See more from Ask Carzone 
Economy for 1998 E-Class?
Miles per gallon on E220CDI Mercedes 1998 model
Our answer:
Hi,
The official fuel economy figure for that model E 220 CDI was 42.2mpg on the combined cycle, but what you’ll get out of it now would depend very much on how well cared for the car has been since.
Have a motoring question? Ask us here!
Ask us anything motoring related and please provide as much information as possible so we can give you the most accurate advice.