I have a 2006 X3. Does anyone know of a service manual available? (I'm trying to figure out a DMTL leakage problem...)

Ugh... Bentley probably isn't detailed enough for what you're trying to do.

What are you trying to do, specifically? I may be able to help.

I'm continually getting a check engine light, and the OBD code is "DMTL: Leakage". I tried the easiest fix, replaced the gas cap, but no luck. The pump itself is about $100, so not too much, but it would be nice to have a real troubleshooting checklist to avoid the old shotgun replacement process...