New battery-Started car. Car started immediately. GP light is still on. Checked for voltage at the 5 pins. They all have voltage after 5 minutes. Time for a new relay? I read somewhere in the forum that the relay is repairable, something about changing a capacitor? Opened up the relay and nothing looks burned inside.

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'85 300D Cal 280,000 miles
'14 GLK 350 60000 miles