Lots of consumption, maximum 160 and ignition problems!!!

Hello.After I have got a new KAT under it now because my car only 130 drive I have the following problem. My car drives according to NAVI only 160 maximum and so many times if I want to start I only see control fights and nothing starts. I have to repeat this then two three times with key turn until it starts. temperature indicators everything in order.New battery, air filter,Zündkerzen also the fuel consumption has increased by a lot in my opinion so to 12-14L . Meanwhile he also has 235Tkm but ASU is new so Lambda is fine.What else can it be??