Question about 2004 Audi A4

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Electric fan I've got an audi a4 se auto which has developed a problem with fan coming on full as soon as you turn the ignition. Been in my local garage 3 times in last week to resolve & had both sensors replaced, wiring & relay checked but still having the problem.

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Which fan are you referring to, the electric fans for the cooling system, or the air blower fan inside the car as part of the climate control?

Posted on Nov 14, 2008

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Audi a4 2.8l no heat


take the top off the filler cap run engine to boil. keep it full off water to the top. you will see air bubbles coming out as the engine gets hotter. squeeze the pipes on the rads to help the air come out. when fan kicks in turn engine off and leave to cool down.while you are doing this make sure the fan for heater is off but is on full heat. can have fan on number one on speed that is fine.

Mar 01, 2013 | 2000 Audi A4

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Just bought a 1998 audi a4 as soon as i turn the ignition on the dash illulnination lights come on!! i can dim them but thats not the point i do not want them to come on till i turn on the lights no point...


That's how the car was built - until the midyear facelift in 99 (the 99.5 model), the dash lights were always illuminated. Even with VagCom I haven't seen a way to disable this - the car is hardwired to light up the dash with the key on.

Mar 31, 2011 | 1998 Audi A4

2 Answers

Audi ABS breaking system error


if the ABS fault light comes on as you turn on the ignition and control unit can't be accessed with a fault reader then the control unit itself is faulty and must be repaired or replaced. if can be accessed, should store a fault in the memory, most probably in a wire to wheel speed sender. if light comes on only after vehicle is in motion than fault will be a dirty or incorrectly adjusted speed sender.

May 15, 2010 | 2001 Audi A4

1 Answer

AUDI A4 1996 Diesel glowplug not supplied with electricity.


i do not know but give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car wish you the best of luck Michigan Man.

Mar 02, 2010 | 1999 Audi A4

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What does a light on the dash mean that flashes yellow,has a pic of a car and a key with a line tru it.audi a4 96plate


Katielouiser I have the same icon come on each time i start my 1996 Audi A4 and if I don't wait till it goes off before starting the car it will immobilise the engine soon after starting. But if I wait till it goes off before proceeding with starting, the engine will continue to run till I stop and turn the ignition off- only to repeat this all over again when I have to drive somewhere again. It can be a pain when ones in a hurry, and embrassing to say the least when you have passengers.

Feb 02, 2010 | 1996 Audi A4

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W reg audi wont turn over after fitting new starter motor


IF YOUR ENGINE WON T TURN OVER AFTER YOU FITTED A NEW STARTER MOTOR..I WOULD START WITH THE BATTERY MYBE DEFECTIVE NOT HOLDING FULL CHARGE....THEN CHECK WIRING.....GET BACK TO ME IF YOU NEED MORE HELP !!

Mar 15, 2009 | 1998 Audi A4

1 Answer

2003 Audi A4 Cabriolet ...cooling fans come on at start up


Yes this car should have a temperature sending unit that tells the fans to kick on. If it has two fans one of them is for you Air-condiontion, and it will turn on whenever the ac is being ran. One other possibility is if you bought the audi used the owner before you may have hard wired the fan to run whenever the car ignition is turned on. The only reason someone would do that is if they were to lazy to fix it properly.

Jan 30, 2009 | 2003 Audi A4 Cabriolet

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Audi a4 fan comes on as soon as turn ignition. Had bother sensors replaced & relay & wiring checked - ok


Is this a problem ? Do you mean the cooling fan in the engine ? As long as it does not stop running altogether it should not be a problem.if it's not the cooling fan, then I don't have an answer.

Nov 08, 2008 | Audi A4 Cars & Trucks

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2004 Audi A4 1.8 T


On my '99, this is the procedure:

Put the key in the ignition. Press and hold the left reset "stick" on the cluster, then turn the key to full electrical power. Pull out on the right "stick" and the display will turn to all dashes like this: ---- Turn the key off, then release the left stick, and restart the car and it should be reset.

Aug 14, 2008 | 2004 Audi A4

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