Quote:
Originally Posted by Bmwe5320023.0
X5chemist
How's your progress with the drain issue?
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Feeling like this BMW owner. 
Spare parts in the back and no time to install them. I did have a little time to spare last week. I decided to replace the thermostat. I felt is was more important since premium fuel just went above $4.00 here. The engine reaches operating temp really quick. MotoRad and Mahle thermostats behave differently. Before codes, MotoRad had the needle straight up and down. The Mahle runs a frog hair over the middle. It's just enough to notice it. MPG was down a bit but should return to normal and maybe better.
A new DME is here. Thanks to E46 Fanatics and TheFixer, an EWS delete DME source was found. I'll keep the OEM DME for a spare. It can be coded later. The EWS starter wires will have a hidden switch to avoid cranking.
Fighting two separate fuses with amp draws is annoying. Electrical troubleshooting is not my best skill. I'm learning as I go. A FoxWell and Pine Hallow Diagnostics has taught me a lot. Not to mention the three hours paid to a BMW specialty shop which confirmed my amp diagnosis. They offered two solutions but no guaranteed fixes. I'm deleting one permanently. The other one, I'll have to check three switches.
Before I remove the EWS, I do plan to troubleshoot it. I'll measure amps on each EWS wire after a sleep command. Knowing which wire has draw is knowledge to pass to other owners.