Getting a TB Service Next Year - What else should be replaced?

[Analogeezer]

2013 TDI Sportwagen, owned since new. Got the "fix" some years back at around 64,000 miles. DPF failed shortly afterwards (which is awfully coincidental) but all has been well since then; car currently has 126,600 miles on it. Oh new DPF was covered by the warranty. I have VCDS and the current rate of ash load accumulation is spot on. The Stealership told me the DPF was clogged but a more likely scenario was it cracked.

It threw a CEL, which you could clear but would come back in 25 to 100+ miles. The car ran just fine.

Doing the TB job is WAY beyond my capabilities so farming it out to the VISA wrench, will be using a highly rated indy who specializes in TDI's, old and new.

So the TB service kits have the belt of course and the various rollers/tensioners that should be replaced.

Given all the stuff that has to be removed to do that job; is there other stuff that should be done "while they are in there"?

I had a Mazdaspeed Miata for almost 19 years and the TB service for those cars, they recommended replacing the front main seal. But from what I have read this is not an easy part to access and replace. It's not leaking but beyond 130k it might start; is it worth the money to have this done?

HPFP - mine has been rock solid, car has never been missfueled or any issues with the HPFP.

But it is my understanding it is driven by the TB, and has to be moved out of the way to do the service.

It's a rather expensive part, close to $800....worth replacing "while you are in there?"

I love the car (it's the oh so rare manual, base version) and plan to keep it for a long long time.

Let me know any other things I should consider replacing.

Thanks!

Analogeezer

 

[lemoncurd]

timing belt and everything it touches. rollers, water pump, tensioner.
throw a new serpentine belt on. you should do that one every 40k, if it fails it can get sucked into the crankshaft cog/gear, and cause the motor to skip timing

leaving the HPFP alone if you havent had any issue's, and the filter has been done every 20k miles. i have 244k miles on my original HPFP, no issues.

at 244k on my 2013, i dont have any leakage from the front seals. though, at my mileage i am considering replacing them while im in there..
for <100k / first t-belt, dont worry about the seals unless theyre damaged / leaking.

 

[Analogeezer]

timing belt and everything it touches. rollers, water pump, tensioner.
throw a new serpentine belt on. you should do that one every 40k, if it fails it can get sucked into the crankshaft cog/gear, and cause the motor to skip timing

leaving the HPFP alone if you havent had any issue's, and the filter has been done every 20k miles. i have 244k miles on my original HPFP, no issues.

at 244k on my 2013, i dont have any leakage from the front seals. though, at my mileage i am considering replacing them while im in there..
for <100k / first t-belt, dont worry about the seals unless theyre damaged / leaking.

Wow great advice, much appreciated. Yes the fuel filters were always changed right on time at 20k. Thanks!

Analogeezer

 

[tjg]

throw a new serpentine belt on. you should do that one every 40k, if it fails it can get sucked into the crankshaft cog/gear, and cause the motor to skip timing

I installed the aluminum guard to prevent this when I did my TB service

 

[MrCypherr]

I'm getting that new lower timing belt guard on my next TB service. Just to have as cheap insurance. But like said, Just replace all the rollers, water pump, tensioner, belt etc.

 

[Analogeezer]

I installed the aluminum guard to prevent this when I did my TB service

Well that sounds like a great idea, who makes them/sells them?

Analogeezer

 

[Garrison]

Well that sounds like a great idea, who makes them/sells them?

Analogeezer

Common Rail TDI Lower Timing Belt Cover

After multiple customer requests and seeing a handful of shredded serpentine belts get sucked into the timing belt, we felt a solution was necessary for the CBEA/CJAA motors. CNC machined in house from 6061 aluminum, these fit much tighter around the harmonic balancer to effectively eliminate...

whitbreadperformance.com

Aluminum Lower Timing Cover, Common Rail (Eurospec) – Cascade German Parts

www.cascadegerman.com

 

[McGuirk]

Also a good idea to replace the alternator pulley. You do need a special bit however. Metalnerd sells it on their website. The crankshaft seal is another item you can get replaced since your in that area. Relatively easy.