Best feature of OM651 Diesel
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Joined: Apr 2014
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ML 320 CDI
Best feature of OM651 Diesel
I havent seen it yet but the best improvement to me is the implementation of the low pressure EGR system on the new Om651 turbo diesel I-4.
http://ae-plus.com/features/daimler-om-651
In the old OM642 - EGR taps from the exhaust manifold and directs it to the intake manifold. The new Om651 takes lower pressure exhaust after the DPF instead. I would imagine because the air is free from soot and also cooler. Hopefully this will reduce any carbon buildup in the intake manifold.
http://ae-plus.com/features/daimler-om-651
In the old OM642 - EGR taps from the exhaust manifold and directs it to the intake manifold. The new Om651 takes lower pressure exhaust after the DPF instead. I would imagine because the air is free from soot and also cooler. Hopefully this will reduce any carbon buildup in the intake manifold.
