C30 Juddering

[AshC30]

Hi all, bought a 61 plate C30 & it’s juddering/vibrating anywhere at 60mph and above worse at 70. I’ve done the obvious. New tyres, wheel balancing, even new driveshafts O/S & N/S but still no closer to curing. Any ideas or common known faults? Seems nothing but trouble so far. Thanks 👍🏼

[Clan]

Originally Posted by AshC30

Hi all, bought a 61 plate C30 & it’s juddering/vibrating anywhere at 60mph and above worse at 70. I’ve done the obvious. New tyres, wheel balancing, even new driveshafts O/S & N/S but still no closer to curing. Any ideas or common known faults? Seems nothing but trouble so far. Thanks 👍🏼

seems you have bought someone else's problem car ... no one is better equipped for diagnosing it than the dealer who has hundreds of these in each month and if they haven't seen it before they know someone who has and have all the back up from Volvo technical dept .... you have already wasted £100's without diagnosing it first .

[AshC30]

It has been back to the dealer I bought it from who said first driveshafts, then said tyres then have currently said “ we don’t know why” ... 👍🏼

[Clan]

Originally Posted by AshC30

It has been back to the dealer I bought it from who said first driveshafts, then said tyres then have currently said “ we don’t know why” ... 👍🏼

well as i said they have volvo themselves who will help , they don't sound a very helpful bunch so far ..

[FunkyMelon]

Get your wheels on a balancing machine.

I bet they're buckled. Had the same thing on mine and could clearly see it on the machine when spun up.

They gave the same symptoms, vibration through the steering wheel at about 60/70mph.

[Clan]

Originally Posted by FunkyMelon

Get your wheels on a balancing machine.

I bet they're buckled. Had the same thing on mine and could clearly see it on the machine when spun up.

They gave the same symptoms, vibration through the steering wheel at about 60/70mph.

the person balancing the wheels would see any buckle or lumpy tyre ......

[SnackBox]

Id say the alloys are buckled as well. Mine was doing that, brought it to get balanced and the tyre fitter reckoned it was the alloys. Can't remember which wheel is which now but one had to have 60g weigh stuck onto it and the other 80g. It's fine now for the most part but there's still a slight vibration above 110 kmh.

[FunkyMelon]

Originally Posted by Clan

well as i said they have volvo themselves who will help , they don't sound a very helpful bunch so far ..

Volvo would be a last resort IMO. They'll charge £100 just to look at it and if it's buckled wheels they'll quote you £600 odd per wheel (18" Medusa cost) for a new one.

Originally Posted by Clan

the person balancing the wheels would see any buckle or lumpy tyre ......

Assuming they're any good, I took mine to one place who couldn't find an issue, took it to another the next day and it was very obvious, previous people must have been blind.

[Markos01]

Think I've heard of engine mounts going which can cause vibration, maybe another thing to consider.

OP which engine? And what make driveshafts did you fit? Presume they were brand new?

[lockstock]

Originally Posted by Markos01

Think I've heard of engine mounts going which can cause vibration, maybe another thing to consider.

OP which engine? And what make driveshafts did you fit? Presume they were brand new?

i have similar problem, was engine mounts even tho they looked fine. Common failure on P1 platform. cheap to change. I also think the Dual Mass Flywheel if failing will give this problem, however you will be able to feel the vibration to some degree when revving stationary.