This is possible, however I do not know how probable. I have never replaced one on a car. I guess the dealership needs to tell you why. I believe you are on the right track though. If your car is out of warranty, I think you will have to demand to speak with the factory rep to have the computer done under a "good will service". I hope all goes well, but you won't get anywhere without the factory guy there and being nice.
Thanks for the question

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Benzmac:
1981 280GE SWB
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