Should be able to get analog ASR codes on that chassis from pin #7 of the 38 pin diagnostic connector.
EA/CC/ISC w/ASR control Module.

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A Dalton

I would certainly hope that at a mercedes dealer, a mechanic would be able to effectively check it. He came back and said that there were no problems. By the way, many of the cases where limp mode occured were in traffic. I am wondering if limp mode can go on when driving much faster than that. If so, what happens after it goes on at 100-160kmh? Car starts to slow down to 40-50 slowly or does it break fast? Getting to Germany is the top priority

They probably did check it ..the problem is you have to check it right after the fault appears..if it does not do it for a few cycles after that, then it clears itself. That is the problem with imtermittant faults ..and the most common one on ASR is the Brake lamp switch..your in traffic condition is were the brake is used the most and many guys that can not find an offending ASR code change the brake switch and the problem clears up..
You can go into that pin yourself with a simple Led/sw tool to check it, if you are handy...that is what I would do next.......

Page 48

http://www.geocities.com/MotorCity/Downs/1039/mercedes/cs1000_mb.pdf

Search Brake lamp switch.

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A Dalton

You can afford to fuel a 600SEL at Europe's fuel costs.....but can't afford to get it repaired?

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

lots of problems with making such a statement. never know what a persons financial situation is, how often he drives, if it is actually his car etc . Either way, I wrote that my top priority is to get back to home to Germany. I will deal with it accordingly after I get there. Im trying to do everything so that I can get there without spending any money so I greatly appreciate all of the help/advice that you guys have provided. Thanks arthur ill check it out. By the way, someone suggested disconnecting the maffs as a way of stopping the limp home mode. Is that worth a try?

Just guessing - maffs would be mass air flow sensor? I would do as Arthur suggests and build the code reader. Do you Radio Shacks there, or something similar?

so i had a few days of peace. The weather was very dry and it was all good. Yesterday It started snowying and the snow melted. Today is a little wet but yesterday the car was fully covered in snow. I turn on the car and ASR light is on but it is ok to drive. I turn the car off and on again and it goes away, but after driving about 500m limp home mode goes on with ASR light.

I just remembered that this was the exactly same situation the first time it happened. Could it be that the cables are just soaked and that is causing the problem because the insulation is gone? After two days or so of dryness I didnt experience the problem.

Do the following:
When the car goes into Limp mode. Shut it off. Turn it back on, but instead of D, drive it in 3 for a while. If the problem does not happen, most likely the problem is the neutral safety switch.

Another could be the brake light switch.

I do not know if your car has one, but the OVP relay causes the same problems.

Those are the 3 cheapest to replace components that are known to cause limp home with ASR.

I am not surprised the problem came back, as nothing was done to fix it in the first place.

__________________
1999 Porsche 996 Carrera Convertible
1994 420E - SOLD
1986 300E - SOLD, what a car
609 Certified

oh I believe that the limp mode came on while I was driving in 3. I took the advice and was mostly driving in 3 the past few days.

Go GETTHE CODES.

When you go to limp, there is a code stored...simple.
Intermittant codes clear if they do not repeat...so you have to get it in situ...that's all. You have a computer monitoring for faults and it is there to tell you what it has detected, but you have to ask it... and it does not Guess......
You can guess and we can guess, but the DM does not..it reports what it has detected as not normal. ie, a Fault.

There is also a often over-looked ASR limp trigger if the tire sizing or inflation pressures are not equal...I always check that first b/c the module makes a 4 wheel circumference comparison .. [ rolling circumference is proportional to individual wheel speed]

__________________
A Dalton

Read this article:

http://www.asashop.org/autoinc/july2005/techtips.htm

__________________
1999 Porsche 996 Carrera Convertible
1994 420E - SOLD
1986 300E - SOLD, what a car
609 Certified

These Flash codes should be available from pin #7 of the 38 Pin Diagnostic Interface Connector...and they are ASR related Faults.

FAULT CODE TABLE
DTC Readout Possible Cause of Failure
1 No fault found
2 EA/CC/ISC control module (N4/1) or Safety contact switch (M16/1s1) or Stop lamp
switch or Cruise control switch or Actual value potentiometer or Starter lock-out/back-up
lamp switch or engine speed signal or vehicle speed signal or closed throttle position
switch or safety relay in EA/CC/ISC control module
3 Right EA/CC/ISC actuator (left cylinder bank) (M16/1)
4 Cruise control switch (S40)
5 Stop lamp switch (S9/1)
6 Starter lock-out/backup lamp switch
7 CAN data bus signal from EA/CC/ISC, ABS/ASR, HFM-SFI or LH-SFI (right or left)
control module faulty.
8 Left front axle vehicle speed sensor from ABS/ASR control module
9 Left rear axle vehicle speed sensor from ABS/ASR control module or in 124 chassis
Hall-effect speed sensor.
10 Engine speed signal (TN) from base module (LH-SFI) or engine control module (HFMSFI)
11 Closed throttle recognition signal to engine control module (HFM-SFI or Left LH-SFI)
Fuel safety shut-off to engine control module (HFM-SFI or left or right LH-SFI)
12 EA/CC/ISC control module voltage supply
13 Left EA/CC/ISC actuator (right cylinder bank) or actual value potentiometer (M16/4r1 or
M16/4r2) or actuator motor (M16/4m1)or magnetic clutch (M16/4k1).
14 Closed throttle position contact switch
15 CAN data exchange with ABS/ASR control module illogical

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A Dalton