Diagnostic Plug W211

[Chattonmill]

Does anyone know where I would find the diagnostic Plug on a 2003 W211 Estate?
Thanks
Max

 

[aka$h]

Open the flap next to the bonnet release handle.

 

[Chattonmill]

I notice that you have Chipped your E320, how much difference does that make? and does it completely trash the MPG?

 

[aka$h]

I notice that you have Chipped your E320, how much difference does that make? and does it completely trash the MPG?

If you drive the same way, as in not use the extra power you will see a slight gain. But in reality, you chip it to drive it, you'll lose around 3-4mpg. But the power difference is HUGE!