Steering wheel wobble on braking

[HockeyBiffa]

I have a (new to me) 62 plate Mondeo estate. I get a wobble on the steering wheel when braking - small but noticeable at slow speeds; very noticeable at higher speeds.

The car brakes true (ie there is no drift) and the wobble is only through the steering wheel, not the brake pedal.

The car was fully serviced before I received it, and no problems were noted. I've subsequently had the car checked (during course of which a cracked track rod end was discovered and replaced), the suspension checked, and the wheels balanced, but to no avail - wobble continues.

The garage is suggesting looking at the discs, but before I hand over any more money, I wondered whether anyone might have any ideas?

Thanks

[PositronicRay]

Discs

[MTech535]

Warped front discs.

[Mr E]

Had this on the Merc. Very slight, about 6 months after new discs and pads.
Discs apparently not warped, but changed anyway and the vibration went away.

[Evercross]

MTech535 said:

Warped front discs.

There'll be someone along shortly to say that discs don't warp. They absolutely can, but there are just as many other potential causes of the wobble related to discs.

I recently binned a year-old set of front discs on my XF because they were pitted due to corrosion. The effect was pulsating through the steering. I'd heard that the OEM material wasn't great quality and it turns out it was true.

Changed them for Delphi coated ones and so far so good. Truth is discs are so cheap now that it often isn't much more expensive to change discs and pads together as a matter of routine.

[HockeyBiffa]

Thanks everyone - feeling confident about getting that garage on to it.

[Jaguar steve]

Ask the garage to diagnose it, not the PH massive.

That way if/when they say it's the disks and replace them and you still have the wobble afterwards then you can go back and have a little chat.

[ATM]

I had this on my 550i for about 4 years. I just ignored it. I had to change the rear discs due to an MOT failure. Vibration stopped.

[HiAsAKite]

I had similar symptoms on my A6, which turned out to be wheel weights on the inside of the wheel just catching the caliper on braking.. very slight, but enough to cause a major rudder when braking at speed...