Used Tranny in Benz? Yes or No?
So, I have a 2006 C230 and my first gear has been slipping, ONLY when started up in the morning or after its been sitting for a while. Yes, I had a transmission flush about 4 months ago and it was doing that prior to my flush. So It just has a hard time getting into 1st. So i had a transmission shop drop the Tranny pan and the liquid looked like chocolate milk. So i sent the pictures of the fluid to my usual Mercedes repair shop and he said My coolant is leaking into my transmission fluid, he said he has seen this a couple times with my model and such. So he said that i probably need a new radiator and then he'll do another flush but when he takes off the transmission pan he will see if there is debris or not and if there is then he said i will more than likely need a new transmission. So, like anyone else here, i dont want to pay $4,000-8,000 for a new transmission. So i found one online from a used car shop and they said they had one that has 60,000 miles on it for $1,180 dollars. But i dont know if i should trust these out of state auto shops, wonder if it doesnt work? wonder if i put it in my car and then it goes out within a year? you know? my car only has 84,000 miles on it and in really good shape except these repairs. Should i just bag the car? or should i fix it up and drive it 150,000 miles plus and get my moneys worth out of it? If anyone could give me advice that'd be great. Thank you!