Car makers have been forced to consider upgrading exhaust treatment systems on older cars after German cities started banning heavily polluting diesel vehicles to cut fine particulate matter and toxic nitrogen oxides.
Daimler launched a website this week to process applications for financial support, as German motor authority KBA seeks to approve an after-market kit to upgrade the exhaust systems on various Mercedes diesel passenger vehicles.
The company has offered the subsidy to customers in German regions that face potential driving bans, the carmaker said.
The first retrofit kit for Mercedes cars with “Euro 5” diesel engines, including the best-selling E 220 and E 250 models, has been developed by Dr Pley SCR Technology, a Bavaria-based, family-owned business. It will cost around €3,000 to buy and install.
German carmakers initially offered software updates and shied away from endorsing hardware retrofits, instead lobbying for customers to buy new cars with cleaner engines.
But consumer groups pressured carmakers to endorse retrofits as a more cost-effective measure.
“We have known right from the start that retrofits are feasible and have now proved this to the carmakers,” said Thomas Steinbrueckner, head of development at Dr Pley SCR Technology.
