Automatic Transmission Repair And Replacement Information (24 09 00)

TRANSMISSION REPAIR

Service Information bulletin B24 23 07 (Automatic Transmission Diagnosis and Troubleshooting) has been posted on BMW TIS. It contains important hints and procedures needed to properly diagnose automatic transmission concerns.

It is required that all diagnostic and troubleshooting steps listed in Service Information bulletin B 24 23 07  be performed when investigating all automatic transmission complaints prior to submitting a PuMA case ("TC Case" or regular technical support "Case"). 

A PuMA case may be submitted ONLY after all appropriate diagnostic steps and/or hints listed in SI B 24 23 07  have been completed and diagnostic results are inconclusive (regular technical support case), or when a component replacement (transmission, Mechatronic, or VB-TECHM) is requested ("TeileClearing Case"). Such a PuMA case must include all the necessary information required by SI B 24 23 07  . 

* A Part Replacement Authorization must be requested via PuMA by submitting a "TC Case".

** It is no longer necessary to obtain a Part Replacement Authorization via PuMA for repairs or replacement of a 4-speed automatic transmission; however, the available technical assistance should be utilized before repair attempts are made. 

*** It is no longer necessary to obtain a Part Replacement Authorization via PuMA for repairs or replacement of a 5-speed automatic transmission; however, the available technical assistance should be utilized before repair attempts are made. Additional diagnostic information for ZF 5-speed automatic transmissions is available via the "Diagnostic Troubleshooting Guide for ZF 5-speed Automatic Transmissions". For more information, please refer to SI B 24 02 09  . 

When creating a PuMA case regarding any automatic transmission complaint, please ensure that it contains ALL of the information required by SI B 24 23 07  , including, but not limited to: 

• A full description of the complaint and whether or not the complaint has been verified  .
• A detailed description of the operating conditions, environment, road conditions, anything related to the complaint, or the conditions under which it can be duplicated. The details must be sufficient to ensure that the person reading your case will be able to understand the situation and/or duplicate it if necessary.
• Identify any work performed during each service visit for the same complaint.
• Results of tests performed, i.e., measurement of wiring harness resistance values, etc. Always provide specific readings and observations including Check Control messages, fault warning displays, range displays, modifications to the vehicle, and verification of approved wheel and tire combinations. Statements such as "in spec" are not adequate.
• Include "GM" or "ZF" in the subject line and the transmission serial and part numbers from the ID's tag in the "Work Performed" field of your case. 
• Include the transmission fluid level and condition. 
• If the problem concerns shift characteristics, include the specific shift (i.e., 1-2, 2-1 or 3-2), vehicle speed, road condition (e.g., uphill), etc. in which the complaint can be duplicated. 
• Where fault codes are stored, include the name of the module concerned in "problem description" and the actual fault codes in the "fault code" box. 
• In order to aid the diagnosis, your diagnostic tester must have transmitted FASTA  data indicating that all relevant test modules have been completed.

Always refer to SI B24 23 07 for diagnosis and troubleshooting hints regarding 5 and 6-speed automatic transmissions.