These electronics are KILLING ME!

[Ladydragonz]

I am so lost. I keep getting SOS malfunction, ac won't blow, bluetooth module consistently off, no AUX, no SAT radio, no power to car outlet/USB under armrest, and magically will come back. I have replace the FSU under the glovebox twice! I am going to check fuses later today. I am so tired of this issue reappearing, I was floating nicely for 4/5 months everything working and on the hottest day about a month ago everything went out. I am getting ready to take it to a dealer but so far I've done everything on my little 1 myself and am not ready just yet to take it in. ANY help is greatly appreciated. >W<

[MightyMouseTech]

Has the battery cable recall been done?

[Ladydragonz]

Negative, I'm unsure as to what that even is.

[MightyMouseTech]

Originally Posted by Ladydragonz

Negative, I'm unsure as to what that even is.

Well, that would be a good place to start.

[Ladydragonz]

Originally Posted by MightyMouseTech

Well, that would be a good place to start.

Guess I will be looking into that STAT thanks

EDIT: scheduled my appointment to get that issue corrected

[Ladydragonz]

Originally Posted by MightyMouseTech

Well, that would be a good place to start.

Work done, still having this issue. Any ideas?

[Duesentrieb]

You still haven't answered my question at the other thread.
Without the error codes it will be very difficult to help you.

Greetings

Daniel

[Ladydragonz]

Originally Posted by Duesentrieb

You still haven't answered my question at the other thread.
Without the error codes it will be very difficult to help you.

Greetings

Daniel

I don't have my tool on me right now, going to read the codes as soon as I get home. I haven't forgotten!

[Duesentrieb]

Ok
I hope it will bring light into the darkness.

[Dackelone]

I would also check the connector(loose?) at the MULF com box under the trunk liner. Its in the middle center of the trunk area. While your in there also check the battery terminals for tightness.

Have a dealer run your VIN for any open recalls.

[MightyMouseTech]

Originally Posted by Dackelone

I would also check the connector(loose?) at the MULF com box under the trunk liner. Its in the middle center of the trunk area. While your in there also check the battery terminals for tightness.

Have a dealer run your VIN for any open recalls.

Also check for any water in and around the MULF.

[Ladydragonz]

Originally Posted by Duesentrieb

You still haven't answered my question at the other thread.
Without the error codes it will be very difficult to help you.

Greetings

Daniel

There are absolutely no codes thrown right now I just checked.

[Ladydragonz]

Originally Posted by MightyMouseTech

Also check for any water in and around the MULF.

No water around the MULF or Bluetooth module checking all the connectors.

[Ladydragonz]

Originally Posted by Dackelone

I would also check the connector(loose?) at the MULF com box under the trunk liner. Its in the middle center of the trunk area. While your in there also check the battery terminals for tightness.

Have a dealer run your VIN for any open recalls.

No connectors loose

[12vElectronics]

Subscribed.

The iDrive in my 08 128i is terrible as well.

[Duesentrieb]

Mhhh...
Your battery is ok? How old is it?

[Ladydragonz]

Originally Posted by Duesentrieb

Mhhh...
Your battery is ok? How old is it?

Checked the battery voltage yesterday everything good, checked the alternator, good. This issue is driving me NUTS. I actually had a spare TCU from a buddy and swapped it out, and put my original one back in. NOTHING. In other news I fixed my AC. FSU is fine, the clip needs to be replaced thats going into the FSU, I had only changed the smaller black clip.

[Duesentrieb]

Your car has a bistable relay. Maybe it's sticky. It's situated in the fuse box. You can see it at your last picture. It's between the black relay and the 60A fuse (above the torx screw).
I don't know if it's exchangeable, because it's situated on the PCB of the fuse box.

You can check the black relay too.

[Ladydragonz]

Originally Posted by Duesentrieb

Your car has a bistable relay. Maybe it's sticky. It's situated in the fuse box. You can see it at your last picture. It's between the black relay and the 60A fuse (above the torx screw).
I don't know if it's exchangeable, because it's situated on the PCB of the fuse box.

You can check the black relay too.

What exactly am I pulling the black relay or the 30 amp fuse.

[brytom]

Does your car have a third module mounted under combox?

[Duesentrieb]

It's a 2008 135i. There isn't a combox available.
As you can see on the picture: TCU, MULF and SAT radio is installed.

[brytom]

Originally Posted by Duesentrieb

It's a 2008 135i. There isn't a combox available.
As you can see on the picture: TCU, MULF and SAT radio is installed.

Ah yes. Sorry. So used to doing combox retrofits at work, got it mixed with the TCU.
I only see two modules. Photo is maybe 100 pixels by 100 pixels and I can't click on it. So I can't see much. TCU on the right, Sat radio on the left judging by the pink connector?