MFD screen is fading
Thread Starter
Almost a Member!
Joined: Feb 2008
Posts: 49
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From: Chicago IL
02 C240 Black
MFD screen is fading
Recently I have noticed that just the top lines and bottom couple lines of my MFD are intermittently fading. Does anyone know if I can replace the MFD separately or am I going to have to replace the cluster as a unit?
Super Member
Joined: Jun 2007
Posts: 502
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From: SOCAL
03 c240
so is mine. i can see that some squares are lighter than others. i would also like to know the answer to this.
Out Of Control!!
Joined: Nov 2001
Posts: 10,067
Likes: 11
From: Westwood, NJ
2004 Civic Si. FWD for the Win!
I think this was discussed recently - try a search. IIRC, people were having the MFD replaced under warranty, so not sure how much valuable info there is here on the topic for those of us who are unfortunately not still under warranty.
I'm in the same boat; once it's sunny and over 60 degrees, I lose the bottom half of the numbers in the bottom row of the display. Gotta love Mercedes quality control.
I'm in the same boat; once it's sunny and over 60 degrees, I lose the bottom half of the numbers in the bottom row of the display. Gotta love Mercedes quality control.
Super Member
Joined: May 2004
Posts: 911
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From: Rhode Island
Debadged 6-Speed '05 C320 Sports Coupe
A common problem with LCD displays is a loss of connectivity between the coated glass and the circuit board. The connection is established using a rubber "zebra stripe" strip. The zebra stripe has a fine-pitch of alternating conductive and insulating rubber-like material. The zebra stripe makes the connection between the nickle contacts on the glass and the tinned contacts on the PCB.
The symptoms are caused by increased contact resistance.
It is easy to fix, once the assembly is opened. The contacts and the zebra stripe are re-assembled and the "weak" segments will work fine.
The symptoms are caused by increased contact resistance.
It is easy to fix, once the assembly is opened. The contacts and the zebra stripe are re-assembled and the "weak" segments will work fine.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 5,854
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From: Huntington Beach, Ca.
'17 Jaguar XF
Also.....extreme heat and cold cause LCDs to behave erratically with the symptom you describe. Once it warms up/cools off for a while in the cabin the display returns to normal.
