Originally Posted by
Toolman
A couple of years ago I purchased a Central Locking Pump to have as a spare from a salvage yard seller on ebay. The listing said it was tested and good. I didn't want to tear apart the coupe to test it, so I decided I would just check inside it to see if there was any corrosion. Removing the bottom cover revealed extensive corrosion inside the unit. I sent pictures to the seller and without any resistance he provided a full refund and didn't ask for the part back. It was useless to me so I tossed it. I recommend anyone buying a replacement either as a spare or to fix a problem to look inside it.
Good point, I have one and I think I did open it up and look at it inside, not being sure I will look again. These are not cheap, $200 to $300 and up if I recall.
I was going to test it in the car when I had the trunk apart, I should have taken the time.
Anyone buying one should get one with the plugs still attached with the wires cut, it is not much use having a good pump and using your old corroded plugs caused by the leak that ruined your pump in the first place.