MUNICH, Germany -- Mercedes-Benz has developed a V-6 diesel engine that will replace its inline five- and inline six-cylinder diesels this spring in Europe.
The first application for the new CDI engine in the United States probably will be in the M-class SUV.
The E320 CDI will keep its inline six-cylinder.
Timing for the U.S. debut has not been set, says a Mercedes spokesman.
With 224 hp and 377 pounds-feet of torque, the V-6 diesel offers increased power. The current inline six-cylinder creates 201 hp and 369 pounds-feet of torque.
In Europe, the engine's first application will be in the C class.
The V-6 diesel is more compact than the inline five- and inline six-cylinder engines it replaces. It is designed to fit in all Mercedes cars except the A- and B-class models. The former inline six-cylinder diesel was too big for installation in the C-class sedan.
The new engine also can be combined with four-wheel-drive technology. That was not possible with Mercedes' inline six engine because of limited space.
All V-6 diesel engines will have four-valve technology and a variable-geometry turbocharger. They feature common-rail technology and piezo-hydraulic injectors. Piezo injectors are faster than traditional solenoid injectors, enabling fuel to be distributed more precisely.
Mercedes also will replace its 4.0-liter V-8 diesel with a new 4.0-liter V-8 based on the new diesel engine architecture. It will debut at the Frankfurt auto show this fall in the S class but likely won't come to the United States immediately.
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