Mercedes should consider engine recall
Reports in the UK media claims that Mercedes is considering a recall of some of its new diesel BlueEfficiency engines due to a sudden loss of power reported by some owners.
Regular readers of Motors will recall that we raised this issue in relation to a reader’s query in the Helpdesk in February.
The problem arises with some of its 220CDI and 250CDI diesel engines and causes the sudden loss of power. I can speak from first-hand experience on the matter, for I recently tested a Mercedes E250 CDI that suffered just such a fate. As I pushed down on the accelerator, nothing happened and the engine seemed to be simply idling away. Lifting off and kicking down on the accelerator pedal made no difference. Thankfully there was enough momentum to get the car into the side of the road. By turning the car off and on again the engine seemed to recover its composure and it didn’t happen again while I had the car.
Mercedes says the problem is due to some faults with the fuel injectors and it has now been rectified, with the new parts fitted to all cars in production. A spokesman said earlier versions will be replaced as problems arise and costs will covered on a goodwill basis should they fail later in the car’s life, even when the car runs out of warranty.
However, it does seem time now to initiate a full recall on these engines and get them fixed. It’s not as if they will be dealing with large numbers: the problem doesn’t affect 200CDI engines, which are by far the most popular in Ireland. Mercedes says the numbers affected in Ireland will be single figures. In which case it begs the question: why wait for problems to occur?