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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIV-A4 TDIs (VE and PD)

VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old May 22nd, 2020, 12:53   #16
jokila
 
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Speaking of curveballs, I had to fix a sudden coolant leak. It took awhile to find it, because the faulty hose was hidden behind other stuff. The offending part was a short section of hose that connects between the cylinder head and a T-fitting, underneath the vacuum pump.








Oil leaking from the vacuum pump must have softened the rubber. I replaced the seal for the vacuum pump when I replaced the timing belt a few months ago. So this shouldn't be an issue anymore.
Had the exact same problem with my coolant hose.
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Old May 28th, 2020, 07:45   #17
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The "wheel makeover" is complete! I'm very happy with the results. Here's a sneak peek:



I'll have a video up tomorrow.
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Old May 29th, 2020, 11:19   #18
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On these aftermarket wheels, the center caps are painted. But the rest of the wheel appears to be powdercoated. On the plus side, the powdercoat is holding up great. But the clearcoat on the center caps was peeling off. So I decided to refurbish the center caps. I also decided to add some VW badges for that "OEM Plus" look.


Here's a video of the work I put into it:

http://www.youtube.com/watch?v=9gZXiYvFPh4


And a shot of the finished product.

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Old June 1st, 2020, 12:27   #19
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Here's an update on the Jetta.

I had to revisit the catch can install, to fix some minor issues. Plus, the missing battery cover was bugging me. So I modified it to fit. Also, the engine cover was rubbing on the breather hoses, so I clearanced it. Also, I decided to put some filter media (metal Brillo pad) in the catch can, to make it more effective.

Here's a quick video about it: https://www.youtube.com/watch?v=pNthOSkQmRs
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Old June 26th, 2020, 11:18   #20
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It's been awhile since I posted anything Jetta related. That's because I've been chasing more cooling system issues. That split hose was just the beginning.

https://www.youtube.com/watch?v=wEer3b25d6A
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Old June 26th, 2020, 11:22   #21
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Here's an update on the Jetta.

I had to revisit the catch can install, to fix some minor issues. Plus, the missing battery cover was bugging me. So I modified it to fit. Also, the engine cover was rubbing on the breather hoses, so I clearanced it. Also, I decided to put some filter media (metal Brillo pad) in the catch can, to make it more effective.

Here's a quick video about it: https://www.youtube.com/watch?v=pNthOSkQmRs
Interesting on the steel wool filter, that kind of makes sense. Is your catch can baffled and it was still getting through the baffled part? I may have to do this to mine as well
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Old June 26th, 2020, 18:42   #22
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Interesting on the steel wool filter, that kind of makes sense. Is your catch can baffled and it was still getting through the baffled part? I may have to do this to mine as well
How about stainless steel scouring pads packed in a bit tighter?
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Old June 27th, 2020, 08:25   #23
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The catch can has a rudimentary baffle. But it's just a piece of perforated sheet metal. I think if it was made of screen or mesh, it would be more effective.

Also FYI those are stainless steel scouring pads. I wouldn't advise using steel wool.

Last edited by Blacktree; June 27th, 2020 at 08:43.
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Old July 3rd, 2020, 15:13   #24
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Recently, the Jetta has been making "coffee grinder" noises on start-up. I wasn't sure what was causing it. But someone on Facebook suggested gunk buildup inside the starter. So I decided to take the starter apart and see.

https://www.youtube.com/watch?v=eKQapdwFhPk

Long story short: lots of clutch dust, and the grease was breaking down. After cleaning out all the crud and applying fresh grease, the starter works like new.
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