Hydraulic to Mechanical Timing Belt Tensioner Conversion AVB

Hello,

Has anyone ever converted the timing belt system on a Passat 3BG 1.9 TDI AVB from a hydraulic system to a mechanical system, and can you tell me what I would need for that?

Unfortunately, I mistakenly purchased the Conti CT1028 WP4 set a few months ago, and I can no longer return it. That's why I'm asking about the possibility of modifying it.


Best regards and many thanks .

Hi,
The AVB is a permanent magnet synchronous motor, right? Was a wider toothed belt, along with a hydraulic tensioner, used exclusively for the loads in the drive?
Just compare the width of the timing belts.
I think you can't revert to the VP drive (maybe you can, but how long would the belt last then?).
hg
Herbert.

Later, it was switched to the standard tensioner, and the replacement interval was increased from 60,000 to 90,000 km.

Can you tell us the model year and the engine codes?

I also received the information about the change. It seems this was implemented starting in 2003 and from vehicle identification number 3B-3-072 001 onwards. The AVB (presumably a specific component or system) was likely also affected.
Both the old and the new timing belts have 120 teeth and a width of 30mm.
So, I would now assume that it's possible to modify the system without much effort, or am I wrong about that?

The Passat B5 was produced until the end of the 2000 model year. The AVB engine was available in the Audi A4 B6 until 2004. Therefore, the change could not have occurred in the Passat.
Perhaps the differences can be determined by examining the AKTE images of the A4 B6. I don't know if the modification also involved changes to other components, or whether the tooth spacing was also altered as a result of the change.

Edit: Sorry, the B5 model was produced with a facelift until 2005 as the 3BG, so the change also applies to that model.