Air suspension problem, please advice...
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Joined: Oct 2010
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S500 1999
Air suspension problem, please advice...
Hi, I have an S500, W220 '99 and a couple of weeks ago the message "Stop Car too low" appeared.
After finding info, I replaced the suspension pump because the old one made a LOT of noise. Now it's much more quiet and the pump blows again.
However, the car still does not rise and so I checked the valve block. It seemed that no air was coming out of it, while the new pump is definitely pumping air into the valve block.
So I replaced the valve block too.
Same problem, no air is coming out of the valve block.
I noticed two connectors on the valve block. How can I test if power is supplied to the valve block?
Can anyone tell me what wires must have what voltage to switch on the valve block so that I can test it with a multimeter?
I checked all fuses, one was broken and I replaced it. Are these kind of fuses always VISIBLE broken? I mean could it be that a fuse is broken while you can't see it? (i.e. do I have to test them too with a multimeter?)
I hope someone can give me a clue why there is no air coming out of the valve block, while the pump is pumping air into it.
Kind regards,
Maurice
After finding info, I replaced the suspension pump because the old one made a LOT of noise. Now it's much more quiet and the pump blows again.
However, the car still does not rise and so I checked the valve block. It seemed that no air was coming out of it, while the new pump is definitely pumping air into the valve block.
So I replaced the valve block too.
Same problem, no air is coming out of the valve block.
I noticed two connectors on the valve block. How can I test if power is supplied to the valve block?
Can anyone tell me what wires must have what voltage to switch on the valve block so that I can test it with a multimeter?
I checked all fuses, one was broken and I replaced it. Are these kind of fuses always VISIBLE broken? I mean could it be that a fuse is broken while you can't see it? (i.e. do I have to test them too with a multimeter?)
I hope someone can give me a clue why there is no air coming out of the valve block, while the pump is pumping air into it.
Kind regards,
Maurice
