This might be related to my gearbox problem that i have posted up in another thread called 'gearbox problem. big problem. help' or something like that. Ill see what you think.

Basically coming home from college yesterday i noticed the steering was a bit tough (i have power steering and the pump and belts are fine) anyway, when you turn and let go of the steering wheel, instead of smoothly going back to centre, it snaps back (i will put a couple of vids up so u can see what i mean) and then while driving i heard a click, and it was fine, then 5mins later went tough again. It keeps coming and going. When stationary, its fine to turn, seems only to be when going along.

Then, i tested it again later on, and while i was coming out of my road, i turned and had a bit of power, and the car started juddering. It does it at every bend.. even more on tighter ones, and roundabouts. The car kinda kangaroo jumps if you know what i mean, like when learners sometimes set off, the car bounces all over the place lol, except its not violent like learners, its like its skipping a tooth or something if you know what i mean.

But it only happens when there is power going to the wheels around a bend.

So, i was thinking it could be the diff thats causing the problem as my gearbox is kinda fooked, if it is that, then ill see if it gets sorted when i get the gearbox next week sometime.

Any other thoughts?

Here is a couple of vids of the wheel snapping back into place. You will see it a couple of times in each vid. Not the best of vids, but you can kinda see what i mean.

Ill try get a vid of the road wheels juddering while pushing the car or something.

Please mind the squeeky chair noise

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that diff has collapsed m8 sounds liek the diff bearings are shot and the diff is moving around in the box jack it up and check for any play in the diff and the cv joints

by any chance have you swapped your suspension around attal? no it may sound odd but when i had my mot it faild on a front shock and the garage fitted a standerd shock on the front, so it had 1 gmax shock on the right and one ford shock on the left. After i got the car back i had this problem and thought it was the tracking but it still did it after getting the tracking checked. it was constantly trying to pull the car the oppisit way to what i was steering(makeing the steering very heavey).... turned out that the ford shock was slightly longer than the gmax one and it was putting strain on the steering and anti roll bar and makeing the wheels face into eachother so changed them both to ford shocks on the front and its been purfect cince

it does look like you tracking is miles out due to when you were tunring a left bend the steeringwheel still looked like it was faceing abit to the right

could be compleatly shot lower arms causeing this too

i would have thought if it was a diff problem you would have serious trouble keeping it in a strate line when accelerateing......

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Audi A4 Cabriolet 2.5TDI 163 Sport
Full Interior Lighting Pack - Puddle Lights, Footwell Lights, Door Markers, Handle Ambient Lights, Air Vent Illumination, Armrest Illumination, Roof Ambient Lights. Auto Dim Rear View Mirror, Cruise Control, Full DIS, Genuine 6 Disc CD Changer in Glovebox, RNSE, Remote Windows, Parrot Bluetooth, Storage Pack, Full Leather, Heated Mirrors

nah ive not swapped suspension.

and yea the wheel does face to the right a bit, im going to get tracking done when i get the new gearbox on and its back on the road.

ill check it all tomorrow probs, see if its either the UJ or lower arms or something else.

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I think i may have found the steering problem...

I havent had alot of free time to jack the car up and take a closer look to see what it is, but can anyone tell me what it is, what it does and if its easy to replace.

Its the little tube type thing thats hanging down and resting on the cat.

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i have no idea, i would look at mine but it too dark atm, ill look in the morning for you

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Audi A4 Cabriolet 2.5TDI 163 Sport
Full Interior Lighting Pack - Puddle Lights, Footwell Lights, Door Markers, Handle Ambient Lights, Air Vent Illumination, Armrest Illumination, Roof Ambient Lights. Auto Dim Rear View Mirror, Cruise Control, Full DIS, Genuine 6 Disc CD Changer in Glovebox, RNSE, Remote Windows, Parrot Bluetooth, Storage Pack, Full Leather, Heated Mirrors