Only use one drain plug crush washer , I use the copper ones .
The filter cover pipe uses one 6 MM & one 7 MM O-Ring , they're special as Diesel Fuel contaminated oil attacks regular O-Rings quickly & wil cause loss of oil pressure .
Get them from your Mercedes Dealer , he'll have a microfiche reader with pictures that'll show them in the oil filter assy , or , just have Tom @ The Mercedes Classic Center in Irvine , Ca. order you up a set of four , save two in the ash tray (you don't smoke , right ?) and change them every few years....
Now , whilst the engine is out , is the time to replace the turbo oil return pipe O-Rings , there's a whole bunch of O-Rings hear & there on the engine and NOW is the time ! .
You'll need to drop the sump and tap the pipe out from below , get the rubber boot seal from the Dealer too...
I hope this helped .
-Nate
Trish wrote:
>
> We started putting my car back together yesterday. Changed the oil
> filter. Mine came with 2 crush washers...where do they go? Also on the
> "oil filter cover tube" (I just know you have a technical name for that)
> there are 2 rubber o-rings do they need to be replaced? I thought I was
> getting everything I needed when I placed my order. :(
>
> --
> Trish Dougherty
> PurrFect Harmony Farm
> Ennis, TX
> http:/purrfectharmonyfarm.intuitwebsites.com
>
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