Rear headrests control

[Golden Luck]

Hello,

I need help to determine whether the vacuum leak would cause the rear headrests not to retract when activate the switch. The central locking system is still functioning.

I have had problem with the air flow control, and the air is blowing mostly to the defrost vent.

Any advice? Thanks in advance.

[jylee]

You have a leak, I suggest to begin all the vacuum check valves around the brake master booster.

jack