[davemonfl]

On my 2008 328i sedan there is a Harman Becker Bluetooth Handsfree Carkit MULF2-HI unit in the trunk and a BMW Professional Radio in the car but when I press the Menu button the Telephone option does not show up as a choice.

I checked the Fuses, disconnected the cables from the MULF2 for an hour and still no luck. I am going to disconnect the battery for an hour to see if that helps.

If not, I read that it might need re-coding? Any BMW coders in the Sarasota FL area that I might contact that know the Bluetooth?? Hate to bring it to the dealer for this.

[ptpending]

you need to disconnect all power(54-pin) and MOST cable from MULF, then connect only 54-pin and see if mulf emits red light from MOST socket

[davemonfl]

Originally Posted by ptpending

you need to disconnect all power(54-pin) and MOST cable from MULF, then connect only 54-pin and see if mulf emits red light from MOST socket

Ok, I did that and when I plug in just the 54-pin cable the MOST socket does have a red light for about 5 seconds then it turns off. Does that mean its good and it just needs coding? Should I try unplugging battery for an hour to see if that brings back telephone choice when pressing menu button?

[ptpending]

the you need to check if red light comes sometime from MOST jack which is connected to MULF
you can close car with disconnected MOST jack, let it sleep for 15 min, then open and check

[davemonfl]

ok did that and after closing the car for a half hour and opening back up the MOST port on the MULF does have the red light come on. It blinks a few times then stays lit.

[davemonfl]

First, thanks for all your help so far. Not sure what to do from here. I have the same model MULF2 lined up to buy so I can swap it out if you think my existing one is bad...

[ptpending]

sorry, i've used incorrect word "jack" instead of "plug"
in the second test you should look for the red light from plug which is connected to MOST jack on MULF
after that we can suppose if MOST ring is operational and HU can talk with MULF and MULF can talk to HU

[davemonfl]

Originally Posted by ptpending

sorry, i've used incorrect word "jack" instead of "plug" in the second test you should look for the red light from plug which is connected to MOST jack on MULF after that we can suppose if MOST ring is operational and HU can talk with MULF and MULF can talk to HU

ok did that and after closing the car for 20 minutes and opening back up the MOST plug does have the red light come on and blink as does the MOST port on the MULF.

So now we can assume that the MOST ring is operational and the HU can talk with the MULF and the MULF can talk to the HU.

Does this mean it just needs coding?

[ptpending]

but how this happened ?
you've used that option for some time and one day it disappeared ?
you've bought car and it was with that problem ?
because i haven't heard that MULF forgot its config, but he can die
the professional radio also didn't had such issues
business radio is not installed in US

[davemonfl]

Originally Posted by ptpending

but how this happened ?
you've used that option for some time and one day it disappeared ?
you've bought car and it was with that problem ?
because i haven't heard that MULF forgot its config, but he can die
the professional radio also didn't had such issues
business radio is not installed in US

Bought car used and did not have Telephone choice when pressing Menu button, USB and Aux work fine. I can buy a used MULF just like the one in my car for $40. Think that is a good thing to try?

I read that disconnecting battery for an hour can bring back Telephone choice too, haven't tried that yet....

[davemonfl]

Originally Posted by ptpending

but how this happened ?
you've used that option for some time and one day it disappeared ?
you've bought car and it was with that problem ?
because i haven't heard that MULF forgot its config, but he can die
the professional radio also didn't had such issues
business radio is not installed in US

Also when I bought the car only the MOST plug and the 52 pin blue plug were connected. Do I need to plug anything into the other end of the MULF?

[ptpending]

yes, bluetooth antenna and if MULF2 is MULF2 HIGH version, than HSD(sort of car USB) cable should be connected to other side

[davemonfl]

Originally Posted by ptpending

yes, bluetooth antenna and if MULF2 is MULF2 HIGH version, than HSD(sort of car USB) cable should be connected to other side

I checked my wire harness cables and the one that looks like the antenna cable to me doesn't fit because the one notch is in the wrong place. I read in another forum that a guy with the same issue just removed the white housing from the cable so that it would plug in and it worked for him so I did that. Still no Telephone option so I unplugged the blue 52 pin cable and MOST cable and left them out over night. Still no Telephone option.

Unplugging the battery for an hour still no Telephone option.

Just bought one on eBay, hopefully that will do it.....

[davemonfl]

Originally Posted by davemonfl

I checked my wire harness cables and the one that looks like the antenna cable to me doesn't fit because the one notch is in the wrong place. I read in another forum that a guy with the same issue just removed the white housing from the cable so that it would plug in and it worked for him so I did that. Still no Telephone option.....

I tried disconnecting the battery for an hour and even replaced the MULF2 with one from eBay and it still has no Telephone option. It must need to be coded I guess....

[ptpending]

i saw in your another thread that you have usb option and your VIN, so this clears all questions
you'll need to add mic and bluetooth antenna and code option
i can sell you mic and antenna

[davemonfl]

Originally Posted by ptpending

i saw in your another thread that you have usb option and your VIN, so this clears all questions
you'll need to add mic and bluetooth antenna and code option
i can sell you mic and antenna

Hey thanks for the info, didn't see your post until after I found mic and antenna on ebay. The cheapest guy I found in town wanted $120 to code so I'm going to give it a try myself, ordered a cable, etc.

From what I read all I have to do after installing the mic and antenna is use NCS to select E89 for the Chassis then add $644 in VO to CAS and NFRM. Then run SG_CODIEREN to the module 2URAD to reset the radio output to match with the car setting. Does that sound about right?

[ptpending]

yep, you'll need to code RAD and ULF module with $644 option

[davemonfl]

Originally Posted by ptpending

yep, you'll need to code RAD and ULF module with $644 option

When I run SG_CODIEREN to the module 2URAD to reset the radio output to match with the car setting it fails, I'm being told you need an Icom to reset 2URAD.

However, someone in another forum said I can just add $644 to MULF and 2URAD VOs with the DCAN KCAN cable I have. Does that make sense and do you know how that would be different then getting someone to reset 2URAD with an ICOM?

[ptpending]

Originally Posted by davemonfl

When I run SG_CODIEREN to the module 2URAD to reset the radio output to match with the car setting it fails, I'm being told you need an Icom to reset 2URAD.

However, someone in another forum said I can just add $644 to MULF and 2URAD VOs with the DCAN KCAN cable I have. Does that make sense and do you know how that would be different then getting someone to reset 2URAD with an ICOM?

i heard about this but thought this limitation is only for LCI radios