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Source: ADAC
Euro5 diesel from Volvo, BMW and Mercedes can with SCR systems can be retrofitted. In 2019, the Federal Motor Transport Authority (KBA) approved the retrofitting of the systems for Euro5 diesel vehicles of the brands mentioned. Also Euro5 diesel of the VW Group can be retrofitted with SCR systems. The hardware upgrade is intended for Reduction of nitrogen oxide emissions lead in everyday life.
SCR systems for Euro 5 diesel
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- What do SCR systems have to do
- Are there any exceptions?
- Is it expensive to retrofit?
- Who pays for the retrofitting?
- How is it financed by manufacturers?
- For which car models is it possible to retrofit?
- Which manufacturers do not contribute to the costs?
- Warranty claims and guarantee claims?
- Driving bans and retrofitting
- Installation of the retrofit systems - where does that work?
- Retrofitting SCR systems - is it worth it?
- Promotion of retrofitting
Retrofitting Euro5 diesel - what do SCR systems have to do?
In the so-called Real operation (RDE), a retrofit system must comply with a NOx limit value of 5 mg / km in a temperature range (test) of 30 to 270 ° C. It was also determined that the retrofitting would only result in an additional output of maximum 6% CO2 may lead. Since the amount of CO2 was limited, the consumption of additional fuel should also be limited at the same time. It was also stipulated that the retrofit system must function for at least 100.000 km or five years. The manufacturer must guarantee that. "back
Are there any exceptions?
NOx values may only be reduced by the Factor 2 be higher when the test temperatures are low. The temperatures for this exception must be between 5 and -3 ° C lie. With this exception, reduced NOx values of maximum 540 mg / km are present. Are the test temperatures above 30 ° C (up to 35 ° C) then the factor 1,6 may exist. This corresponds to 432 mg / km NOx. "back
Is it expensive to retrofit?
The prices for retrofitting an SCR system depend on the manufacturer and the vehicle model. The retrofitting of the so-called NeoPlusSystems costs around 2.325 euros (excluding VAT) and is possible for vehicles such as the Audi Q5, the VW Sharan and the Seat Alhambra. However, VAT and installation costs are added to the price mentioned. For retrofitting, the standard exhaust gas components must be replaced. The NeoPlus system is a so-called "add-on retrofitting". The changeover should be possible in an hour. However, the corresponding installation costs must be taken into account.
HJS is another manufacturer of retrofit systems. Delivery and craft vehicles can be used for about 5.800 Euro can be retrofitted. But there are also additional costs such as installation. Retrofitting takes about 8 hours (in the workshop) and can therefore lead to additional costs of 680 euros to 1000 euros. "back
Who pays for the retrofitting?
The conversion has to be done frequently the customer himself numbers. VW and Mercedes were at the so-called Diesel Summit participation in the diesel hardware retrofit program in defined priority regions has been promised. The priority regions were defined by the federal government. The retrofitting of delivery and craft vehicles with a retrofit kit from HJS can be subsidized with government funding. The promotion is supposed to up to 4800 Euro be. "back
How is it financed by manufacturers?
Mercedes wants a "significant amount" of up to 3.000 Pay euros for approved retrofits. The specified amount is to be understood as a gross amount and only applies to retrofits, that have been approved and third party vendors for private owners of diesel Mercedes-Benz cars to the emission standard Euro 5 respectively. These include M1 vans (car certification) and cars. Daimler's offer is only possible for affected Mercedes models from private owners who live in key regions. That means anyone who has a primary residence in a region that was recognized at the 2017 Diesel Summit as Priority region as a private vehicle owner with an affected Mercedes model, the grant can be granted possibly obtained.
The following cities were defined as priority regions at the 2017 Diesel Summit: Munich, Reutlingen, Ludwigsburg, Limburg an der Lahn, Backnang, Darmstadt, Düsseldorf, Düren, Bochum, Kiel, Heilbronn, Hamburg, Frankfurt am Main, Cologne and Stuttgart. Directly adjacent districts can also be considered.
The conditions under which the Daimler grant is granted should be obtained from official bodies. For example, the vehicle has to before October 2nd of 2018 have been approved for the holder. There are exceptions in the form of special conditions for the severely disabled and commuters. There is also one Preliminary examination.
The regions defined by the federal government in 2017 as priority or intensive cities are also for Volkswagen customers Interesting. The VW Group offers a gross participation up to 3.000 Euro for hardware upgrades that have been approved by the KBA. This applies to the intensive cities and directly adjacent districts. The exact conditions under which the financial subsidy is available for owners of VW Group vehicles can be found on the official websites. Volkswagen can also provide information about the requirements, how to apply for and how to obtain financial participation. "back
For which car models is it possible to retrofit?
Euro 5 diesel vehicles from BMW, Volvo and Mercedes received the first retrofit systems in 2019. The retrofit systems for the vehicles of the VW group followed. Production and sales for car retrofit systems were carried out by Dr. Pley (Technology developer from Bamberg) taken over and reinstated. For mobile homes such as Iveco Daily, VW T5, MAN TGL and Fiat Ducato, however, retrofit systems are being developed. The retrofit systems should still to be admitted.
Twintec Baumot is a filter specialist and offers a retrofit offer for Volkswagen and Daimler volume models for key regions. However, no retrofitting requests can currently be accepted, because Twintec Baumot filed for bankruptcy on January 15, 2021 under self-administration. According to the information, restructuring program measures are to be promoted.
Craftsmen's vehicles and municipal vehicles are to be retrofitted by HJS, a filter specialist. There should be a continuous delivery program for retrofitting.
NeoPlus is the name of the retrofit system from Oberland-Mangold, which in 2020 (spring) received the ABE from the KBA for various VW Group Euro 5 diesel cars. The vehicles are equipped with SCR technology ex works and existing exhaust gas cleaning system components are used against more powerful variants exchanged. Audi Q5 2.0 TDI quattro automatic, Seat Alhambra 2.0 TDI and VW Sharan 2.0 TDI (models with EA-189 engine) can currently be retrofitted. "back
Which manufacturers do not contribute to the costs?
Volvo and BMW are among the manufacturers that are not share in the retrofitting costs. Suppliers therefore do not offer any retrofit systems. At VW and Mercedes-Benz, the partner companies can decide for themselves whether Twintec filters are offered as retrofit solutions. The decision of the authorized partner companies is made in own responsibility. According to Dr Pley, the systems can only be installed if the operation goes from the manufacturer to the system installation has been authorized. "back
Warranty claims and guarantee claims?
There is hardly any information about the warranty and guarantee claims that the customer has. The manufacturers of the retrofit systems must guarantee the functionality of the system for 100.000 km or five years. "back
Driving bans and retrofitting
If a retrofit takes place and is entered in the vehicle documents, then the diesel should be from the Driving bans are excluded. The regulations can, however, differ from one municipality to the next. After the conversion, the responsible vehicle authority can enter in field 22 of the registration certificate Part I that the vehicle in question has a retrofit kit which is approved by the KBA. The change in the CO2 value will, however not officially recorded, which is why the vehicle tax is due to the conversion not changes.
Care must be taken that AdBlue (necessary urea) is available in sufficient quantities in the additional tank. Retrofit systems from Dr Pley ensure that the diesel fuel filler flap is automatically locked when the additional AdBlue tank is empty. AdBlue can usually be purchased at any petrol station. There is no external evidence on the vehicle that a SCR cat is available, which is why the vehicle registration document should be carried with the entry as proof. "back
Installation of the retrofit systems - where does that work?
A recognized AU vehicle workshop may carry out the retrofitting. The authorized workshop confirms with a Acceptance certificatethat all parts have been properly installed and are working properly. The acceptance certificate must be presented to the licensing authority.
If the retrofitting was carried out by another party, then a recognized expert or an inspector from motor vehicle traffic must ensure that it has been installed correctly and that it functions properly to confirm. The expert must be officially recognized. A motor vehicle expert can also carry out such a confirmation. The confirmation must be made in accordance with Annex VIIIb StVZO and confirmed on an acceptance certificate in accordance with Annex 3. A confirmation in accordance with Section 13 (3) EG-FGV is also possible through the technical service. "back
Retrofitting SCR systems - is it worth it?
The benefits of retrofitting are not only to be assessed ecologically. It must also Operating costs and retrofitting costs be included in the bill. Running costs are to be included in the form of AdBlue, for example. How much AdBlue is required depends on the outside temperature and driving style. According to ADAC, an average consumption of AdBlue of 0,07 liters per 100 km to around 0,37 liters per 100 km can be expected. An additional cost factor is the additional fuel consumption. He has to go about 6% additional fuel consumption or CO2 emissions can also be calculated. "back
Promotion of retrofitting
The retrofitting of the SCR systems should be made possible for all affected vehicle owners. The range of retrofit sets in the passenger car sector, however, became enormous reduced. The framework conditions for funding and cost sharing should be improved. For purely environmental reasons, so the assumption, the owners of the vehicles will probably not decide on a retrofit. The costs are too high for that.
The KBA refers to the Buying a new car. It would be advisable, however, if the vehicle owners could receive more cost-effective SCR retrofits and the subsidy and cost sharing not only apply to selected regions. It might also be beneficial if not only VW and Daimler models were promoted. All Importers and car manufacturers should participate in the funding. Whether retrofitting is worthwhile also depends on driving bans.
If the owner of an affected car does not have to fear driving bans, then retrofitting may not necessarily be worthwhile for the owner. Of course, it depends on the individual attitude of each person affected. The conversion can also be made from Environmental reasons and to reduce NOx emissions. The reasons for retrofitting can be correspondingly diverse. Subsidizing or promoting the retrofitting of SCR systems in Euro 5 diesel can be helpful, so that more people decide in favor of such a conversion. "back
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