityIndex.The Mercedes OM606 turbodiesel is celebrated for its extraordinary durability and dependability. Its iron-block construction, sturdy internal components, and well-engineered cooling and lubrication systems allow it to withstand harsh conditions and deliver long-term reliability.Produced between 1974-1991, Mercedes-Benz loaded their 300D with a cast iron 3. OM617. A five-cylinder engine to replace the outgoing OM616 quickly garnered a reputation for reliability, with many fleet vehicles approaching 620,000 miles as time passed.The OM613 engine has been a subject of concern for many Mercedes-Benz owners, with some reporting reliability issues as early as 50,000 miles Mercedes-Benz Forum. Compared to other Mercedes-Benz engine models, such as the M112 and M113, the OM613 engine has a higher rate of turbocharger failure and oil leakage MBWorld.
What cars came with the OM617?
While not strictly the first five-cylinder engine ever, the OM617, as used in the Mercedes 300D, was the first five-pot to be used in a production vehicle. Introduced with the W115 Mercedes in 1974, it was a 3. OM616 diesel engine, also available in the W115. The OM613 is a turbocharged straight 6 diesel engine produced by Mercedes-Benz. It is the successor to the OM606 and was replaced by the OM648 engine in 2003.The successor of the OM617 engine family was the newly developed straight-5 diesel automobile engine OM602 from Mercedes-Benz used from 1980s up to 2002.Aside from sturdy body and chassis construction, the real claim to fame for Mercedes’ reliability came from its OM617 3.The OM616 is a 4-cylinder diesel, while the OM617 is a 5-cylinder diesel engine used in the W123. Parts like injectors and fuel pumps differ due to cylinder count and design.
What is the best engine for the OM603?
The ‘best’ OM603 is the 3. Second-best is the earlier 3l engine using the later 3. We won’t be swayed by popular OM642 upgrades, they need to be cost effective. The clear stand out winner would be a remap, pushing power to around 300hp, the engines can cope with figures approaching 400hp, but you should really start looking at internal engine mods at that level.