What is a BlueTec diesel engine?
BlueTEC is a trademark name used by Mercedes-Benz to describe its diesel engine exhaust treatment system. In order to keep up with the steadily evolving and increasingly demanding emissions laws of North America and Europe, the company has designed and released two versions of this system.
What is AdBlue and how does it work?
AdBlue is added to your exhaust and mixes with the fumes your car produces. It reacts with nitrogen oxide gas (NOx gas) created by your engine and breaks it down into harmless nitrogen and water vapour. This technology uses AdBlue to break down and reduce harmful emissions.
Are BlueTEC diesel engines reliable?
Mercedes line of Bluetec’ turbocharged diesel engines can be found under the hood of many different Mercedes cars, SUVs and vans. As with any modern engine, these engines require regular service to maintain reliability and can suffer from a variety of problems as they get older.
How does the Mercedes BlueTec exhaust system work?
AdBlue was introduced in the 2008 model year and sold in all 50 states. Exhaust leaves the engine and passes through a Diesel Oxidation Catalyst (DOC), which reduces carbon monoxide and unburned hydrocarbons in the exhaust.
What is the BlueTec system on an e320?
The BLUETEC system has a number of components that “scrub” the exhaust before it is released into the atmosphere. Two variants of the BLUETEC system exist, the NAC+SCR system and the AdBlue system. NAC+SCR is used on the 45-State version of the E320.
What does BlueTEC stand for in Mercedes Benz?
Aaron Gold is a connoisseur of all things automotive, with more than 20 years’ experience as a journalist specializing in the automotive industry. BLUETEC is the brand name Mercedes-Benz applied to their “clean” diesel cars. Let’s take a technical tour of the BLUETEC system from the engine to the tailpipe.
How does the Mercedes BlueTec particulate filter system work?
The AdBlue system houses the DOC and the particulate filter in a single housing. In addition to the NAC catalyst, ammonia is supplied by injecting a fluid called AdBlue into the exhaust upstream of the SCR catalyst. The addition of AdBlue fluid enables the SCR catalyst to reduce NOx emissions to a level even lower than the NAC-SCR system.
What does BlueTEC stand for in diesel engine?
BlueTEC is a trademark name used by Mercedes-Benz to describe its diesel engine exhaust treatment system. In order to keep up with the steadily evolving and increasingly demanding emissions laws of North America and Europe, the company has designed and released two versions of this system.
What kind of exhaust fluid does BlueTEC use?
All Bluetec vehicles use Diesel exhaust fluid, also known as AdBlue. It is stored in an external tank, and it would freeze in cold weather. To prevent this, DEF tank is equipped with an electric heater which can burn out. You will be warned with a ‘check engine’ light if this happens.
What kind of catalytic converter does BlueTEC use?
BlueTec. The technology in BlueTec vehicles includes a selective catalytic reduction (SCR) system that uses diesel exhaust fluid, and a system of NOx adsorbers the automaker calls DeNOx, which uses an oxidizing catalytic converter and diesel particulate filter combined with other NO x reducing systems.
What kind of engine does a Mercedes BlueTec have?
The heart of Mercedes diesel cars like the E320 BLUETEC is a 3.0-liter V6 turbodiesel engine. The engine has four valves per cylinder and each fuel injector is located at the center of the top of the combustion chamber, in the same location where most four-valve gasoline engines locate the spark plug, for optimum fuel burn.