24th Jul 2011, 06:22
The diesel additive message comes up for one of three reasons; lack of diesel additive, a blocked DPF (a section of exhaust), or a problem with the ECU that controls it. The best and cheapest way of fixing it is to have the centre of the DPF knocked out at a garage, and get a DPF removal company to plug your car in; this should cost about £200 and the problem will be resolved. Main dealer would advise a much more expensive option.
12th May 2011, 16:43
The intermittent power loss may be a fault in the brake light switch attached to the brake pedal. It is meant to cut power when the brake pedal is pushed. Had this happen twice with my Picasso.