Hello to all,

I own 2 cars, a 2005 clk 320cdi & a 2003 clk 320 convert.

my question regarding the diesel is does the OBC mpg register take into account the difference in fuel usage when the a/c is on compared to off??

my question regarding the convert is how often should the spark plugs be replaced and which make / model is the best / correct?

Many thanks for your help folks, much appreciated


dm