My 2007 tdv8 has done this twice now. Driving along at about 50 and all of a sudden there's about an inch of wobble in both directions. It does it for a few seconds then goes back to normal.

A quick Google shows the valve for the steering as a likely culprit - am I on the right lines? I've just sat on the motorway for half an hour and it's perfectly smooth then all of a sudden a wobble then gone. It last did it a couple of weeks ago.

All tyres / discs / calipers fine.
Edited to add; when it does it, the steering is "steppy" or notchy - then it goes away.

Last edited by jke11y on 15th Apr 2015 11:33am. Edited 1 time in total

Check bushes first , drop links track rods that sort of thing before looking at the expensive answer . 2008 MY Supercharged
Rimini Red / Jet
four zone climate
remote park heater
and no ugly kid windows.
magnus satis quod turpis satis

I checked all those and replaced a lower arm very recently. The feeling of this is very immediate on and off and feels hydraulicy through the wheel. What level should the pas fluid be at?

I had random steering wheel wobble usually going 50-70. Just had my pads done and the mech said one of the calipers was struck. ,!! Not done it since

i seem to have this issue also around 50-70 there seems to be a vibration or lumpiness i thought maybe a wheel balance issue, but im replacing rear discs and pads this week, but pulling away and under load its perfect just at motorway cruising speeds it noticeable

mine turned out to be 5mm spacers cast and not turned so all over the place on each wheel....drives lovely now, the love is back

"5mm spacers cast and not turned"

where, what, how ? Is this on the brakes? .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

5mm wheel spacers...not hub cantric.... very cheap cast items.....they served no purpose what so ever, took all 4 off and she drives lovely now

A tired Power steering pump would probably do it, or if the belt is slipping.

Just to round this off, as another poster mentioned I had a sticking caliper. Changed it and no more issues.