Ford Fiesta knocking sound from rear right side

most common reason for knocking noise is the cv joint which are available on there own and easy to replace if your mechanically minded this will most likely be the fault but also the ball joint can also have the same effect to again easy fix just get a complete new bottom arm if the ball joint is again at fault but any garage in your area will confirm this for you foc and quote you for the work

The above post refers to knock from front . Your post title says rear right , which is it ?

Most common knock from front on that car is susp drop link arms , easy and cheap to replace .

Sorry the knocking sound comes from rear right side of car,thanks for replies so far.

Could be rear spring or s/absorber . Another cause which might seem strange , is the rear seat catches . You think it's rear susp rattle , but releasing seat from catches verifies if that is cause . Easily fixed by putting a bit of insulating tape over bar the catches mate with .

Have you had a look at this similar problem: knocking sound from rear right side

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Just had a look,sounds like it could be same thing,im taking it to garage in nxt couple of weeks il ask them to look at s/absorbers,thanks legend and driver for your help.

Check that with the catches .I got caught out with it years back with a family members car and swore blind that it was susp. noise and spent hours trying to locate it , before a mate told me of catches .Couldn't believe it , but he was right .I released rear seat and tilted forward , road tested and noise gone .Done many cars after with same noise .

Il try it 1st thing in morning,cheers