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Help with central locking pump

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Old 04-15-2009, 02:03 PM   #1
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Default Help with central locking pump

My central locking vacuum pump went bad. I opened the unit and found the graphite impeller shattered in multiple pieces.

I was looking through the ebay listing and on internet and it seems like the vacuum pumps itself look very similar.

So I was wondering whether I could buy the cheapest unit from ebay for other German cars (like MB or VW) and replace just the graphite impeller. Would that work. Does anybody know anything about the impeller sizes in these pumps? Thanks.
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Old 04-15-2009, 02:13 PM   #2
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I have a CLP that I know went bad electrically. I can pull the cover off and check out the inside. I will let you know.
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Old 04-15-2009, 04:54 PM   #3
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Quote:
Originally Posted by myers1.8TQ View Post
I have a CLP that I know went bad electrically. I can pull the cover off and check out the inside. I will let you know.
Thank you. That would be awesome.
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Old 04-15-2009, 05:39 PM   #4
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Default Yes you can.

Quote:
Originally Posted by john.galt View Post
My central locking vacuum pump went bad. I opened the unit and found the graphite impeller shattered in multiple pieces.

I was looking through the ebay listing and on internet and it seems like the vacuum pumps itself look very similar.

So I was wondering whether I could buy the cheapest unit from ebay for other German cars (like MB or VW) and replace just the graphite impeller. Would that work. Does anybody know anything about the impeller sizes in these pumps? Thanks.
There is actually a tech article about this exactly.
http://www.audiworld.com/tech/elec.html
Although, I can't say if the eBay ones will have the same impeller.
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Old 04-15-2009, 07:17 PM   #5
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Default Here it is:

CLP is good mechanically, but electronically it is done.

Let me know what you think.

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Old 04-15-2009, 08:24 PM   #6
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Quote:
Originally Posted by myers1.8TQ View Post
CLP is good mechanically, but electronically it is done.

Let me know what you think.

Click the image to open in full size.
I just sent you a PM. Thanks.
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Old 04-16-2009, 11:55 AM   #7
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Hello I just joined the forum so bear with me.

will a pump from a Jetta/Passat work as a replacement?
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Old 04-16-2009, 01:02 PM   #8
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Yes. I did it to my central locking assembly. All that is needed is a small piece of vacuum hose (about an inch) to "extend" the pump tube. There is a tech article floating around somewhere here or on the WWW. The nice thing is you don't have to do any key reprogramming
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Old 04-16-2009, 01:18 PM   #9
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Has anybody used a vacuum pump from Mercedes Benz?
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Old 04-16-2009, 01:23 PM   #10
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That's great to know, my pump works great. My issue is my remote stopped working (doing a search)

Any ways I found 2 pumps a junkyard the impellers look good just need to test.
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Old 04-20-2009, 11:54 AM   #11
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I replaced that motor/pump with the one from myers1.8TQ and ...

Awesomeness.

I got my central locking functionality back.
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Old 04-20-2009, 12:02 PM   #12
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Nice, glad it worked out.
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Old 04-20-2009, 12:09 PM   #13
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Yep. But hope this one doesn't go bad for at least few years. I will have to score another unit as a backup.
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Old 04-20-2009, 12:13 PM   #14
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Yeah hopefully it last. Did you wrap it in a plastic bag and zip-tie it?
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Old 04-20-2009, 12:23 PM   #15
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Well no I didn't. But the lid has a rubber sealing which is pretty tight. it almost feels like it would be watertight.

Why would I need to do that though?
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Old 04-20-2009, 12:25 PM   #16
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It is common for it to get wet back there. That is what happened to mine and the rubber seal was good too. I recommend doing it.
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Old 04-20-2009, 12:29 PM   #17
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Hmmm. I should do that. I will keep it on my list for summer.

I am wondering though, how can water seep at that location? From where?
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Old 04-20-2009, 12:33 PM   #18
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I would definitely do it. Dont want to go through the annoyance again Im sure. This red tube is the sunroof drain and it can come loose and drain directly on the CLP. Mine wasnt in the correct place, but it still gets wet back there anyway.

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Old 04-20-2009, 12:50 PM   #19
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Thanks Chris. I will (hopefully) get it done before siht breaks loose again.
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Old 04-20-2009, 01:08 PM   #20
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Yep its a good idea. Good luck.
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Old 04-20-2009, 01:08 PM
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