SOS Warning Light (after Clarion deck install)

B. Santos · 11-23-2009, 11:08 AM

Hey everyone,

I was wondering if there's anyone out there that can help me with a situation.

I have a 2008 BMW 335i with Logic-7 (non I-drive) and I recently installed a 7-inch Clarion flip-out (single din). Now I have a problem, the SOS warning light on the dash is constantly on, however, it still does work. I know it works because I pressed it on purpose just to test it out.

I was wondering if there is a way to get rid of this warning light without having to go to the dealership because I know they'll say its because of the deck.

On a side note, I know that the deck doesn't void warranty because I asked a representative at the dealership and he said no it doesn't.

Can anyone please help me with this?

Thanks,
Brandon

kmarei · 11-23-2009, 11:57 AM

did you do any work in the trunk?

B. Santos · 11-23-2009, 12:00 PM

Yes. We ran new speaker wire from the OEM amp to the front of the after market deck.

Terrance28 · 11-23-2009, 12:02 PM

Pics of the install.

Technic · 11-23-2009, 12:10 PM

Quote:

Originally Posted by B. Santos

Hey everyone,

I was wondering if there's anyone out there that can help me with a situation.

I have a 2008 BMW 335i with Logic-7 (non I-drive) and I recently installed a 7-inch Clarion flip-out (single din). Now I have a problem, the SOS warning light on the dash is constantly on, however, it still does work. I know it works because I pressed it on purpose just to test it out.

I was wondering if there is a way to get rid of this warning light without having to go to the dealership because I know they'll say its because of the deck.

On a side note, I know that the deck doesn't void warranty because I asked a representative at the dealership and he said no it doesn't.

Can anyone please help me with this?

Thanks,
Brandon

Try unplugging the TCU in the trunk.

B. Santos · 11-23-2009, 12:10 PM

Alright, I'll get those pictures asap.
The only work that was done in the trunk was the obvious power and ground from the after market amp (because there is a subwoofer too) to the battery and then we ran the according wires from the OEM amp to the front of the car. The REM wire is running down one side of the car opposite of the RCA's so there's no noise interferance..

B. Santos · 11-23-2009, 12:12 PM

This may be a stupid question Technic, but what is the TCU?

ct335i · 11-23-2009, 05:07 PM

TCU stands for telematic control unit. It's located in the trunk. You have to remove the trunk carpet and you will see it.

B. Santos · 11-23-2009, 05:19 PM

Alright I will do that. Is that for sure the problem?

kmarei · 11-23-2009, 05:26 PM

Quote:

Originally Posted by B. Santos

Alright I will do that. Is that for sure the problem?

that's why i asked if you did any work in the trunk
its where the unit on the left is on this pic
you have to lift out the entire trunk mat to see it, its in the back

B. Santos · 11-27-2009, 01:50 PM

Oh no, we didn't touch either of those modules.
The only work that was done in the trunk was running speaker wire (Monster home theater HD wire) from the OEM amp wires. We took out the harness from the OEM amp and connected speaker wire from there.

I don't have the module on the left of the pic, I do have the one on the right, however.

fdiprete · 11-28-2009, 08:48 AM

um - did you replace the factory head unit with a clarion?
the factory head unit is the most bus controller.

srcstc · 11-28-2009, 10:04 AM

If you relocate the stock radio to the trunk...

http://www.e90post.com/forums/showthread.php?t=319976

and extend the optical wires, that will make the sos light go away.

http://www.realoem.com/bmw/showparts...78&hg=61&fg=15

You need:

(2) 61120142318 (#1 in the diagram)
and
(2) 61136901846 (#3 in the diagram)

11-23-2009, 11:08 AM	#1
B. Santos Bamboo Tattoo Studio 2 Rep 7 Posts Drives: 2008 BMW 335i Join Date: Feb 2008 Location: Mississauga, Ontario iTrader: (0)	SOS Warning Light (after Clarion deck install) Hey everyone, I was wondering if there's anyone out there that can help me with a situation. I have a 2008 BMW 335i with Logic-7 (non I-drive) and I recently installed a 7-inch Clarion flip-out (single din). Now I have a problem, the SOS warning light on the dash is constantly on, however, it still does work. I know it works because I pressed it on purpose just to test it out. I was wondering if there is a way to get rid of this warning light without having to go to the dealership because I know they'll say its because of the deck. On a side note, I know that the deck doesn't void warranty because I asked a representative at the dealership and he said no it doesn't. Can anyone please help me with this? Thanks, Brandon Last edited by B. Santos; 11-23-2009 at 11:45 AM..
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11-23-2009, 11:57 AM	#2
kmarei Major General 750 Rep 6,875 Posts Drives: 2014 BMW 435i X-drive Join Date: Jul 2008 Location: Reston, VA iTrader: (34) Garage List 2018 Audi RS5 [0.00]	did you do any work in the trunk?
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11-23-2009, 12:02 PM	#4
Terrance28 Brigadier General 114 Rep 3,334 Posts Drives: Crimson Red E92 Join Date: Nov 2007 Location: Killeen, TX iTrader: (17)	Pics of the install. __________________ Mods list got too long, lets just say more than enough.
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11-23-2009, 12:10 PM	#6
B. Santos Bamboo Tattoo Studio 2 Rep 7 Posts Drives: 2008 BMW 335i Join Date: Feb 2008 Location: Mississauga, Ontario iTrader: (0)	Alright, I'll get those pictures asap. The only work that was done in the trunk was the obvious power and ground from the after market amp (because there is a subwoofer too) to the battery and then we ran the according wires from the OEM amp to the front of the car. The REM wire is running down one side of the car opposite of the RCA's so there's no noise interferance..
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11-23-2009, 12:12 PM	#7
B. Santos Bamboo Tattoo Studio 2 Rep 7 Posts Drives: 2008 BMW 335i Join Date: Feb 2008 Location: Mississauga, Ontario iTrader: (0)	This may be a stupid question Technic, but what is the TCU?
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11-23-2009, 12:00 PM	#3
B. Santos Bamboo Tattoo Studio 2 Rep 7 Posts Drives: 2008 BMW 335i Join Date: Feb 2008 Location: Mississauga, Ontario iTrader: (0)	Yes. We ran new speaker wire from the OEM amp to the front of the after market deck.
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11-23-2009, 05:07 PM	#8
ct335i BMW 4 LIFE 121 Rep 468 Posts Drives: MY22 M3xDrive Join Date: Jun 2007 Location: Toronto iTrader: (0) Garage List 2022 BMW M3 [0.00]	TCU stands for telematic control unit. It's located in the trunk. You have to remove the trunk carpet and you will see it. __________________ 2022 BMW M3 xDrive \| Isle Man of Green \| 19inch/20inch M Forged Wheels, Double-Spoke 825M, Orbit Grey \| Ultimate Package
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11-23-2009, 05:19 PM	#9
B. Santos Bamboo Tattoo Studio 2 Rep 7 Posts Drives: 2008 BMW 335i Join Date: Feb 2008 Location: Mississauga, Ontario iTrader: (0)	Alright I will do that. Is that for sure the problem?
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11-27-2009, 01:50 PM	#11
B. Santos Bamboo Tattoo Studio 2 Rep 7 Posts Drives: 2008 BMW 335i Join Date: Feb 2008 Location: Mississauga, Ontario iTrader: (0)	Oh no, we didn't touch either of those modules. The only work that was done in the trunk was running speaker wire (Monster home theater HD wire) from the OEM amp wires. We took out the harness from the OEM amp and connected speaker wire from there. I don't have the module on the left of the pic, I do have the one on the right, however.
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11-28-2009, 08:48 AM	#12
fdiprete First Lieutenant 23 Rep 339 Posts Drives: 2014 512i xdrive Join Date: Jul 2008 Location: NH iTrader: (2)	um - did you replace the factory head unit with a clarion? the factory head unit is the most bus controller.
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11-28-2009, 10:04 AM	#13
srcstc Major 88 Rep 1,365 Posts Drives: 2016 Camaro 2SS Join Date: Sep 2006 Location: NJ iTrader: (9)	If you relocate the stock radio to the trunk... http://www.e90post.com/forums/showthread.php?t=319976 and extend the optical wires, that will make the sos light go away. http://www.realoem.com/bmw/showparts...78&hg=61&fg=15 You need: (2) 61120142318 (#1 in the diagram) and (2) 61136901846 (#3 in the diagram)
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