While in some of the other Mercedes - Benz
diesels urea injection was added, in the W211 E-Class the Bluetec name was only adopted to prevent confusion in the diesel lineup.
Not exact matches
None of the
diesels currently available in the U.S. use
urea injection — they all pass our current emissions standards without it.
The trucks will be powered by a modified version of the «Hawk» 2.2 - liter in - line four - cylinder
diesel, which will employ exhaust
urea injection to help meet US smog requirements.
That's because like
diesels from Land Rover's European rivals, this engine gets
urea injection, which significantly cleans up NOx emissions — a necessity to meet Europe's ultra strict new Euro 6 pollution standards that have just gone into effect.
That goes for the
diesel, too: it uses
urea injection, which requires a small reservoir to be refilled periodically in order to keep the engine running at its cleanest.
Of course,
urea injection also means adding
diesel exhaust fluid to the system every 10,000 miles.
The intriguing engine is the 350d; this 3.0 - litre turbocharged V6 clean -
diesel (and it is clean, thanks to its
urea injection system) twists out 249 horsepower and, more importantly, 455 lb. - ft.
Additionally, like so many other new
diesels, the EA288 uses
urea injection to reduce NOx particulates.
Part of a renewed
diesel push in North America, the Mercedes
diesel engine was engineered with a
urea -
injection system that helps lower emissions to a level that sees the GLK250 Bluetec adhere to tough BIN5 standards — something that allows it to be sold in all 50 states.
The
diesel is 50 - state legal and of the «clean» variety, meaning it doesn't put out the nasty emissions of past
diesels, but will require
injections of the
urea - based AdBlue fluid throughout its life.
VW does not presently use
urea injection, and one wonders whether GM could have placed the
urea tank borrowed and downsized from its Duramax truck
diesels somewhere other than the spare tire well.
Most of Volkswagen's
diesel competitors opted for
urea -
injection, using an additive called AdBlue contained in a separate reservoir that helps to reduce nitrogen oxide emissions.
Oxides of nitrogen and soot are both lower than in a conventional
diesel without requiring
urea injection.
The new
diesels also have
urea injection, another expense and inconvenience.