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Some time ago, I converted my SL steering wheel from ordinary to sport leather wheel with padle Schifters.
Then came the opportunity to buy a AMG Designo steering wheel, with padle Schifters, in mint condition, from a CLS.
Got it fitted today.
Very pleased I am.
Now since the CLS is a full digital car, and the R230 still is an Analog car, the airbag module, from the CLS, would not work with the SL, so I simply switched the PCB module as shown below, and everything worked perfect.
Special thanks to Chris Messmer for his advise on the electrics.
Here’s to never finding out if that airbag actually works, in action.
Although I smell a rat here, the assumption need to be refuted.
When i wrote above that everything worked perfect, that included the airbag.
Here is what I did to make sure the airbag would work, after install, and not blow up in my head, when I reconnected the battery.
First of all, the ID of the airbags are identical, so no component misc mash there.
Second, the PCB I use was already sitting in the car, so it is programmed to work with the car.
The test that the AR module performs each time you turn on the ignition, checks all airbags in the car, including the one in the steering wheel, and if everything okay, the airbag light turns off.
With Xentry I looked for errors, but none there, neither actual nor stored.
Last but not least, I performed 3 test with Xentry. One if there was short circuit to ground, one of there was short circuit to positive, and one measuring the resistance through the airbag explosive trigger, and all where okay.
So all though i have not blown the airbag to test it, I am 100% sure it will work when hopefully never needed.
This lob as well as others would not have been safely possible without DAS / Xentry. It is the best tool I have in my Toolbox. Wouldn't do without it, wouldn't go about the jobs done without it. ( installed by @pmercury )
I can recommend DAS / Xentry to anyone who DIY on a MB.
The SRS module can test the resistance of the wiring and the squib itself so it knows there are no shorts or cuts and can verify that the squib is properly ready to fire the igniter. What it can can't do is tell you if the airbag itself is in good condition (no cuts, rotten fabric, or foreign material on it that could cause a malfunction or injuries) or that the igniter is good (no shrapnel will come out of it or that it is actually loaded with the right amount of explosive to properly fire).
In theory, modern (MY2002+) MBZ airbags are designed to last "forever" and there is no replacement schedule, so there is really no reason to believe that there would be any issues.
Last edited by Rudeney; 02-02-2020 at 04:10 PM.
Reason: Fixed an important typo
The SRS module can test the resistance of the wiring and the squib itself so it knows there are no shorts or cuts and can verify that the squib is properly ready to fire the igniter. What it can do is tell you if the airbag itself is in good condition (no cuts, rotten fabric, or foreign material on it that could cause a malfunction or injuries) or that the igniter is good (no shrapnel will come out of it or that it is actually loaded with the right amount of explosive to properly fire).
In theory, modern (MY2002+) MBZ airbags are designed to last "forever" and there is no replacement schedule, so there is really no reason to believe that there would be any issues.
Ohh. Reading your post carefully again, I believe you mean "What it can't do is tell you" and not "What it can do is tell you".
I took it apart, just to check if it was kind of damaged.
And it all looked fine.
01-31-2020, 02:06 PM
