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2002 e320 4matic
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30 Posts
Discussion Starter #1
there is a small litte black square thing with a clear lid on it and there in a red fuse in it what is it for?. it right by the fuse box but alittle more towards the middle, any ways it was blown so i put a new one in and my abs lights were always on and it went off and my check engine light comes on now, but i can tell a difference in the idle and all that. does somone have like a pic of a diagram or somthin or do yall know what it is?
 

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2006 500SE, 1972 280SE
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345 Posts
It is called the OVP (OverVoltage Protection) relay.
It's a $60-70 piece of hardware that protects your electrical system from voltage spikes. Just replace the whole relay.
 
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