406oc.co.uk

dirtydirtydiesel wrote: ↑Thu Mar 11, 2021 9:29 pm Yes your bottom ball joint can cause vibrations through breaking
So can the lower arm bushings, the rear ones ware quite quickly.

How old is the car / millage & have the above components ever been changed ?

Some brake disc's & pads combos require very specific bedding in procedure
Failing to do this can cause the surface of the disc / pad to become less than perfect
which can cause the vibration a certain speeds.

What brand of disc & pad did you buy?

MarkD wrote: ↑Sat Mar 20, 2021 9:57 am I had it for a few days, then one morning came out to find one of the front coil springs in two pieces.

NinoB wrote: ↑Wed Mar 31, 2021 12:45 am Which one is front coil springs where does it locate pls with pictures if possible

steve_earwig wrote: ↑Wed Mar 31, 2021 8:06 am

NinoB wrote: ↑Wed Mar 31, 2021 12:45 am Which one is front coil springs where does it locate pls with pictures if possible

He means the suspension spring, they have a habit of breaking (all cars, not just 406's)

I think you've changed pretty much everything! I'm still not sure how you know it's the left-hand side though, the best I could ever do is say it's the front or back, probably.

Wul wrote: ↑Thu Apr 01, 2021 1:35 pm Since you have replaced pretty much everything, I would like to focus on the tire. What tire make, model, and size do you use? How much air pressure is in all tires?

NinoB wrote: ↑Thu Apr 01, 2021 3:16 pm Riken... 16R, 205 60, 34psi

Wul wrote: ↑Thu Apr 01, 2021 4:32 pm

NinoB wrote: ↑Thu Apr 01, 2021 3:16 pm Riken... 16R, 205 60, 34psi

It seems pretty normal... the reason I ask about tires is because I'm thinking that probably overly soft sidewall makes the tire unstable during braking. Or over inflated tires makes it bouncing around during braking because of reduced contact patch.

NinoB wrote: ↑Wed Mar 31, 2021 12:44 am

dirtydirtydiesel wrote: ↑Thu Mar 11, 2021 9:29 pm Yes your bottom ball joint can cause vibrations through breaking
So can the lower arm bushings, the rear ones ware quite quickly.
How old is the car / millage & have the above components ever been changed ?

Some brake disc's & pads combos require very specific bedding in procedure
Failing to do this can cause the surface of the disc / pad to become less than perfect
which can cause the vibration a certain speeds.

What brand of disc & pad did you buy?

New original oem ball joint, disc, tie rods, lower arm, pad, even caliper and the rubber that supplied brake fluid to the caliper (in fact i change disc 3 times which initially it will start without vibrations on breaking bit after a week it will start vibrating on breaking) .. All these i changed on both side, change the back dics and drum on both side.. Still the vibration continues on breaking around 70kmph, and it vibrates on the steering only and on front left side.. But any speed above 90kmph the breaking does not vibrates bit as it reaches 70km it will starts vibrating.. Am tired after all spending.. In fact i got a complete left hand side suspension which includes shocks, ball joint, dics, caliper, rotor, hub from someone then i tried still no changes.. Omg..
What do you mean by bedding procedure and how?