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2002 Passat AWM 1.8T rattle at idle [VIDEO])

8K views 19 replies 10 participants last post by  mikefl  
#1 · (Edited)
Hi gentlemen,

I have a slight rattle/knock on my 2002 1.8T 126K AWM TIP.

I recently did an oil change and put in 1qt ATF by mistake, then I drained it all out and refilled with 0w40 Mobil1.

However this slight rattle has been there for a long time.

Here's the video.

http://s1192.photobucket.com/albums/aa339/mikefllorida/?action=view&current=6cbdb0dd.mp4

Can you please advise if this is something I need to be worried about ? I got spooked by the W8 thread so I need your opinion, is this something serious?

EDIT: updated video below.
 
#5 ·
same thing

i got 2002 b5.5 1.8t that has the sound. i have been told by few people already including one vw trechnician, that its normall sound for 1.8t, and not much can be done. i dont really like it. I'll be doing my timing belt probably this weekend and same time will replace Vw Passat Valve Cover Cam Chain Tensioner Gasket Kit - 1.8L » ENHANCED Plus Kit » 2000-05 w/ AUG or AWM Engine Code ««« ---- FREE Shipping ---- »»» from blauparts.com. will see if it helps, because it sounds like sound comes from right under valve cover.
 
#14 ·
^^ There is no performance loss the car runs fine. I am just trying to be proactive and being alert about the next thing that might break. I am getting paranoid though, every little noise out of the ordinary is making me suspicious. :)

In addition to the ticking there is also a knocking sound, though it's not very loud so you have to be looking for it to hear it.
 
#15 ·
I am having BOTH of those same noises on my 2003 AWM. Not sure where the noise is coming from. I used a mechanics stethoscope and listened to the T-Belt area (thinking it might be a belt tensioner bearing wearing out) but it sounds fine with the stethoscope and so does the area by the cam tensioner so I am stumped. I do know if either one of those breaks it can severely mess up the head so we can't just ignore it until we know if it's normal.
 
#16 · (Edited)
As an update Mike. I just switched brands and weights of oil (went back to M1 0W-40) and ran Chevron Techron Fuel System cleaner into the tank and noticed a quietening of the noises I have. Not sure if it's related or not. I am still gonna do the cam tensioner when I replace the T Belt in a couple of months though. I should also note mine has almost 177K.
 
#20 · (Edited)
I now have 133980mi on my 1.8T.

The rattle is gone after I put in AutoRx with conventional oil. (Valvoline 10W40 with one bottle AutoRx for 2800mi)

I am in the rinse phase currently, again with same oil, will do the oil change after 2500mi. Looks like AutoRx treatment has cured the rattle coming from the engine.

Listen to the video below and compare it with the older video up in the first post.

http://i1192.photobucket.com/albums/aa339/mikefllorida/3d118833.mp4

What do you guys think? Is the rattle gone?

If you don't hear the rattle, that means AutoRx actually works.