My 2007 BMW series 3 needs a replacement hydraulic unit for the DSC (Dynamic Stability Control), for which I have been estimated £2400, a lot of money to spend on an ageing car. I am not 100% sure what DSC is, I think it is BMW's version of ABS.

Does anyone know whether it is vital that this is repaired? Will the car still pass its MOT without it? Even if it will, how safe would the car be to drive? I am not aware of ever having used the DSC - it seems a lot of money to repair something that I am not convinced is necessary for the type of boring driving I do.

The car's mileage is about 75K, so only 5.5K per year, and I have had it from new.