Question about 2005 Audi A8

1 Answer

Low coolant light keeps coming on but coolant looks full

My check coolant warning light pops on but when i look at coolant it looks full in the jug but my temp hand is not reading hot it just stays on cold did it last week but i started driving and my temp hand went up and light went out ant solutions

Posted by on

  • 1 more comment 
  • damone powell
    damone powell Mar 24, 2014

    I looked & my jug is already at max level so what do you suggest next

  • wolf
    wolf Mar 24, 2014

    the low coolant sensor is part of the jug. connector is on the bottom.if you disconnect and the light go off.you need new jug.if the light stay on you have short in the system. lot of high mileage cars build calk deposit on the sensor and the flot stay lower than normal. some times just removing the reservoar and clean with solvent or vinegar will brake the deposit and work just fine for a wile.

  • damone powell
    damone powell Mar 24, 2014

    Thanks I will try that in the morning will give update

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Habit-Forming:

    Visited the website for 3 consecutive days.

  • Audi Expert
  • 179 Answers

Look close at your expansion tank. you will find marks
max____
~~~~~~~~~~~~~~~~
min_____
after you drive for 5-10 min.the coolant expend and rise the level in the tank
fill the coolant to max on cold engine
DON'T MIX COOLANT
USE ONLY FACTORY RECOMMEND
low coolant light keeps coming on but coolant look - pentofrost-nf.jpg
PENTOFROST SF (without silicates)
(Formerly LIFETIME ANTIFREEZE G12)
Size: 1.5 liters (1.59 quarts), Part# 8114107
Color: Pink & Clear
CLICK HERE FOR PENTOFROST SF SPEC SHEET

  • Audi (after 06/1996 up to 2005); Spec. TL 744 F

Posted on Mar 24, 2014

Testimonial: "I looked at my jug and it's full at max level already what do you suggest I do next"

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 5 Answers

SOURCE: Coolant warning lights keeps coming on

Audi TT's only take G12 coolant (vw/audi propriatary formula) you can add some distilled water to the water level to prevent the light from coming on, but as you explained you keep adding fluid (of some kind) and the warning like returns. that's a little evident that you have a leak somewhere.

put some paper towels or something under your car when you park it for the evening. when you come out the next day, pull the car away from the spot and look at the paper towels. if they have orange drops, that's your G12 coolant leaking. like McMuff460 said, check all the clamps/hoses for signs of the leak. if you don't find anything i reccomend taking it to a shop for them to check out. Your water pump might be on it's way out.

Don't ever put any other fluid other than G12 coolant and distilled water into your car's coolant system. It will cause some major issues with seals, leaks, and cooling performance.

Posted on Nov 06, 2008

  • 47 Answers

SOURCE: Coolant light on an AUDI TT 2000

It sounds like it is low on coolant. Coolant expands when it warms up so if it is just low enough to trip the switch when it is cold it will shut the light off when it warms up. You should be ok to just top it off but be sure that what you put in is compatible with what is in it. There must also be a leak somewhere in the system for you to have lost some to begin with. Depending on how many miles you have on the car it wouldn't hurt to have the cooling system flushed if it's never been done before. If you do get it flushed take it to the dealer to have it done. Explain to them the low coolant and have them check the system for leaks at the same time. Hope this helps

Posted on Dec 23, 2008

  • 85 Answers

SOURCE: coolant in coolant reservoir did not fill low level in radiator

you must drain air out of system
so when engine is warmed up, just unscrew slightly the thermo time switch which is the highest sensor and unit in cooling system besides the reservoir, until alittle air releases then when antifreeze starts coming out then retighten to specs. BE VERY CAREFUL !!!! LOOSEN VERY SLOWLY AND NOT COMPLETELY REMOVE FOR THIS CAN CAUSE BURNS. MIGHT WANT TO USE A RAG AROUND SENSOR. If this doesnt solve it then make sure you have the correct rad. cap. Also that the filling hose is not clogged as well as the little port on radiator.

Posted on Feb 19, 2009

  • 297 Answers

SOURCE: Audi A4 2.5 V6 TDI - Creamy grey coolant in expansion tank

Sounds like blown head gasket (or worse) still to me.
Remove oil filler cap and look for grey oil.
Never use water these days but special coolant. Water makes vapour spots and cause block cracks, worse then blown gaskets!!!
vapour does not cool very well.
Look like you have cracks already.
Take a compression test if possible. But might not show op at that temperature.
The gauge indication troubles me.

Posted on Apr 14, 2009

  • 104 Answers

SOURCE: OIL SENSOR LIGHT ON 2001 Audi 2.8liter

It could simply be maybe the person changing your oil never reset the light? or you have a oil pressure sensor leaking or not working.
most of the time its someone never reset the oil change light. even before it goes on it goes by mileage, so maybe it didnt go off yet cause you cnahged it a tad early.so noone even tried to reset it.

I guess you could have an oil pressure problem, but thats going the extreme route.. but if nothing else shows that could be a problem.

Posted on Apr 29, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

2006 jeep grand Cherokee limited if the radiator overflow jug is empty will it cause the transmission temp light to come on


I would say it is possible an overheated engine which is not coolling the transmission can trigger a lot of lights. Many transmissons are heated and coolled by a line which goes to the radiator of the engine cooling system.

Apr 28, 2016 | Jeep Cars & Trucks

1 Answer

My low coolant light comes on whenever I start my 1991 735 iL. I had the coolant system checked out. It's fine. Which fuse may I take off to stop the warning area from going: "Ding - Low Coola


Make sure that there is enough fluid in the overflow jug as well as the radiator , I think the jug has a sensor it could be bad, or there may be air in your cooling system tat was not bled out of the bleeder valve if the system was serviced recently.

Apr 18, 2013 | Cars & Trucks

2 Answers

How are you supposed to add antifreeze to a 1997 Pontiac Grand Prix


the plastic jug is an overflow container when the vehicle gets warm excess coolant from the radiator flows to it there is a sensor somewhere on the jug or in it for coolant level if it doesnt hold coolant it is most likely cracked as it is only plastic and should be replaced

Aug 04, 2012 | 1997 Pontiac Grand Prix

1 Answer

What is the warning light on 2005 vw gti


Hello! A thermometer light with two wavy lines underneath the thermometer indicates a problem with the VW's cooling system...When the engine is cold; Check the coolant level in the radiator...If it is full and since the light goes out when the engine reaches normal operating temperature the Low Coolant Level sensor is defective...But I suspect the level is low..
Guru...............saailer

Jan 05, 2012 | 2005 Volkswagen GTI

1 Answer

2004 monte carlo ss running hot on start up. Replaced thermostat and radiator cap.


CHECK COOLANT OVERFLOW JUG IF EMPTY ADD MORE COOLANT UNTIL COOLANT LEVEL STAY AT FULL COLD MARK.LONG AS COOLANT LEVEL OVERFLOW EMPTY KEEP COOLANT AT COLD FULL MARK.IF COOLANT OVERFLOW JUG YOUR RADIATOR COOLANT LEVEL LOW.

Sep 16, 2011 | 2003 Chevrolet Monte Carlo

3 Answers

I replaced my radiator on my 2004 with a 2.2 and it seems like the thermostat is not opening. It can not get the air out. It seem to just to over heat and push the coolant out. Randy


REPLACE THERMOSTAT IF TOP COOLANT COOLANT HOSE GOING TO RADIATOR IS HOT TO TOUCH THERMOSTAT OPEN. TO BLEED COOLANT SYSTEM FIRST YOU NEED TO ADD COOLANT TO THE COOLANT OVER FLOW JUG UNTIL COOLANT LEVEL STOP DROPPING AND STAY AT FULL COLD MARK.WAIT 3 MINUTES IF COOLANT DROPS ADD MORE COOLANT UNTIL COOLANT STAY AT FULL COLD MARK.WITH RADIATOR OVER CAP OFF CRANK ENGINE FOR MINUTE WATCH COOLANT LEVEL AT OVERFLOW JUG.IF COOLANT DROPS ADD MORE COOLANT IN THE OVERFLOW JUG.WHEN COOLANT LEVEL STOP DROPPING IN OVERFLOW JUG.SCREW BACK ON THE RADIATOR CAP TO OVERFLOW JUG.WHILE ENGINE IDLING WATCH TEMPERATURE GAUGE WHEN TEMPERATURE START CLIMBING TURN OFF ENGINE WAIT A WHILE KEEP FROM GETTING SCALDED.WHEN COOLANT COOL DOWN SOME. PLACE A LARGE RAG OVER THE COOLANT OVERFLOW JUG OPEN CAP LITTLE AT A TIME UNTIL PRESSURE RELEASED, THEN REMOVE CAP ADD MORE COOLANT IN THE OVERFLOW JUG TO THE FULL COLD MARK.THEN REPEAT THE PROCESS SCREW BACK ON THE COOLANT OVERFLOW RADIATOR PRESSURE CAP.THEN START ENGINE WATCH TEMPERATURE GAUGE WATCH COOLANT TEMPERATURE GAUGE WHEN COOLANT TEMPERATURE START RISING TURN OFF ENGINE AGAIN WAIT UNTIL ENGINE COOL DOWN ENOUGH TO KEEP FROM GETTING SCALDED TAKE PLACE LARGE RAG OVER RADIATOR CAP WHICH IS THE COOLANT OVERFLOW JUG CAP OPEN CAP LITTLE AT A TIME UNTIL PRESSURE RELEASED ADD COOLANT UNTIL AT FULL COLD MARK. WHEN YOUR COOLANT LEVEL STOP DROPPING.AND TOP RADIATOR HOSE VERY HOT THERMOSTAT OPEN AND AIR IS OUT THE COOLANT SYSTEM. MAKE SURE YOUR COOLANT OVERFLOW JUG HAS COOLANT IN IT,WHEN ENGINE COOL DOWN CHECK COOLANT OVERFLOW JUG KEEP COOLANT LEVEL AT FULL COLD MARK.BECAUSE IF OVERFLOW JUG IS EMPTY THATS A SIGN RADIATOR COOLANT LEVEL LOW.WHEN OVERFLOW JUG EMPTY IT WILL ALLOW AIR GET IN THE COOLANT SYSTEM AND CAUSE CAR TO OVERHEAT.WHEN REPLACING THERMOSTAT ALSO REPLACE THE RADIATOR CAP ON THE COOLANT OVERFLOW JUG.

Aug 09, 2011 | 2004 Oldsmobile Alero

1 Answer

Overheating


OVERHEATING CAN BE CAUSE BY MANY THINGS LIKE FAULTY THERMOSTAT AND FAULTY RADIATOR PRESSURE CAP,TOO MUCH WATER IN COOLANT SYSTEM NEED 50 / 50 WATER AND ANTIFREEZE.LOOK FOR WATER PUMP WEEP HOLE LEAK, IF COOLANT LEAKING OUT WEEP HOLE WATER PUMP BAD NEED REPLACING.CHECK FOR LOW COOLANT LEVEL, YOUR RADIATOR OVERFLOW JUG SHOULD HAVE COOLANT AT THE FULL COLD MARK IF NOT KEEP ADDING COOLANT INTO COOLANT OVERFLOW JUG UNTIL COOLANT STOP DROPPING AND FULL COLD MARK, IF OVERFLOW COOLANT JUG WAS EMPTY RADIATOR IS LOW ON COOLANT.WHICH CAUSE AIR IN COOLANT SYSTEM KEEPING THE ENGINE COOLANT TEMPERATURE SENSOR FROM BEING SUBMERGE IN HOT COOLANT WHICH TURN ON THE COOLANT FANS.WHEN ENGINE COOLANT TEMPERATURE GET CERTAIN SET TEMPERATURE LIKE 190 DEGREES THE PCM AND COOLANT SENSOR WILL TURN ON COOLANT FANS, IF VECHICLE OVERHEATING COOLANT FANS NOT WORKING EITHER YOU HAVE FAULTY ENGINE COOLANT TEMPERATURE SENSOR CHECK COOLANT FANS FUSE AND RELAYS. YOU CAN CODE SCAN CAR TO SEE IF YOU HAVE FAULTY PCM, FAULTY ENGINE COOLANT TEMPERATURE SENSOR OR FAULTY COOLANT FAN RELAY.IF COOLANT FAN AND ENGINE COOLANT TEMPERATURE SENSOR OKAY,YOU HAVE CORRECT COOLANT LEVEL IN COOLANT SYSTEM, THERMOSTAT AND RADIATOR PRESSURE CAP BEEN REPLACED, YOU COULD HAVE BLOWN HEAD GASKET CHECK ENGINE OIL LOOKS LIKE MILK SHAKE HEAD GASKET BLOWED ALSO WHEN HEAD GASKET BLOWED YOU CAN DRIVE CAR SHORT DISTANCE START OVERHEATING AND YOU LOOSE ENGINE POWER SUSPECT BLOWED HEAD GASKET.

Aug 04, 2011 | 1999 Oldsmobile Alero

1 Answer

Need to know if i need to bleed the cooling system, after installing the radiator?


ADD COOLANT IN THE COOLANT OVERFLOW JUG UNTIL COOLANT LEVEL STOP DROPPING AND COOLANT LEVEL STAY AT THE FULL COLD MARK.PLACE COOLANT OVERFLOW JUG CAP BACK ON JUG.CRANK VECHICLE UNTIL ENGINE START WARMING UP. STOP ENGINE WAIT FOR A WHILE UNTIL COOLANT COOL DOWN TO KEEP FROM GETTING SCALDED. USE A LARGE RAG OVER THE OVERFLOW JUG CAP OPEN OVERFLOW JUG CAP A LITTLE AT A TIME REMOVE OVERJUG CAP CHECK COOLANT LEVEL ADD MORE. COOLANT IN THE OVERFLOW JUG.THEN START VECHICLE AGAIN.LET ENGINE IDLE UNTIL TOP RADIATOR GET HOT.THEN THERMOSTAT WILL BE OPEN.WHILE ENGINE IDLING WATCH THE TEMPERATURE GAUGE IN VECHICLE IF TEMPERATURE GAUGE START CLIMBING IN THE HOT ZONE.TURN OFF VECHICLE LET IT SET A WHILE THEN USE LARGE RAG REMOVE OVERFLOW JUG CAP.ADD MORE COOLANT, PLACE CAP BACK ON START VECHICLE AGAIN KEEP DOING THIS PROCEDURE UNTIL TEMPERATURE STOP CLIMBING HOT ZONE.AND WHEN COOLANT LEVEL STOP DROPPING IN THE COOLANT OVERFLOW JUG.AIR IS OUT THE SYSTEM, BUT KEEP COOLANT LEVEL IN THE COOLANT OVERFLOW JUG AT THE FULL COLD MARK.DONT OVERFILL.DONT LET COOLANT OVERFLOW JUG RUN DRY IF SO AIR WILL ENTER COOLANT SYSTEM BECAUSE COOLANT LEVEL WILL BE LOW ENGINE WILL START OVERHEATING.

Jul 24, 2011 | 2006 Dodge Grand Caravan

1 Answer

CAR RUNNING HOT AFTER I CHANGED A BAD RADIATIOR OK RADIATIOR HAD A WHOLE IN IT WE CHANCED IT BUT NOW ITS RUNNING HOT HOW DO I PROPERLY REFILL THE RADIATIOR


CHECK COOLANT LEVEL STILL LOW.ADD MORE COOLANT.UNTIL RADIATOR OVERFLOW FULL AT COLD MARK.THEN CRANK ENGINE UP LET IDLE FEW MINUTES LOOK DOWN COOLANT OVER FLOW JUG ADD MORE COOLANT IF LEVEL DROPPED.WHILE ENGINE RUNNING KEEP EYE ON TEMPERATURE GAUGE.WHEN THERMOSTAT HOSE GET HOT.TURN OFF ENGINE WAIT A LITTLE WHILE TO KEEP FROM GETTING SCALD TAKE LARGE RAG PLACE OVER OVERFLOW JUG RADIATOR CAP.OPEN CAP A LITTLE A TIME.IF COOLANT TRIES BOIL OUT.LET VECHICLE SET A WHILE LONGER.ADD MORE COOLANT.WHEN COOLANT LEVEL CORRECT AND ALL AIR OUT THE COOLANT SYSTEM.IT WILL STOP OVERHEATING.LONG AS ENGINE RUNNING HOT TURN OFF THE ENGINE POUR IN MORE COOLANT UNTIL COOLANT LEVEL STOP DROPPING IN RADIATOR.KEEP COOLANT LEVEL IN OVERFLOW AT COLD MARK.DONT OVER FILL OVERFLOW JUG.

Jan 23, 2011 | 1996 Lincoln Continental

1 Answer

I have a 2003 Grand Am and a warning light has come on and it's telling me that something is low. Could someone please let me know what is low, so that I can refill whatever needs to be done. Thanks


if it is a funny looking square red image that looks like a radiator, it is your low coolant light. gm's are known for the level sensor failure. so check the fluid level and tap on the side of the coolant jug to see if the light goes out

Nov 24, 2009 | 2003 Pontiac Grand Am

Not finding what you are looking for?
Cars & Trucks Logo

202 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audi Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

yadayada
yadayada

Level 3 Expert

76649 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14380 Answers

Are you an Audi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...