These units can be repaired, although I'm not aware of DIY fixes for broken plastic nipples. I'm sure someone here will chime in if possible though.

Otherwise, Programa carries rebuilt pumps, and will also rebuild your pump as well if you send it in to them. Not the cheapest option, but you'll have a basically new and fully warrantied part:

https://www.programainc.com/default.aspx

 

Short answer, yes you can DIY them.

I fixed a broken nipple on mine using a junk pump for parts.
Note the gold alloy tube... That used to be a drip tip from a vaping device but I'm sure you could find something suitable. And just plain two part epoxy.

 

You might want to contact MAVA on this forum. He also repairs pumps. Has done 2 for me over the years. Good work!
Anziani

 

Yea they can be fixed, but it not is just about fixing the pump, but fixing the USER too - why did that happen????

The vehicle does not do that to the pump???

You need these tools made from very hard plastic-NOT METAL !!!! as plastic gives and flexes a bit....

I use the 2nd to the left tool exclusively, but the 3rd to the left will work, but you must have the touch, or you can break the nipples, and I move the tool in a back n forth clock pattern while prying up...

https://www.harborfreight.com/trim-and-molding-tool-set-5-pc-64126.html

Martin

 

l have had the car for about 2 years and the soft close door system only worked when you reset it by pulling the fuse. i decided to check on the pump and after pulling it from the trunk found that the end nipple had been broken off. trying to pull off the remaining hoses i found that due to the age and not have been off before they were stuck to the nipples and the small pieces broke off. can you buy just the nipple pieces as spares?? I have seen remanufactured ones for about $400.

 

I just replace the whole solenoid pack with the nipples on those pumps as that is the most logical thing to do.

The glue thing works, but for these pumps it more practical here in the USA to replace it. The door lock pump is the one I fix the nipples as that pump is programmed to the car to a certain degree for the features it has.

Mercedes does not sell nipples, so most of us fixing pumps take the parts from scrap pumps...

Martin

 

I occasionally have the issue where the soft-close ceases function until I pull the #9 fuse, but it only happens when I close the trunk and even then only sometimes.

I believe there's a thread on here explaining how to actually fix that issue (I think it's just a setting on the pump itself) but it hasn't been a major annoyance for me so I haven't done it yet.

 

THanks Martin i will probably first look at trying to locate a scrap pump from a yard. there are not that many here in AustaLIA but will see what i can find...last resort if for a remanufactured one...

thanks to all for the information..

cheers and safe driving..

greg