W211 270 Estate... Suspension Air Chamber
- Thread starter Nthkentman
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- Feb 8, 2007
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- Portsmouth, Hampshire.
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- E55K SL500 E250X2 Smart44 Brabus Track car E450Cabriolet X350 Pick up
On a good diagnostic machine you can test pump efficiency. It only takes about 10 minutes.
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Nthkentman
Active Member
Update:.... The pump is working well. The suspension is behaving as it should. I was supplied a relay to replace the OEM one in case it was iffy, but I'm unsure which relay I need to replace in the box under the bonnet.
AFAIK I believe it to be a green one, in a separate mount at the farthest rear point of the box, but it has different numbers, and the pins are different. I have a 4 pin to replace the relay, but as it all seems to be working OK, is it worth it?
AFAIK I believe it to be a green one, in a separate mount at the farthest rear point of the box, but it has different numbers, and the pins are different. I have a 4 pin to replace the relay, but as it all seems to be working OK, is it worth it?
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Nthkentman
Active Member
I still have it, and I did try to replace the seal and piston ring, but didn't seem to make a lot of improvement, hence the replacement.
The airline connection thread in the old unit is a bit igffy, so could do with a helicoil perhaps. But all the rest works, except the pressure of it... I might tear it apart to see if owt is amiaa inside tho...
The pump rebuild kit is readily available online and is fairly straight forward - no STAR required.
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