Not another tension failure... That's whats wrong with my GTI!

[jhunter_83]

No not mine for sale mate, vw blamed carbon build up in the exhaust but I think they may have put too much oil in on its service the day before and it's been sucked through the breather hose.

It seems to be running fine at the minute.

[Snoopy]

Good to hear its ok and not terminal.
As were similar areas may I ask what dealer? PM if you prefer.
Thanks
Geoff.

[Obbzi]

I haven't been on here much lately, I have been avoiding the forum trying to save money!

Anyway I cant believe there are more tension failures leading to all these catastrophic engine failures. 

Like a few people have suggested I have also been in touch with VW customer care (via email) and stated my concerns and asked if they are going to be doing anything about it or offer a reduced price to get the new tensionr fitted.

Will see what their reply is 

[RocketRossUK]

I haven't been on here much lately, I have been avoiding the forum trying to save money!

Anyway I cant believe there are more tension failures leading to all these catastrophic engine failures. 

Like a few people have suggested I have also been in touch with VW customer care (via email) and stated my concerns and asked if they are going to be doing anything about it or offer a reduced price to get the new tensionr fitted.

Will see what their reply is 

can you PM the email that you sent, as i would like to send one similar to yours.

Thanks

[Hartside]

I don't understand why they don't just put a delay into the firing of the engine on start up and let the starter motor build the oil pressure. This must be able to be done in the software. Surely it fails on ignition and the resulting power produced by the engine causes the problem. If failure did occur on the starter motor (which I would doubt) the resulting damage would be far less

[Snoopy]

I don't understand why they don't just put a delay into the firing of the engine on start up and let the starter motor build the oil pressure. This must be able to be done in the software. Surely it fails on ignition and the resulting power produced by the engine causes the problem. If failure did occur on the starter motor (which I would doubt) the resulting damage would be far less

Wouldn't really work.
It fails at shutdown. As oil pressure reduces the tensioner falls back on its inbuilt ratchet to keep the tension on the chain. If the ratchet is faulty the tension comes off the chain. When you go to start the car the chain slips due to no or lack of tension on the chain.  Oil pressure build the chain becomes tensioned normally a couple of teeth out. The ecu notices this and retimes the cams (Stupidly) to keep the car running.

What they should do is reprogram so as soon as the timings off the car shuts down and disconnects the starter and flags engine light on the dash.

What they should have also done in a new design like the mk7 was fit a sprung loaded standard mechanical tensioner too like everyone else does.

[Hartside]

Thanks Snoopy, understand that but isn't the ratchet there until oil pressure builds. If you can build pressure it would reduce the need for the ratchet or am I missing something 

[Snoopy]

True if you could run the oil pump by iteslf to get pressue it would work.
but to do so would meen the engine turning over. Which would cause the chain to move, which at that time would be not tensioned.
Also depending how much tension has come off the chain while standing there is no guarantee retensioning it with oil pressure that it would retension on exactly the same teeth.

The way they have done it is a not great imho. Even that ratchet when working perfect may not give it enough tension as the chain and teeth are not really man enough they should have been much deeper teeth to reduce the risk if it slipping imo.

Its all build to risk v cost sadly.

They lost me as a mk7 customer because of this but they wont care plenty of people to replace others like me.

[Obbzi]

I haven't been on here much lately, I have been avoiding the forum trying to save money!

Anyway I cant believe there are more tension failures leading to all these catastrophic engine failures. 

Like a few people have suggested I have also been in touch with VW customer care (via email) and stated my concerns and asked if they are going to be doing anything about it or offer a reduced price to get the new tensionr fitted.

Will see what their reply is 

can you PM the email that you sent, as i would like to send one similar to yours.

Thanks

I don't have a copy of it sorry, I sent it to Customer services via the VW website so it was a message rather than an email. I have a voicemail from them and need to ring them back on Monday

[AaronMc]

I also sent them an email but got a phone call back and all they said was if your worried and it's noisy, get it booked in to be looked at and if found at fault the goodwill process can then be started.

Mine hasn't got any fault yet but I was just asking them if they would replace as preventative maintenance but don't seem interested..