[SyNtAxx]

Hello all,

I have a new to me 2008 BMW 335XI Coupe with about 57k miles on it. I'm trying to sort out some issues that have cropped up. I have done quite a bit of searching and cant seem to find the exact symptoms I have.

What works:

Sat Radio
Navigation
FM Radio
Bluetooth works and I can pair my Galaxy S9

What Doesn't Work:

AUX/USB

Codes/Warnings:

SOS Malfunction (Popped up shortly after I got the car)

S 0112 : No Communication possible with ULF-SBX-H
00A36D : TCU Emergency Call button open circuit
00A37D : TCU Fault Emergency Speaker
00A382 TCU: Fault microphone 1

Tools at my disposal:

BMW Standard Tools (A lot of these tools seem scary to me as a noob)
ISTA D
BMW Protool
Bimmergeek cable


Given the above information and my incomplete knowledge about modules that could or should be in my vehicle in any combination I am at a loss on where exactly to begin troubleshooting. I'm aware the TCU seems to fail quite a bit and may need replacing, apparently just to satisfy my desire to not have that stupid warning light. I have found a suitable replacement module on ebay.

However, S 0112 : No Communication possible with ULF-SBX-H is where i'm confused. Is my car supposed to have that module? Is that module integrated into the TCU and has failed? I suspect perhaps the car simply is just missing the unit and should be installed given the below cables I found unused along with the jumpered MOST optic connection?

When looking at the part on a vendor site it states the following:

" For vehicles equipped with Bluetooth only, can also be used for retrofitting purposes"

Any help/guidance to a new member/owner would be greatly appreciated, I do take the time to search and try and help myself before asking for help.

Thanks,

[Hoody007]

What are the factory installed options on your car?

[ctuna]

the ulf or as we call it here the Mulf 2 hi module that does USB and Aux
if often under the TCU.

diagnostic manual ista/inpa
https://bimmerprofs.com/diagnostics-inpa-part-1/
https://www.google.com/url?sa=t&rct=...xo19teM9vkTF-C
https://www.google.com/url?sa=t&rct=...7x8H3pN8h1fMuF
https://www.bimmerforums.com/forum/s...-P-actually-do

It might be a good idea to use Inpa to read the modules you have.
the first part of the bimmerprofs link tells you how to do this.
Under functional jobs.

If you have a working Mulf 2 Hi its all you need for bluetooth phone
usb and aux . Since nobody supports 2g anymore the TCU is now
useless. If you want to do this you will have to look up the threads
that describe how to do this.

http://www.e90post.com/forums/showthread.php?t=1181654

http://www.e90post.com/forums/showthread.php?t=1126467



https://www.google.com/url?sa=t&rct=...0LVdA0YQ86XFOG

[SyNtAxx]

Originally Posted by Hoody007

What are the factory installed options on your car?

Here are the codes for installed options based on VIN Decoder:

Vehicle options
S1CAA Selection of COP relevant vehicles
S203A 4-wheel drive
S205A Automatic transmission
S249A Multifunction f steering wheel
S2KGA BMW LA wheel V-spoke 188 / All Season
S2VBA Tire pressure display
S2XAA Sport steering wheel with shift paddles
S319A Integrated universal remote control
S322A Comfort access
S403A Glass roof, electrical
S430A Interior/outside mirror with auto dip
S431A Interior mirror with automatic-dip
S441A Smoker package
S459A Seat adjuster, electric, with memory
S464A Ski bag
S481A Sports seat
S488A Lumbar support, driver and passenger
S494A Seat heating driver/passenger
S4ABA Fine wood trim burr walnut
S4NAA Interior mirror with digital compass
S502A Headlight cleaning system
S520A Fog lights
S521A Rain sensor
S522A Xenon Light
S524A Adaptive Headlights
S534A Automatic air conditioning
S544A Cruise control with brake function
S563A Light package
S5GAA Preparation alarm system
S609A Navigation system Professional
S620A Voice control
S639A Preparation f mobile phone cpl. USA/CDN
S645A BMW US Radio
S655A Satellite tuner
S677A HiFi System Professional DSP
S694A Provisions for BMW 6 CD changer
S6FLA USB/Audio interface
S6UHA Traffic Information
S818A Battery master switch
S823A Hot-climate version
S845A Acoustic belt warning
S850A Dummy-SALAPA
S853A Language version English
S876A Radio frequency 315 MHz
S8SPA Control unit COP
S925A Dummy-SALAPA
S9AAA Outer skin protection

Thanks,

[SyNtAxx]

So I received me ebay TCU....plugged in and set VIN. No more SoS error. Aux..still doesn't work. So i can only assume I'm supposed to have that other module Mulf-high?

Thanks,