LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 1985 >> 500SEC >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH Cis >> Lambda Control System Checks >> Electrical Testing >> Frequency Valve
September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Frequency Valve

Engine coolant and oil temperatures must be above 68° F (20° C). Engine should be running at idle. Place hand on frequency valve. If valve is buzzing (vibration felt), valve is working and test is complete. If valve is silent, it is defective and must be replaced.

scientia non olet · About LEMON Manuals