CLK 220 CDI - Seems slow and giving crap MPG

[jezzaaa]

Hi Chaps - my Mum's CLK is supposedly 150bhp and should give well over 40mpg. However, on a long run to Edinburgh and back the other week, the display was showing 33mpg. Also, I drove my sister's 136bhp Mondeo TDCi and it felt much quicker than the clk and was returning 48mpg on a trip to Bristol from Dorset.

Are there any common problems with the MB which might account for this? It was serviced just over a year ago by MB Oxford...says it's due another one in about 2000 miles time. Currently showing 84,000 miles.

Cheers all,

J.

[Dave J]

dont trust the display in either car maybe calibrate the mpg yourself ?

pump the tyres up - this can add 4/6 mpg to my car if low in cold weather/ pressure etc ?

head on wind ?

auto box on the merc and passengers ?

I often get 35mpg on a motorway run if I'm doing 80/85 and have all the heaters and aircon on etc with c220cdi

[Dave J]

forgot to add

my previous mondeo tdci did an easy 52mpg on a motorway run