Convertible Top Repair








I was beyond stupid to trade this on an A238!
Last edited by TennesseeZ4; Mar 2, 2022 at 09:36 PM.
I was beyond stupid to trade this on an A238!
without being a jerk… yea you where beyond stupid. It’s ok sometimes we get the illusion that newer is better. In this case it is just not. 4 seater convertibles are just not worth the ownership. Had a CLK with soft top that always failed. Hated it so much I sold it for a huge loss but didn’t care. To put simply with MB Cabriolets “The juice is not worth the squeeze”. Now find a nice SL and enjoy top down driving the way it should be! Or if you still love the E with 2 doors just get the coupe put the windows and sunroof down and it’s pretty close to the same without the headaches.
In the meantime i did some digging and found a technical bulletin issued by Daimler in 2019 stating cars produced between 2016 & 2019 may get this fault due to possible high tensile stress on the cords during the soft top sequence.
I passed all this info onto the Mercedes branch and they said they would pass this onto Mercedes as its out of warranty for a good will gesture. Got a reply yesterday from Mercedes who basically refused to do anything and the cost is £2000 to repair the dealer has been great but I'm not happy with Mercedes.
Anybody else had this issue? either way i would advise you check the strings regularly and if you see any signs to fraying get it booked in if its still under warranty.
Technical bulletin attached








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The broken cords seem quite simple to fix, with reference to LI77.30-P-070145 (do a search to find the longer version that includes pictures, it’s been shared on other MB World posts as well as Google), a drill, a rivet gun, and vice grip locking pliers. A vacuum cleaner, held to the rivets when drilling them out, will make clean up a breeze.
You need to open to roof to a point that the cords and rivets needing work are accessible such that the roof will stay in position once you turn off car and remove key from detection range. It’s imperative to never ever place your hand or arm (or any body part) in a spot where, if the roof retracts or closes, you are vulnerable to being crushed (or worse).
Here are two videos I've found on the process from people who’ve done the repair (the short is a bloke who works at a dealer, while the other guy is an everyday car nut like you or I), very handy. Make sure you scroll beyond the thumbnails for the rest of the post.
Below is a photo of the repair kits I’ve recently purchased, including two I’ve sorted out into a sectioned container to make the install easier (as well as being a fun little OCD activity, kind of like “colour by numbers” for car nerds
). I bought six (Yep, six! Should be sorted for the life of the car if this happens again!) genuine kits on eBay that were sold as a lot for the price that one kit will have costed from Mercedes here in Australia. Paid AUD $180, shipped.If done properly, and the cords are not pulled too tight during install, the problem shouldn’t recur for some years- allowing for wear and tear from rubbing or degradation from heat. The install is hard to screw up in this regard because the replacement cords are colour coded and precut to the specified length. But, cord number seven (blue), securing the inner batwing trim, always seems to be the weakest link in the setup and most susceptible to fraying.
Positioning of the fabric tape (not shown- I this purchased separately from my local auto store), is critical to make sure everything stays in position during the opening and closing sequence (per the guide).
I have wondered if some modification might make the system better- like changing how the cords attach (using strong knots and loop fittings for easier replacement), or investigating stronger cord alternatives (apparently Kevlar shock cord is a thing). But will stick to the instructions and parts from MB for the time being.
Doing regular checks (like you would oil and tyres) on the cords, fabric tape, hydraulics and seals, and the canvas regularly will help you spot issues before they become problems and ensure least trouble possible.
I’ll report back when I’ve gotten around to this project (it’s on the list, along with my plans to take my wheels off to detail my callipers and inner wheel arches for the Sydney German Auto Fest Concours event coming up in October
).
Last edited by joshuapace; May 22, 2023 at 08:37 AM.



Thanks for the video Grant, it’s great.
Hey guys, currently having the same issue on my 2027 C63 cab, wish I'd know about these issues before purchasing...
Was a certified pre owned purchase so thankfully under 2 year warranty and at the dealership now getting inspected.
It's a shame cos it's a joy to drive top down but concerned about long term ownership now once it's our of warranty.
Purchased with only 25000kms on it and already like this so guessing the top was opened and closed a lot before I got it.
There must be a way to put the roof in service position/sleep mode, though!? How do you do that when you have a MB with a “key FOB”? My car is not completely key less, it has to be started with a kind of a square key turned on in the dash… ( with a transponder/chip that communicates w the car)
frayed cabling problem and decided to keep our 2018 E400 Coupe.
There must be a way to put the roof in service position/sleep mode, though!? How do you do that when you have a MB with a “key FOB”? My car is not completely key less, it has to be started with a kind of a square key turned on in the dash… ( with a transponder/chip that communicates w the car)
Last edited by Grant_J; Dec 11, 2024 at 08:13 PM.
Hey guys, currently having the same issue on my 2027 C63 cab, wish I'd know about these issues before purchasing...
Was a certified pre owned purchase so thankfully under 2 year warranty and at the dealership now getting inspected.
It's a shame cos it's a joy to drive top down but concerned about long term ownership now once it's our of warranty.
Purchased with only 25000kms on it and already like this so guessing the top was opened and closed a lot before I got it.
what did you do it for the problem ? They said to me have completly change !!!







