[w140benz]

I was lucky enough to get a free 260E (1989) auto, but there seems to be a problem, as soon as the ignition is turned on the oil pressure reads max pressure (3), I was under the impression the oil pressure would pick up once the engine has been turned on? What do I need to check or replace guys?

 

[Professor Booty]

I believe that's the way it is supposed to be. I say this because that's the way mine has always been and my mechanic hasn't said anything to me lol.

 

[kn90d3]

That is normal until the engine reaches operating temperature. Then in gear the oil pressure should be about 1 1/2 to 2.

 

[Guest]

I think he means when the ignition is on but the engine is not running?

 

[Professor Booty]

Oh good catch, Jasper. I didn't notice he said that. Nevermind my first reply then.

 

[Nokia]

Hi !
Look on you Oil Presure Sensor.
Connection or bad unit.
Is loctea at the Oil Filter base.

Regards

 

[NiuginiBenz]

Hi, I had the same problem when I got mine and it turned out to be a faulty pressure sensor. Easy to change.

 

[jhodg5ck]

Yup, definetly the oil pressure sending unit.. Swap it out ASAP, it's good to know one's actual oil pressure;-)

Jonathan

 

[w140benz]

Thanks for the reply all, but how do I go about changing the oil pressure sensor? Is it any where near the oil filter?