Need help--1992 500sl no ignition. I understand ovp relay could cause the problem. Where is the relay located? Is there a place I can check for voltage to the EZL? Is there a check for the crank position sensor? Any help greatly appreciated.

The OVPR is under the plastic cover at the rt/rear of the engine area. However it doesn't supply the ignition module w/power, that comes directly from the ignition switch.
The crank sensor wire plugs into the ignition module.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator