Updates: The MB-Tex Problem




From what I've read in here (haven't had the time to read all 16 pages so forgive me if this has been asked befor) and per the TSB is the seats aren't showing signs of bleeding then they won't do the fix even though it's clearly within the production time frame for those that are showing signs?

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I was also told the new covers were German made, but that picture was pretty convincing evidence about their true country of origin. I'll try to find the specific post.

I was also told the new covers were German made, but that picture was pretty convincing evidence about their true country of origin. I'll try to find the specific post.
It wasn't clear to me what he meant by "being used now." In fact, I would take it to mean that is what is being used at the factory.
Either way though, don't really care where it's made, as long as it's not defective.
Last edited by joshg1001; Mar 7, 2015 at 07:03 PM.
Last edited by jkrezdorn; Mar 12, 2015 at 03:03 PM.
From what I've able to learn so far, this seems to be a problem with the plasticizer that is used to soften the vinyl used in MB-Tex. For some as yet unexplained reason, a combination of very cold, then warm, temperatures can cause this additive to leach out of the fabric, producing what looks like a shiny spray to form on the seating and headrest surfaces. After some cooling, a white lanolin-like substance will form. It looks like this:
or like this:
The appearance of the stains changes dramatically with temperature, and may even disappear on its own, but it always comes back. MB is aware of the defect, and has issued the following TSB:
"Topic number
LI91.18-P-060470
Complaint
Oily, shiny surface or white residues on MB-Tex seat covers
Cause
In cold weather the surface of the MB-Tex can appear oily or shiny.
When the material warms up again, the substance evaporates and this can result in white edges on the surface (IMG_2054.jpg)
Remedy
1) For customer vehicles with issue only!
Replace the seat cover and head rests, except for the front passenger seat bottom.
The passenger seat bottom cannot be changed at this time because the factory calibration is performed on the cushion/cover/bladder as a complete set.
We are currently in developing a spare part kit, once established, this Tips LI will be updated.
2) For vehicles in dealer inventory
Please clean the seats with warm soapy water solution (do not use aggressive cleaning agents) before releasing to customer.
A final resolution is currently under development, this LI will be updated accordingly."
Thanks to member Rocman8 for finding this TSB.
In my case, my dealer has been contacted and has ordered the repair kit, although it is currently backordered due to high demand.
I have also contacted MB-USA and spoke with two representatives today. I now have a case manager who will escalate this and have some answers by tomorrow. She agreed that my experiences with the car have been unacceptable and will be addressed by them. She also asked if the car was leased, financed, or purchased outright, so they may be considering a replacement vehicle, but that's just speculation on my part.
This thread might be a good way to share information with others who may be experiencing this very odd problem with their MB-Tex seats.
Last edited by Seancvaughan; Mar 25, 2015 at 09:28 PM. Reason: Additional input
Does that area get warm when you switch on the seat heaters?



