Quote:
Originally Posted by xsun
What is OVP？ There is a 15A fuse sitting behind the battery, fuse is good. Where is the control valve? I just see a big T/B module in the center of manifold
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It is the overvoltage protection relay. It sits behind the battery in a small red box. It will be behind the waterproof plastic shield. Before shelling out $1000 for the wiring harness, replace the OVP for $40. It is an item that usually goes bad anywhere from 50k-150k on the w124's and can cause a ton of idle and stalling problems.