I wonder if any Octy owners have experienced what I have now on my Seat.

I have a vibration somewhere at the front end of my 2.0 TDi DSG Altea. It happens when I accelerate fairly hard and its almost like an increasing wheel wobble (not from the wheels though), but it isn't speed dependant, ie you can acclerate to say 70 and it happens, but once you stay at constant 70, it all stabilises.

It seems only to do this under load, ie it doesn't replicate the same vibration revved up in neutral.

I've just had the front lower bushes in the suspension replaced, as they were badly worn, but that hasn't improved the vibration at all.

I had thought it might be a flywheel issue, but just looked on VOSA - Vehicle Recalls

and nothing appears for the DSG equipped cars, only the manuals.

I first noticed this on a run a few weeks back when acclerating from 60 to 70 with a fair load on board, but in the last couple of weeks it is noticeable around town when accelerating as well.

Anyone had similar, or got any ideas? Car has done around 50k miles by the way.

Flywheel on it's way out?

As it stands at the moment, that's my best guess. I've not heard of any issues with single mass flywheels, but the dmfs should have been recalled, even though I've never had any notification. I will contact the dealer who serviced it ,whilst in warranty, tomorrow and see if I can make any sense of it.

Surely if it should have been recalled, Seat should pay for the work?

Well I phoned Seat and they confirmed categorically that no recalls have or should have been issued for my car.

I checked with the dealer who serviced my car as well and they said there were no alerts for my car or any of its matching type. I did think it funny though when I mentioned to the person at the service desk dual mass flywheels and they looked at me as though I was an alien! lol

I popped the car up in the air this afternoon just to see if I could spot anything and I might be onto something. Nearside inner CV joint looks to be inducing strange movement into the driveshaft, of a slightly eccentric motion when in gear.

Offside doesn't do the same and rotates true and even. I also had a leaky inner boot on the shaft a while back which was repaired, so I'm wondering if dirt had got in and caused premature demise of the inner joint.

I'll be getting my reliable independant chap to have a look for me this week.

Flywheel , Loose Mount , Cat stuck between the under carraige

If it was a rearwheel drive that it was happening to, i would have suggested this :P

A woman, a car and a mattress! - BMW 3-Series (E90 E92) Forum - E90Post.com

My goodness!!! What a mess. Funnily enough, the rear torque mount does seem to allow a lot of movement, could be by design, but I'll get that checked out as well.

I'll report back on the cause, you never know, it might help somebody out at a later date.

Just got my car back and its all fixed!

It was the inner CV joint. Apparently this is a 3 roller bearing design going into a journal and one of these bearings had completely collapsed.

Part wasn't cheap at £150 or so from Seat, but my car is all sorted and accelerates nice and smoothly again.

Got to this too late...as I read down I knew this was a problem I had before...it too was the nearside inner CV joint and showed up between 30 - 50 mph or under load.

Interesting to see that I wasn't the only one to suffer this. I wonder how many others out there are going to find similar.

I've just come back from an hour or so of driving in traffic and it is like driving a new car again by comparison.