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View Full Version : Question 3.0 chain ?



niedzial1983
04-07-2016, 06:53 PM
Does this sounds like chain needs doing ?

audi 3.0 tdi chain rattle ? - YouTube (https://youtu.be/37RMdVQwccI)

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

Guest 2
04-07-2016, 07:05 PM
in my opinion, no.

you'll only hear it on stone cold start and it literally will be a distinct rattle.

been there done that got the t-shirt, it was the reason i sold my 2008.

niedzial1983
04-07-2016, 07:14 PM
Ill do another video tomorrow morning on cold engine

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

AT.
04-07-2016, 07:58 PM
audi 3.0 tdi chain rattle ? - YouTube (https://youtu.be/37RMdVQwccI)

I had to replace my timing chain on my former 4F/3.0, but it sounded a lot worse when I started the car. It sounded something like this: Audi a6 3.2 v6 quattro 2005 startup noise before upper chain tensioner replacement - YouTube (https://www.youtube.com/watch?v=3kChoxoRtpM) for a short period of time after the ignition.

niedzial1983
04-07-2016, 08:27 PM
Here is mine again from the start

Audi 3.0 chain noise - YouTube (https://youtu.be/9RQ1hID6a84)

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

rowdy-999
04-07-2016, 08:30 PM
Does this sounds like chain needs doing ?

audi 3.0 tdi chain rattle ? - YouTube (https://youtu.be/37RMdVQwccI)

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl


No. Is it noisier than normal?

niedzial1983
04-07-2016, 08:33 PM
I didn't notice any change since i bought it a year ago.

But today i started the car when i had the bonnet up and it seemed loud

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

Guest 2
04-07-2016, 08:39 PM
Of course it's going to sound louder with the bonnet open ...

AT.
04-07-2016, 08:49 PM
But today i started the car when i had the bonnet up and it seemed loud

Of course if you open it, then you will miss the sound-proofing. For me, the engine sounds quite normal, however it seems to me, that there could be a little timing chain problem at the very beginning. In my car this sound level was treated as "normal", and I had to replace the timing chain later. However if that sound, which you can hear right after the ignition will be worse, then I suggest to check the engine. To change a timing chain is a costly thing, however it's far cheaper than to replace the engine.

niedzial1983
04-07-2016, 10:10 PM
Can any of you post a video of the sound where they are not failing ?

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

niedzial1983
05-07-2016, 09:06 AM
Here is stone cold start this morning

Audi 3.0 cold start chain? - YouTube (https://youtu.be/nIBAicHmI9g)

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

rowdy-999
05-07-2016, 10:03 AM
Here is stone cold start this morning

Audi 3.0 cold start chain? - YouTube (https://youtu.be/nIBAicHmI9g)

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl


Completely normal. No hint of chain rattle.
Stop stressing. Regular quality oil changes and the engine will outlast the chassis.

Guest 2
05-07-2016, 12:45 PM
sounds normal, as above stop stressing out. When it happens it will be a distinct noise.


Completely normal. No hint of chain rattle.
Stop stressing. Regular quality oil changes and the engine will outlast the chassis.

Unfortunately this isn't true. I serviced mine every 10k, doing 30k a year using Quantum LL3 and genuine filters and mine rattled at around 135k. Ended up selling it. It was a 2008 ASB engine too.

rowdy-999
05-07-2016, 03:52 PM
But there's plenty of 3.0s with double that mileage with no issues.

B5NUT
05-07-2016, 04:02 PM
My BMK engine is on 210K miles, and has a slight rattle at start-up, was going to get all the chains/tensioners done this year but I'm putting off now until next year, it's not got any worse and has been like that for a few years.

niedzial1983
05-07-2016, 04:45 PM
Mine is 115k at the moment and im doing 10-15k a year

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

rowdy-999
05-07-2016, 05:50 PM
My BMK engine is on 210K miles, and has a slight rattle at start-up, was going to get all the chains/tensioners done this year but I'm putting off now until next year, it's not got any worse and has been like that for a few years.


The tensioners are operated by oil pressure, so i would say a slight rattle on start up is normal. A rattle at any other time would be a concern.