S210 SLS hard suspension issues

[Linuus]

Hi, so I have notice lately my s210 when riding even slowly trough a road bump, the rear part of the boot bounces so hard I can only think I mt be the SLS accumulator or spheres. I saw only they are around 150£ a pair.
The rear suspension levels up when heavy loaded. So the Strut is doing his job, but because the accumulator is seized the ride when going through a even small bump I look like u jumping over a mountain.
My big question is, is this something that u guys could recommend? Do I need to flush/drain the whole hydraulic fluid before?! I have look ever YouTube and internet but I didn’t find any tutorial for my S210, and in my point accumulator is cheaper than the struts 300£ each. :/
Thanks you guys any help counts.



Sent from my iPhone using Tapatalk

 

[LostKiwi]

Accumulators lose gas pressure over time. No gas=no give so hard suspension. Just unscrew, fit new, top up fluid. The should self bleed.

 

[Linuus]

Accumulators lose gas pressure over time. No gas=no give so hard suspension. Just unscrew, fit new, top up fluid. The should self bleed.

Will order 2 spheres as I think I makes more sense to replace both. My concern, is there any night pressure on those lines that I need to disconnect. Sure I will have the car off.


Sent from my iPhone using Tapatalk

 

[LostKiwi]

There will be some pressure. To release as much as possible do the following.
Park car engine off. Lift the rear of the car off the ground. Leave for a few minutes. The pressure adjusting valve (height sensor so to speak) will be in the return position releasing fluid back to the reservoir. Now just release the spheres and fit new. Check fluid level and lower the car. Restart engine and the system should self bleed.

 

[Frontstep]

Don't forget to flush the system and put a new filter in the reservoir you get a lot of black deposits in the system.
Oh and get the right fluid. Or Febi do some
https://bevo.mercedes-benz.com/bevolisten/344.0_en.html

 

[Linuus]

There will be some pressure. To release as much as possible do the following.
Park car engine off. Lift the rear of the car off the ground. Leave for a few minutes. The pressure adjusting valve (height sensor so to speak) will be in the return position releasing fluid back to the reservoir. Now just release the spheres and fit new. Check fluid level and lower the car. Restart engine and the system should self bleed.

Amazing @LostKiwi u r the master!! Many thanks


Sent from my iPhone using Tapatalk

 

[Linuus]

Don't forget to flush the system and put a new filter in the reservoir you get a lot of black deposits in the system.
Oh and get the right fluid. Or Febi do some
https://bevo.mercedes-benz.com/bevolisten/344.0_en.html

I’m using the fluid the car states in the cap



Sent from my iPhone using Tapatalk