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Old 4th July 2024, 10:57 AM
Toblahoe Toblahoe is offline
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Default B&O tweeters won't rise but gears are fine

Hey all, been doing tonnes of little odd jobs on the S8 recently and managed to get a lot sorted aside from the tweeters.

Since buying the car both tweeters haven't raised or lowered, a VCDS scan shows a motor fault for both. Reading about the little gears I removed both and opened them up to discover that the gears are absolutely fine, no broken teeth at all.

So firstly, I couldn't seem to find any concise information, are the tweeters 12v? I have a "test" bench that can output power but only 12v, I wanted to see if I could manually apply power to see if the motors do indeed work.

Secondly, what else could prevent the tweeters from raising if the gears/motors are okay? I'm assuming one of the B&O control units in the boot.

Any help is much appreciated.
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  #2  
Old 4th July 2024, 01:03 PM
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steamship steamship is offline
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Do you still have the results from the VCDS scan showing the exact error? The previous owner may have disconnected the motors for the tweeters so they don't go up and down.

In terms of power requirements, check out the following PDF which has detailed information on the B&O system:

60-SSP 366 Audi Infotainment Systems ´05.pdf
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My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

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  #3  
Old 26th October 2024, 05:08 PM
Toblahoe Toblahoe is offline
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Apologies for the late reply Steamship

Code:
3 Faults Found:
03016 - Motor for Front Right Treble Speaker (V345) 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 5
                    Fault Frequency: 254
                    Reset counter: 43
                    Mileage: 106951 km
                    Time Indication: 0
                    Date: 2024.08.06
                    Time: 17:45:11

             Freeze Frame:
                    Voltage: 13.30 V
                    Temperature: 47.0°C
                    Bin. Bits: 00000100
                    Voltage: 13.00 V
                    Temperature: 52.0°C

03017 - Motor for Left Front Treble Speaker (V344) 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 5
                    Fault Frequency: 254
                    Reset counter: 43
                    Mileage: 106951 km
                    Time Indication: 0
                    Date: 2024.08.06
                    Time: 17:45:12

             Freeze Frame:
                    Voltage: 13.30 V
                    Temperature: 47.0°C
                    Bin. Bits: 00000100
                    Voltage: 13.00 V
                    Temperature: 52.0°C

03000 - Amplifier for Digital Sound Package (R184) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 6
                    Fault Frequency: 254
                    Reset counter: 43
                    Mileage: 106951 km
                    Time Indication: 0
                    Date: 2024.08.06
                    Time: 17:57:22

             Freeze Frame:
                    Voltage: 13.70 V
                    Temperature: 40.0°C
                    Bin. Bits: 00000100
                    Voltage: 13.50 V
                    Temperature: 46.0°C
                    Bin. Bits: 00000010
                    Bin. Bits: 00000000
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Current:
2007 S8 D3 5.2 V10 - Jap Import in Daytona Grey
2004 BMW X3 2.5i Manual (Old Workhorse)

Previous:
2009 S5 4.2 V8 - Phantom Black with Red leather interior
2006 A4 3.0tdi Manual - Black with Black Leather
2001 BMW 323ci 2.5i Manual
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