I have a 2002 clk 320, and I just opened the oil cap and there is some goopy looking yellow stuff on the cap. Can anyone tell me what it is, and what would cause it?

__________________
For the Saved, this world is the worst it will ever get.
For the unSaved, this world is the best it will ever get.

Clk's Ebay Stuff BUY SOMETHING NOW!!!

It is water, condensed from vapor in the crankcase. Short trips will cause this.

Here's a pic I just took. Is this anything I should be worried about?

__________________
For the Saved, this world is the worst it will ever get.
For the unSaved, this world is the best it will ever get.

Clk's Ebay Stuff BUY SOMETHING NOW!!!

Clean it off as much as you can, but yeah, its from condensation. I see this on at least one car per day.

__________________


1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

The engine operates better using motor oil, not peanut butter.

__________________
Chad
2013 Jeep Unlimited Rubicon
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL

I had that on my 76 volvo with the v6 renault engine. I found the crankcase breather tube was clogged.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

I use synthetic Peanut oil, only the best for my Benz.

__________________
For the Saved, this world is the worst it will ever get.
For the unSaved, this world is the best it will ever get.

Clk's Ebay Stuff BUY SOMETHING NOW!!!

Right, cars just aren't made for short trips. If you have only a short ways you must go the long way and then circle around a few times. Getting lost for a while is good idea too. This is an absolute must. The only other alternative is to get an older car that isn't a piece of crap.