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Discussion Starter #1
Hello All,

I read through most of the threads regarding the shifter module and have a couple of questions for those who are familiar.

FYI, it's a 00 S430

About a week ago my shifter decides to stay in park and after trolling around this site I find out that it could either be my brake switch or the little black tab that's part of the lock mechanism in the module itself. Since I could hear the lock mechanism disengages every time I stepped on the brake I assumed it wasn't the brake switch.

So long story short, I yank out the shifter and find the little black tab had broken inside and quickly remove it. I realize I'm not all that comfortable with the fact that shifter can easily be placed into park or reverse with the slight of hand and quickly order a used shifter assembly that I find off another forum site. The numbers match my stock shifter assembly so I assumed that it was compatible with my car.

The piece arrives today and I replace my current shifter with the "new" one. Right away I notice that the brake switch not disengaging the lock mechanism and the shifter not functioning like normal only to assume that it may need to be reprogrammed? After coming to that conclusion, I place my "old" shifter back in and find out the car is not recognizing the "old" shifter either and it's not going out of 2nd or 3rd gear when I'm on the road. Possibly limp mode? But there are no malfunction indications.

So am I right to assume I need the new shifter assembly reprogrammed through MB? And what could cause the car not to recognize my old shifter?

Thanks guys.
 

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the shifter assembly is a control module that is on the engine can network. and yes its has to be initialized to the car. transport protection has to be removed. its something that the dealer has to do with das.
 

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Whilst it does need to be initiated with DAS, a specialist or indie can do it as well and may be a little cheaper than the dealer.
 

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Discussion Starter #4
thanks for the response guys, anyone know why the original shifter is acting the way it is? It use to indicate on the instrument panel whether it was on P,R,D..etc. right next to the clock, Now it's blank and not able to shift out of third gear.

I'll look into an indie repair person. Thanks everyone.
 

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thanks for the response guys, anyone know why the original shifter is acting the way it is? It use to indicate on the instrument panel whether it was on P,R,D..etc. right next to the clock, Now it's blank and not able to shift out of third gear.

I'll look into an indie repair person. Thanks everyone.
It might have different version code, that's why you need StarDiag to read & clear error code in case of mismatch.

The easiest is to reset the computer. Turn on the car, turn the steering wheel to the left all the way, then to the right all the way, might have to do it twice, to reset the computer.

I'm attaching the WIS here, in case you miss some of the step. Let me know if I could help any further
 

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Discussion Starter #6
It might have different version code, that's why you need StarDiag to read & clear error code in case of mismatch.

The easiest is to reset the computer. Turn on the car, turn the steering wheel to the left all the way, then to the right all the way, might have to do it twice, to reset the computer.

I'm attaching the WIS here, in case you miss some of the step. Let me know if I could help any further
Thanks so much. I tried to reset the computer and nothing changed. I'm planning to make an appointment with MB tomorrow or so as this is driving me nuts. I think when I switched the shifter assembly around it somehow reset itself. Not sure if that's even possible or worst yet I somehow blew the original shifter module.
 
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