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D4 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc

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Old 27th August 2024, 04:16 PM
Horrgakx Horrgakx is offline
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Default Understanding fault codes

Hi all - I have an intermittent amber 'general' warning light on the dash, the garage put it on their computer today and this is what it read. I'm hoping to get some (all?) of these repaired under warranty.


  • Do you think the O2 sensor would be a warranty part, or classed as consumable?
  • Same question for the pressure sensor
  • The Sunroof button - the sunroof works perfectly for tilt and slide. So I'm unsure why there's a problem
  • The rear passenger switch module - again the switches all work perfectly for seat adjustments etc.

Any advice?
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Old 28th August 2024, 09:22 AM
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Any advice?
You mention that there are no issues with either the sunroof or seat module. This is where VCDS, or ODIS that garages have would be an advantage, because the output you were given doesn't have any dates as to where the error codes were triggered. These could be old codes prior to your ownership, and the issues could have been dealt with prior. However, if the codes aren't cleared, they will remain there until they are. That's why when someone asks about a list of error codes, we tell them to save a copy of the codes, clear them all, drive the car for a bit and rescan. Then you investigate the codes that come back. In the long run, it saves time and more importantly money by not replacing working parts. I would check with the garage to see if they have any more data from the scan that they didn't include.

Personal opinion on the two sensors is they would most likely be classed as consumables on what is now a 9 year old car.
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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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Old 28th August 2024, 02:30 PM
Horrgakx Horrgakx is offline
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Codes were cleared about 2 months ago. He cleared them and it's booked in again in a week or two so will see what's fresh
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Old 29th August 2024, 10:07 AM
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Codes were cleared about 2 months ago. He cleared them and it's booked in again in a week or two so will see what's fresh
It will be interesting to see if the sunroof and seat errors resurface, especially since they're working fine.
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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

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

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
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