88 300se

hard to change ? where is it located ?

when idle my oil pressure seems to low ..thought i shoulg change my pump to be on safe side

The complete oil pan must be removed.

Takes a good MB tech 6-7 hrs..

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It's a PITA!

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2012 E350
2006 Callaway SC560

Bearing clearances are also a factor in oil pressure. How low is the pressure at idle? Does it rise to peg the gauge at 1500 rpm?

Considering the fact that MB oil pumps are virtually indestructible, I wouldn't take on a job like that unless I knew for sure it would solve the problem. If you're working without a lift you can multiply the PITA factor by ten!

BTW, what makes this a hassle is that you have to raise the engine to get the pan over the coss member and you also have to disconnect some of the steering linkage.

I bet your pump is fine.

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2012 E350
2006 Callaway SC560

How many miles? Very unlikely it's the problem, if there even is a problem.

when idle its about 1.5 on the gauge .. 190k miles

i got a engine lift and tons of tools

barton, 1.5 bar is approximately 22 psi ... which is fine at idle. If the oil pressure increases to 3 by 1,500 RPM the oil pump and gauge are working fine.

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Fred Hoelzle

What does your owner's manual say it's supposed to be? 1.5 at idle sounds awfully good to me.

i just thought it was low ..seemed low .. i dont have a manual its in storage from when i moved .. from the sounds of your posts i guess its ok then

thanks fellas