03.10.2024

Update on AdBlue

Research by ESTA, the European association for the crane and heavy haulage industries, has uncovered numerous examples and ongoing concerns related to engine malfunctions linked to AdBlue additives in the lifting and heavy transport markets.

ESTA has therefore urged all of its its members to report issues after crane rental companies informally indicated that up to a third of on-road breakdowns were related to AdBlue. AdBlue, used to reduce nitrogen oxide emissions in diesel engines, can cause malfunctions, leading to engine power loss and shutdown, especially in cold conditions, raising safety concerns.

Since it began asking members and members of its partner associations, to report any problems or reliability issues they may have experienced related to the use of the AdBlue in July, 55 companies from 10 countries, mostly the UK, Netherlands, and France, have reported problems with mobile cranes, trucks, and self propelled modular transporters. Nearly half cited safety risks due to breakdowns on public roads, with a small number experiencing dangerous interruptions in wind turbine and port load out operations. Worryingly, three companies reported more than 20 incidents over the past two years.

ESTA director Ton Klijn said: “We will continue gathering information and will be consulting with the members of the joint ESTA and FEM European Regulations Workgroup that first raised the issue, and then decide on the next steps.

"What is already clear, however, is that this is a serious issue with considerable safety implications - and it needs to be addressed as a matter of urgency."

One solution could be for engine manufacturers to create an ‘override’ that keeps the engine running temporarily during an AdBlue system malfunction. However, they are reportedly hesitant to invest in redesigning diesel engines, as their focus shifts toward electric.