E91: Do I have a TCU or MULF?

jezzy · 06-24-2014, 09:33 PM

Hi guys,

Need your help here. I've got an 06 325 XI E91 wagon.

This is the options I have:

idrive
voice control
AUX in in armrest

No USB, No bluetooth, no SOS button, no phone.

I've looked under my carpet in the trunk, 2 empty spots.

Rear left corner, I can open it and it's got my manuals and I believe a CD changer location (also empty).

Question is, do I have a TCU or MULF?

I'm upgrading to CIC, parts coming in as we speak. Ordered a combox also. I believe it'll be installed under the floor in the trunk, right hand spot correct?

I also ordered a sirius unit, does this fit into the cd changer location?

thanks for your help!

ctuna · 06-25-2014, 12:08 AM

TCU no mulf in 06 at least in the US
If you don't have bluetooth phone and voice control you
probably don't have a TCU or Mulf either.
The following document shows the TCU location.

http://www.e90post.com/forums/attach...2&d=1260829447

A TCU or Mulf would be on the right side.

You are going to have to do some tricky programming to get the car to accept
those new units because of the build date.

terminator2k2 · 06-25-2014, 02:41 AM

Hi there as was said above , you have no bluetooth so it's a big possibility you have no tcu. You definitely wouldn't have a mulf, the retrofit is possible as I've installed a cic and combox to replace a tcu and ccc nav in my 06 320d. Check in your boot to see if you have the wiring already there for the tcu. If not you would have to make up a loom for the new combox aswell as running the optical cables to the boot area.

ctuna · 06-25-2014, 05:19 AM

What kind of programming did you do ?
To get the old car to accept new equipment.

jezzy · 06-25-2014, 05:49 AM

Thanks guys. I do have pre wiring for the phone/bluetooth in the trunk. Right side under floor has wiring. So prepared for mulf or tcu. Ive ordered a bracket and combox and wiring adaptor.

I wasnt sure if the tcu woukd be elsewhere in the car. I have voice control so I thought I'd have one!

terminator2k2 · 06-25-2014, 07:28 AM

Quote:

Originally Posted by ctuna

What kind of programming did you do ?
To get the old car to accept new equipment.

just change the date in the cas ecu and add 6VA,6VC ,6FL, 6NR, 6NF , 644 , 614,615

removed 612 and added +TELD I think it was to stop sos error due to assist/tcu being removed.

recoded cic , combox and kombi, all up and running.....

I also run new cables to combox as I didn't have 6fl.

WRichieX · 06-25-2014, 08:31 AM

Quote:

Originally Posted by jezzy

Thanks guys. I do have pre wiring for the phone/bluetooth in the trunk. Right side under floor has wiring. So prepared for mulf or tcu. Ive ordered a bracket and combox and wiring adaptor.

I wasnt sure if the tcu woukd be elsewhere in the car. I have voice control so I thought I'd have one!

So you don't have a silver module in the trunk underneath the lining? If you have VC and pre-wired, I was under the assumption that you have to have a module that controls these. I have 6fl, vc, nav and prewired for phone. But I have an MULF. I just did a BT retrofit a couple weeks ago.

Also, I was under the assumption that combox only works with CIC.

Edit: I see you're doing a CIC upgrade. Nice!!!

jezzy · 06-25-2014, 10:42 AM

I found it odd too. I was sure to find a mulf or tcu in my trunk. I'll open up a few more panels. I have a feeling its on the left side of my trunk wall beside my cd changer location. I did put my hand inside but didnt feel a unit. Time to dismantle!

06-24-2014, 09:33 PM	#1
jezzy Major 35 Rep 1,068 Posts Drives: 06 E91 325xi Black Wagon Join Date: May 2014 Location: Montreal, Canada iTrader: (19)	E91: Do I have a TCU or MULF? Hi guys, Need your help here. I've got an 06 325 XI E91 wagon. This is the options I have: idrive voice control AUX in in armrest No USB, No bluetooth, no SOS button, no phone. I've looked under my carpet in the trunk, 2 empty spots. Rear left corner, I can open it and it's got my manuals and I believe a CD changer location (also empty). Question is, do I have a TCU or MULF? I'm upgrading to CIC, parts coming in as we speak. Ordered a combox also. I believe it'll be installed under the floor in the trunk, right hand spot correct? I also ordered a sirius unit, does this fit into the cd changer location? thanks for your help!
	Appreciate 0 Tweet Quote

06-25-2014, 12:08 AM	#2
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	TCU no mulf in 06 at least in the US TCU no mulf in 06 at least in the US If you don't have bluetooth phone and voice control you probably don't have a TCU or Mulf either. The following document shows the TCU location. http://www.e90post.com/forums/attach...2&d=1260829447 A TCU or Mulf would be on the right side. You are going to have to do some tricky programming to get the car to accept those new units because of the build date. Last edited by ctuna; 06-25-2014 at 12:16 AM..
	Appreciate 0 Quote

06-25-2014, 02:41 AM	#3
terminator2k2 First Lieutenant 17 Rep 320 Posts Drives: 2006 e90 Join Date: Jun 2012 Location: uk iTrader: (1)	Hi there as was said above , you have no bluetooth so it's a big possibility you have no tcu. You definitely wouldn't have a mulf, the retrofit is possible as I've installed a cic and combox to replace a tcu and ccc nav in my 06 320d. Check in your boot to see if you have the wiring already there for the tcu. If not you would have to make up a loom for the new combox aswell as running the optical cables to the boot area.
	Appreciate 0 Quote

06-25-2014, 05:19 AM	#4
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	What kind of programming did you do ? What kind of programming did you do ? To get the old car to accept new equipment.
	Appreciate 0 Quote

06-25-2014, 05:49 AM	#5
jezzy Major 35 Rep 1,068 Posts Drives: 06 E91 325xi Black Wagon Join Date: May 2014 Location: Montreal, Canada iTrader: (19)	Thanks guys. I do have pre wiring for the phone/bluetooth in the trunk. Right side under floor has wiring. So prepared for mulf or tcu. Ive ordered a bracket and combox and wiring adaptor. I wasnt sure if the tcu woukd be elsewhere in the car. I have voice control so I thought I'd have one!
	Appreciate 0 Quote

06-25-2014, 10:42 AM	#8
jezzy Major 35 Rep 1,068 Posts Drives: 06 E91 325xi Black Wagon Join Date: May 2014 Location: Montreal, Canada iTrader: (19)	I found it odd too. I was sure to find a mulf or tcu in my trunk. I'll open up a few more panels. I have a feeling its on the left side of my trunk wall beside my cd changer location. I did put my hand inside but didnt feel a unit. Time to dismantle!
	Appreciate 0 Quote