Decoke !!!!

There's a term I haven't heard for ages. I agree that there must be some misunderstanding as to what needs "decoking" and would imagine it is indeed the DPF that requires a regen.

I don't know how you stand in regards rejecting the car as not fit for purpose as the handbook, I should imagine, point out that the DPF regularly requires a regeneration which normally is carried out automatically in course of a drive cycle.

A regeneration drive cycle usually takes place when the sensors in the DPF sense the filter is getting blocked and take place when driving at approx 50 - 60 mph and around 2500 - 3000 rpm. If these parameters are not met, the filter steadily gets more clogged, and after maybe 3 - 4 failed regeneration cycles, it needs to be force regen'd using diagnostic computer equipment.

If, like you say the majority of your useage is around town as a SOM car and you specifically indicated that was what you would be using it for, I'd be constantly hounding the dealership demanding they sold you the wrong car for the job.

I was unfortunate enough to have used a Corsa C with the 1.3 diesel as an instruction car. About the only thing it didn't need was a decoke in 50 k miles, alternator failed, wouldn't start in cold weather, steering wheel loose, clock spring failed, indicators failed, kept going into limp mode, n/s front suspension collapsed, fault lights on and off the whole time When I complained for the nth time to the oaf behind the service reception desk he shouted at me that "these cars are only for doing the shopping in-what do you expect?"

Goodbye Vauxhall - Hallo Honda ever since.