Alfa Romeo 156 vibrating badly esecially above 60 mph

falabo

Hi all

Somebody might be able to help me, any advice/opinion greatly appreciated.

I recently purchased an Alfa 156. The suspensions are very vey firm as it is the TI version. The bushes have been done. The wheels were balanced.

Above 60 mph the vibrating gets quiet bad, depending on the surface of the road but the vibration is always there.

The alloys are not in great condition and I would like to get new ones.

Could this be the problem? I was told replacing bad alloys should make the car much smoother ...

Also, the tyres are low profile ... any idea ?

Thanks

Bodhan

Is the vibration in the steering wheel or can you feel it all through the car?
Does it get worse when you drive faster?
Does the car go in a straight line on its own?

Because the vibration only happens at speed it's probably the wheel balance, were the back wheels balanced too?

falabo wrote: »

Hi all

Somebody might be able to help me, any advice/opinion greatly appreciated.

I recently purchased an Alfa 156. The suspensions are very vey firm as it is the TI version. The bushes have been done. The wheels were balanced.

Above 60 mph the vibrating gets quiet bad, depending on the surface of the road but the vibration is always there.

The alloys are not in great condition and I would like to get new ones.

Could this be the problem? I was told replacing bad alloys should make the car much smoother ...

Also, the tyres are low profile ... any idea ?

Thanks

falabo

all 4 wheels been balanced.

the car tracks straight and through. it doesn't wander. the vibrations are pronounced thgrought the sterring wheel but can be felt through the entire car. the faster you go, the worst it is...

If it was the case thet the alloys are buckled could this be causing the vibrations then ?

Thanks ! ;-)

mickdw

Get your alloys checked for warping at a tyre/wheel shop.

I would have said wheel balancing but seeing as its been done, and some bushes have been done, the wheels being bent are the likely problem.

Bodhan

Just as Mick said, its most likely your wheels are warped.

As for getting new alloys, comfort in a car comes from the tyres. The lower the profile the harder the ride, also the wider the tyres the more grip but also more fuel you use. Its a choice you make when getting your wheels.

mickdw wrote: »

Get your alloys checked for warping at a tyre/wheel shop.

I would have said wheel balancing but seeing as its been done, and some bushes have been done, the wheels being bent are the likely problem.

zilog_jones

Assuming the wheels are balanced properly (you sure no weights fell off?) I'd also say warped/buckled wheels or tyres.

sundodger5

i would still say wheel balancing. it may have lost a weight as said above. or balanced "statically" (just weights in one plane) as opposed to dynamically (weights in two planes).
imagine a standard steel wheel you put weights on the inside lip and outside lip of the wheel (dynamic). some places balance alloy wheels with stick on weights just in the middle of the inside of the rim (static). sometimes it just done do the trick.
the balancer can be set up to do dynamic putting two sets of stick on weights on the inside of the wheel. one set as close to the outside of the wheel as possible the other close to the inner edge.
if the wheels are bad and very wide this may be the solution.
hope it makes sense.

RobertM

1. Tyres worn unevenly, especially the 'low profile' tyres, they look cool, but can give you enormous backache.
2. Buckled alloy
3. Crack in the alloy
4. I assume you've got 17's or 18's, I recommend getting the 16's teledials, I've got them and no problems whatsoever.

kyote00

A common enough problem on the 156 was warping of the front rotors (discs)

If the car has high mileage then assuming tracking, tyres and wheels are ok then its worth changing the discs.

Warped discs usually manifest themselves as judder/shudder through the steering wheel which gets very noticable at speed....