Yes, I have not seen any passat TDI timing belt replacement article anywhere. Your engine is different than the one shown in the article. It does not apply to you.
Edit: there is now one that can be found here:
http://www.myturbodiesel.com/1000q_how_to/b5/bhw_timingbelt_1.htm
There is no way to tell if a belt is good or not unless there is some obvoius failure. Unless it's brand new, there is no way to tell how many miles are on it. The way they normally fail is a single tooth breaks off and that's the end of the valves. It's very rare to have it actually split and snap. Other failures are because a pulley or roller seizes and causes the belt to snap.
The timing belt change interval for your 2005 Passat BHW engine is before every 100,000 miles. I don't want to scare you but look through the maintenance log or receipts, ask the previous owner(s) to figure out if the timing belt has ever been changed. If not, I would not drive the car except in an urgent situation because if that's 26% over the intended timing belt life. Can it last longer? It's possible but the farther you go over 100,000, on average, the more likely a failure.
Years ago, my Mitubishi was going to have the timing belt changed on the weekend. It was already overdue and the timing belt broke that week. I learned my lesson fast.
If I were you: I would have the timing belt changed ASAP along with the water pump and all rollers. You can buy the parts here:
http://www.tdiparts.com/catalog/product_info.php?cPath=24_95&products_id=1047 . By this mileage your oil chain may also be making noise. I hate to tell you, but the oil chains on the BHW engine get play and break. If it breaks, it wipes out the engine. The only fix is to replace it with a new oil pump assembly that uses a gear drive to replace the chain assembly.
An approximate total cost of labor+parts for the timing belt, timing belt labor, oil chain assembly and oil chain assembly labor is about $3000. It's best to have it done all at once since the timing belt has to come off to replace the oil chain assembly.
Parts can be purchased here:
http://www.worldimpex.com//parts/genuine-part-bhw-module-repair-kit-passat-bhw_935619.html or here:
https://www.boraparts.com/product_info.php?products_id=270
I am not aware of any dealer which is familiar with this problem because it's such a rare car and because the updated part is from a European TDI (they fixed the problem in Europe but not in the US because these are rare cars). You could try this mechanic:
Import Auto Werks
1823 E Millbrook Rd # 106
Raleigh, NC 27609
(919) 871-5850 Chris Dale (eastern NC)
These guys have already done this repair at least once:
German Speed Merchants
300 Old Dairy Rd
Wilmington, NC 28405
(910) 791-4844
It's not an endorsement but these shops have worked on TDIs and German Speed Merchants have already done this repair at least once. Here are instructions from some TDI specialists on another forum, Mogolf and oilhammer, on how to do the replacement:
.pdf file . Here are more instructions on this site:
http://www.myturbodiesel.com/1000q_how_to/b5/balanceshaft _moduleReplace.htm
