Rubber bits!
12-04-2008, 05:37 AM
#1
Rubber bits!
If anyone followed the "timing belt failure" on the D3 forum. It would seem that the Cam related DTC warning was a sign that the belt tensioner had given up it's responsibilities.
We must not be too easy to condemn the rubber parts!
The text from the victim's followup pasted below:
QUOTE]
Update on my timing belt-not as bad as I thought
Posted by: BongoCruiser on 2008-12-03 17:57:58
Account #: 54861
In Reply to: OMG Timing belt broke on my 2004 A8, catastrofic damage-WTF posted by BongoCruiser on 2008-12-02 11:20:42
Thanks for all the replies-only a few pointed out I was being a cheap idiot, I'm sure I'm not the only one guilty of postponing a $1500 preventative maintenance job.
Turns out my engine was ok. When I got the first call the belt was hanging limp. It turns out the problem was that the hydralic tensioner failed. When he removed the belt the cams lined up and the engine was not damaged. Turns out I was very lucky and I only need the belt job and the tensioner fixed. Something for everyone to think about because it seems to me that the failure I experienced is not directly related to the mileage.
Looking forward to your replies.
End of QUOTE]
SO!
Change those tensioners! Replace those idle rollers! Install a new water pump! And while you are in there, put on a new timing belt. Cheap enough part. ;-))
Off the stump
Cal
We must not be too easy to condemn the rubber parts!
The text from the victim's followup pasted below:
QUOTE]
Update on my timing belt-not as bad as I thought
Posted by: BongoCruiser on 2008-12-03 17:57:58
Account #: 54861
In Reply to: OMG Timing belt broke on my 2004 A8, catastrofic damage-WTF posted by BongoCruiser on 2008-12-02 11:20:42
Thanks for all the replies-only a few pointed out I was being a cheap idiot, I'm sure I'm not the only one guilty of postponing a $1500 preventative maintenance job.
Turns out my engine was ok. When I got the first call the belt was hanging limp. It turns out the problem was that the hydralic tensioner failed. When he removed the belt the cams lined up and the engine was not damaged. Turns out I was very lucky and I only need the belt job and the tensioner fixed. Something for everyone to think about because it seems to me that the failure I experienced is not directly related to the mileage.
Looking forward to your replies.
End of QUOTE]
SO!
Change those tensioners! Replace those idle rollers! Install a new water pump! And while you are in there, put on a new timing belt. Cheap enough part. ;-))
Off the stump
Cal
12-04-2008, 02:37 PM
#6
AudiWorld Member
Here's the chart I go by...
<center><img src="http://pictureposter.audiworld.com/141426/file1.jpg"></center><p>Sorry, had to cut out the middle to make it fit here.
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12-04-2008, 07:05 PM
#8
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Notice your chart says to replace the tensioner and rollers ONLY on ..
... the V6!! Not the 4.2L ... So the Audi chart says to do timing belts at 105 but to leave the rollers and tensioner alone.
12-05-2008, 11:44 AM
#9
AudiWorld Member
I am not endorsing this chart, but I do wonder why
we think we know more than Audi about this matter. I think the impressions of members of this board that the service interval may be correct, but are probably based more on anecdotal evidence than anything else. I personally am doing mine at about 75-90k intervals.
The reason I threw out the question regarding if D3 TB service intervals are shorter is because it is pretty much the same engine and I wonder if Audi has learned anything that would cause them to shorten the interval.
The reason I threw out the question regarding if D3 TB service intervals are shorter is because it is pretty much the same engine and I wonder if Audi has learned anything that would cause them to shorten the interval.
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