Active Body Control Initial Startup Calibration after Repairs

Michael Diagnostician Irving, Texas Posted   Latest  
Resolved
Chassis
2008 Mercedes-Benz SL550 5.5L (273.965) 7-spd (722.9) — WDBSK71F58F137053
5263 Startup Has Not Been Successfully Ended
5268 Initial Startup Procedure Is Not Yet Completed: Perform Initial Startup Operation 'Load Adjustment"

I can't find any information on setting up the suspension height or any procedure needed to be followed after the repairs.

Left Front suspension repaired and now the rear of the vehicle is on the ground and front raised.

I can set the ride height. Not sure if load calibration is even doing anything and plunger calibration fails.

When plunger calibration fails, the vehicle drops from the ride height set.

Using Matco Maximus 3.0 Scan Tool

I have the following DTC's

ABC - Active Body Control

5263 Startup Has Not Been Successfully Ended.

5268 Initial Startup Procedure Is not Yet Completed: Perform Initial Startup Operation 'Load Adjustment"

Anyone know how to find Service Information on this procedure.

I have Alldata and Identifix. I haven't been able to locate any information.

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Jon Owner
Niwot, Colorado
Jon Default
 

Specifically what repair did you do to the left front suspension?

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Michael Owner/Technician
Irving, Texas
Michael Default
 

Left front strut assembly was replaced.

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Robert Owner/Technician
Culver City, California
Robert Default
 

I don't know about your scanner. We use a Mercedes scanner and when you do the start up and take you through a sequence. The plunger test will lift the vehicle to the top and bottom, if it fails, you most likely have a bad shock. I seen problems with rebuilt shocks, I don't think the re builders pay attention on the plunger sensor or even can repair that part.

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Michael Owner/Technician
Irving, Texas
Michael Default
 

That's the only problem I see with the failed test results, I can't see why it failed. I can't even monitor data while it performs the test.

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Jason Technician
Arlington Heights, Illinois
Jason Default
 

You have to perform what’s called Rodeo mode. It’s a function done through the scantool. It bleeds the system.

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Michael Owner/Technician
Irving, Texas
Michael Default
 

Didn't have that option from what I can see. Going to get my hands on a Star Tester tomorrow and try it.

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Richard Technician
Stony Brook, New York
Richard Default
 

I have used an autologic assist to perform the rodeo and load adjustment. I think there were 3 tests that had to be done after changing the strut. Also make sure all your height sensors are reading similar. Like both fronts reading similar and both rears being about equal.

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Michael Owner/Technician
Irving, Texas
Michael Default
 

It's the service information that would provide me with some information on sensor readings that would be nice. I assumed something would reset them once something was learned because I read some stuff online about it. I get pressure readings and height readings, but I have no idea what is correct. Some more testing tomorrow, but just got a 1967 Cadillac Eldorado to rebuild.

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Richard Technician
Stony Brook, New York
Richard Default
 

Did you get back to this one today? I agree that it would be nice if they gave some info as to what the readings should be. I seem to recall when it was done 10 mm in the front and 13 in the rear. I did one about a month ago and I got a bad replacement strut from Arnott. I had it warrantied from the supplier (world pac) and when the 2 were laid side by side the difference was clear. The bottom…

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Michael Owner/Technician
Irving, Texas
Michael Default
 

I completely forgot about the Mercedes today, but the info on height I will try. Overslept today and got Silverado lifter job and Escalate engine rebuild today. I'll try and pull it in first thing in the morning. Thanks for the info. I'll try and compare them, but isn't the height sensor (see it mounted on top) separate? Is the plunger test comparing pressure as to why it might fail?

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Michael Owner/Technician
Irving, Texas
Michael Default
 

Autel does have the Rodeo function including several others under Active Test. Maybe I overlooked on the Maximus 3. I haven't run the Rodeo Test yet, as more work came in today and I am starting to fall behind. I'll try to play with it more tomorrow when I take a break.

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Rudy Technician
Montebello, California
Rudy Default
 

If Matco software is anything like Snap-on its crappy for European vehicles(improving,but crappy) Autologic is the tool you want with Autel coming in a strong 2nd.....

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Michael Owner/Technician
Irving, Texas
Michael Default
 

I have an Autel, but didn't even think to try it. I'll look at in the morning.

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Bill Owner/Technician
Jackson, Michigan
Bill Default
 

Your Autel can do the job on this. Normally after a shock replacement doing the rodeo mode would bleed the system out and cycling the height switch a few times would stable the suspension height. You may very well have additional issues. How's is the fluid looking?? Dirty fluid can be a real issue on these systems. There are valve blocks front and rear if your rear will not raise when doing…

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Michael Owner/Technician
Irving, Texas
Michael Update
 

So, I played with it some more yesterday. I performed the rodeo test and seem to do OK. When I try to do the plunger test with the Autel it seems to loose communication when the plunger test starts (it raises then drops). It continues the test, but the tools reads Communication failure to read the results. I wasn't having the same feeling with the Maximus 3, but it didn't state communication…

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Michael Owner/Technician
Irving, Texas
Michael Resolution
 

I finally got back to the Mercedes and got a 2012 version of the Mercedes Tool. I noticed when I tried to level the vehicle I was getting funny readings from the rear sensor (Suspension\Headlight Aiming Sensor). When I raised the vehicle to inspect, both rear sensors were damaged (Tow Truck/Body Shop may have used chains to hold the vehicle). I repaired the sensors and tried to level the…

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