Vibrating from drivers wheel under load at 50

Swap wheels over front to rear

 

So it is safe to assume that you've had a good old tug (Fnnarr) on the wheels to check for minor movement in the wheels on both horizontal and vertical axis?

If the steering components are fine and the problem seems to present itself at 50mph or above, does it only do it when booting or is it still there at light/no load?

Mick

 

I had similar on my old clio 172. Would vibrate a lot like you describe. The inner cv boot had failed and the grease had escaped and the bearings were shagged.

 

Only at around 50mph...bad tyre???

 

It's deffo coming thru the car and not the steering? Any audible "clunks" or "knocks"?

I suspect it is driveshaft related but would really need to see the car to confirm/deny. Have the wheels all been checked?

 

If it is a wheel balance issue, moving the wheels around will not resolve the issue as the imbalance is still there and will continue to travel thru the car. Have the wheels been on a balancing machine (a pretty modern one)? These can tell you if you have a flat spot and if the weight/fixing points are correct.

 

Have you done your wheel nuts up tight enough? Really stupid question but could be that simple!

 

Does your DMF make any knocking noises? These tend to cause harsh idles and knocking rather than vibration at a specific speed/load

 

Any luck with this, im suffering the extact problem.
Im thinking dmf or a gearbox bearing.

 

Megane 225 trophy, standard gearbox as far as i know 70k on the clock. Has been running a stage 1 remap for a fair few years.

 

Reading thru, was like u had been driving my car. No matter what gear, only underload around 50, vibration. I thort id do a quick search on hear n when i read thru i was hoping u had found the problem.

 

Iv only looked at the transmission side as its underload. The bit that steering me at the box, is its the same speed no matter what gear or revs.
In saying that iv ordered a smf on the off chance.

 

The only way to know for sure will be to break the box from the block and inspect it.

We've got a 250 in for inspection that has a similar issue except with an SMF fitted.

 

You normally get dmf noise on start or when turning the engine off, as this creates the most jerky movement.
You can get it when taking up the bite on the clutch too.
Do you get any of these symptoms?

 

Fly wheel will have been put on slightly on the piss, a mate of mine had this on his Leon.
You could drive through it, came at about 50 went at 65!

 

Mine doesnt suffer from any noises or jerking.

 

How bad is the vibration? Can you feel it through the clutch pedal?

 

It come thru the cabin from the front, nothing on the steering wheel or pedals. If i dip the clutch or come off the throttle it gone.
The level of vibration is equal to badly balanced wheels.

 

Will be keeping eye on this thread, I have a 225 trophy on 80k and mine does this..

Tried;
balancing the wheels
Steering arms and track rods (did have play in passengers side steering arm)

Sorry if being stupid but DMF? SMF?

 

dual mass flywheel

single mass flywheel

 

Thanks!!

 

Very strange mate.... The are not many more bits to change!

 

My smf turned up today, il let u know once fitted

 

Im tempted to wait for it to go bang. Incase its not the dmf, that way she will only have 1 trip to the garage.

 

Or it might damage my new bits, and make me cry.