28 minutes ago, Wino said:

Am I nobody? Or do you just not believe me?

If that was aimed at me are you saying that there are some with one or the other or they all employ both?
Perhaps you'll point me to that comment.

1 minute ago, Urrell said:

If that was aimed at me are you saying that there are some with one or the other or they all employ both?
Perhaps you'll point me to that comment.

No, it was a direct response to Ryeman saying that nobody has said "WHY"

Another one for my ignore list!

 

Frerd

5 hours ago, Urrell said:

 

Are you sure, I was led to believe cars were equipped with one technology or the other?

My work car has scr and has had to have the EGR cooler replaced

RDE test will require more than just SCR.

 

Mercs new unit 

 

The new diesel engine is designed to meet future emissions legislation (RDE – Real Driving Emissions). In contrast to the current NEDC measurement cycle, the WLTP (Worldwide harmonized Light vehicles Test Procedure) cycle is aimed at ensuring that the figures for standard and real-world consumption are close together in future. In addition, it is planned in Europe to introduce a measuring procedure for Real Driving Emissions (RDE). This, too, is actively supported by Mercedes-Benz.

All components of relevance for efficient emissions reduction are installed directly on the engine. Supported by insulation measures and improved catalyst coatings, there is absolutely no need for engine temperature management during cold starting or at low load. In addition to the advantages in terms of emissions, this results in fuel savings, especially on short journeys. Thanks to the near-engine configuration, exhaust aftertreatment has a low heat loss and optimal operating conditions.

Multiway exhaust gas recirculation

The new engine is equipped with multiway exhaust gas recirculation (EGR). This combines cooled high-pressure and low-pressure EGR. It makes it possible to significantly further reduce the untreated emissions from the engine across the entire engine map, with the centre of combustion being optimised for fuel economy.

The exhaust gas from the turbocharger is sent first to a diesel oxidation catalyst. It next passes the downdraft mixer, in which AdBlue® is added by means of a water-cooled dosing module. Thanks to a specially developed mixing area, the AdBlue® evaporates over the shortest possible distance in the exhaust gas stream and is distributed very uniformly on the surface of the downstream sDPF (particulate filter with coating to reduce nitrogen oxides). Positioned behind the sDPF is an SCR catalyst for further catalytic reduction of the nitrogen oxides. Only then does the treated exhaust gas enter the exhaust system.

 

VAG have already said that diesel will be dead for Medium sized vehicles within two vehicle generations so the Yeti 3 may not even have a diesel option.

 

Lee

5 hours ago, g6zru said:

Another one for my ignore list!

 

Frerd

The 'club' has spoken