Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Please note that it is not permitted to have referral links posted in your signature. Keep these links contained in the appropriate forum. Thank you.

https://www.boards.ie/discussion/2055940817/signature-rules
Hi all! We have been experiencing an issue on site where threads have been missing the latest postings. The platform host Vanilla are working on this issue. A workaround that has been used by some is to navigate back from 1 to 10+ pages to re-sync the thread and this will then show the latest posts. Thanks, Mike.
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

A6 timing belt

  • 22-06-2021 10:36am
    #1
    ericsinjun
    Registered Users Posts: 111 ✭✭


    Hello all,

    Mrs Eric has an A6 2.0 TFSI. Wouldn't start on the driveway the last day, local mechanic had a look & said timing belt gone.
    Is the damage the same even if engine wasn't running?


Comments

  • #2
    Toyotafanboi
    Registered Users, Registered Users 2 Posts: 12,917 ✭✭✭✭Toyotafanboi


    ericsinjun wrote: »
    Hello all,

    Mrs Eric has an A6 2.0 TFSI. Wouldn't start on the driveway the last day, local mechanic had a look & said timing belt gone.
    Is the damage the same even if engine wasn't running?

    The timing chain is gone, they are a chain, not a belt iirc.

    Damage from chain slipping or stretching can be hard to quantify bar the fact that it is broken without stripping down the engine.

    You may get lucky and just need a new chain and tensioners etc, you may have damage to cylinder head (that is likely IMO), you may also have damage to pistons but this wouldn't be too likely. The only way to find out accurately though is split the engine and see.


  • #3
    ericsinjun
    Registered Users Posts: 111 ✭✭ericsinjun


    Toyotafanboi wrote: »
    The timing chain is gone, they are a chain, not a belt iirc.

    Damage from chain slipping or stretching can be hard to quantify bar the fact that it is broken without stripping down the engine.

    You may get lucky and just need a new chain and tensioners etc, you may have damage to cylinder head (that is likely IMO), you may also have damage to pistons but this wouldn't be too likely. The only way to find out accurately though is split the engine and see.

    Thanks


  • #4
    run_Forrest_run
    Registered Users, Registered Users 2 Posts: 6,446 ✭✭✭run_Forrest_run


    would the driver get any advance warning of something like this happening, especially with a chain, for example, noises or poor driving feedback etc?


  • #5
    Ish66
    Registered Users, Registered Users 2 Posts: 462 ✭✭Ish66


    run_Forrest_run wrote: »
    would the driver get any advance warning of something like this happening, especially with a chain, for example, noises or poor driving feedback etc?
    Ahh Don't go down Blame Game Rd, Mostly its sudden.


  • #6
    run_Forrest_run
    Registered Users, Registered Users 2 Posts: 6,446 ✭✭✭run_Forrest_run


    Ish66 wrote: »
    Ahh Don't go down Blame Game Rd, Mostly its sudden.

    :D no, I'm honestly not but I'd like to know, surely a chain will have less of a tendency to fail suddenly compared to a belt, is there any truth in that?


  • Advertisement
  • #7
    Ish66
    Registered Users, Registered Users 2 Posts: 462 ✭✭Ish66


    Its very rare for a chain to snap, Belts do in a flash. Normally chains get slack but the tensioner would normally take care of slack. You are the first snapped chain I ever heard of tbh. Something else caused it to snap.
    I did hear of a chain connector link coming out once but its rare.
    It sounds like something else failed first.


  • #8
    mickdw
    Registered Users, Registered Users 2 Posts: 23,462 ✭✭✭✭mickdw


    Ish66 wrote: »
    Its very rare for a chain to snap, Belts do in a flash. Normally chains get slack but the tensioner would normally take care of slack. You are the first snapped chain I ever heard of tbh. Something else caused it to snap.
    I did hear of a chain connector link coming out once but its rare.
    It sounds like something else failed first.
    My 1.8 tfsi was on the verge of skipping over a tooth when i brought it in to change it so maybe thats what happened. So much for the lifetime chain - and ive owned mine from new and serviced on time with top quality oil. It lasted to about 140k miles.


  • #9
    Toyotafanboi
    Registered Users, Registered Users 2 Posts: 12,917 ✭✭✭✭Toyotafanboi


    mickdw wrote: »
    My 1.8 tfsi was on the verge of skipping over a tooth when i brought it in to change it so maybe thats what happened. So much for the lifetime chain - and ive owned mine from new and serviced on time with top quality oil. It lasted to about 140k miles.

    That was actually very good going for one of them.

    A poorly maintained one mightn't have went half that distance. Not that that makes it ok or anything.


  • #10
    mickdw
    Registered Users, Registered Users 2 Posts: 23,462 ✭✭✭✭mickdw


    Toyotafanboi wrote: »
    That was actually very good going for one of them.

    A poorly maintained one mightn't have went half that distance. Not that that makes it ok or anything.

    Ok so at least my servicing served some purpose.
    I had convinced myself i wouldnt see that issue at all by keeping the oil right. No such luck.


  • #11
    Toyotafanboi
    Registered Users, Registered Users 2 Posts: 12,917 ✭✭✭✭Toyotafanboi


    You'd be forgiven for thinking so, but they are junk unfortunately. Years ago you'd prefer a chain on a car, but anything half ways modern a belt is actually the more reliable article.


  • Advertisement
  • #12
    mickdw
    Registered Users, Registered Users 2 Posts: 23,462 ✭✭✭✭mickdw


    Toyotafanboi wrote: »
    You'd be forgiven for thinking so, but they are junk unfortunately. Years ago you'd prefer a chain on a car, but anything half ways modern a belt is actually the more reliable article.

    Is the later chain any better do you know? I fitted genuine one from audi that appeared to be different design.


  • #13
    Toyotafanboi
    Registered Users, Registered Users 2 Posts: 12,917 ✭✭✭✭Toyotafanboi


    Ah, honestly, no.

    Be very common with any of the TSI engines to see repeat failures particularly on the smaller 1.2's and 1.4's but generally it can and does happen again.

    The only this is, and it's terrible to say if you get another 140k miles out of this chain and you still have the car you probably won't mind doing another.

    Currently dealing with one that had a chain very early, 32k kms, had another chain at 125k kms and now needs another at 181k kms. All genuine chains, good service history.


  • #14
    mickdw
    Registered Users, Registered Users 2 Posts: 23,462 ✭✭✭✭mickdw


    Toyotafanboi wrote: »
    Ah, honestly, no.

    Be very common with any of the TSI engines to see repeat failures particularly on the smaller 1.2's and 1.4's but generally it can and does happen again.

    The only this is, and it's terrible to say if you get another 140k miles out of this chain and you still have the car you probably won't mind doing another.

    Currently dealing with one that had a chain very early, 32k kms, had another chain at 125k kms and now needs another at 181k kms. All genuine chains, good service history.

    Ah the car owes me nothing at this stage. Audi A5 - Ive it 13 years since new and at 170k miles now on original clutch, it hasnt done too bad. Im looking to get something else now.


  • #15
    [Deleted User]
    Posts: 0 ✭ [Deleted User]


    ericsinjun wrote: »
    Hello all,

    Mrs Eric has an A6 2.0 TFSI. Wouldn't start on the driveway the last day, local mechanic had a look & said timing belt gone.
    Is the damage the same even if engine wasn't running?

    You didn't say what year it is. The earlier models had a belt and a chain, later ones just a chain.


  • #16
    James Bond Junior
    Registered Users, Registered Users 2 Posts: 5,140 ✭✭✭James Bond Junior


    mickdw wrote: »
    Ah the car owes me nothing at this stage. Audi A5 - Ive it 13 years since new and at 170k miles now on original clutch, it hasnt done too bad. Im looking to get something else now.

    That's environmentally friendly motoring despite what the greens might say.


Advertisement