In the past two weeks. Refused to start 4 times. Then would start 30-60 Minutes later. (Engine turns over just fine-no fire)

IT does not stumble it eithr runs or not. I ran it up to 90 MPH to do a laymans test of gas flow. All went fine.

Twice it stalled at intersections ..thankfully it started back up both times.

I have a 1999 with 100,000. Today I checked underneath and I have the origional style fuel Filter so I checked the pressure a few times when it would start and when it would not and there was pressure.

But today I heard a clue. It would not start in my garage. I raised the hood - after cranking but with the key still on I hear noises. There is a sound kind of high pitch like an electric motor running at the back of the intake manifold as far as I can tell. In addition a couple times there was in addition a gurggle.

Also included in this demonic possession is - I was under the hood and the doors locked. I didnt touch a thing. Both keys were inside the vehical. Thankfully a window was down. Have not a clue if it is related.

So What gizmo could buzz/whine with the engine off and key on that effects running ? (yes my fan was shut off).

__________________
Steve Danville
what i did myself.
CPS
rear shocks
MAS x 3.
SparkPlugs (twice)
Fuel pump & Filter
Window switch
replaced both failed horns with Honda horns.
Cleaned ERG Tube
Oil changes
Oil consumption Fix
Brake Pads
A/C Recharge
Anti-Freeze change X 2.
Front Shocks. Monroe. $90
Mercedes Warrenty Work:
Harmonic balancer,power steering clamp. Cat converters.Drive Shaft Bearing.s
Replaced Outer Lower Tie Rods and front lower ball joints at 156,000 miles