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2002 S500, 1993 Nissan 300zx
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Discussion Starter #1
My 02 S500 is riding low in the left fron and high in the right rear.

After reading several posts about sensors and such, I replaced the left front sensor (A0105427617) and it did not seem to solve the problem.

Contacted a local Mercedes Specialist who says that the level must now be reset with their computer program.

1.) True? False?

Am considering replacing the rear sensor as well.

2.) BY THE WAY, there are only 3 level sensors, right? (2 front and 1 rear)

3.) And, if my understanding of it is correct, the rear sensor (just the sensor, not the bracket, etc.) has the same part number as one of the fronts.
 

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S500 | 220.175 | 113.960
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363 Posts
Did you perhaps replace the control arms in the front?
It is a common mistake when attaching the ride height sensor back onto the vehicle, to position the sensor in a way that causes what you are describing.

If not, check the front shock top for leaks. Sounds like the rear is high because the front is low, so the car is leaning.
I've noticed such imbalance drastically reduces the handling and driving capabilities of our cars. It is like a dog with three legs, you can walk, but never run.


Front shocks are originals? I assume they are non HYDROLIC, so go after leaks if the sensor is mounted correctly. If it turns out to be the sensor indeed, try to avoid driving tiled like that for long, extra stress on that front shock can drastically reduce its life.
 

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S500 | 220.175 | 113.960
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And if you end up changing the shock, its an easy DIY, come back we will help you with a step by step, I found the fronts to replace much easier than the rears.
 

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2002 S500, 1993 Nissan 300zx
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115 Posts
Discussion Starter #4
Over the last 2 years, virtually the entire front end has been rebuilt.

The shocks were rebuilds from that crappy outfit in Florida - can;t remember their name but they are criminals at best.

Both upper control arms, both lower control arms, both strut rods/arms, ball joints for the spindles/lower control arms, new pump, and new valve/metering block.

The sensor that I just replaced on the front left was pretty badly worn and spun freely. The one I just installed is much stiffer.

At this point, I think it has to be that sensor in the rear. Can anyone throw out a part # for that one?
 

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2002 S500, 1993 Nissan 300zx
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115 Posts
Discussion Starter #5
Follow Up:

Over the past couple of days, the car has mostly leveled itself out. It took about 50 miles of driving, but the new sensor must be doing something right. It is still not perfect, but it is very close now. Maybe some more driving will finish the leveling process for good.
 

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2001 Mercedes S500
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3 Posts
Common Mistake

Did you perhaps replace the control arms in the front?
It is a common mistake when attaching the ride height sensor back onto the vehicle, to position the sensor in a way that causes what you are describing.

If not, check the front shock top for leaks. Sounds like the rear is high because the front is low, so the car is leaning.
I've noticed such imbalance drastically reduces the handling and driving capabilities of our cars. It is like a dog with three legs, you can walk, but never run.


Front shocks are originals? I assume they are non HYDROLIC, so go after leaks if the sensor is mounted correctly. If it turns out to be the sensor indeed, try to avoid driving tiled like that for long, extra stress on that front shock can drastically reduce its life.
Hi
I had my RH Upper Control arm replaced yesterday, today my S500 is sitting real low on the right. What is this 'Common Mistake'?
Cheers
 

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2001 Mercedes S500
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Easy Change

And if you end up changing the shock, its an easy DIY, come back we will help you with a step by step, I found the fronts to replace much easier than the rears.
Hi
When my RH Control Arm was changed, they pointed out a leak on the left front shock. It didn't fail the test, so they just advised about it.
Its the Airmatic system, I thought you needed specialist tools? Or is that jsut something the dealers say to tie you in?
Cheers
Mark
 

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And if you end up changing the shock, its an easy DIY, come back we will help you with a step by step, I found the fronts to replace much easier than the rears.
I just replaced the back drivers side strut but it’s still lower than the right. How do I DIY RESET 2000 w220 S430?
 
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