Summary
Rear brakes and auto release system working perfectly.
I think as mentioned by someone previously, I may have lightly touched the accelerator without realising releasing it.
On the up side I have finally got my VIDA system to work and connect with the car
Next jobs:
remove DPF,clean & Replace
Change autobox oil
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Current Volvo:
XC90 D5 2014 120K miles. Running lovely on clean green Biodiesel
Previous volvo:
V70 D5 2009 - T5 convertible - V40 1.8 - 343GL - the one with the elastic band transmission!