The problem is that the cooler for the exhaust gas recirculation (EGR) module might develop an internal leak and coolant could mix with the diesel engine’s soot and sediment, according to a recall notice on Transport Canada’s website. The notice says that in rare circumstances, the problem could result in smouldering particles and lead to the melting of the intake manifold, increasing the risk of a fire causing injury and/or damage to property.
BMW and Transport Canada say the problem could lead to any one of the following: A warning symbol in the instrument cluster displaying a loss of engine coolant; a reduction in engine power; the smell of exhaust gas; an unusual noise from the engine compartment; and/or smoke from the engine compartment.
BMW Dealers will inspect the EGR cooler and, if necessary, replace it. If it is determined that the EGR cooler has leaked internally, the intake manifold will also be replaced.
The EGR pipe connecting the cooler to the manifold will be cleaned.