[celtickevin70]

Just found the old topic re Dual Mass Flywheels:-

https://www.i30ownersclub.com/forum/index.php?topic=13773.0

I just wondered whether any problems had surfaced this this original posting. My 2007 Diesel 2.0l CRDi i-30 is going back to the dealership again next week with the distinct possibility that it will need it's 3rd flywheel in 12 months.

1st one lasted 4 years before going haywire and Hyundai trying to stitch me up for a new clutch. The replacements just aren't lasting. Problem happens, especially in 5th gear, car accelerates steadily until it reaches 2,500 revs and then the revcounter flies to 3,000 before dropping back to 2,500 and behaving itself!! It's great when you are trying to get onto a dual carriageway without being killed........

I've had no end of issues in terms of suspension, tyre wear and now flywheel which make me think that the 2.0l was withdrawn as the engine is just too torquey for the chassis design.

Glad to hear your views.

[Dazzler]

Sorry to hear of your issues Kevin  Haven't heard of any Flywheel issues in the 1.6 Diesel ..

I think one of the reasons they discontinued the 2.0 Diesel was it used a belt instead of a chain to drive the cam. (an older design)

The 1.6 Diesel has had some tyre wear issues (particularly the fronts)

[Doggie 1]

Welcome to the forum.

[Keith]

I'm seeing owners of diesel cars from all makers complaining about DMF's.

[celtickevin70]

Dazzler

Thanks for the info re the belt.

Do the front tyres wear on the inside shoulders? Mine seem to no matter how frequently I get the tracking sorted, they've chewed up two sets of Eagle F1s which are expensive but necessary to compensate for the "challenging" handling......

Cheers

[celtickevin70]

Ffoxy

It's definitely something I'll be looking at when I change the i-30 in the next couple of months. She's still in her 5 year warranty but everything is now being put down to wear & tear by the dealership so there seems little point in persevering any more.

Cheers

[Keith]

"challenging" handling......

 

Must have a Friday car... mine is ike its on rails at 33,000 miles and 4 years old, my i30 is a 1.6 petrol mind...

I got out of a Fiat 1.9 MJet diesel for a few diesel ralated issues.
Front tyre wear, a tendency to oversteer in the wet especially, EGR, DMF risk, turbo risk.

Mind you it was on 73,000 miles...

I'm wondering if converted petrol drivers are not aware of what converting to diesel might mean.

[celtickevin70]

I've only ever had diesels but I think that I may be switching!

It must have been a fun-packed Friday in Korea when my car was put together.

I'm wondering if converted petrol drivers are not aware of what converting to diesel might mean.

That's an interesting comment, what do you mean?

[Dazzler]

Do the front tyres wear on the inside shoulders? Mine seem to no matter how frequently I get the tracking sorted, they've chewed up two sets of Eagle F1s which are expensive but necessary to compensate for the "challenging" handling......

Cheers

We had a 1.6 CRDi and did 68,000 Kilometres in 28 months (got 55K out of the first set - probably could have squeezed a little more) without any issues but I think it has been the insides that wear .. will have to wait wait until one of our members with this issue spots the thread..

The alignment and/or camber can apparently be adjusted to offset this wear but not sure of the exact details..

Basically a good tyre place should be able to see how the tyres are wearing and make the necessary adjustments but a lot dont...  

[AlanHo]

Because a diesel has a very high compression ratio - it does not rotate at an absolutely constant speed but slows at the top of each compression stroke then speed up as it fires. This rotary oscillation is absorbed in the springs or rubber buffers built into the dual mass flywheel before it gets to the clutch.

I am under the impression that failure of the dual mass flywheel manifests itself with a loud harsh engine rattle and heavy vibration under certain engine load conditions.  I cannot see how this would cause your engine speed to suddenly increase or decrease - a dodgy clutch would.

[celtickevin70]

AlanHo

Thanks for that, I'm not an expert so can only go on what Hyundai tell me and replace. The clutch and flywheel were replaced just over 12 months ago with the flywheel being replaced again 3-4 months ago when the same revcounter flying issue recurred.

Sandon Road motors are going to look at it next Tuesday so we'll see what happens after the ride along.

Thanks again

[Keith]

I'm wondering if converted petrol drivers are not aware of what converting to diesel might mean.

That's an interesting comment, what do you mean?

Diesels drive differently as their torque / BHP profile is different. Drive a diesel as you would a petrol and the diesel benefits shrink dramatically. Add to that an increase in sprung weight and, in the case of the Fiat I owned with a heavy iron block... it was VERY easy to make the front wash out, especially in the wet due to the car being nose heavy. Petrol version drivers never had such issues.

..... Problem happens, especially in 5th gear, car accelerates steadily until it reaches 2,500 revs and then the revcounter flies to 3,000 before dropping back to 2,500 and behaving itself!! .....

This is the most obvious sing one can get for dead clutch! Absolutely nothing to do with the dual mass flywheel and if your service did replace it i would be seriously worried about their expertise.

I am under the impression that failure of the dual mass flywheel manifests itself with a loud harsh engine rattle and heavy vibration under certain engine load conditions.  I cannot see how this would cause your engine speed to suddenly increase or decrease - a dodgy clutch would.

Bingo. This is it.

@celtickevin70
My opinion is that your Hyundai service is either very bad one or ashamed to admit that clutch is absolutely known weak point in any Hyundai high hp diesel!!
This is why clutch replacement cost 300euro tops....get price for other car makers and be sure to be sited when getting that info

If you google every other compact like opel astra, ford focus, golf etc you'll see all of them about 340Nm of torque for 140hp, hyundai 2.0crdi 304Nm...you get the picture.
fire away if i can help you further

Didn't we determine some time back that the 1.6 CRDi didn't have a DMF? Maybe I imagined that and we decided that it did.

[Phil №❶]

Didn't we determine some time back that the 1.6 CRDi didn't have a DMF? Maybe I imagined that and we decided that it did.

Original post is a 2.0 Litre Diesel

[Dazzler]

Didn't we determine some time back that the 1.6 CRDi didn't have a DMF? Maybe I imagined that and we decided that it did.

I thought we decided it did but that it had been trouble free  But I could be mistaken too 

Only 2.0l diesel has DMF.  And author of topic said he has 2.0l CRDi.

[AlanHo]

Only 2.0l diesel has DMF.  And author of topic said he has 2.0l CRDi.

The "D" in CRDi means "Diesel" as in Common Rail Diesel Injection.

Only 2.0l diesel has DMF.  And author of topic said he has 2.0l CRDi.

The "D" in CRDi means "Diesel" as in Common Rail Diesel Injection.

I'm not sure what you are saying here Alan but I'm taking the last few responses to mean that the (old) 2.0 litre diesel had a DMF but none of the 1.6's do. From what I have read, that's a good thing.

Apologies for side-tracking the discussion re 2.0 litre diesel.

[AlanHo]

The Hyundai 1.6 diesel fitted to the i30 has always had a DMF.

Only 2.0l diesel has DMF.  And author of topic said he has 2.0l CRDi.

The "D" in CRDi means "Diesel" as in Common Rail Diesel Injection.

Wtf are you talking about? Every kid knows that and its what i said. 2.0l diesel, 2.0l CRDi, the same thing.

From where do you get info that 1.6 crdi also has dmf?

[Surferdude]

The Hyundai 1.6 diesel fitted to the i30 has always had a DMF.

Not being a diesel owner I could be wrong, but I thought we'd established the Oz versions (original model) didn't have a DPF.

Do you even bother to read what is writen? 

First 1.6 story, and now DPF. Its DMF, not DPF. We talk here about flywheels not particle filters

[Shambles]

This bloody thread is all over the place

[Phil №❶]

This bloody thread is all over the place

It's turned into a Shambles 

[AlanHo]

Only 2.0l diesel has DMF.  And author of topic said he has 2.0l CRDi.

The "D" in CRDi means "Diesel" as in Common Rail Diesel Injection.

From where do you get info that 1.6 crdi also has dmf?

As I reported in a thread several months ago - I asked the Hyundai UK i30 product manager whether the new diesel car would have a DMF.

She confirmed that like the previous diesel model (2007 onwards) it would be fitted with a DMF. She also mentioned that the DMF had a good reliability record.

[Surferdude]

Do you even bother to read what is writen? 

First 1.6 story, and now DPF. Its DMF, not DPF. We talk here about flywheels not particle filters

Far too many abbreviations IMO.
That's why I prefaced my comment with a not being a diesel owner. hence the question. It's called seeking clarification.

[Doggie 1]

I'm completely AAL, TBH.
IMHO we need a list of abbr's to make it easier for us all to understand what the heck is happening as I'm T.C. and I'm pos I'm not the only 1.

Funny, same source, main hyundai dealership said 1.6 crdi doesnt have significant torque and vibrations to need DMF thats why they are fitted with cheaper SMF while 2.0CRDi comes with DMF which in theory last as long as car itself.