loud noise from around windscreen area at speed
2008 G320CDI
I've recently been getting a loud booming noise which comes on at a certain speed - depends on the wind speed also. It cuts in quite suddently at about 65mph. I don't think it's the rubber seals around the windscreen, the windscreen was replaced a few monrths ago as it had a big stone crack, the booming was happening before and after that. I think it's from the frame around the windscreen. Is this something others have had and what did you do to solve it. It's loud enough to act as a complete deterrent against going faster!!
Mike
Could it be something slapping of the bulkhead under the bonnet?
might be the plastic cover of the air inlets (before the windscreen); they don't age well and then rise in the middle making an unpleasant noise at speed.
In a 463 I occasionally get more of a whistle or throbbing from the top of the windscreen which I think is the rain gutter. Seems to depend on the wind direction.
The only boom comes from opening a rear window slightly and not having another open.... like if the folk in the rear open it I have to balance out the booming by opening another. Luckily I have electric.
Are you sure the booming is the right description, or maybe its something from the drive-train causing a resonation of the windscreen, as a flat panel at certain speeds.
"might be the plastic cover of the air inlets (before the windscreen); they don't age well and then rise in the middle making an unpleasant noise at speed."
I will check this thanks
"Could it be something slapping of the bulkhead under the bonnet?"
I will check this thanks
Has it got a Sunroof?
If it has, maybe not quite closing flush?
No sunroof Gav. I had one in a Porsche a long time ago which used to whistle at 110mph and open with a loud bang at 115-120mph - was really annoying!!
I this is from the "frame" around the windscreen - not the rubber seal but the frame a couple of inches out. I need to duct tape it and remove bit by bit to see where it's from. I think?
Cheers, Mike
Does the sound go of you open a window?
JOIN THE GWOA
This website and forum are provided for the benefit of enthusiasts and owners of all Mercedes Benz off road vehicles, in particular the G Wagen. The costs of development, upkeep and provision of the site are met entirely by the annual subscriptions of club members. If you are using the site and are not a member of the G Wagen Owners Association please consider joining. You will have access to areas on the site that are not open to non members, to club trips and meetings and to technical assistance. In addition your contribution (only £25 annually) will help us maintain and develop our website for future users.
Who's new
- m.heath97
- RossMcO
- WRT87A
- GuidoRapido
- fraserharris
Let's say if there's no wind it cuts in suddenly at 70mph - it's quite severe and seem to be from above the windscreen area, offside front
If there's a strong headwind it cuts in suddenly somewhere 50-60mph
If there's a strong tailwind it may not cut in at all below 80mph
I'm going to try some masking tape and see if I narrow it down that way
This only started last winter and I've owned it from new, 14 years now
I know what you mean about the boom from a single window being open, I don't think it's that
Cheers, Mike