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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 June 29th, 2020, 21:14   #46
romad
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80K according to everything I read. California mandated a longer interval on timing belts (not just for VWs) but since the BEW TDIs were banned from being sold in the CPR, that doesn't apply.
Since the dealer had changed it at about 72K just before I bought my Jetta in 2011, I had Guru Matt Phelan (Matt-98AHU here) change it in October 2011 as part of a 150K service.

So, how are the goats doing, and how are you and your mom doing in Bandera with the pandemic? I hear nightly about a spike in Texas.

Dennis
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Last edited by romad; June 29th, 2020 at 21:30. Reason: Added pandemic question.
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Old June 30th, 2020, 08:32   #47
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Quote:
Originally Posted by romad View Post
80K according to everything I read. California mandated a longer interval on timing belts (not just for VWs) but since the BEW TDIs were banned from being sold in the CPR, that doesn't apply.
Since the dealer had changed it at about 72K just before I bought my Jetta in 2011, I had Guru Matt Phelan (Matt-98AHU here) change it in October 2011 as part of a 150K service.

So, how are the goats doing, and how are you and your mom doing in Bandera with the pandemic? I hear nightly about a spike in Texas.

Dennis
Hey Dennis. We've been well. Our county's cases almost tripled overnight, but from 6 to 16. We also have under 23K people, so it's really not a lot. From what I hear, it's a matter of resting at home and getting over it (here in the county). I'm not too worried; being around my cows and goats, I'd think my immune system is pretty resilient (and I haven't had the flu in like a decade and a half).

I actually just got an answer from dieselgeek - original belt is 80K, their belt is 100K (what's on the car since the head was rebuilt at 258K). I guess that gives me some time then.
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Old June 30th, 2020, 08:57   #48
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Hey Dennis. We've been well. Our county's cases almost tripled overnight, but from 6 to 16. We also have under 23K people, so it's really not a lot. From what I hear, it's a matter of resting at home and getting over it (here in the county). I'm not too worried; being around my cows and goats, I'd think my immune system is pretty resilient (and I haven't had the flu in like a decade and a half).
I actually just got an answer from dieselgeek - original belt is 80K, their belt is 100K (what's on the car since the head was rebuilt at 258K). I guess that gives me some time then.
Good to hear that.
I bought my replacement belt from IDParts so I may ask them what is the interval for it.

BTW, what brand was the belt you installed?
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Last edited by romad; June 30th, 2020 at 09:08.
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Old June 30th, 2020, 11:31   #49
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I actually just got an answer from dieselgeek - original belt is 80K, their belt is 100K (what's on the car since the head was rebuilt at 258K). I guess that gives me some time then.
I don't think this is correct. VW changed the interval from 100K to 80K several years ago. My own opinion (not verified by anyone) is that VW wanted to create an opportunity for dealers to inspect camshafts. Regardless, the timing belt PN didn't change, and some literature may show a 100K interval. But VW's recommended change interval for any assembly is 80K miles.
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Old June 30th, 2020, 11:58   #50
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I would think that the QUALITY of the materials used and of the manufacturing process would determine life span. However, the fact that a California government agency declared timing belts have 105,000 mile change intervals means either there are special heavy duty belts (probably containing Aramid fiber?) just for the CPR or all belts are supposed to last for at least that long, but the auto manufacturers and their dealers arbitrarily require more frequent changes to boost profits.
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Old June 30th, 2020, 12:39   #51
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There's no variation in recommended intervals between major timing belt component manufacturers for the PD engined cars (Gates, Continental, INA, GMB). Nor is there for earlier (or later) cars. Some people are more confident with one manufacturer than another, but any of the major suppliers' kits will last the full 80K interval. Beyond that, you're on your own.

Can belts and components last longer than their recommended change interval? Sure. How much longer? Who knows? Not a good gamble to take, in my opinion. I postponed changing the timing belt on my Miata (time, not miles) but that's not an interference engine. Worst case I'd have to get it towed. On TDIs, the consequences are more severe.
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Old June 30th, 2020, 15:45   #52
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And since California banned the sale of diesel cars beginning 1 Jan 2004 until the common rail engines were released, its 105,000 mile timing belt doesn't apply to them. However it does apply to new MY vehicles sold after the resumption of diesel car sales.
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Old June 30th, 2020, 16:07   #53
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You're safe there. '09 and later cars have a 120K mile change interval. Regardless, I'd consider CA's rule nonsense. Whose guidance are you better off following, the engineers who designed the engine and tested the components and selected suppliers, or legislators?
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Old June 30th, 2020, 19:00   #54
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You're safe there. '09 and later cars have a 120K mile change interval. Regardless, I'd consider CA's rule nonsense. Whose guidance are you better off following, the engineers who designed the engine and tested the components and selected suppliers, or legislators?
Remember that here the California Air Resources Board doesn't care what the engineers say; CARB has total control over anything, including parts, that affect vehicle emissions.
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Old July 1st, 2020, 02:26   #55
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I'd be interested to know if or how they enforce a timing belt change interval.
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Old July 1st, 2020, 07:56   #56
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I'd be interested to know if or how they enforce a timing belt change interval.
Probably by requiring it and any damage be fixed by the dealer for free if it fails before 100,000 miles. Of course this would be via the emissions rules under a new car's emissions warranty, and for those outside the warranty if the owner can prove the mileage when the broken belt was installed and when it failed. Be interesting who is responsible for out-of-warranty failures, belt manufacturer, service shop that did the installation, vehicle manufacturer. CARB doesn't really care about the details.
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