Hi,guys. Long time since my last thread, but now my car is getting old and I need some advice. I have an S430, 2001-220170. The PSE pump just melted the other day then blew the fuse. I removed the pump, and the brush plate of the motor was all melted and displaced to one side which got the 12V motor stocked. I managed to make it turn on again after cleaning and trimming the plastic excess of the brush plate but it wont put out the power needed to the specs. and apparently has a high amp consumption. I think that the solenoids (10), circuit board and the pump (not the motor) are in good condition. The question is, can I get a replacement pump only? Can I take the pump out of another used pump and replace the bad one. I am concern about the coding needed if I replace the pump with a new or different one. I don't have the Star Diagnosis software and don't have a clue of who can do this for me other than the dealer $$$$. Suggestions are welcome. Please advice. Thank you.
Darrel

 

You could replace the motor. I have done this many times. I have always used motors out of other pumps. I am not sure if you could buy a new motor. As for coding a new PSE the only real coding is for pneumatic seats.

 

I will try that. I got a used pump for a W140. I will try to use the pump if possible, if not at list the electric motor. The big question is what burned the motor? Was it on for a long time? Is the pressure switch working alright? I didn't loose power from the battery so I don't think it was for staying on indefinitely. Once I assemble the used bi-pressure pump I'll let you know. Thank you very much for your comments.

Darrel