S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

Trunck blow yellow 20A fuse constanty. What could be the issue

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Old 06-08-2018, 01:32 PM
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MB 2001 S320 W220 K50 Lorinser
Trunck blow yellow 20A fuse constanty. What could be the issue

I just bought a second hand MB 2001 W220 S320 K50 Lorinser with no owner manual and after a week or so central door lock doesn't work. It seems that it has an issue with the trunk because by using the remote control will blow the yellow fuse under the right back seat. The vacuum pump seems to be working right is there another pump somewhere? Is the pse pump the same as close assist? Can one buy just the motor for the vacuum pump if this result to be the case I still have to check that out for sure.?
Old 06-09-2018, 09:04 AM
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2004 S600, 1998 M3, 1974 2002 Touring, 2006 Cayman S
Sounds like PSE pump is bad. I had the same issue. Pump will work but very shortly it will blow the fuse.
Old 06-10-2018, 03:53 PM
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Mine 2005 S430 4Matic * Wife's 2005 S430 4Matic *
If you determine that your pump has broken, you'll need to replace the pump.

Make sure you find out where your system is leaking from. This leak is why your pump burned out. In my wife's S430 the leak was within the trunk lock/latch/soft-close feature. Her pump got so hot, the ID Sticker on the outside of the pump was all melted.

If you don't fix the leak, you'll burn out the next pump you put in.

I actually have two pumps not being used at home right now if you end up needing one, contact me and we can work something out.

Both pumps work and have been tested. Let me know if you have any interest and if so, which one.

The pumps I have are:

220 800 05 48
220 800 02 48

I'm thinking $100 + $15 shipping to the USA....I don't know where you are located so shipping might be more if you need international shipping.

But no matter what you do, DEFINITELY find and fix the leak if your pump is burned out.
Old 06-11-2018, 12:57 PM
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Mercedes
Sounds like your pump is fine but you have a vacuum leak that is causing your pump to run too long and fuse blows . It’s designed to do this to protect the system

you need to find the vacuum leak
Old 06-12-2018, 08:14 PM
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cars
Sounds like you have a vacuum leak, it's either the seat lumbars, center lock lines or soft close mechanism lines. Fix the leak and replace the fuse.
Old 05-09-2019, 01:41 PM
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MB 2001 S320 W220 K50 Lorinser
Originally Posted by The Shoeman
If you determine that your pump has broken, you'll need to replace the pump.

Make sure you find out where your system is leaking from. This leak is why your pump burned out. In my wife's S430 the leak was within the trunk lock/latch/soft-close feature. Her pump got so hot, the ID Sticker on the outside of the pump was all melted.

If you don't fix the leak, you'll burn out the next pump you put in.

I actually have two pumps not being used at home right now if you end up needing one, contact me and we can work something out.

Both pumps work and have been tested. Let me know if you have any interest and if so, which one.

The pumps I have are:

220 800 05 48
220 800 02 48

I'm thinking $100 + $15 shipping to the USA....I don't know where you are located so shipping might be more if you need international shipping.

But no matter what you do, DEFINITELY find and fix the leak if your pump is burned out.
Hi Shoeman, that problem was resolved, yes it was the vacuum pump that was making a short circuit. Did you mean that pump? Because now it is the Airmatic suspension compressor that burned out. You mean this is burning out as well because there is a leak? Which test is best to do?
Old 05-09-2019, 01:42 PM
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I think this is next because now it burned the Airmatic suspension compressor!

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