placo1, after having smogged many mercedes,there is something
about them that is much differant than most cars. the cats on these cars cool down fast. same as bmw.
the cats on mercedes seem to last almost forever.
if you are not sure about your car and its hc numbers, take it to a smog shop and have them precondition your cat.let them get it to
turn on. you will be amazed at how clean your car is at that point.
not sure if it's the surface area of the cat, but when it is fully fired up these german cats are great.
the smog numbers you have are from a cat that has cooled a little.that is why there is some 02 left over.your car is still to new, low miles, to have any real problems with the cat.
good luck and don't let these numbers worry you
rich

__________________
88 300E White, sold 9-04
88 190E Black 2.3 sold
90 300CE White, Grey sold 12-24-04
92 400E White,Grey Sold 5-06
90 300CE 91K Signal Red,Black Sold 2007
1989 300CE Smoke silver,Tan Sold 1-08
1993 300E 3.2 M104 motor
1991 300CE White,Grey
1994 E420 beautiful car,gone to new home
1994 E320 Smoke an Parchment.Beautiful car