1993 190E 2.6 questions

[andyv94]

Howdy,

I have a couple of questions that I hope you all can help me out with.

my car has 130,000 miles on it (just bought it) do not have complete car records.

My first question deals with A/C and engine hesitation.

When car is cold (but also sometimes when it's hot) and I am running the A/C and I try to accelerate from a dead stop or less then 10 MPH, the car really hesitates to go. It almost seems as if its going to shut down on me.
Any ideas??Same when I am at a stop light, I almost feel that if I sit there too long with the A/C on, that as soon as I hit the gas, the car will shut off...if I am idling the more I idle the more the car's RPM's go up and down between 500-750 is this normal??

Two questions in regards to oil sensor and leak.
The leak seems to be at top of the air filter, hose that comes from engine into air filter, oil seems to accumulate on top of cover (not realy much, but enough) and also when I went on a trip with the car it seemed that every 400+ miles, the low oil sensor would come on...............I don't think that the engine goes through oil like it is indicating, no black smog or anything like that. This happened while driving back home so I would stop and add about a quart of oil to the engine........any ideas?? Could it be a faulty sensor??
There are also no other oil leaks.

Gas mileage fairly poor with A/C on, is this normal?? I mean it seems to be worse then normal.

Thank you for your input.

Andy