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Discussion Starter · #1 ·
Had my chains measured today, not convinced its a tell tail sign of stretch but here is a thread to try and identify and patterns, I know there are a few variables so if you know of any additional variables let me know and I'll add them.

Readings: -4 + -5
Service due: 500 miles (6k intervals)
Type of servicing: T&D
Cold or hot engine: Up to temp
Type of oil used: Synergie iirc
 

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-6 -9
Engine cold
Just been serviced at time of reading
VW quantum oil
T&D servicing with 6 monthly oil changes

I want to change mine as soon as i can
 

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Forgive my ignorance, how do you get them measured? Not that I'll do anything if they are "bad"
As I'm not into scaremongering hahaa
 

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Discussion Starter · #7 ·
leericho said:
Forgive my ignorance, how do you get them measured? Not that I'll do anything if they are "bad"
As I'm not into scaremongering hahaa
On VCDS check measuring blocks 208 and 209 mine could of been -26276272 I wouldn't change them as its not proven
 

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What proof do you need?

These are the facts:

1) Pre-2005 chains can and have snapped without warning.

2) Dealers were changing chains out and replacing engines when they snapped, in response to facts 1 & 3.

3) http://www.cfiameric...s/24v/17755.pdf

4) If they stretch too far, the ECU can no longer see the cam position and you'll get no VVT and shite mpg.

5) VW have revised the chain parts 3 or 4 times since 2002

6) Post 2005 R32s don't have the problem

7) No one knows why they stretch. Some suspect short journeys, some suspect it's the 20K oil changes, some suspect neglect.

Take from that what you will but I certainly wasn't leaving my daily's fate to chance.

P.S Forgot to mention. My work colleague had the chain snap on his Mercedes last week. 4K to rebuild it. Car was essentially scrap value at £500, which is all the garage could offer him.

What I'm trying to say is it's quite a common problem and not just on VWs. People can either bury their heads in the sand and hope it won't affect them, stump up the cash and get it done, or sell the car at a reduced price. MK4 R32s are rare and buyers will have researched the chain issue.
 

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what are the limits? what readings should they be changed at?
 

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When the car is serviced at a reputable specialist, do they check this then when they check for errors?
 

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what are the limits? what readings should they be changed at?
Page 2 of the link I posted above suggests -9 to -14 to be the range where chain replacement should be done.

TBH, if you're at -9 now and it's not causing problems, waiting until you get the "Cam / crank engine speed - incorrect correlation" error in VCDS will buy some time. Then it really is the time to change the chains!
 

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Then again if you've bought it second hand how do you know what the readings were when the engine was new if you didn't scan it then.
 

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Page 2 of the link I posted above suggests -9 to -14 to be the range where chain replacement should be done.

TBH, if you're at -9 now and it's not causing problems, waiting until you get the "Cam / crank engine speed - incorrect correlation" error in VCDS will buy some time. Then it really is the time to change the chains!
Ive got "Cam / crank engine speed - incorrect correlation".

Its been on for the last 50k without any issues, ive seen NO change to performance at all. Im not fussed about changing mine although i'm changing them when i put the cams in, thats a no brainer.

If i wasnt fitting cams i was going to leave the chains. Mine makes very good bhp at the mo and runs perfectly. Its on 100k and is as strong as the day i bought it on 30k. Ive got graphs from the rolling road sessions its been on any they all are healthy.

I take it with a pinch of salt.

Also its worth noting that VW wont fit new chains if yours snap even with a complete service history from them. My friend who bought his R32 brand new had his chains snap at 18k, many many year ago. He had the work carried out at VW St Albans at a cost of £6400 to replace the engine and fit a new clutch at the same time.

^^Its this reason why i refuse to worry about "-" this and "-" that numbers^^

He fought for 4 months to try and get them to pay and they had none of it!! He had to put it on a credit card.
 

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I guess if the worst came to worst and this happened and you didnt want to fork out for a new engine.

It's time to whack up an advert and break her with dignity?!
 

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Ive got "Cam / crank engine speed - incorrect correlation".

Its been on for the last 50k without any issues, ive seen NO change to performance at all. Im not fussed about changing mine although i'm changing them when i put the cams in, thats a no brainer.

If i wasnt fitting cams i was going to leave the chains. Mine makes very good bhp at the mo and runs perfectly. Its on 100k and is as strong as the day i bought it on 30k. Ive got graphs from the rolling road sessions its been on any they all are healthy.

I take it with a pinch of salt.

Also its worth noting that VW wont fit new chains if yours snap even with a complete service history from them. My friend who bought his R32 brand new had his chains snap at 18k, many many year ago. He had the work carried out at VW St Albans at a cost of £6400 to replace the engine and fit a new clutch at the same time.

^^Its this reason why i refuse to worry about "-" this and "-" that numbers^^

He fought for 4 months to try and get them to pay and they had none of it!! He had to put it on a credit card.
But what are your measurements though? Chain stretch isn't the only cause of that error.

But fair enough. It's your choice to have your intake VVT locked to 27 degrees instead of being continuously variable like everyone elses


You do realise you need to drop the gearbox when you do the chains don't you? So if you're doing the big job of chains, clutch, DMF, cams etc, enjoy!
 

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But what are your measurements though? Chain stretch isn't the only cause of that error.

But fair enough. It's your choice to have your intake VVT locked to 27 degrees instead of being continuously variable like everyone elses


You do realise you need to drop the gearbox when you do the chains don't you? So if you're doing the big job of chains, clutch, DMF, cams etc, enjoy!
Ive not had mine scanned yet but ive replaced the cam sensors and its still throwing up the same code so i guess its probably the chains?

Ive not got a clue what your on about when you say its locked to 27 degrees?? I take it mines not locked as its running healthy bhp and nothing bad shows up on any graph. Smooth with that little dip at 4k like everyone else's.

Yes i more than realise. I have already bought a brand new clutch kit, i have this sitting here waiting. All i need to get now are the cams and chains. I have an inspection pit and a workshop so am doing this over the winter.
 
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