I acquired a super clean great running 190E 2.6 last year with 123k miles on it. Oil pressure goes full scale when cold and above 1100 rpm when hot. At idle, in gear when hot, the oilpressure sometimes goes all the way down to 0 and sometimes to about .4 on the scale. I understand from the manual that Oil pressure at idle of .4 is normal when hot and at idle and is no problem as long as it goes back up when the rpm's are increased. The previous owner told me that it had always done that and that this is not a problem. When I was digging through the paperwork that came with the car I found a recent receipt for replacement of the oil pressure sender. Could it be something else like a bypass valve that might stick open? Any comment, ideas would be appreciated. Pete
- posted
20 years ago