I bought a used central-door-lock vacuum pump for 1988 300E W124. To quickly test it, I applied 12V Battery supply to its power terminal with proper polarity. But nothing happened. There are also a three-wire plug for, I think, control signals; perhaps I need to connect these wires as well. Please let me know, thanks.
How to test a central-door-lock vacuum pump for 1988 300E W124 body? on 1990 Mercedes-Benz 300E
This week's top 10
Recent Mercedes-Benz 300E Questions
- Flucuating oil pressure gauge. Drop when idling. Cold start goes up to 3 bars.
- Making horrible noise and engine shuts off
- my car has been sitting for the last year with maby 4 starts all year but always
- Low beams not working?
- where is the directional flasher relay located? My right directional work the left does not. Both sides light when flasher is engaged