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So my right rear is raised to maximum. Before this i replaced level sensors and abc pump. Unable to calibrate car error code stored. i took off rear tire to look at level sensor and this s how it looked. Is that rod supposed to be slightly bent like that?
"Not being hampered by facts, I can discuss the subject freely."
No direct personal knowledge, but - No, that doesn't look normal.
But - There is only one rear level sensor, mounted near the center of the car. That means (I think) that the rear level sensor can't make one side high and one side low.
My first guess is that the solenoid valve for the right rear in the valve block is sticky or damaged, and is leaking air to the strut continuously.
"Not being hampered by facts, I can discuss the subject freely."
No direct personal knowledge, but - No, that doesn't look normal.
But - There is only one rear level sensor, mounted near the center of the car. That means (I think) that the rear level sensor can't make one side high and one side low.
My first guess is that the solenoid valve for the right rear in the valve block is sticky or damaged, and is leaking air to the strut continuously.
this is actually on an s55 amg. does that have the same setup as an s500?
It is the same setup as S500, provided S500 is equipped with ABC suspension.
Generally, there is a level sensor per each wheel, not one per axis, and the hole system is moved by hydraulics, not pneumatics.
You mentioned changing ABC pump and level sensor.
ABC pump shall have no affect on raised rear, but the level sensor does.
Firstly I would double check if the linkage screwed to the sensor arm is fixed on the correct side.
I would have to check on my car, but as far as I remember it shall be fixed on the opposite side - indicated by arrow on the picture.
Let know if changing the position of the linkage fixing helped?
It is the same setup as S500, provided S500 is equipped with ABC suspension.
Generally, there is a level sensor per each wheel, not one per axis, and the hole system is moved by hydraulics, not pneumatics.
You mentioned changing ABC pump and level sensor.
ABC pump shall have no affect on raised rear, but the level sensor does.
Firstly I would double check if the linkage screwed to the sensor arm is fixed on the correct side.
I would have to check on my car, but as far as I remember it shall be fixed on the opposite side - indicated by arrow on the picture.
Let know if changing the position of the linkage fixing helped?
Regards,
Piotr.
i just checked on the left rear and the rod is connected to the inside part of the level sensor just like the picture of the right side above.
Should the right rear rod be connectted to the outside area of the sensor and the left rear rod connect to the inside of the connector?
I am waiting for a new level sensor and lowering links to come in the mail. If i just install the lowering links and just adjust the right rear to be lower then the other sides but to the point where it is even would that affect driveablity? I am just asking this in case the issue may not be the level sensor.
Hi RLNY,
the rods shall be fixed symmetrically to both sides. So both on the inner or outer side of the sensor arm. Maybe you should test both inner and outer setup...
Curently I am having my rear about 3/4" lower than the front. I am planning to fix it in a following way (this is a concept yet, but may be you find it useful):
0. I have already tried to calibrate with SDS, but the romess angle values are not accepted. Most probably because the difference in level sensor voltages is too big. Please note this does not have to be caused by sensor. Check this blog: Fixing rubber mounts
My assumption is that the body moves downwards over time, and then, when you mount a new strut, a difference in level accurs (different sensor voltages on left and right). In my case right rear strut was changed to new, left one is old - there is almost 0.5 V difference.
1. I plan to remove both rear sensors and test them by DIY test-bench, to make sure they are acc. spec.
Specification can be donwloaded here (this is for S600 2005): LevelSensor S600 ABC Datasheet PDF
2. If the sensors are OK, then I will install adjustable linkages.
3. With SDS I will set the body level as expected.
4. Adjust the linkages in a way so they yield same (2.5 V) voltage.
5. Calibrate with SDS, giving the defoult (middle value) of romess inclination angles.
After I fix the ABC hydraulic lines, I plan to execute the above. Will let know the result - if the pratice will follow theory
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