that's getting longer by the day.

You may recall that I also suggested the throttle cable/linkage but not sure you've tried that. Also the DI module, etc..

Please do us all a favor: summarize all of your 'fixes' done to date. This might give us (and you) a clue of what to do next.

"Inquiring minds want to know"

__________________
Regards . . . . JimF
-------------------
'94 S500 Cpe

Visit my Mercedes Web Page

I too have that problem on my 1993 (M104) 300E 2.8.

When coming to a low speed, for instance when you want to park , the engine may cut out when turning the sterring wheel fast and full. You can already see the idle speed drop when making a short jab at the sterring wheel when standing still with a running motor. It happened to me also a few times that I was runningf at very low speed, trying to find a street name and that while turning the curb the car died on me. At first i figured that it would be the OVP that cuts out idle control valve or even the ECU but after replacing it and the fuel pump relais it still does it. My problem is accompanied by the engine misfiring, or even cutting out really briefly, while cruising at higher speeds on the freeway. Or actually any constant speed. My Benz dealer has also not been able to come up with even a suggetsion so I am more then curious about the outcome of this discussion.

Thanks and greetings,

marc

I too have that problem on my 1993 (M104) 300E 2.8.

When coming to a low speed, for instance when you want to park , the engine may cut out when turning the sterring wheel fast and full. You can already see the idle speed drop when making a short jab at the sterring wheel when standing still with a running motor. It happened to me also a few times that I was runningf at very low speed, trying to find a street name and that while turning the curb the car died on me. At first i figured that it would be the OVP that cuts out idle control valve or even the ECU but after replacing it and the fuel pump relais it still does it. My problem is accompanied by the engine misfiring, or even cutting out really briefly, while cruising at higher speeds on the freeway. Or actually any constant speed. My Benz dealer has also not been able to come up with even a suggetsion so I am more then curious about the outcome of this discussion.

Thanks and greetings,

marc

All:

I will replace my water pump and re-seal my power steering pump's (minor, "O"-ring related) leaks, tomorrow afternoon.

Also, I plan to recharge my A/C system (for summer).

I will let everyone know if my stalling problem persists/ceases to be...

Thank you,

did you replace the brake light switch?

I will have this done, today, in addition to resealing my power steering pump and replacing my water pump.

Stay tuned...

All:

Having just:

- replaced my water pump
- resealed my power steering pump
- repalced my brake light switch

I am still stalling.

: (

Next, I will replace my A/C compressor + clutch; I suspect THEY are the culprits. I still have a leak, somewhere...

Scott, I hate to see you going threw this, you are running out of parts to replace!

It may be unrelated but have you reviewed this thread? Is it possible that Mark Stetson's ASR problem he finally fixes on 2/10 is tied to your Stalling problem?

I can't remember if you have had the alternator checked as well, Dean had an ASR issue that you may want to review here. Good Luck...

Hello All,

Yesterday evening I tried checking my sparkplugs for the color. When checking the coils before exiting the plugs I found that one of them was not properly placed over the spark plug. Althought it was put in straight over the plug there was still one final click before it really set. After checking all of tem and really tighening them the hickups are gone,.....for now that is. I drove my car a some while today and it did not stall and it did not even hick up. So who knows, I keep my fingers crossed.

Greetings,

marc

Thanks for your re-direct; I have, in fact eliminated ASR as the culprit.

My alternator was replaced, too, less than 4 months ago.

Still searching...

Scott. I had this Similar complaint. Belive it or not its all tied into ASR. Rem that Stalling I'm sure just donest happen if you font make contact with the throttle does it. The reason I say this is
this has happened to me a few times. When Ever I check to codes with the HHT. It always pointed to ASR/electroic accelerator. Its a prett good educated guess and inexpensive one at that. To replaced your Neutral safety switch or more technical terms. The Electronic slector lever module.
I replaced it. Now more ASR limp home mode coming on.

Now IF you completey disabled ASR you stil stall out then more fishing to do. I'm curious How did you eliminate the ASR being the cuprit when ASR is soo intermitent.



Good Luck Guido

__________________
500E Sold
2006 Mini Cooper S
Modified,pulley,injectors,suspension
2009 E350 Sport AMG package

Helo All,

Just a small update. After my last reply I drove my Benze for a few long runs and the usual city trips.

No more hick ups and stalling at all, everything smooth and fast.

Greetings,


marc

my 500 sel ASR light comes on and car loses power. After turning engine off and restarting everything is back to normal. Seems to happen at prolonged hi speed driving on freeway. Any ideas?????

dealer changed computer but nothing. Another mechanic changed throttle control valve actuator...still have problem.

Hello Guys,

My 1993 300E 2.8 did the same thing. when cornering at low speed the engine would just cut out. Or when cruising at normal speeed on the highway it would hick up when hitting a bump. It turned out to be an ignition coil that didnt fully click in. This way the grounding was oke as long as the weight of the coil was enoug to keep it in its place. But cornering or bumping made the coil move and loose its ground, the ignition would then have a short failure and the ecu will shut down the injectors to protect the Cat from unburned fuel. After making certain that all coils were really fitted properly I have not had this problem again. I do loose my idle speed but in a different way and the hickups are cured.
Greets and good luck,

marc

Hi,

I had the same problem on a Range Rover with Bosch fuel injection too. Turns out that there is a g-force activated switch that will cut the fuel supply in the event of an accident (rapid decelleration). These are known to go bad and cut out while cornering. You should check your wiring diagram to see if you have one they are often under the drivers seat. If this is the problem the fix is really simple (solder a wire across the terminals).

Hope this helps,

Nicholas

__________________
Almost mint 1983 230E eurospec.
Honda civic for those not so mint moments.