jimk100189

My 98 W210 (E300d) won't start. With key turned in ignition, doesn't turn over. (Checked starter relay and starter - both OK, can manually activate starter). Found some dampness in the compartment where the computers located (Tampa where humidity is a constant 80-100%) - dried it out. Main battery (under seat) fully charged, plus new battery in key fob. Need advice on how to troubleshoot without having to tow it to the dealer.

Plutoe

My guess is that it is the K40 relay(first group in the passenger side control module box)