DIY repair frustration - Benzworld.org - Mercedes-Benz Discussion Forum

lilone · 11-08-2009, 06:53 PM

OMG I think I am about to pull my hair out, which won't be fun since I have a lot of it.

Why is it so hard to find a diagram of the location of the EGR Valve and the
O2 sensors? I have spent close to two weeks trying to figure this out. Yes i searched on here there was a pic of a C280 engine compartment, and as much as i hate to admit it it was no help to me. I'm a girly girl and i need the diagram with labels and all. Please anyone know where on might be found?

LAMF · 11-08-2009, 09:08 PM

The EGR valve will be connected to the intake manifold somewhere. shouldnt be hard to find. it looks like this...
http://www.partsgeek.com/catalog/199...egr_valve.html
O2 sensors all you gotta do it jack up the car and see the 2 at the top of the exhaust. Should be one before the cat and one after. They are the only thing on the exhaust with wires coming off of them

but this helps

marvinstockman · 11-09-2009, 04:34 PM

First, you should buy the Bentley manual. It's on Amazon, and other places.

Are you after these parts because they are bad, or for future reference?

marvinstockman · 11-09-2009, 04:35 PM

You can also go online to Alldata, and buy a one year subscription to car repair info.

Bottom line is, you've got to pay to play!

viejo1221 · 11-11-2009, 10:04 PM

For the O2 sensors, exactly what LAMF said.

lilone · 11-13-2009, 12:25 PM

Thank you so much. You guys have saved my sanity.

lilone · 11-13-2009, 12:28 PM

@viejo1221. Where did you find that diagram? Do you by chance have a link to it? That would be fantastick if you did.

Again my sincerest thanks to everyone for your help.

viejo1221 · 11-13-2009, 07:56 PM

They're from the Online Manual for the 124 M104