E90 100k Maint question

Hello,

I have a few questions about 100k recommended maintenance. People recommend basically change all fluids (diff, trans, brake, coolant), clean VANOS solenoids, spark plugs.

I have the 100k maint plan and they did plugs at 96k. I now have 98k, is there a reason they didn't do the transmission? Is this not covered? I have called some local transmission shops and no one seems to recommend a flush, as it could destroy the transmission. Is this true? Should I do a flush or not? I plan to keep the car a while.

Can cleaning the VANOS solenoids do any harm? I saw a few tutorials, and most people who cleaned them seemed to end up posting that they had to replace them shortly after. Is this a symptom of the cleaning? Is this something I just shouldn't mess with? It seems like an easy job, and I would like to do it, but not if it will cause any harm.

Finally got a hold of someone at BMW. They definitely do not recommend a flush... none of this is covered under the maintenance plan

I had the extended maintenance for my x5...although they did not do a FLUSH at 100k, they did drain and refill the transmission, and replaced the pan with filter. There is a difference between "flush" and "drain". I had to advocate for this though, as the service advisor kinda didn't believe me at first...I think ALL maintenance items should be in i-drive, not just the most common items.

Originally Posted by CALLAWAY845

I had the extended maintenance for my x5...although they did not do a FLUSH at 100k, they did drain and refill the transmission, and replaced the pan with filter. There is a difference between "flush" and "drain". I had to advocate for this though, as the service advisor kinda didn't believe me at first...I think ALL maintenance items should be in i-drive, not just the most common items.

They told me they'd only do it if it was in iDrive and it is not for me. Should I insist?