Hi
I have recently purchased 2004 C220 Cdi Auto with 84k miles on the clock and full Merc Service History. I purchased it on Boxing day based on my successful experience of 2001 C220 cdi coupe. I travel almost 90 miles a day and my previous car 2001 was very good on fuel and used to give 49mpg average to and from work.
Since I bought 2004 C220, it had thermostat issue which has been sorted now and temperature gauge does show correct temperate i.e. around 90, however fuel economy has not improved at all, on long run on motorway it is hardly going upto 39mpg.
Having read several threads, I am of mixed mind that whether this is due to MAF sensors, or Pre Catalytic covertor or something else.
Car overall runs absolutely fine and has got no issue. Gear box is smooth, ad there is a lot of power in engine. No issues with Revs.
I will really appreciate if anyone could give me advice, that should I change or clear MAF and whether this is the real issue??
Many thanks
Toseef
I have recently purchased 2004 C220 Cdi Auto with 84k miles on the clock and full Merc Service History. I purchased it on Boxing day based on my successful experience of 2001 C220 cdi coupe. I travel almost 90 miles a day and my previous car 2001 was very good on fuel and used to give 49mpg average to and from work.
Since I bought 2004 C220, it had thermostat issue which has been sorted now and temperature gauge does show correct temperate i.e. around 90, however fuel economy has not improved at all, on long run on motorway it is hardly going upto 39mpg.
Having read several threads, I am of mixed mind that whether this is due to MAF sensors, or Pre Catalytic covertor or something else.
Car overall runs absolutely fine and has got no issue. Gear box is smooth, ad there is a lot of power in engine. No issues with Revs.
I will really appreciate if anyone could give me advice, that should I change or clear MAF and whether this is the real issue??
Many thanks
Toseef