DansSlk

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I went to move some postings around and these got messed up so if we start this over and keep it all in the one place, sorry to the guys who did post in the others but it would have taken forever to put it all back together again.

Since nothings showing on our system and Tom seems to think the posted recall scope info was inaccurate lets wait until we have something factual to post up.

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DansSlk

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Still nothing on this guys not in the EU or the US.

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webslinger

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the "SCN" is....?

Tslick

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Maybe this

Make : MERCEDES BENZ Model : SLK Year : 2009
Manufacturer : MERCEDES-BENZ USA, LLC. Mfr's Report Date : JUL 03, 2008
NHTSA CAMPAIGN ID Number : 08V303000 N/A
NHTSA Action Number: N/A
Component: ELECTRICAL SYSTEM
Potential Number Of Units Affected : 404
Summary:
MERCEDES-BENZ IS RECALLING MY 2006-2008 M-CLASS, R-CLASS, MY 2005-2009 SLK-CLASS, MY 2005-2008 C-CLASS, MY 2003-2004 AND 2006-2008 CLK-CLASS, MY 2003-2008 E-CLASS, MY 2004 AND 2008 CL-CLASS, MY 2008 CLS-CLASS, MY 2004 AND 2007-2008 S-CLASS, MY 2003 G-CLASS, AND MY 2003-2004, 2006 AND 2009 SL-CLASS VEHICLES. A SOFTWARE CALIBRATION NUMBER (SCN) CODING RECEIVED ON THE AFFECTED VEHICLES DURING A RECENT WORKSHOP VISIT WAS INCORRECT. DEPENDING ON THE MODEL YEAR AND MODEL AFFECTED, THE RESULTS OF AN INCORRECT SCN CODING CAN AFFECT A NUMBER OF VEHICLE SAFETY AND EMISSION FUNCTIONS INCLUDING THE FOLLOWING TYPES OF FUNCTIONS: (1) THE FUEL GAUGE READINGS MAY BE INCORRECT; (2) A STUCK FUEL-LEVEL SENSOR MAY NOT BE DISPLAYED IN THE INSTRUMENT CLUSTER; (3) THE OBD SYSTEM MAY CAUSE THE CHECK ENGINE LIGHT TO ILLUMINATE INCORRECTLY; AND, (4) THE SPEEDOMETER MAY BE OUT OF TOLERANCE.
Consequence:
IN THE EVENT OF A VEHICLE CRASH, THE ELECTRICAL FUEL PUMP MAY NOT RECEIVE A CRASH SIGNAL THAT IS REQUIRED FOR THE FUEL PUMP TO DISCONNECT AND PREVENT FUTURE FUEL DELIVERY AS DESIGNED.
Remedy:
DEALERS WILL RECODE THE SCN FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING AUGUST 2008. OWNERS MAY CONTACT MERCEDES-BENZ AT 1-800-367-6372.
Notes:
MERCEDES-BENZ RECALL NO. 2008 070001. CUSTOMERS MAY CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY: 1-800-424-9153); OR GO TO HTTP://WWW.SAFERCAR.GOV.

DansSlk

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Yep SCN coding is used by dealers to code the more complex control units, it is custom generated by MB at the request of a software app we have and then then DAS downloads it into the car for processing.

It contains information such as DOB, Model Type, Country, Options, VIN, Software Version, a unique ID and so much more. Basically we use it to make updates, replacements or retrofits simple because instead of having to mess about with hundreds of lines of code (especially when retrofitting) we can make a simple change in a GUI say to add an option and a code is automatically created, it prevents us from having to directly modify the code since thats not such a great idea in a production environment where one typing mistake can cause serious harm to the electronics.

Since the most complex control units are normally the ones that have a hand in emissions related stuff they also drop in a unique ID that allows MB to comply with US legislation on emissions related control unit software integrity.

Just think of it as using a 2 page GUI to setup your new computer instead of getting down into the code to do the job.

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