Knocking in dash
- Thread starter John rich
- Start date
I think I remember vaguely the thread you read and the bar is not under the bonnet but under the dash and is secured by a bolt that has to be accessed under the bonnet. It's more a strip of metal and you can see it in the picture, courtesy of Sarge, the shiny strip extending to the bottom of the windscreen in line with the steering wheel. The strip is secured by a bolt at the windscreen end and was loose and the strip vibrated making an annoying tapping noise.
I cannot recall anyone else reporting this problem so it is extremely rare and I would concentrate on more common causes.
I have given up trying to pinpoint noises, they always end up never where I thought!
Andy
Didgesteve
Member
I had something like this, an annoying rattle, from somewhere in the middle of the dash. I had pulled out the air vent/cup holders/stereo looking for it.
Mentioned it to the mechanic when I took the car in for it’s MOT.
Turns out that it wasn’t under the dash at all. There are two rectangular guides that the bonnet slides into before you lock it in place, at the top, near the windscreen. They come lose and rattle as they get older as they aren’t very well fastened. Because they both rattle, it sounds like the noise comes from the middle of the dash.
Some double sided tape underneath them and the sound was gone.
Gary from B & F Autos is the master of all things A2
Mentioned it to the mechanic when I took the car in for it’s MOT.
Turns out that it wasn’t under the dash at all. There are two rectangular guides that the bonnet slides into before you lock it in place, at the top, near the windscreen. They come lose and rattle as they get older as they aren’t very well fastened. Because they both rattle, it sounds like the noise comes from the middle of the dash.
Some double sided tape underneath them and the sound was gone.
Gary from B & F Autos is the master of all things A2
That sounds very likely the culprit, rubber nipple???? Don't think about it get a quality refurbished wiper from Paul(@depronman).
Andy
John rich
Member
Found the problem ,the wiper arm is banging on the windscreen,, a slight mod to the wiper blade attachment lifting the arm away from the screen, thankyou all for your help
depronman
A2OC Donor
The rubber nipple is there to try to protect the screen in case the wiper arm is dropped on to the screen when say changing the wiper blade etc. It does nothing in normal use and most wiper arm have long ago lost the rubber nipple
I can do you a refurbished wiper arm which will stop the problem once and for all
PM me if interested
Cheers. Paul
Sent from my iPhone using Tapatalk
audifan
A2OC Donor
The wind screen wiper problem is normally wear in the pins and springs that allow the arms to flex but still pressed against the screen. As these wear the arm droops and the base of the springs end up touching the screen either constantly or when the arm is vibrated during driving or operation. This is heard as a tapping noise. If allowed to continue there is a good chance the screen will be scratched or even worse cracked by these piont that are contacting the screen. Another thing that can cause the arm to contact the screen is automatic car washes as they can flatten the arm against the screen as the roller brush hits them.
