I have a fiat doblo 1.9 53 reg. it's the economical one. Not fast at all. It has started to lose power and is really noisey. Going up hills is a nightmare. It's had new glow plugs and exhaust. The problem started when the front section of exhaust broke. Any feed back will be gratefully received
It being noisy suggests exhaust/manifold problems,not sure if it has a turbo but would check that out also,remove inlet pipe and check for play in the impeller if it is there,good luck.