decker123

I have problem with air rear suspension. I want change to regular spring. Suncore sells kit for ML and GL (the same kit). I am not sure about this kit be working on R350.
Maybe somebody know more about this???
https://www.suncoreindustries.com/pr...-ml-class-w164

R3504Matic

I wouldnt do that.
The air suspension is so easy to change and it is not that expensives.
Look up Arnott Air Suspension videos on the Mercedes R class, they have how to video to do it.

efzauner

Ditto on that. Changing rear airbag is pretty standard around 100K miles. BUT DO IT ASAP before your pump burns out from running too much to keep leaky airbags inflated!

Put in Arnott bags, very easy to do. and you get to keep your self leveling rear suspension.
https://www.rmeuropean.com/Products/...770-V5787.aspx
comes complete with new plastic upper clip instructions. and Arnott phone support is A1!

decker123

I have problem with left air bag. I replaced 2 times and still is low air. I think is something else.Left side is very high. No idea whats going on with this, probably is some air leak, is very hard to find.

efzauner

So it may be the level sensors. You can replace them yourself. You can also try to switch left to right to see if the problem switches side. It is unusual that airbags fail that quickly. What sort of mileage? If you replace the sensors you still have to bring them to Mercedes to have the level calibrated.

tru1man

I used the Suncore bags about 18mo ago. Very inexpensive and still working as expected. It makes sense to me that the ML GL and R would use the same product, being that the ride height is adjusted by the level sensors and any difference in air pressure would be managed by the compressor. Steel springs would need to be model specific.

R3504Matic

I had issues with similar, I replaced the air compressor and it stayed level. Your R should have auto leveling but it cannot if the air compressor is not working properly. It is an easy to solution to replace the air compressor. It is located in passenger front. I spent $280 for my compressor.

I also replaced the relay that goes with the compressor too.