Bad Decision or Not?

[ccs2183]

Hi you guys I have a 99 Q45 (Y33) and was wondering if I did the right thing or not. I flushed my transmission at 150,000 miles for the first time since I owned the car and I have owned the car since about 120,000. I dont know what the previous had done but I did hear that sometimes it was bad for a person to flush their transmission when its never been flushed before because of loose necessary parts being flushed out causing early slippage. I dont know if that is common on Q45s but could that be the case with my situation?

[qship96]

what did the old fluid look like? color,smell,etc.Did you drop pan and clean/replace strainer? how did they look?If pan/filter not serviced during flush,might want to do so,especially if fluid looked bad-did they just exchange the fluid,or add a chemical cleaner to circulate before the exchange?

[maxnix]

BG or Sun machine? Complete mechanical fluid exchange?

Always good to do, but cannot restore an abused transmission, only extend its service life by renewing the fluid and some cleaning with a chemical flush.