Hi, i recently loaded the BOOTLOADER. Since then, the MFSW doesn't function and the reversing park aid is no longer visible. How do i re-instate these. If anyone can help

My advice would be to get a diagnostic check as I wouldn't have thought the boot loader would affect either function. The fact it has is very odd. 

But with any electrical issues I would look at the battery first. If the battery is failing bit can through up all sorts of electrical gremlins. 

Looking online there seems to be a lot of people with similar problems without a definite fix. My advice would be to change the steering wheel control buttons with a second hand init to see if that fixes the issue. 

Other than the battery the only other way I can see them being linked is if you've got paddle shifters on the steering wheel to change gear.