Question about 2000 Audi A4

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Audi A4 erratic humming

My 2000 audi a4 is making a erratic humming noise when in park and drive. It started making this noise after I had driven my car in low gear on a windy mountain road. When the car is in park i press the gas and as the car is winding up it makes the erratic noise, when I let go of the gas and it comes back down to idle it sound like it wants to back fire. I have checked all the coil packs and they are working fine. Is this a transmission problem?

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6 Suggested Answers

j_del
  • 1586 Answers

SOURCE: Oil for 2007 AUDI A4 2.0t Quatro

The best balance of price, quality, availability that I have found is Mobil1 synthetic - it's on Audi's approved oils list. With the 2.0T engine, you absolutely want to use synthetic (the Audi turbo fours are known for oil sludge issues), and you want to do a SeaFoam treatment every 15k miles or so - that combination will keep your engine in great running shape.

Posted on Aug 14, 2008

  • 345 Answers

SOURCE: audi a4 front lights

if you mean the complete light you will have to remove front bumper then you will get to the bottom bolts that hold the headlamp in.....

Posted on Oct 25, 2008

  • 184 Answers

SOURCE: 2005 Audi 1.8 a4 check engine light on and car now spudders??

FYI also when you get those codes you can look them up and get their description at http://www.check-engine-light.com

Posted on Jan 03, 2009

j_del
  • 1586 Answers

SOURCE: Core Support and Radiator Replacement , Audi A4 Quatro 1.8

Very easy - the car is designed to have these parts as being removable for the timing belt service. Opening the car is called the "service position" and involves taking these parts nearly off the car. Use the link below (it's a link to a DIY procedure for doing the timing belt on the car) - it'll show you what to do in order to remove the front clip of the car and remove the core support and radiator.

http://www.audiworld.com/tech/eng35.shtml




Posted on Feb 10, 2009

ButtFuzz
  • 463 Answers

SOURCE: 1996 Audi A4 Automatic transmission wont shift when cold

Silly question: Have you checked the transmission fluid level, and is it to manufacturer's spec?

Posted on Mar 13, 2009

csmock132
  • 4669 Answers

SOURCE: 2000 audi a4- humming noise coming from rear of car

It could be a unevenly worn tire or a bad wheel bearing.

Posted on Mar 27, 2009

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Audi a4 camb timming


Hi,

Audis are not very common in mycountry but from what I can gather:

Themark for the crankshaft gear is on the cover you have to remove inorder to get at the timing belt. The sprocket you may be having troublewith is the intermediate shaft (in front of the water pump) and I don'tbelieve that one matters at all since it doesn't drive any of the cams.The intake cams are driven by a chain off of the exhaust cam shaft soonly the exhaust cam is driven directly by the timing belt.

Additionally, you may benefit from the Audi A4 Service Manual and/or Audi A4 Cabriolet Workshop Manual.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

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1 Answer

Suspension


What kind of noise? Is it a humming noise that gets louder as the road speed increases? If so, it's a wheel bearing - A4s eat wheel bearings like popcorn.

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