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| D2 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc |
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Thread Tools | Display Modes |
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#1
21st July 2012, 03:10 PM
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Fuel gauge suddenly showing incorrect....??
On Friday i was getting low on fuel and DIS was showing i had 20km left in the tank when i got home. Popped to the local store an hour later and then it claimed 50km left in the tank. Figured this was strange but think more about it.
Today me, my better half(as she claimed) and the kid went out for shopping, i was gonna get fuel close to the mall we were heading to, but on the danm highway with 40 km left in the tank it died... After my better half had gotten her steem out i walked the 300 m to the nearest gas station. Put 6 liters in the car , drove over and put another 40 liters in the car. DIS now shows 40km left in the tank and the fuel gauge is only on 1/8.. No leaks anywhere. Usually i can see 0km left in the tank and only squeze in 85 liters. Any ideas guys? 
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2003 Daytona Grey RS6 2000 Silver S8 2005 A6 1.8TQ Premium 1993 Audi S4 2.2 TQ MTM 330 (my first love!) 
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#2
24th July 2012, 08:10 PM
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Have you got VCDS (VAGCOM)? Sounds like the sender unit may be on the way out. A scan may show you something.
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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
24th July 2012, 09:35 PM
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Thank you Conan
Just been outside now with vcds and did a output test. Thatt showed all ok. So i put ib some more fuel and now it works just fine. Just to be on the safe side i adjusted it from 128 to 122 under adaption just to make sure it shows a bit less than whats actually in the tank Willy drive to empty once more just to chek DIS info and fuel gauge
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2003 Daytona Grey RS6 2000 Silver S8 2005 A6 1.8TQ Premium 1993 Audi S4 2.2 TQ MTM 330 (my first love!)
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#4
19th August 2012, 05:35 PM
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I have had problems with my fuel gauge as well, didn't move under 1/4 tank. Haven't bothered doing anything with this for over 1year now. But finally i i decided to fix this and ordered two new senders, and it seemed to work. It went down past 1/4 tank. BUT the other it ran out, and it's showing JUST on the top side of the red/reserve field (this is the lowest i have run the car since i changed senders). Might this be solved with an adjustment in VCDS?
Sorry for steeling your thread btw SilverS8 
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#5
19th August 2012, 08:30 PM
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2003 Daytona Grey RS6 2000 Silver S8 2005 A6 1.8TQ Premium 1993 Audi S4 2.2 TQ MTM 330 (my first love!)
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#7
4th September 2012, 04:32 PM
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Didn't help with adjusting the gauges for me.
But i have had the whole right side tank module outside, and i think i can remember something with a secondary pickup on that one that can be a real bitch to get right once it's been out. If that's the case this time. How much will the tank aprox bee before it runs dry without the secondary pickup?
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#8
4th September 2012, 04:44 PM
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ETKA says 1/4-1/3
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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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Hope it works 
Linear Mode
