C63 Coupe (W204) - creaky roof

C63 Coupe (W204) - creaky roof

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8bit

Original Poster:

5,003 posts

162 months

Tuesday 7th May
quotequote all
My W204 coupe has the panoramic roof (as I think all the coupes do) and recently it's been making a faint creaking noise, which has more recently been getting louder. I think I saw something in one of the buyer's guides before I bought one that this is not unheard of but I'm not finding a great deal about it online now (or maybe my Google skills fail me).

Has anyone else with this model had this and any idea what the fix is, or likely tax at a garage (independent Merc specialist in my case) to put it right?

PDP76

2,581 posts

157 months

Tuesday 7th May
quotequote all
Like the seals creaking ?
Give them a clean and Iube them. I use a generic silicone spray. Shuts them up for a bit.

8bit

Original Poster:

5,003 posts

162 months

Wednesday 8th May
quotequote all
PDP76 said:
Like the seals creaking ?
Give them a clean and Iube them. I use a generic silicone spray. Shuts them up for a bit.
Not sure what the source is exactly. I bought the car just over a year ago and the pano roof was sorted at a local specialist courtesy of the selling dealer as it was getting stuck while the roof was opening or closing. I didn't see the invoice so can't say for sure what they did but I was led to believe it was a fairly comprehensive strip down, clean, lubrication and reassembly of the mechanisms so I'd be surprised if it had dried out in the ten or so months since then?

PDP76

2,581 posts

157 months

Thursday 9th May
quotequote all
To check if it’s the seals creaking,fully open the roof. If it stops creaking it’s your seals.
My can creak after a bit, drove me mad until I finally worked out what it was. If it’s your seals give them a good lube.

PositronicRay

27,526 posts

190 months

Thursday 9th May
quotequote all
I lube seals when I clean the car, only takes a moment. Don't overdo it just a smear, may take a couple of goes.

What have you got to lose?

8bit

Original Poster:

5,003 posts

162 months

Thursday 9th May
quotequote all
PDP76 said:
To check if it’s the seals creaking,fully open the roof. If it stops creaking it’s your seals.
My can creak after a bit, drove me mad until I finally worked out what it was. If it’s your seals give them a good lube.
Good shout, thanks - will try that if/when it ever stops bloody raining here...

PositronicRay said:
I lube seals when I clean the car, only takes a moment. Don't overdo it just a smear, may take a couple of goes.

What have you got to lose?
Nothing I suppose, what do you use to lube the seals with and which ones specifically?

gregpot2000

249 posts

151 months

Thursday 9th May
quotequote all
Gummi pledge (sp) all the way! Used for years now on every car I've had.

Cover all rubber around twice per year and will completely stop creaks. Well known as a miracle product on a lot forums!

Nextzett 91480615 Rubber Care Stick 100 ml White

https://amzn.eu/d/gvzTbjx 

PDP76

2,581 posts

157 months

Thursday 9th May
quotequote all
I just use a generic silicone spray for rubbers that I can get from work. Spray onto a microfibre cloth and wipe onto all the roof seals. Open and close it a few times.
Maybe have to do it once or twice a year.
I clean and relube the rails etc myself at least once a year with the stuff merc use to keep it moving freely.
They don’t take much dirt over winter to get a bit dirty and start interfering with smooth roof movement.

8bit

Original Poster:

5,003 posts

162 months

Monday 13th May
quotequote all
8bit said:
PDP76 said:
To check if it’s the seals creaking,fully open the roof. If it stops creaking it’s your seals.
My can creak after a bit, drove me mad until I finally worked out what it was. If it’s your seals give them a good lube.
Good shout, thanks - will try that if/when it ever stops bloody raining here...
Think you've hit the nail on the head PDP76, glorious sunshine on Saturday so had the sunroof open - no creaking. I'll try lubing up the seals this week - thanks.

PDP76

2,581 posts

157 months

Wednesday 15th May
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Sorted, and saves you some cash on a trip to the garage.

8bit

Original Poster:

5,003 posts

162 months

Wednesday 15th May
quotequote all
Not out of the woods yet unfortunately. The original sort of clicky, creaking noise is now gone after applying silicone lube to the seals, but the newer, squeaky sort of creaking persists. It almost sounds like rubbing chunks of polystyrene packaging together if you know what I mean?

I will revisit this later this week and see if there's anywhere else I can get at with the silicone lube but I suspect it's going to need my local specialist to look at it.

PositronicRay

27,526 posts

190 months

Thursday 16th May
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I've had success with multiple light applications, just a smear every week or so. Sometimes it'll quieten down with time too, as the rubber treatment works its way in with temperature and movement.,

8bit

Original Poster:

5,003 posts

162 months

Wednesday 22nd May
quotequote all
I'm convinced the noise is now getting worse, and it's now definitely happening when the sunroof is open (either tilted or fully retracted) so I don't think it's the seals. Now looking for a bodyshop/sunroof specialist to see what they say.