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Knocking noise from my audi a3 engine

My car, Audi A3 (53 plate), has suddenly developed a knocking noise from the engine area. It is much louder when idling and on occasions is accompanied by a spongy, vibrating clutch. In addition, my car's fan stayed on for 2 hours after only a 10 minute drive. Any ideas?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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j_del
  • 1586 Answers

SOURCE: Audi A3 2002 model auto - temperature gauge not working

Change the coolant temperature sensor. They're known problem areas on other Audi models, including my A4. The part runs about $20 from www.ecstuning.com and it's the problem probably 75% of the time. If that's not a fix, it could be a thermostat that is stuck open and causing the gauge to never read warm.

Posted on Aug 11, 2008

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j_del
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SOURCE: audi a3 1.8t dump valve fitting

A dump valve replaces the recirc valve. Did you see the reply to your prior post on this topic that I put up the other day? You can do it but it'll cost you your catalytic converter and O2 sensors - that has been proven out many times in the past. If you don't care about that and don't mind spending $1200-1500 every year or 18 months to replace those parts, then go to www.audiworld.com or www.audidiy.com and look in the tech areas - there are step by step procedures there that walk you through recirc valve replacment. They'll show you how to fit an aftermarket recirc valve, but you can follow that procedure to do a BOV as well.

Seriously though, as I said before, some cars are fine with BOVs but Audis are not. You're going to cost yourself a LOT of money just for the sneeze sound and slightly slower turbo spool. Your car and money though so it's your decision.

Posted on Oct 19, 2008

jonbrown725
  • 73 Answers

SOURCE: knocking noise in 3.8 lit 95 ford taurus

You can not put a liquid where metal is supposed to be. Just a general rule of thumb. The high RPM's had been too much for the engine, and A rod bearing, or rod knocking is about the same thing. Dont try the heavier oil thing, I hate when ppl suggest such stuff. Just replace the bearing, or in most cases and cost efficent, the engine.

Posted on Jan 15, 2009

  • 25 Answers

SOURCE: Audi A3 quattro sport cam belt

There is no change interval as it is chain driven

Posted on Feb 18, 2009

chet_02
  • 1 Answer

SOURCE: audi a3 electric power steering not working in one direction

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Posted on Mar 01, 2009

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1 Answer

Knocking noise


Likely a bad spring on the clutch pedal. You could try lubricating it and the contact points, if it doesn't go away you may need to replace the spring.

Nov 05, 2013 | 2009 Audi A3

1 Answer

My audi a3 1.9 tdi knocks in 3rd 4th and 5th when i put the power down, it also knocks when im turning right through those gears. The knocking noise comes from the drivers side only? Any help pleasee??


The right engine mount has failed and it will have to be replaced. This is a job for a shop, the engine must be lifted from the chassis to access the mount.
It's a 2 day job so make arrangements for a replacement car.

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Hi i need to know what fuse number is for the front wiper for an audi a3 2005 2.0tdi?


No.# 31 fuse (25A - white colour) placed in the engine bay fuse box / relay plate, is for the front windscreen wipers for an Audi A3 2005 2.0 TDI. See pictures below:

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Apr 01, 2011 | 2008 Audi A3

2 Answers

Where is the location for the fuel pump relay in a 2007 a3 2L tdi 170bhp


The fuel lift pump relay is placed in the fuse box / relay plate fascia 2 for 2007 Audi A3 2.0 TDI. The fuse box / relay plate fascia 2 is placed above pedals behind a plastic cover. See pictures below:

The fuse box / relay plate fascia 2
tdisline_152.jpg

The fuel lift pump relay
tdisline_153.jpg
The fuel lift pump relay is placed in "2b" position in the above picture.


Please do rate my response. Thanks!

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Whining noise while accelerating in 1st gear


Check the idler and tensioner pullys for your serpentine belt. I suspect the whining noise heard earlier was due to the fact one was getting a bit stiff or rough turning. When you gave it that extra fuel, the sudden load may have finished it off. Sometimes they lock up, and sometimes they fall apart. Check those items first.

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There is a whizzing noise when changing gear Audi a3 55 reg!


if its only when you put your foot on the clutch it could be a release bearing fault,does it do it when you are not moving and put your foot on the clutch(engine running of course)

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