Hi all the car is done. I just changed the arm and the car recalibrated itself and all is well.
the airbag was a fiddle at the base as its on an angle and the circle edge that proceeds through the lower trailing arm isn’t as proud as the original but the locator plastic nipple and the two plastic edge clips which hold it in place was ok.
im happy it’s done. I did the offside rear arm as well as it was mega stiff . It is lubed up moves freely.
pill check the fronts tmrw.
thanks all for helpful advice,
dan