Mercedes-Benz switches to the new 6d-ISC-FCM emission standard

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While some manufacturers sets currently on the emission standard 6d-TEMP-EVAP-ISC, which is still larger Spielräum in the case of emissions permits, Mercedes set Benz is already on the changeover to the emission standard 6d-ISC-FCM. Numerous models are already in the hands of the customer, and further models will follow.

During the exhaust emission standard Euro 6d-TEMP-EVAP ISC currently the minimum requirement and the Minimum requirement for the suitability of a new car since 01. September 2019 and for up to 31.12.2020 is sufficient, is the Euro-6d-ISC-FCM standard as a future exhaust gas standard, from 01. January 2021-binding.

At that time, for vehicles with the Euro-standard 6d-TEMP-EVAP therefore, ISC as well as for new vehicles qualified for admission, such as Euro-6d-ISC and Euro-6d-ISC-FCM. 1. January 2021 this applies only to new vehicles that meet the exhaust emission standard 6d-ISC-FCM.

Euro-6d-ISC FCM standard applies starting in the year 2021

The Euro-6d-ISC-FCM standard differs from the other Euro-6d standards for Fuel Consumption Monitoring, i.e., the actual fuel consumption of a vehicle in the focus. A consumption metering device is, the On-Board Fuel Consumption Meters (OBFCM) in the vehicles installed. This is a pure Software, the in internal combustion engines of the fuel – and electric vehicles, the respective energy consumption measures. In the case of Plug-In Hybrid models, both values are recorded, and also paid attention to how often electrically, or how often, with the support of the internal combustion engine is driven. The data will be collected over the entire life of anonymized and must be transferred from 2021, in addition to an EU-commissioned body. The exact procedure to do this is not yet regulated but still.

Both Euro-6d-TEMP-EVAP-ISC, as well as Euro-6d-ISC and 6d-ISC-FCM must also meet the conditions of the test according to the test procedure WLTP and the requirements EVAP and ISC. The standardized measurement procedures, WLTP consists of a combination of the standardized laboratory test cycle WLTC and RDE (Real Driving Emissions).

In the laboratory test initially fixed limits for all emission standards must be adhered to. The subsequent road test RDE aims to test the values from the test bench under real conditions, as these operations fail in the Street is usually higher.

Between the two test-specific deviation cycles tolerances are permitted, which are set for the emissions standard part differs. During the laboratory limit value for nitrogen oxide Nox, 80 mg per km for the Diesel, and 60 mg/km for gasoline for all of the standards are identical, the deviation factor in the RDE Test, with Euro-6d-TEMP-EVAP ISC 2.1, which may be Euro-6d-ISC and 6d-ISC-FCM only at 1.43. The laboratory limit for respirable dust is 4.5 mg/km, and the deviation factor in the RDE Test of 1.5 is for all the standards, in turn, identical.

Area-wide conversion of the model range of Mercedes-Benz

Mercedes-Benz plans to convert its models across the Board, with the change of the year 20/1, which relates to production starting in June of 2020, to cover the area of the Euro-6d-ISC-FCM standard.

With a view to the current range of products meet currently the following models already in advance with Euro-6d-ISC FCM standard:

  • A-class (Compact and sedan) and B-class: all petrol variants, as well as A 200 d 4MATIC and A 220 d 4MATIC
  • CLA (coupe and Shooting Brake): all diesel
  • GLA and GLB: all engines
  • C-class (saloon, estate, Cabriolet and Coupé): all diesel variants
  • E-class (sedan, T-Modell, Cabriolet and Coupé): all engine types from model care (Mopf)
  • GLE / GLE coupe: GLE 350 d, the GLE 400 d, GLE 350 de
  • GLS: GLS 350 d, GLS 400 d

Icon images: Daimler AG


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