W124 Vacuum pump for locks
How can I check if my vaccum supply pump for lokcs is working? I just put in a use one I got from a used parts shop and it does not seem to work.
I tried to run some wires directly from the battery to the TWO Terminals with RED(+) and BROWN(-) wires. Nothing happend.
Any other way to test if I got a busted pump? Can this be repaired?