While you wait for answers, we may have found some information which could help you.
Click here for Replace Heater WorkEngine smoking?
Battery drain (or alternator or electrics?) on Citroen Berlingo 2008?
Citroen Dispatch 1.9 d in limp mode?
Citroen Berlingo 1.6 hdi will not start with key?
citroen dispatch oil level fault?
Wiring to relay between fuse and starter motor?