Need help please.

I had my friend replace the Spark Plugs, Radiator, valve cover gaskets, oil cooler. after doing so, I got all those codes:

p2001
p2600
p2315
p2601
p2314
p2316
p2500

I tried to take it to a non MB dealership for a Transmission flush. They won't do it because all these codes came up. any help?

2002, 85k on it.

1. have your friend fix it
2. get a code reader that has the description

took it to the dealer. no big problems other than 505 for a transmission flush.

Sounds like he forgot to plug in some coil packs or plug wires are crossed or not plugged in all the way. Does the car run?