Guys,

Those in the know, what's the score with emissions in the test these days.

My daily runner Merc E280 failed this morning on emmissions (probably the last thing I would of thought of)

Apparantly had to be within 0.97 - 1.03 and is was actually 1.05

Was he being particularly picky ?

Recons it's the lambda sensor on its way out, if so is this an easy job as I would assume it would have two being a v6, are they easy to reach, does the ecu need resetting etc ?

Cheers
Paul