hi all,

My 2015 Octavia Scout has started vibrating at higher speeds. The vibration is constant at about 70 mph, but only seems to occur when the car is heavily loaded. By heavily loaded, i mean a boot full of suitcases, two kids in the back, two adults in the front. The vibration can be felt through the footwell and feels like the whole car is shaking.

The other thing that is occurring is that the car is juddering sometimes after engaging the gear when releasing the clutch to accelerate from stationary or slow speeds - it feels like there isn't enough power to get the car moving. Again, this only seems to be happening when the car is heavily loaded. When i drove to work this morning with only me in the car, there was no vibration or juddering.

Last week the car had a tyre puncture repaired, so i initially thought the vibration was due to the wheel being unbalanced, but now i know its only happening under heavy load it seems something else is causing it.

Any suggestions? Many thanks

?

When was the propshaft coupling inspected properly? 

If the original it could be in quite a state by now.

@Rooted, i have no idea. But i have booked it into the local independent garage in a couple of weeks to investigate the issue, so i will ask them to check it.

I wondered if it was an issue with the clutch, or Dual mass fly wheel? Our C-max had something a bit similar that turned out was a knackered DMF.

A couple of weeks is too long, unless you are not going anyplace.

 

Even use a Tyre and Exhaust place to get it on a ramp, and maybe they will let you look while you tell them you think it might be an exhaust noise you are getting.

 

Or get the wheels on a kerb and get under and have a look see. 

 

??

When was the Haldex last serviced, OIl & Filter cleaned?

 

 

Edited 15 November, 20232 yr by Rooted

 

2 hours ago, Rooted said:

A couple of weeks is too long, unless you are not going anyplace.

 

Even use a Tyre and Exhaust place to get it on a ramp, and maybe they will let you look while you tell them you think it might be an exhaust noise you are getting.

 

Or get the wheels on a kerb and get under and have a look see. 

 

??

When was the Haldex last serviced, OIl & Filter cleaned?

 

 

 

Right-o, in that case I'll pop into my local garage this week and see if they'll jack it up to have a quick look.

Haldex oil and filter was last done in Jan 2020, just after i bought the car. I've done about 20K miles since then.

The Guidelines / Recommendations or even schedule is 3 years / 30,000 miles or sooner.

See other threads on that even ones this week.  That can be too long.

I'd guess rear propshaft coupling as well based on my experience with a Mk2 4x4 which was similar - what's the mileage on the car

The coupling shown in the photograph is in fact in perfect condition despite what you would think to be severe cracking.

3 hours ago, skomaz said:

I'd guess rear propshaft coupling as well based on my experience with a Mk2 4x4 which was similar - what's the mileage on the car

Its done 113K miles.

I started to notice mine about 70k miles but it wasn't bad until about 90k.  Fine under normal driving but bad when loaded or on the motorway in top at about 2300 rpm. 

@J.R.That was well observed.  But then nobody said there was anything wrong with it. 

The coupling shown in the picture is to show what a coupling is and from another members thread.

They might or might not have replaced it or fought it to remove and replace.  

 

http://briskoda.net/forums/topic/501865-rear-drive-shaft-coupling

http://briskoda.net/forums/topic/484984-yeti-4x4-yeti-4x4-rear-noise-driving-me-daft

 

Edited 16 November, 20232 yr by Rooted

3 hours ago, Rooted said:

That was well observed.  But then nobody said there was anything wrong with it. 

 

I know you didn't say it, it was as a warning to others because I have a new and unused coupling with identical fissures bought in error thinking mine was failing, it was a very good image and I am unable to post photos to the forum.

Car is back from my local garage and they couldn't find anything wrong with it. The mechanic said the prop shaft coupler looks fine, and i had a look too and it does look ok (photo attached). There are some tears but otherwise looks fine.

It's booked in for a haldex service in Jan. Hopefully that will resolve it.

For the past two weeks the car has been driving fine with no juddering or issues moving from stationary.