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Monolith · 11-27-2012, 02:24 PM

You can also disconnect the TCU and operate the transmission for testing purposes (you won't get all functionality). It sounds like you might have a combination of problems. BMW used a 55pin connection to the DME and TCU and also an 80pin connection in later models. They won't be swappable. I would disconnect the TCU from the side of the transmission and diagnose your mechanical issues first. If I remember correctly, you should get at least 2nd, third and reverse.

What procedure did you use to re-fill the transmission?

11-27-2012, 02:24 PM	#3
Monolith Senior Member Join Date: Oct 2008 Location: NJ Posts: 106 iTrader: (0) Photo Gallery	You can also disconnect the TCU and operate the transmission for testing purposes (you won't get all functionality). It sounds like you might have a combination of problems. BMW used a 55pin connection to the DME and TCU and also an 80pin connection in later models. They won't be swappable. I would disconnect the TCU from the side of the transmission and diagnose your mechanical issues first. If I remember correctly, you should get at least 2nd, third and reverse. What procedure did you use to re-fill the transmission? __________________ Mods: DASC, NickG Stage II DME software, 30# injectors, RRFPR removed, DISA Simulator, Secondary Air Pump relocated, bypass cooling hose removed, Fogged airbox, Bosch silver sparkplugs (F6DSR), Magnecore sparkplug wires (KV85), SeattleCircuit mpg adjuster circuit; Textar CeramicFusion brake pads; S/E/M auto trans selector with Euro software TCU; Royal Purple trans (MaxATF) & diff fluids; Koni FSD (F&R); Rogue RSMs; Strong Strut; Butt Strut; Bridgestone Fuzion ZR1 225/50/16 on Style 42's; hardtop; Footwell lighting; Interior lighting On/Off switchable; Euro intermittent wipers; Padded LeatherZ arm rests; Sisa Design Cabrio Wind Deflector;