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| D2 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc |
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#1
29th October 2010, 05:40 PM
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Won't start - 2nd time this week
Monday morning my 2002 S8 was flat as a pancake and had to be jump started off my wife's mini (oh, the shame!
 ). I assumed that, as I'd cleaned it inside and out on the Sunday, that I'd switched something on accidentally and the battery had drained whilst it was left standing on the drive.It was fine all week. Five 35 mile each way commutes in the dark and the odd trip to the shop at lunchtime. But tonight, came home, went out an hour later to pick up my daughter, waited outside her place of work for 10 minutes with side lights and the TV on and....flat as a pancake again. Doesn't really sound like a battery or alternator fault - but I might be wrong... ...any ideas on where to start guys? 
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#2
29th October 2010, 06:30 PM
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Volt meter across the battery terminals when the car is running should give about 14V. If it doesn't then Alternator problems???? or bad earth . My thread here may help.
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light. 
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#3
29th October 2010, 08:20 PM
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As Mike says above..
But given the age of the car, it could just be that the battery is going and with the extra load on the dark mornings/nights it's just not getting itself sorted anymore.
__________________
2010 Jag XF 3.0D Portfolio S I know.. I know.. 
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#4
30th October 2010, 09:31 AM
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Well I only drove about half a mile after the jump start last night, left the car outside overnight and it started this morning! A bit sluggish, but there you go.
The voltmeter shows 13.8 volts across the battery with the engine running...so where are these pesky earths?
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#5
30th October 2010, 09:54 AM
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Drivers side wheel arch, on the chassis rail you will see a wee black box that has the cable from the battery going in and the lead to the starter motor and alternator going out. Next to it is the earth lead from the engine to the chassis.
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light.
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#7
30th October 2010, 11:27 AM
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It must be hard to find as - following earlier thread - I asked my garage to check it before last winter. They couldn't find it and so didn't do it, but did clear scuttle drains etc.
__________________
D2 FL Q 2.8 V6 2002 Taxi(?) spec - no heated seats headlight washers etc. D2 PF Q 2.5 tdi LHD rear blinds and heated rear seats, Bose, 5 speed Tip, Servotronic, Pioneer AVIC 333,333 km Murdered on a P&O ferry 2012. Cat3 write off
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#8
30th October 2010, 12:00 PM
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Found a black box above the battery in the boot, but everything is like new in there.. Put a 10mm socket on and tightened each connection up - but I suspect that's not what I'm looking for is it?
BTW - the battery has 12.25 volts across it - is that OK? Still, off-side front wheel is now very clean! Last edited by The_Laird; 30th October 2010 at 12:03 PM.
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#9
30th October 2010, 12:26 PM
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 This photo shows the brown earth wire left of the socket ratchet. The purple connector is next to the battery connection box. The schematic
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light.
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Linear Mode
