Help

[finisher68]

Hello evryone,iv got a 2000 528i,iv got problems,speed omiter and the other little needle miles per gallon,works whe speed omiter works..it works whene\ it wamts,,also the a.c took to mech, put two cans of freon,drivers side blows somewhat cold,passanger warm air,could i get some info on thes, thanks

[Jack Dabsy]

General Control Module (GCM) can cause this, also the dash cluster is a computer in its own right so maybe try another one just to test it...