Maserati 3200 problem

[Mazdarati]

Today i returned from off dealer they changed DIGITEK ELECTRONIC CONTROL STATION (http://www.eurospares.co.uk/searchResult.asp?M=&Mo=&A=&B=&S=182232) which is under the steering wheel ! the problem was that its eats my battery and in 2 days battery was empty ! so i changed it everythng goes normal now but the new problems begins !
first now my temperature that show the C outside doenst work and when i shut down engine i cant start it again ! the car puts like on alarm and cant start engine again , but if you wait about 2-3 minutess the car starts ok or if u put up the wire from battery and put back again its start ok too !

what u think might be ? i put back it to off dealer but seems they cant find solution !

[Gring]

If there is a problem, there is a solution. Insist they get the car fixed, and if they are not capable of fixing the problem, they have clearly caused, insist that they pay for a dealer who can fix the problem, to resolve the issues.