Factory fuel filter.....
#26
Super Moderator
Replaced its fuel filter again this morning.
Notwithstanding the fact it’s subjected only to so-called ‘top tier’ fuel from high-volume filling stations,
witnessed a surprising amount of debris in the catch basin upon draining it – after only ~30,000 miles.
Our local dealership quoted “about $300” to perform the simple task.
Figuring $50 street price for the filter and a casual half-hour of labor, it was time well spent.
Note the C32’s filter contains an integral fuel pressure regulator, so it’s probably best to avoid bargain suppliers.
Additional information…https://mbworld.org/forums/c-class-w...placement.html
Notwithstanding the fact it’s subjected only to so-called ‘top tier’ fuel from high-volume filling stations,
witnessed a surprising amount of debris in the catch basin upon draining it – after only ~30,000 miles.
Our local dealership quoted “about $300” to perform the simple task.
Figuring $50 street price for the filter and a casual half-hour of labor, it was time well spent.
Note the C32’s filter contains an integral fuel pressure regulator, so it’s probably best to avoid bargain suppliers.
Additional information…https://mbworld.org/forums/c-class-w...placement.html
Last edited by splinter; 07-13-2012 at 12:53 AM.
#27
Hi is the fuel filter seperate from the fuel pump then or is it connected
I have looked for the fuel filter part and can't seem to find the part at autozone or any parts store . Could you help me out guys is it attached to the fuel pump I am trying to learn , thanks.
#28
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Join Date: Sep 2010
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1999 E320 4matic Wagon, 2005 C55 AMG - sold, 1998 VW Jetta TDI - sold, 2006 C230 Sport - Totaled :(
www.rmeuropean.com
www.pelicanparts.com
www.autohausaz.com
Check those. Also, try checking the specific forum for your model vehicle, which appears is E500, unless you haven't updated that?
#29
![Question](https://mbworld.org/forums/images/icons/icon5.gif)
Sorry to bring out old thread but fuel pressure tested from fuel rail on C32 I was told should run at or around 60 psi when car on and when car off shouldn't go under 50 psi even if off all night.....is this right? I was told culprit usually is fuel filter since they have regulators inside. What else can be a culprit?
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
#30
Worn out fuel pump can also reduce pressure. I had a pressure reading of 45 psi (3,1 bar) when my pump started malfunctioning. After a new factory filter and Walbro 255 pump my pressure is minimum of 56 psi (3,8 bar) and it stays stable all the way up 280 km/h. I have a meter hooked up inside the cockpit so I can see pressure at all times.
#31
Worn out fuel pump can also reduce pressure. I had a pressure reading of 45 psi (3,1 bar) when my pump started malfunctioning. After a new factory filter and Walbro 255 pump my pressure is minimum of 56 psi (3,8 bar) and it stays stable all the way up 280 km/h. I have a meter hooked up inside the cockpit so I can see pressure at all times.
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)