Bought a Flood Salvage - Of Course I Need Help!

[Soggy335i]

Hey guys, I know when the topic of flood cars is brought up the overwhelming response is dont walk, Run away! Well I just did the opposite, purchased a 2008 335I freshwater flood vehicle... I got it home and it now turns over and has working dash, doors, mirrors, etc. I just need it to fire. It came missing the DME, but it turns over without it (this is normal correct?). I figured if I just bought a new key, cas, and dme set it would get me a little closer, but the opposite has happened. With the new CAS, key, and DME it wont turn over at all, even when I take the DME out it still wont turn over. If I swap the old CAS in and use the old key, its back to turning over. Any thoughts?

[NFerber]

I have no idea, but good luck. Just hope it doesn't drain your wallet.

[Soggy335i]

Haha "drain" I see what you did there. Thanks mate

[tbartman1725]

Interesting choice bud. Good luck with it.

[Das Omen]

I'm completely stumped, but curious how one would fix this.

[Soggy335i]

Interesting choice bud. Good luck with it.

Thank ya, Ill need it

- - - Updated - - -

Ill try and resynchronize the cas key and dme when the cable comes in, but checked today and had good cylinder compression throughout

[d21spike]

Surprised it will turn over without the DME but regardless here's how I'd look at it.

Your DME will be responsible for fuel/spark
Your CAS will be responsible for anti-theft/starting

Assuming you got matching DME/CAS/Key (from same car) that should be ok. Since you were able to turn it over on the previous setup, it would
be a good assumption that your IBS is probably good. I'd start with something that is able to pull BMW codes, chances are the CAS isn't happy
about something. There is also a relay in the CAS that can go bad and prevent turning over. This would mean your donor one needs fixed. It's
usually coupled with A0B3 and/or A0B4 codes. This is shown here http://www.e90post.com/forums/showpost.php?p=19079513&postcount=36

This would be where I'd start. Once you get it turning over then you can proceed troubleshooting other issues if it still doesn.t fire


Thank ya, Ill need it

- - - Updated - - -

Ill try and resynchronize the cas key and dme when the cable comes in, but checked today and had good cylinder compression throughout

[Thaniel]

Yes to the above. Read through this section of the forum http://www.bimmerforums.com/forum/forumdisplay.php?233-Diagnostic-Software
I think you will need DIS to do this. (PA soft doesn't seem to work with E90's).

[d21spike]

Carly for BMW will pull them, as you mentioned although dated DIS can to, then INPA, ISTA/D, or any scanner more advanced than over the counter at your local parts store.


Yes to the above. Read through this section of the forum http://www.bimmerforums.com/forum/forumdisplay.php?233-Diagnostic-Software
I think you will need DIS to do this. (PA soft doesn't seem to work with E90's).