So they got the codes for the other 3 after you cleared them? Either way, neither one of those things is going to cause the tranny issue. Someone correct me if I'm wrong.

If it were mine, I'd save the money until it breaks. The trans issue will come back. You've probably got a bad conductor plate. That's the FIRST and CHEAPEST place to start, and since you have to drain about 3liters of fluid when changing it, you should do the full fluild and filter change then as well (OEM MB fluid only!!!)

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former: 83 300D, 97 C230, 93 400E

current: 08 C300 Luxury , 92 500SL