Quote:
Originally Posted by Versace
No codes, nothing!!
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When you say you've no codes, do you mean there are no error codes for any of the four doors (since each door has its own control unit) or no error codes at all for the car?
It seems rather odd that all four door control units would get the same problem at the same time, and since you also mention that they intermittently work, I'd suspect another control unit. Specifically, the sunroof electronics control unit (J528) as that is where the ambient light data is stored. Using VCDS, check address 38 for possible errors.
Even if there are none, I'd be inclined to remove the sunroof unit and check the electrical connections to ensure they're all seated correctly, and then check to see if there is any moisture or corrosion in the contacts. The final item I'd check would be the lighting profile button in front of the sunroof rotary knob (between the reading light buttons) to see if it was working correctly and wasn't sticking in position, as you can use that to alter the light intensity.
Check out the following SSP found on the D3 Tech Dump thread for more information (from page 68):
53-SSP 287 Audi A8 03 - Electrical Components
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts
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
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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
My DIY jobs -
Fan Jet Windscreen Washers,
Retrofitted Electric Side Blinds