D5 Engine. Maintenance that must be done. Pt1.

Ex850R · 2018-04-17T12:03:05+00:00

Volvo dealers were quietly replacing the tensioners on these pre 2010 models. It's usually audible when there's a problem so most people would have to be ign...

VolvoMike

The T5 belt is 23mm wide and D5 29mm. I've seen no issues in replacing them at the 10 year 150k or 180k for the D5 interval. Serpentine belt indeed can cause issues but that can be replaced.

Regards,

Michael

Ex850R

Width is irrelevant to longevity as age and deterioration is the thing.
The idea that saving a few bux by going a couple of years more and 30,000 or 50,000 kilometres more is good value then good luck , to me the dollars are a good investment and its a small cost to stop a very expensive and inconvenient result.

Chris

By all means get it done but Berry have said exactly the same to me about D5 belts rarely failing, and as I said they have been watching mine for nearly 2 years now without wanting to do it. I'll get it done soon though.

Philia_Bear

VolvoMike;135124 wroteThe T5 belt is 23mm wide and D5 29mm. I've seen no issues in replacing them at the 10 year 150k or 180k for the D5 interval. Serpentine belt indeed can cause issues but that can be replaced.

Regards,

Michael

I've seen one D5 belt snap at 4 years and 50k km
Pulled vida logs and... ohh... it spent 8+ hours a day every day idling....
Volvo ate that one but was unhappy about it....
It also got a DPF regen at nearly every service

I've seen >100 snap prior to the 10 year mark... most of them at 8/9 year mark and 100-120k km
All of them were 95%+ city cars with stupid total engine hour counts

Ex850R

Ey Mike @Philia_Bear, is there a better quality belt available?
I haven't had time to research D5 stuff on the websites, well, only tunes and exhaust kits... But won't do that stuff it's got plenty of grunt.

Philia_Bear

Ex850R;135143 wroteEy Mike @Philia_Bear, is there a better quality belt available?
I haven't had time to research D5 stuff on the websites, well, only tunes and exhaust kits... But won't do that stuff it's got plenty of grunt.

Continental or Volvo and you cant go wrong
Its a big and heavy belt so... under normal mix driving use... 7 years and 100k is never an issue
if all highway... 7 years and 150k is also fine... the 100 vs 150 thing is just average speed == total engine hours

Ex850R

Anything else needed or worth modifying?
We are doing the swirl parts as needed, de coking as needed.
Maybe I could do DPF and egr delete? With tune of course. Makes it expensive though.

Philia_Bear

Ex850R;135146 wroteAnything else needed or worth modifying?
We are doing the swirl parts as needed, de coking as needed.
Maybe I could do DPF and egr delete? With tune of course. Makes it expensive though.

dpf delete.... remove DPF and remove hose... never look back...
you only need the tune to get rid of the exhaust stroke injection

EGR delete... mehh... just clean it once a year and its fine... its not that hard...

Ex850R

Thanks @Philia_Bear

Philia_Bear

Ex850R;135153 wroteThanks Mike.

who is mike?

Ex850R

Philia_Bear;135154 wrote
Ex850R;135153 wroteThanks Mike.
who is mike?

Who indeed.
*fixed.

ToomanyVolvos

Just by coincidence with this thread my daughter's C30 T5 just had it's accessory drive belt snap about 10 days ago. I'm actually OS and she's just told me.

Normally I wouldn't be overly concerned about just a an accessory drive belt failing but what I was told is that she heard the noise whilst at idle in traffic, then she tried to drive to a safe place to stop and as soon as she applied power the car stopped and wouldn't start! My immediate thought is that the computer wouldn't shut down the engine with just an accessory drive belt failure, so something much more sinister like the belt damaging the timing belt cover and throwing that belt is possible.

Anyone know if this scenario is likely on the T5, as it is apparently is on the D5. I cannot inspect it till back in a few days. I want to look at it before sending to one of the shops I use because this particular car was serviced just 2k ago by the Annlyn Penrith including the timing belt, tensioners and both accessory belts.... So if the new belt snapped and caused chaos then I'll be asking them to come to the party.

The engines run beautifully in the last 2k with absolutely no noises or sign that the accessory tensioner was about to fail, so this is really disappointing.

Ex850R

Yes indeed that is a poor run for a new belt!
I saw video of old belt on new tensioner and then new belt. You probably couldn't tell that belt was worn without actually looking at it.

Philia_Bear

ToomanyVolvos;135623 wroteJust by coincidence with this thread my daughter's C30 T5 just had it's accessory drive belt snap about 10 days ago. I'm actually OS and she's just told me.

Normally I wouldn't be overly concerned about just a an accessory drive belt failing but what I was told is that she heard the noise whilst at idle in traffic, then she tried to drive to a safe place to stop and as soon as she applied power the car stopped and wouldn't start! My immediate thought is that the computer wouldn't shut down the engine with just an accessory drive belt failure, so something much more sinister like the belt damaging the timing belt cover and throwing that belt is possible.

Anyone know if this scenario is likely on the T5, as it is apparently is on the D5. I cannot inspect it till back in a few days. I want to look at it before sending to one of the shops I use because this particular car was serviced just 2k ago by the Annlyn Penrith including the timing belt, tensioners and both accessory belts.... So if the new belt snapped and caused chaos then I'll be asking them to come to the party.

The engines run beautifully in the last 2k with absolutely no noises or sign that the accessory tensioner was about to fail, so this is really disappointing.

Yeah... that's not right
There are a few other things that will take the car out instantly like wiring

Ex850R

Let's hope so.

timbo

She may have just run the battery flat from lack of alternator belt. I've also seen the alternator freewheel/clutches fail and destroy the alternator in the process so if I have the belts off I always check the freewheel function

ToomanyVolvos

Totally shredded 2000KLM genuine inner accessory belt. On inspection it's very clear that the back of the belt rather than the ribbed side has been "gouged" prior to the failure. Alternator moves freely as does the tensioner. Mystery.

Still doesn't explain the no start that's occurred at the same time as the belt failure. Daughter says after the "noise", and then stop she only tried to start twice yet battery was dead today when I had a look. Fresh battery, engine turns over and camshaft can be seen turning.

ToomanyVolvos

Ok, so this gets worse for me. Got spark, got fuel, no codes..... Tried a compression test, ZERO.

Perhaps not being a "D5" I should've placed it in a separate thread.

So I've got a C30 that's done 1950 KLMS since having the timing belt kit and both accessory belts changed. Now I've got a snapped inner accessory belt and seemingly something wrong with the timing system.

I'll stop playing with it anymore till it goes back to the dealer who did the work.

No evidence of damage on the timing belt cover. Anyone have any idea how these two issues could have happened simultaneously?

Ex850R

Wooo, fun...
Yes, perhaps your stuff could go in new problem thread, @admin?
You will get better help.

Philia_Bear

ToomanyVolvos;136284 wroteOk, so this gets worse for me. Got spark, got fuel, no codes..... Tried a compression test, ZERO.

Perhaps not being a "D5" I should've placed it in a separate thread.

So I've got a C30 that's done 1950 KLMS since having the timing belt kit and both accessory belts changed. Now I've got a snapped inner accessory belt and seemingly something wrong with the timing system.

I'll stop playing with it anymore till it goes back to the dealer who did the work.

No evidence of damage on the timing belt cover. Anyone have any idea how these two issues could have happened simultaneously?

Yeah, start a new thread, if you flag your own post the mods can easily break it out for you

Penrith are pretty darn good people so I'm hopeful that they will investigate properly on what happened

On a T5 motor.... it could have sucked in a chunk of the serp belt which causes the t-belt to slip or break

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