2000 ML320 Transmission shift problems

[ely_glk]

I am an original owner of a 2000 ML320 with 80,000 miles. CEL codes P0170 & P0173 (fuel trim malfuction, left & right) were posted. No driveability problems. After researching, I decided to replace the MAF sensor & disconnected the battery for 30 minutes to drop the codes. I did not have the engine adaptations redone since the engine was running fine. I'm now starting to have rough shifting problems between 1&2 and 2&3 on medium and fast acceleration. Problem seems to get better after running for awhile, but still not real smooth. Tried shutting down & restarting, but no real effect. Transmission fluid & filter were changed at 75,000 by professionals. I did a 3,000 mile trip since the fluid change with no apparent shifting problems. There are no apparent leaks. Is there a relationship between not doing the engine adaptations and the rough shift problems or am I facing another problem with the ML320 transmission now? If a new problem, any suggestions from a troubleshooting point of view? Thanks

[stevebfl]

Modern cars don't like to lose battery power. You may have lost the transmissions adaptations. It should be read cleared and readapted both on the engine and trans and possibly a number of other controllers.

[ely_glk]

Thanks for the quick response. The transmission seems to have readapted itself after 3 days of driving. It is running as smoothly as before; however, a new problem has occurred. Neither the Auxilary Water Pump nor the fusebox blower motor are running. I understand that Relay K19 controls both units (Fuse #41 is fine). Since the relay is only $10, I'm thinking of replacing that. I also have read that the All Activity Module controls the on/off temps for the two. Is this true; if so, could the battery disconnect have cleared out these AAM comands?