Fiabilite Moteur V6 Diesel Mercedes

The Mercedes-Benz OM642 is a 3.0-liter turbocharged V6 diesel engine that became easily accessible in 2005.

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The OM642 V6 CDI/BlueTEC engine replaced auto previous five- et six-cylinder OM647 and OM648 inline engines. This MB 3.0L diesel tenir ensemble was offered as année engine option for many cars and vans produced par Mercedes-Benz as well as under auto Dodge, Jeep, Chrysler, and Freightliner brand. Auto OM642 was created in DE30LA, DE30LA red, and LSDE30LA versions.


The nouveau V6 CDI has an aluminum cylinder bloquer with a 72-degree V angle which equipped with cast-in grey iron cylinder liners. In 2014, auto cylinder liners were replaced de the Mercedes-Benz"s "Nanoslide" cylinder mur coating. Engine"s aluminum crankcase weights seulement un 41 kg. The OM642 has a forged steel crankshaft i m sorry rotates in 4 bearings, forged stole lightweight connecting rods, et aluminum pistons with recesses in thé piston crowns for the optimale combustion process. Thé crankpins are offset par 48 degrees. Thé engine also has a balancing tower which counter-rotates at auto same speed oui the crankshaft. Nous top ns each cylinder bank, over there is année aluminum cylinder head with 4 valves per cylinder (24 valves total) and intake and exhaust overhead camshafts (DOHC). Valves room actuated passant par camshafts dessus roller-type camer followers through hydraulic valve clearance compensation. The camshafts space chain-driven. Thé engine offers a double-bush (duplex) time chain. This chain also drives thé balancer shaft and the high-pressure fuel pump.

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Head covers are aluminum ont well.

The OM642 3.0L engine has auto third generation de the common-rail direct injection system. It features piezo-ceramics injectors instead of the previously provided injectors through solenoid valves. Injector nozzles ont eight feet (previous engines had actually seven). The nouveau piezo-injectors allow making up à 5 fuel injection per cycle. The high-pressure pump gives a maximum injection pressure of 1,600 bar (23,000 psi). This diesel engine is turbocharged by a variable Nozzle generator turbocharger (VNT jaune VGT - a variable geometry turbocharger) - Garrett GT2056VK. VNT turbocharger is electronically controlled de ECU (Bosch EDC17) et able à vary the angle of the turbine knives to après the operating status and loads offering the optimal boost pressure. Thé intake système is equipped v a downstream intercooler i m sorry reduces input temperature de up à 95 degrees Celsius.

To accomplish more and more strictement emission regulations, there are deux oxidizing catalytic converters cleaning auto exhaust gases of the nouveau Mercedes 3.0L V6 diesel engine. In addition, thé engine has actually a cooled exhaust gas recirculation système (EGR/AGR) et uses a diesel particulate filter (DPF) venir lower exhaust emissions also further. Some latest vehicles may have BlueTec AdBlue urea injection à la NOx reduction.

In 2017, thé manufacturer released its newest diesel engine - the Mercedes-Benz OM656.

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This inline six-cylinder engine will replace the OM642 V6 in the near future.