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Shift Lock - stuck
Strange problem,
A few weeks ago I took wifes 2000 320 out to the store. Parked the car then decided to move to a different spot. Couldn't get car out of park. Finally read the manual and used the pen in the hole trick to get the car out of park. When leaving the store, noticed BAS / ETS lights were on, so figured that maybe the shift lock used the same switch as the BAS/ETS system. (by the way, those lights come one infrequently and normally when it's damp outside) So....father-in-law borrowed car for a week, and used the pen trick with no problem. Wife got car back and it's working fine.... Any ideas what can cause this? I'm not going to worry to much, because she knows how to make the car work, but I'm just curious. thanks - great forum, just found it - will be asking many questions in the upcoming weeks I'm sure! Rob |
#2
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MOST likely! some liquid has been spilled on the gear shifter!
IT is a computer & computers don't like liquids!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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Quote:
Last edited by carson356; 11-07-2005 at 04:23 PM. |
#4
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OF course if the brake lamp switch was a problem then the brake lamps wouldn't work OR the traction system lamps (ESP/BAS/ABS) would be on indicating a fault!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#5
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Quote:
the function of the brake lamp switch circuit is not strictly for the brake lights on this model, it has two connections, one that is strictly to operate the brake lamp circuit, and a second for the CAN system that tells the other systems that the brake is being pushed, ie ESP/BAS/ABS, it is the CAN side that fails quite often causing this type problem and many other codes to be stored pointing to a defective brake lamp switch S9/1, so the brake lights may work and the S9/1 may still be defective on the CAN side. |
#6
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The traction system can be scanned for faults, as welll as the trans system. WHATEVER that is causing those problems should be evident by the codes that are read from those systems!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#7
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Quote:
you are correct, but i am sure if this guy had the ability to scan the car, he wouldn't be posting, his question here. try to analyze the problem a little before you jump the gun and condem a very expensive control module. |
#8
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ON any car with complete computer controls a SCANNER is needed to find the problem!
I POSTED! "MOST likely! some liquid has been spilled on the gear shifter! IT is a computer & computers don't like liquids!" That doesn't mean that you should replace ANY part including the shifter or brake lamp switch until those systems are scanned for codes! I didn't IMPLY that you should go out & buy a new shifter W/O having the problem diagnosed by a MB expert! I alway suggest that the problem is diagnosed PROPERLY.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#9
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I have the same problem with my 2000 S500!!
Quote:
I replaced the brake lamp switch and the car is still stuck in park! So how do I go about troubleshooting the CAN side? I have the Mercedes-Benz WIS service manual, what should I be looking for? I can't afford to pay 1000's on a new shifter so please tell me it could possibly be somethign else! |
#10
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with the new switch do the brake lights work? where did you get the switch? send me your vin number, i will see what i can find in wis also and direct you to helpful areas |
#11
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Ok here we go..
My VIN is: WDBNG75J7YA059580
But how come when I enter that VIN into my WIS nothing will come up. I have to manually select it. By the way, my friend works at Kragen and he told me he could get an ABS-Airbag scanner for about half, so I was thinking of buying it, using it and then just selling it on Ebay for a small profit or break even. But I should be able to trouble shoot the problem with that right?? |
#12
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Enter it like this and it will recognize it WDB2201751A059580 where are you? i doubt the kragen scanner will do you any good, what about the other questions i asked?
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#13
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Hey you found something!
I'm in Sacramento, CA
Well as for your other questions.. I got the brake lamp switch straight from the dealership. I just checked if my brake lights are working and they are NOT. When I step on the brake there are NO brake lights. This is even after I replaced the brake lamp switch. So where do we go from here? |
#14
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Quote:
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#15
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The switch is installed correctly..
There's really no way you can install it wrong. There's two different connector pins that fit either on top or bottom. I even installed my old one again and the brake lights still do not come on when applying the pressure on the brake..
So this obviously is a brake problem.. What makes you think the Kragen brake scanner won't work? Is my only option to get the car towed to a mercedes shop? |
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