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D4 - Body and Exterior Bumpers, bonnets, glass, trims - Everything outside

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  #1  
Old 19th January 2025, 02:42 PM
manca manca is offline
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Default Undertray Fixings

Happy New Year to all.
I have to get some fixings for the undertray at the front of my car. Forum sponsor has none in stock. Does anyone have anyway of obtaining a part number. Hopefully I have attached the pic A8Parts sent me to this message. I am looking to attach the piece at the front of the car across the front and also to one of the lower wheel arch trims. Effectively attaching piece 16 on the picture to the piece that has 11-17pointed at it as well.as.the fixings for the front (the wavy edge).
TIA
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2010 D4 4.2tdi. phantom Black Pearl Effect. Night vision assistance with pedestrian detection. Parking aid plus. Audi pre-sense plus. Adaptive cruise control. Audi side assist. Bluetooth privacy handset. Mobile telephone preparation - High with Audi connect. CD/DVD changer. Bose surround-sound system. Through load facility. Homelink garage door opener. Advanced Key. Deluxe 4 zone climate control with rear comfort centre armrest. Adaptive Headlight with high beam assist. Electric sun blinds for rear window and rear door windows. Heated outer rear seats. Comfort seats with memory function. Extended leather pack 1. 21 inch Rotor alloys.
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  #2  
Old 19th January 2025, 08:11 PM
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steamship steamship is offline
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Probably best to explain this with pictures, rather than words.

For the first picture, highlighting the undertray (#10) highlights all the associated parts, 11-17, but ignoring #16 for now. You will see the various fasteners highlighted at the bottom of the image, and to the right, you'll see the corresponding part numbers, and the total of each one required. For part #11 (8K0805121), replace that with part number 8W0805121 as it's newer and cheaper. There are two part numbers for #14, but I can't find anything on which one is the correct one.



To attach part #16, I've attached a second image that #16 links to. In this one, there appears to be two parts, and I believe it is #18 in this case, but have no way of confirming as the part is quite different in appearance on them. Part numbers #19 and #20 are required.



I checked the prices of some of these on eBay, compared to the official price list, and the eBay ones are considerably more expensive, so I'd suggest contacting your local Audi dealer for prices, and also for confirmation on these being the correct parts needed.
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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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  #3  
Old 19th January 2025, 08:39 PM
manca manca is offline
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Thank you Sean for taking the time to reply in such detail. I6s much appreciated mate.
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2010 D4 4.2tdi. phantom Black Pearl Effect. Night vision assistance with pedestrian detection. Parking aid plus. Audi pre-sense plus. Adaptive cruise control. Audi side assist. Bluetooth privacy handset. Mobile telephone preparation - High with Audi connect. CD/DVD changer. Bose surround-sound system. Through load facility. Homelink garage door opener. Advanced Key. Deluxe 4 zone climate control with rear comfort centre armrest. Adaptive Headlight with high beam assist. Electric sun blinds for rear window and rear door windows. Heated outer rear seats. Comfort seats with memory function. Extended leather pack 1. 21 inch Rotor alloys.
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Old 21st January 2025, 10:30 AM
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steamship steamship is offline
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Haven't been able to reply sooner due to the site being down, but I later did a search on eBay for the undertray itself, and I came across the following listing:

https://www.ebay.co.uk/itm/186641283665

As you can see from the attached screenshot, they show different fasteners for it, all 19 of them! Hence the suggestion that you confirm with Audi if the part numbers I provided are correct. They should be, as it's the data they use.
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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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  #5  
Old 21st January 2025, 10:50 PM
manca manca is offline
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Yep will do. I'll try my luck with Exeter Audi.
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2010 D4 4.2tdi. phantom Black Pearl Effect. Night vision assistance with pedestrian detection. Parking aid plus. Audi pre-sense plus. Adaptive cruise control. Audi side assist. Bluetooth privacy handset. Mobile telephone preparation - High with Audi connect. CD/DVD changer. Bose surround-sound system. Through load facility. Homelink garage door opener. Advanced Key. Deluxe 4 zone climate control with rear comfort centre armrest. Adaptive Headlight with high beam assist. Electric sun blinds for rear window and rear door windows. Heated outer rear seats. Comfort seats with memory function. Extended leather pack 1. 21 inch Rotor alloys.
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