CLA SB Red First Care

Hello everyone, I’m relatively new here in the forum and I’ve already got a lot of tips and information from the forum. I got my CLA SB in red on Tuesday, because unfortunately I haven’t managed to get him to waxen yet he has already 400 km down and today it’s time to be. Thursday evening I had already washed him once with the Surf City Garage Shampoo “Pacific Blue” of course with 2 grit guart buckets and wash gloves. Today I wanted the varnish with the Prima A treat migo and then apply the Collonite 476. Now I don’t know if I should wash the car again with the shampoo from Surf City Garage or with Spüli? Maybe you could help me. Thank you Dennis