There are many engine versions, but some are emergency, and others – according to purists – do not match the character of Italian beauties. Alfa Romeo 2.4 JTD Engineīuying an older Alfa Romeo model is quite a dilemma. I do not recommend this variant, except to enemies. Note – the Grand Cherokee WJ was offered in parallel with the fatal 3.1 diesel also in R5 design. The only development version of this engine used later is the OM647 installed in the newer E-Class (W211) and licensed in SsangYoung cars, and until 2004 also in the Jeep Grand Cherokee. When buying a car with 2.7 CDI, it is worth taking this into account and having a reserve of at least $540-$800 for removing potential breakdowns. Unfortunately, this is often associated with significant wear or high mileage. Unfortunately, it is quite an old 5-cylinder engines – installed in Mercedes until 2006. One of the biggest problems with the 2.7 CDI engine is the cylinder head that is cracking due to overheating.īefore buying, check the fluid level and check this area in the workshop, and take care of the efficiency of the cooling system after purchase.Īpart from this drawback, any minor and larger defects usually resulting from huge mileage should not deter you. What’s more, it is a motor that will successfully undergo the classic regeneration process, although access to used 5-cylinder engines makes such an operation questionable. With a reasonable capacity and relatively low production costs, the motor met the needs of customers who wanted to buy a larger premium car.Ī very valuable feature of this 5-cylinder engines is the interchangeability of many parts with R4 and R6 diesel engines, which were twins.ĭue to high popularity, access to parts is easy, and a large number of replacements reduces the cost of service and repairs.
The 5-cylinder engine is characterized by high torque (often 400 Nm) and low fuel consumption, especially in large cars – SUVs and limousines of the E segment. The engine with the designation OM612 was one of the best modern Mercedes diesel engines with Common Rail injection. Nevertheless, all R5 engines with a capacity of more than 2.0 l in Volvo and Ford cars can be recommended, because even in those models where they were not so durable and reliable (after 2010), they are better than four-cylinder. Over time, Volvo began to use four-cylinder engines more and more in place of the R5 5-cylinder engines.Īlong with the increasing requirements for exhaust emissions, there were more and more solutions to reduce pollution, and at the same time the power was higher and higher, which of course reflected on the legendary durability. The developmental, most powerful version of this engine also found its way under the hood of the Focus RS (305-350 HP), but this is a rare specimen.
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