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| D2 - Engine Bay Everything under the bonnet |
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#1
30th September 2023, 02:09 PM
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It's a bit of weird one, considering there is a voltage reading between both contacts at the plug means they are both connected to something so I would be more inclined to think one of them could be shorting to something else rather than break in wire. Could be loose connection, sometimes connected like when you measured but coming loose at times. I guess I would first try to rule out problem in dash by shorting the wires by the dash. I had brake pad warning light coming on my ROP S8, It was a break in cable somewhere but I just connected wires behind dash to get rid of warning.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure 
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#2
2nd October 2023, 07:18 AM
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UPDATE: Removed the instrument binnacle and checked the connectors - all seems fine. Nothing obvious. Put it all back together again and now I have the ABS warning coming up as well as the coolant level!!
Couldn't make it up..... From the wiring diagram this seems to be on the same connector block - T32/b so I possibly need to look at that again or perhaps it just didn't go back in properly?
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2002 S8 Aqua Pearl, entirely original apart from FE 20" OEM wheels and Milltek exhaust. 
Last edited by Mossyboy1978; 2nd October 2023 at 07:24 AM.
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#3
2nd October 2023, 08:48 AM
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Quote:
Grasping at straws here, but has there ever been any work done in and around that area that you know of? Thinking along the lines of someone putting a screw in the wrong place... straight through the loom. Not that this helps, but here's one part of the wiring loom for the dash/engine bay, that includes the instrument cluster (43), Coolant level (40) and ABS (34) connectors:
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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 HeadlightsMy DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds Last edited by steamship; 2nd October 2023 at 09:03 AM. Reason: Added Image
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#4
2nd October 2023, 10:30 AM
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Not in my ownership - and I've had it about 7 years.
The mystery continues....as does the beeping....
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2002 S8 Aqua Pearl, entirely original apart from FE 20" OEM wheels and Milltek exhaust.
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#6
2nd October 2023, 03:22 PM
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Thanks Ronin - that sorted that issue!
Coolant level warning remains.....
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2002 S8 Aqua Pearl, entirely original apart from FE 20" OEM wheels and Milltek exhaust.
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#7
3rd October 2023, 01:50 PM
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Is it possible that this is something to do with the coolant temp sensor at the back of the engine?
Rather than the one at the bottom of the expansion tank?
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2002 S8 Aqua Pearl, entirely original apart from FE 20" OEM wheels and Milltek exhaust.
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