So I've been having a problem especially when it's colder that I have to start the car in neutral, but sometimes that won't even work neutral or park I have to actually get under my car I loosen the clip of the switch tighten back up you know just Jimmy it a little bit. Then it's fine for a little bit but I don't get why a new switch would be failing so early, unless it's the wiring to the switch itself that is making matters worse when its cold. Any help would be appreciated thank you

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1994 e320 (Charcoal and grey) 140, 000 miles