Question about 2004 Audi A4

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Temprature sensor how do you change the temprature sensor on the audi a4? Normally oct of part and replacement?

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One wire sensor located on the head

Posted on Jan 25, 2009

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2005 Audi A4 temperature reading is way low and it's causing the heat to come on when it's hot outside.


You need to change the outside air temperature sensor. A good diagnostic machine should be able to give the reading to make sure. The sensor is normally located in the drivers side door mirror or behind the front bumper.

Aug 05, 2013 | 2005 Audi A4

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If one camshaft position sensor in bad, should all four be replaced? I have an Audi 2003 A4 wagon . With faulty sensors, what problems would you normally experience with the car? Thanks, Thomas


With these it can and usually will, effect timing and acceleration. No you do not need to replace all 4. Replace the bad one, clear the code and go for a good long test drive.

Dec 09, 2010 | 2002 Audi A4

1 Answer

Repair a4 audi 2004, mass air flow sensor, catalitic converter, car stalls when accelerate.


hi this might not be the MAF but the MAP sensor as this is the thing that normally gives you this sort of fault, the MAF adjusts the air and fuel mix but the MAP adjusts the air and fuel mix and also the timing via the ECM , normally if it is the MAF it will just idle rough and still run as normal, but jerky and bogs down but does not stall, so if anything i would opt for the MAP sensor first before the MAF...hope this helps

Sep 20, 2010 | 2004 Audi A4

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My econ light remains on, on my 04 Audi A4. Various post report check the fuses initially. Which fuse do i need to check specifically?


This is normally one of 3 problems:

1 - Refriant too low
2 - Pressure sensor faulty
3 - Climate Control Unit faulty

In order of cost -

1 - Re gas approx 49 pounds
2 - New sensor - 50 Pounds
3 - New climate control unit circa 700 pound

I have just had the same issue and after a re gas and new sensor it all works okay.

Feb 18, 2010 | 2004 Audi A4

2 Answers

On my 2002 Audi A4 the Engine Oil Sensor faulty light has come on. Does this need to be replaced Immediately? The car is running normally. Can I change the sensor on my own?


Might want to keep an eye on this one.

AUDI has recalled A4 models d/t excessive "oil sludge buildup" (leading to possible engine failure, timing belt failure, and an overall decrease in daily performance). You will note that AUDI has switched from mineral based oil, to synthetic oil for routine oil changes. The aforementioned will allow the engine oil viscocity to remain constant between service point intervals.

Jan 04, 2010 | Audi A4 Cars & Trucks

1 Answer

2003 audi A4 2.0 fsi, has misfire on idle


this is going to sound crazy BUT i would (and have) take your car to a skoda dealer, labour cost 1/2 that of audi(i worked for audi for 11 years)and the parts are out of the same box.have you replaced H.T.leads as thet are carbon fibre and can cause the same symptoms.also ask to speak to audi area technical manager when next in your area.he is factory trained.

Dec 19, 2009 | 2004 Audi A4

2 Answers

Where is the 2004 audi a4 rpm sensor


For Diesel and also for Otto engines on 2004 Audi A4, this rpm sensor (impulse sender - crankshaft) is placed on the bottom left back side of the cylinder block. 966a88d.jpg Please Rate my Response! Thanks!

Jun 17, 2009 | 2004 Audi A4

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2003 audi a4 1.8t sedan temprature guage


You're talking about the coolant temperature right? If so, it's likely to be a coolant temp sensor. They're known to go bad on the A4, and they're only around $20-25 from www.ecstuning.com. If you replace it and the problem isn't fixed, no harm done - sooner or later that sensor WILL go bad. The result is that most likely your thermostat got stuck open and will need to be replaced.

Aug 30, 2008 | 2003 Audi A4 Cabriolet

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