Kent will show you some quick checks to test operation
If you have installed one of our glow relay override kits with the solenoid relay, and suspect you are having issues with activation here are some quick tests you can do to determine if it is a solenoid or other problem. This might also help to determine where any battery drain problems might be coming from. If the relay is sticking closed then your battery will drain very rapidly.
Problem & Solution
Common among these chassis:
W114
W115
W116
W123
W126