Hi,
After a few minute intervals, I keep hearing a hissing sound, like somebody is sucking air through a straw. It seems to be coming frm the air ducts. Is this the air con?
Is it normal?
Originally posted by amolak Hi,
After a few minute intervals, I keep hearing a hissing sound, like somebody is sucking air through a straw.
Amo
S280 1998
Or it could be the headlamp self-levelling control - this works via a vacuum as well - try adjusting it to see if the sound changes. - Has anyone been changing the headlamps etc?