Budget Baller

I know this is going to sound really strange, but sometimes when I'm driving my car around town, (tends to be when I drive the car hard) sometimes I smell what seems like rotton egg coming through the vents. It's very mild but it's definitely coming from the car and not outside.

Crazy or do you think something is burning up?

OverDrive

That is one of the signs of a catalytic converter failing, I would check it out first

Budget Baller

ehhh, that's not good. I was thinking a burning hose.

Is there a way to physically check if it's going out?

_AMG_

Really?
I smelled that the first month I bought the car after going for a hard drive.
Cars running great.

Budget Baller

Yea my car runs fine as well other than a rough idle which it's always had. But the smell has always been a bit annoying. Especially when someone else is in the car. IE impressing lady friends

lkfoster

An overly rich air-fuel mixture can do that, but I would expect the OBD to throw a CEL code.

Budget Baller

Just had an OBD hooked up to the car recently. No codes at all.

OverDrive

I am not saying thats the issue, but thats one of the tall tail signs that its going out.

http://www.popularmechanics.com/cars...repair/2423551

thtguy

I don't see why you would smell it coming through the vents though, if it were exhaust related. If the C32 has battery in same place as C55 I would say check cabin filter, and check that the battery vent tube is connected. One of the stupidest designs I have seen cabin fresh air intake directly over a vented battery.

W203Ramos

+1

Dollos

The rotten egg smell comes from the battery. When charging my battery with an external charger one day I noticed the smell in my car. That time my battery was dying and had some problems. Changed the battery and problem gone. And I second one of the the previous post about stupid design to put fresh air filter over vented battery.