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Recently I found my w220 s350 cluster lcd display taken a while to work , especially in the colder days, and I found the fix , it’s fare simple , if you have the same delay display issue , you can test it with my method .
first , you need to take the cluster out and disassemble , and you will see the lcd , take a closer look with the lcd board ,you will find three capacitor, these three capacitor maybe the reason for the display issue.
I test with the glue gun , when I connect the 12v to the cluster ,the lcd didn’t show anything , when I use a new capacitor direct connect with the capacitor pin , the display work right away, so the capacitor fail cause the issue , it need more time to build up , so that’s explain you need more time to display correctly
Good information do you have the model number of the capacitors to order and where we can order them?
Four small capacitor is 4.7uf and the side-by-side bigger capacitor is 10 , but the 4.7uf capacitor is the main cause of the issue but I replace five of them anyway