I am wondering if my DMF is starting to give signs.

For example when stopped, if you increase the revs just slightly above tick over to say 1100 rpm - there is a distinct vibration and growling noise.

Also on the over run on a closed throttle there is a growling noise.

Are these symptoms of a defective DMF?

One early sign of a failing DMF is the thud thud thud through the drivetrain if you try to make the car to pull strongly from low revs. Do not do this test too often though, as well as highlighting a failing DMF it will, if done frequently, cause damage to the DMF.

One early sign of a failing DMF is the thud thud thud through the drivetrain if you try to make the car to pull strongly from low revs. Do not do this test too often though, as well as highlighting a failing DMF it will, if done frequently, cause damage to the DMF.

Thanks I will give it a try

Should have said - although you have probably worked this out.

Trying to get the car to pull from low revs should be done in a higher gear than you would normaly use.

What you are trying to do is subject the DMF to all the low down torque the 1.9 PD can deliver.

Good luck

Also a way to maximise the mpg as I've found. You win some and you lose some.

Sorry to hijack but does the petrol fl have this dmf fitted as well or just the diesel ? Thanks.

No pretty sure the petrol does not have a DMF. They are a problem on modern diesels - unless they have been designed properly. For example BMW do not have problems with their DMF. However companies at the lower price end of the market have obviously cut corners - ie Ford, VW, Skoda etc - do.

They were introduced as a another measure to smooth out the roughness of diesels.

Im not sure if mine does have a problem. I have no thudding noises, only a slight vibration and growling noise.

The DMF on my 2.0 Tdi DSG is showing signs of wear. It only manifests itself by being rattly (bit like a growl) at idle....but only when in Neutral and only when the engine is cold. It's been doing this for quite a while and has not got noticeably worse in the last 10,000 miles.

There is no vibration whatsoever and no knocking when accelerating from low revs in a high gear.

However the DSG, with it's twin clutch and throttle blipping rev matching antics is more friendly to the DMF compared to a manual transmission. So I imagine the mode of failure is slightly different on the DSG compared to a manual transmission.

The DMF on my 2.0 Tdi DSG is showing signs of wear. It only manifests itself by being rattly (bit like a growl) at idle....but only when in Neutral and only when the engine is cold. It's been doing this for quite a while and has not got noticeably worse in the last 10,000 miles.

There is no vibration whatsoever and no knocking when accelerating from low revs in a high gear.

However the DSG, with it's twin clutch and throttle blipping rev matching antics is more friendly to the DMF compared to a manual transmission. So I imagine the mode of failure is slightly different on the DSG compared to a manual transmission.

Thanks - this sounds like mine. I get the growly noise in neutral, which increases as I raise the revs just above tickover.

When mine packed up, I got a very noticeable shuddering when driving up a hill in a high gear with the engine rpm at about 1800-2000rpm. This is around the peak torque of the PD140 engine (which is what my car had) which puts the DMF under the highest stress and is recommended to stay away from these conditions where possible.

I also had a very gentle 'clonk, clonk, clonk' at idle.

Maybe the higher number of auto diesels is why there is the perception of better reliability from the high end marques. Auto dervs lack a DMF thanks to the torque converter. A high proportion of diesels sold by Ford, VW, Skoda etc are manuals and therefore have a DMF.

Sorry to hijack but does the petrol fl have this dmf fitted as well or just the diesel ? Thanks.

yes it does mate, previous owner of my car has killed it yet Skoda failed to replace it, so i am sticking a new clutch and single mass flywheel in... with this

http://www.loba-motorsport.com/shop/audi/a3/8p1-2.0-tdi/190/loba-sachs-stage-2-upgrade-clutch-kit-2.0-tfsi-/-tdi?c=120

From GNJ Motorsport.

This help?

http://www.briskoda.net/forums/topic/160805-dual-mass-flywheels-dmf/

Auto dervs lack a DMF thanks to the torque converter.

Unless you have a DSG....in which case dodgy DMF comes as standard.

Mine was like an uneven load in a washing machine on tickover. 1st,2nd & reverse used to judder like crazy with lots of thudding noises. If I tried to pull away in 2nd at very low speed it would sound like it was breaking up. Skoda mechanic drove it less than 100 yds and diagnosed it straight away.

Grizzle- is that on both the manual and auto? I have the manual petrol and did think I didn't have that piece of crap fitted. Thanks.

This help?

http://www.briskoda....-flywheels-dmf/

Excellent information. Do they go around 90k?

In which case I think I will put mine up for sale in the spring. I'm afraid in the six months I have owned my Octavia, I am not impressed. Its a nice car, but poorly engineered - they obviously sell them cheap and then make money on the spares market. If you can afford a new one, then fine, but as a used model they are too expensive to keep running.

Grizzle- is that on both the manual and auto? I have the manual petrol and did think I didn't have that piece of crap fitted. Thanks.

I think but dont quote me on it that the manual and DSG has a dual mass flywheel.

In which case I think I will put mine up for sale in the spring. I'm afraid in the six months I have owned my Octavia, I am not impressed. Its a nice car, but poorly engineered - they obviously sell them cheap and then make money on the spares market. If you can afford a new one, then fine, but as a used model they are too expensive to keep running.

I've followed your posts with interest Phil, right from before you bought the Octavia.

I can only assume you've ended up with a bad one, very unlucky, and I can understand why this would put you off the Octavia for life.

Still, based on my experience I'd choose another VAG car over similarly priced alternatives such as Vauxhall, Ford, PSA, Renault etc.

Should an extended warranty cover a DMF failure?

Probably not.

For a car with less than 55k miles and had less than a year I won't be happy if I have to fork out to get it fixed.

Also, if I had an issue with the DMF would it pass an MOT?

For a car with less than 55k miles and had less than a year I won't be happy if I have to fork out to get it fixed.

Me neither, but with a private purchase mileage or age post purchase is irrelevant - sold as seen.

Even through a non-franchised dealer you'll be lucky to get more than a 3 month warranty.

Even through a franchised Skoda dealer you might have to fight like hell as they have pre-determined levels of wear before they'll consider replacing it.

This is why doing your homework is so invaluable when researching a used car purchase, and Briskoda makes this so much easier

Bought from a skoda dealer with fsh. So couldn't really complain...

In which case I think I will put mine up for sale in the spring. I'm afraid in the six months I have owned my Octavia, I am not impressed. Its a nice car, but poorly engineered - they obviously sell them cheap and then make money on the spares market. If you can afford a new one, then fine, but as a used model they are too expensive to keep running.

That is a pity. I'm sure we have all had an experience like yours with a used car at some time in our motoring past (I certainly have). I too have had to bail out of a car because of mounting pending repair bills and know exactly what it's like to completely loose confidence in a car.

Some may say that your experience is par for the course when running an 8 year old car, but I think you have been quite unlucky. There are four Skoda's in my wider family, none of which have even come close to being as troublesome as yours has.