I am visiting my brother in India and his 560sel has a problem with the instrument cluster. I am helpless here as I have all my hardcopies in Canada. I need the electrical diagram for the instument cluster.
I removed the dash to replace some bulbs and upon reconnecting the fuel, oil pressure and temp gauge all go to full deflection and do not change. I suspect a bad ground or a lose connection. Rest of the cluster works fine.

Thanks

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89, 300SEL
98, E430 black on black