Mercedes-Benz E 240 – Jahrgang 2003?

folgende zwei Fehler habe ich auf dem Auslesegerät… Das Radio funktioniert stellt sich manchmal an und manchmal eben nicht… kann mir jemand einen TIP geben wie ich vorgehen könnte um den Fehler zu finden?

D117  N87/1 (Radio/Radio mit Navigation) – Soll-Ist-Konfiguration des MOST-Rings unterschiedlich.

D103  N87/1 (Radio/Radio mit Navigation) – MOST-Komponente an Position 3 meldet Ringunterbrechung.

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IXXIac
1 year ago

Hello

the error code leads to the diagnosis of MOST bus that goes with Stardiagnosis/Xentry or an MOST Analyzer. If the software can pull out error codes because of comfort systems, then this is also diagnostic. The problem is usually only mechatronicsmen working on cars, because only a small part of diagnostic capability or ready to use brain 1.0 software

Most Daimler brands workshops are “incapable” or simply renew all components in the MOST until it does again. But there are still Daimler workshops with diagnostic mechanics that are often small car houses in the hinterland (Hidden Champions) or traditional companies such as the Lorinser

However, MOST 50 can be diagnosed via OSZI or there are software zb for Techtronix OSZI. http://www.tek.com/de/oscilloscope/tds5000-manual/tdsvnm-can-and-lin-timing-and-protocol-decode software Bosch Esitronic and KTS can also offer MOST Bus

http://www.vector.com/de/de/know-how/most/

https://www.ruetz-system-solutions.com

The MOST Bus Compenete 3 is mW the final stage there I would start without diagnostic access. (MOST 50 has 4 bit “positions” that can arrange any manufacturer as he wants)

So analogue page;

Current input

Mass

Short circuit of a Laustprecher

Cold soldering points

Waterfall

the “normal” suspects

There were also glass fiber breaks, but “ring breakage” is usually short power supply or undervoltage.

Otherwise, look for a BOSCH service or a company that builds/preserves BOS cars (police, fire department, Sanka, emergency doctor, truck) which usually have MOST Bus know-how and tools because most of the BOS and lots of TAXI runs on MOST

IXXIac
1 year ago
Reply to  GrauerWolf83

Hello

So the point is in because MOST devices are stuck diagnostics and error protocols that “count” an MOST specialist in a few seconds what, when, exactly in what order why why the system is going on. The light guides can be measured and not only can they say which light guide cables are interrupted, but also at which point in millimeters from the bush. The MOST system has been developed by Becker Aviation for aircraft. In the MOST system, self-diagnosis detects/misses the wear in the system and calculates downtime when you do not save it for cost reasons.

At Daimler there are diagnostic systems for cars/cars such as Star diagnosis or Xentry with which the error was read out during the inspection simply goes into the diagnosis of the audio/MOST system and first of all device No 3 idenifizert (signment, component number, software stand, production date,) after which you can measure the voltage curves of the device in real time or (k)alte soles look at the hottest one can see

the crunch point is;

  • almost all car manufacturers have neutered/reduced the MOST system and limited the diagnostic capability for parts exchange
  • most mechatronicsmen themselves are not diagnosed, but parts exchangers. No mechatronics engineer runs into the MOST systems for hours or with expensive training to be able to make an accurate diagnosis in order to have only parts to be exchanged in the end. This only make technicians working with/to MOST devices

You can now

  • that phone take hand and find a local MOST specialist there and he tells you after 5-10 minutes of diagnostic time (50-100€ hour) what is happening or he probably tells you on the phone what is the “normal” problem with the E class and whether he can repair it or someone else. This is the expert knowledge that the car manufacturers want to have walled behind a high payment cabinet and the expert knowledge is rarely shared on the Internet. In addition, you need to have know-how and tools to repair
  • download the technical documentation and get your OSZI out of the factory cabinet and start
  • call your Daimler tribal workshop and call in there and wait for the echo. A good service master is quite creative for regular customers or simply looks briefly in the reperature guide or WIS. Has the eh open and you have a created FGST/customer numbers
  • call the ATC of Daimler Benz on the Fildern and call the “Audio Expert” and order the spare part there. It is important to sound like a KFZ mechanic who wants to have the problem of the “old tube” cost-effectively of the jaw/muss and at the same time attempts a “abbreviation”. Before Schrempp, almost every relevant engineer could be found out/tributed (Daimler Telephone Book) and directly “inquire” at Daimler, he then broke down and at a “TOP Down” transfer to Secound Level Support no one asked if one “procures” at Daimler or what cost center it takes.