Thanks so much for the heads up. s! So on the fluid I thought it was 45c when making sure the fluid was right, is that not the case? Fortunately for the small amount I tested seems to be great so far on shifting but will drive it a bit more.I use shell 134 for the older 7 speed, no issues.
Good thread, that's a big job for DIYers.
If the car shifts after the repair, then you've done your job right. Pay attention to the shifting, it should be very smooth and the engine rpm should drop immediately between shifts. If it flares, jerks, slams or otherwise act un-Mercedes like, you may need to do the specific gear adaptations. SDS has this, some high end autel scanner have it.
Regarding fluid level, fill with car running and fill-up until it dribbles out when you remove the hose... And then it's done. No need to double check.
Fluid temp should be 80c when setting fluid level. Either SDS/autel, or ir temp gun at bottom of oil pan should do it.