Confirmation on the windshield cowl fix.

Sacrilicious

boom boom!
:
Cosmic Blue MS3 of hawtness!
Confirmation on the MS3 windshield cowl fix.

Ok, so many of us have had this problem:

As the weather gets colder, you notice that the plastic windshield cowl that sits on top of our windshield right at the base of the windshield wipers rubs up against the windshield and creates an IRRITATING creaking noise as you drive around. Initially, I thought that this was actually coming from inside the cabin, but it REALLY didn't make any sense, because no matter what panel I pushed down on, nothing helped! After reading a post by Dread, I got the rundown on his fix for it: put electric tape along the underside of the cowl in order to stop this annoying creaking! Here's a quick lowdown on what happened when I tried to fix this thing:

I'd like to apologize in advance for not having pictures as I write this, but I promise I will take some pics and write up a more thorough how-to in the How-To section later on this week and link that thread into here. Ok, onto the good stuff:

At first, I was lazy and tried to half-ass things by only unscrewing the two screws that screw the top of the cowl down to the windshield and taking ~2" strips of electrical tape and just doing a spotty job of things and only taping portions of the cowl. This, obviously, was a stupid idea and born of laziness...it did NOT work...=/

Next, I got cute with my laziness and decided that wouldn't it be GREAT if I just stuck these handy little felt pads onto the cowl every 6" or so? Ya, you guessed it: not only was this going to make it easier for water to leak down under the cowl, but it did NOT work! (bang)

Finally, it was freakin COLD out, and as you will notice, this creak only gets worse as it gets colder (colder plastic = stiffer plastic = MORE CREAKS!!!), so I just bit the bullet and went ahead and did this up the RIGHT way. I unscrewed my windshield wipers and put them to the side. Then I took out the two screws on top of the cowl out and moved on to the engine bay. In here, you have to remove a strip of rubber insulation which holds the backside of the cowl in place inside the engine bay. After this, you have to disconnect the tube that feeds windshield wiper fluid to the cowl assembly (which includes your fluid spray nozzles). After this, you have to carefully unhook the backside of the cowl from the windshield. This is where you have to be VERY careful about things, because the plastic bracing hooks that hold the cowl against the windshield are not the toughest things in the world. I will give more cautionary details when I post the full How-To later on this week. After this, the cowl should finally be removable and completely separable from your car.

After I had the cowl in hand, I took it upstairs and carefully cleaned it off with Windex. As soon as it was good and dry, I applied electrical tape in one single strip across each half of the cowl (yes, it's actually two pieces that lock together to form a whole). I made sure to superglue the ends of the tape so that it would be less likely to come loose. I was also very careful as I applied the tape so that it was definitely flush with the edge of the cowl. Then, I repeated this process 3x more so that I had a whopping 4 layers of electrical tape to protect myself against the creak. Yes, I'm freakin paranoid at this point, because I do NOT want to repeat this process anytime soon, and I sure as HELL can't stand this creaking anymore! (bang) After I was done with the tape, I also stuck felt pads all over the underside of the cowl to make sure that there would not be any sort of unwanted vibration against the edge of the windshield after I put it back in.

When all these added layers of protection were put in, I went to put the cowl back onto my car. This is where things got sloppy and I managed to snap/bend a few of the snaps and plastic hooks that hold things in place. You have to be VERY careful when putting this back on, so be very cautious as you line the cowl up and carefully feed the plastic hooks that latch underneath the windshield into place. After you get them into position, you're going to have to carefully, but firmly push it into place and then rescrew everything back into place.

I obviously cut out some of the annoying details from the reinstallation of the cowl out due to lack of pictures, but like I said, I'll be posting a full How-To later this week with pictures and diagrams. I, personally, really really hated this creak, so even though it's going to take me a long-ass time to write up this How-To, I really think it's worth it for people who would like to do this themselves and fix things up nicely. The alternative, of course, is to simply take it back to the dealer and have them spray adhesive foam into there, but I really wanted to see this through myself, and I am happy to report that there are NO creaks coming from my cowl now. In fact, the only annoying noises I hear are coming from my rear suspension, and I believe that to be because of either loosened sway bar bushing nuts, or a simple need for grease back there. This, of course, will be my next project, and I'll tell you guys how that goes when I get it taken care of! (alright)

Please post if you have anything to add about this issue, because unless I'm a complete freak, I don't think I'm alone in my frustration with this problem. Happy tinkering, all! (drinks)
 
Last edited:
Same problem. I took it to the dealer and told them about the problem. They fixed it in about half an hour with some foam tape and something about shims...not sure exactly. It looks pretty much like stock except at a couple points the cowl is raised up a couple mm.
 
gee, you spent all this time when you could've easily fixed this in 5 mins if you've just done what I've told you to do... SEARCH
View attachment 99550

i don't think i am who you think i am, and this is for the cowl grille, not cowl panel (grille fits on top of the panel). i did not touch those bolts at all, because they were not causing the problem i was having.
 
it is the exact same noise you're talking about
I've fixed many 3s that have this rattling type sound coming from what *appears* to be coming from the bottom of the windshield
 
as far as i understood it, there was a cowl-related problem where the fix was to pad the area between the cowl and the top of the windshield. the problem you're describing is a rattling that happens in the inside of the engine bay. regardless, i did not touch those cowl panel bolts at all, and my problem is completely fixed by the padding that i put into the cowl grille. i'm not saying the problem you've fixed does not exist, but i'm pretty darn sure i have an additional problem on top of the one you have. my problem does not manifest itself until the weather starts getting cold (50F and below). since you're in dallas, i really doubt you've had to deal with this before...
 
Seems like the problem detailed in the PDF file isn't related. I have the cowl creak problem and it certainly doesn't sound like a "pop" sound coming from my front suspension. It sounds like my dashboard is loose inside the car itself.
 
Seems like the problem detailed in the PDF file isn't related. I have the cowl creak problem and it certainly doesn't sound like a "pop" sound coming from my front suspension. It sounds like my dashboard is loose inside the car itself.

+1

it definitely did not make me suspect the front suspension in the least.
 
like I said
on half the ones I've seen have this problem, it's NOT A POPPING NOISE
it is a buzzing or rattling noise that sounds like the dashboard is loose... it's a sound that's hard to localize and tightening the cowl panel bolts fixed it

it has NOTHING to do with the suspension
 
ours is not really a rattle, but more a creak. it is caused by the cold weather up here which hardens the plastic on the cowl grille and causes rubbing against the windshield. thanks for making us aware of the cowl panel bolts...i will definitely keep that in mind if i have that problem in the future, but for the problem i had to fix on my car was definitely not the same as the one you've fixed.
 
I keep putting this fix off (too damn cold!). I'll have to try it this weekend and let you know.
 
I keep putting this fix off (too damn cold!). I'll have to try it this weekend and let you know.

the removal of the cowl grille was pretty straightforward, but putting it back on was definitely the tricky part, since it requires the plastic hooks to go under the windshield to be lined up properly. be really careful when you do this, or you might bend some of the plastic snaps when you do this like i did...=/
 
You guys rock!

I was getting this noise on some recent cold days (35 degrees is cold in texas :D) and I had wondered if it is something I could have the dealer take a look at.

I also get a rattle from the rear of the car on bumpier roads, and sometimes on speed bumps, I will probably have them check that out as well. It also seems to only happen on colder days.

Either way I love this forum more and more as answers like this pop up!
 
Back