Fiat Linea Petrol – Burning Smell

Hello,
I have been driving a Fiat Line purchased 7 months back. I have already accosted the dealer in Kolkata to top-up 2 lts of mobile when the car did 8000kms (6 months) and again the gauge shows to be half empty again when the car is 9200kms now. Please advise! when i start the car in the morning, it emits a smell of mobile buring; please advise

Prosun