Oil Pressure could read Zero - PeachParts Mercedes-Benz Forum

G-Benz · #1 05-26-2008, 11:15 PM

Your idle pressure should be reading around 1.5 - 2.5 bar depending on the viscocity of the oil you currently use.

I've replaced the sending unit on my M104 (300E) twice. The unit costs around $65-$70 and can be replaced in less than 30 minutes.

Access to the unit is under the vehicle. A bit tight to get to as you have to maneuver around the starter and the harness. I don't remember what wrench size to use, but make sure it's a short one...not a lot of room to turn, but after a couple turns, you can hand loosen and remove.

mroliveira · #2 07-10-2008, 07:56 AM

It took me a while to get to it, but I just replaced the oil pressure sender, and it is working great. Pressure has not dropped below 2 bars.

Thanks for all the input!!!

Quote:

Originally Posted by G-Benz

Your idle pressure should be reading around 1.5 - 2.5 bar depending on the viscocity of the oil you currently use.

I've replaced the sending unit on my M104 (300E) twice. The unit costs around $65-$70 and can be replaced in less than 30 minutes.

Access to the unit is under the vehicle. A bit tight to get to as you have to maneuver around the starter and the harness. I don't remember what wrench size to use, but make sure it's a short one...not a lot of room to turn, but after a couple turns, you can hand loosen and remove.