Lady Python wrote: Fri Nov 26, 2021 12:00 am
Thanks Gazza. I'll have a look at these.
Something's bothering me though. I used to dabble with cars in my teenage years so did learn a bit about them.
I don't go far in the car, usually as far as the local supermarket, about a 2 mile round trip and twice a month an 8 mile round trip to my music teacher and back. The trip to my music teacher didn't happen for several weeks as he had a bit of a breakdown.
For about a month, every time I go over a bump in the road I hear quite a loud bang coming from the back. I also notice she's slightly down on the driver's side which would suggest a worn shock absorber or soft spring to me.
Many years ago I had a Subaru. I lived in Aberdeen at the time and had gone on a trip to Edinburgh. Coming through Dundee there was an almighty bang-bang-bang. Bearings in the rear axle had gone. I managed to limp back to Aberdeen but boy, was that a hairy experience!
I have had cars for the past 40 years and I've never heard of a back axle actually going like this.
This is what it says on the MOT failure note:
Suspension arm pin or bush excessively worn Offside Rear (radius) [5.3.4(a)(i)]
Right now I am not convinced I need an entire new axle.
206s don't have springs so you can rule that out. They use torsion bars which are very unlikely to fail. But there is plenty back there than can wear and does.
The picture IanL posted shows the trailing arm and that is attached via some large bushes which wear out. Nos 4 & 6. It might be worth asking your mechanic to look at these.
The rear end went on my daughter's CC and the camber (vertical angle) on the rear wheels had visibly changed (they tucked in a lot at the top). It was also very "clonky". Eventually it got to the point that the o/s tyre rubbed through the inner wheel arch and a large chunk fell out! You might find looking from the rear shows if one wheel is more cambered that the other. Feeling for the gap between tyre and inner wings may also show up a difference. That would be the sign the bearings had failed.
If your mechanic gets the car up on a lift, leaving the suspension & wheels to dangle, it should be easier to determine where the wear is.
Like you we wanted to avoid a new rear axle but in the end it was too badly worn and rusty to consider a quick fix. The car used to live in Dundee and was pretty "orange" underneath when we got it. That didn't help the bushes and bearings which are not re-greasable. Plus there are two large body shell reinforcing bars running under the rear and they are usually a PITA to remove without resorting to violence!
I do love the heading on that parts diagram as well .. "Leaf Springs Rear"???? ...

Family Fleet: ex-Cayman Green 206 CC 2.0 LE, Indigo Blue 206 1.4 HDi Hatchback, Subaru BRZ Auto, Alfa Romeo MiTo