OK. The story first:
I was going down a country road the other day, not exceeding the speed limit (there wasn't one ) and came over a hill into a blind corner. I dug in the brakes and cranked the wheel over, ABS kicked in as it should (slightly gravely road) and then the car stalled . No more ABS or ability to try and regain traction by getting into the gas...spun out, but managed to keep it between the ditches. My immediate thought was that I was low on gas(reserve light had come on not half a mile before) and that the G force of the corner sloshed all the fuel to one side of the tank, stalling the car. But I talked to the PO (a good friend of mine) and he said that this had been a problem years ago. He even had it into the dealership a few times and they replaced several things (inc the EHA) but were flabbergasted.

The Question: Well, in discussing our experiences w/ this we came up with this senario: When coming into a corner at higher-than-average-G's (faster than one would on a daily basis, definitly spill-your-coffee-corner) and getting into the brake hard (maybe not until ABS kicks in but not too far away) the car just flat out stalls. I don't like this idea. It is there, at the ratty edge of control, that you need your car not to panic, and pull some very "Italian car" stunt like stalling (the same friends Alfa did that all the time...turn on the radio, car would stall ). WHAT THE HELL IS CAUSING THIS?? I think it has to be something electric, but I don't know where to look. Anyone had a similar prob? Every lose or almost lose control of your W124 and have it stall? Was there a recall about this I didn't know? I know the OVP is hooked into both systems (right?). What else is? I would really like to figure this out before I swerve to avoid a Girl Scout that is helping an old lady carring puppies across the street and I end up dead.

Thanks for any imput.

-Matt-

(ps: And don't tell me that the best solution is not to take corners so fast. This solution only works if you can also control what everyone else is doing too. )

(pps: The car is my well taken care of 1991 300E)

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Currently:
1972 350SL Euro 4spd
1973 BMW R75/5
1981 BMW R80GS
1995 FZJ80 with OM606 Conversion In Progress

hope you used the emergency brake

mine did this a couple of times, low-speed, downhill. I took out the MAS, cleaned the contacts and put it back in. It hasn't stalled since.

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1993 320TE M104
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past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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"music and women I cannot but give way to, whatever my business" -Pepys

The usual cause of a stall under hard braking is a sticky idle control valve, compounded most times by vacuum leaks, often at the idle control valve hoses.

If those two hoses leak more under sideways force, the problem will be worse.

The other possibility is a bad fuel pump relay, but that usually causes random stalls while driving before it quits all together.

You may have simply run it out of fuel, too, but cornering hard.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

Something just occured to me....Is there a mechanism in this model that would shut off fuel in case of an accident. I would find it hard to believe that there wouldn't be one... If there is one, it would make sense that under that combination of corner G and nose down force of braking (and only the combination) that an overly sensitive/broken fuel shut off might be tripped. Is there one in this model??? Where might it be found?
Thanks!
-Matt-

__________________
Currently:
1972 350SL Euro 4spd
1973 BMW R75/5
1981 BMW R80GS
1995 FZJ80 with OM606 Conversion In Progress

Fuel pump relay shuts off fuel when the engine dies (for any reason).

Stalling condition sounds a lot like a bad airflow pot. But it could be most anything.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

But, What is the thing that tells the FPR "Holy S***, the car is almost upside down, we'd better shut the fuel off!!" ?
Hmmm....maybe I had better get back into my wiring diagrams....
And also better check out MAS/air pot and check their operation.
Thanks guys, just don't need this to happen in a real emergency!
-Matt-

__________________
Currently:
1972 350SL Euro 4spd
1973 BMW R75/5
1981 BMW R80GS
1995 FZJ80 with OM606 Conversion In Progress

The first thing I would look at is the fuel relay. They tend to malfunction if there is a crack on the printed circuit board. Cracks commonly occur on the cack of the board where the component's pins are soldered to the boards circuits.

Open relay (Pull off top) and examine back of board with magnifying glass.

__________________
Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra