Diagnosis And Testing: Troubleshooting: Notes

Special tools and workshop equipment required 

• Vehicle diagnosis, testing and information system VAS 5051B or subsequent unit
• or Vehicle diagnosis and service system VAS 5052

Before beginning any service work, the cause of the damage should be pinpointed using "Guided Fault Finding".

Guided Fault Finding  is performed using the vehicle diagnosis, testing and information system VAS 5051B or the vehicle diagnosis and service system VAS 5052.

Thoughts Before Fault Finding

You should try to create a logical fault finding process.

-- Make yourself aware of what kind of complaint is occurring and what fault finding possibilities you have.

• It must also be clear: You should not find faults that others have already found and recognize. Try to see if your problem already had a solution described in Technical Problem Solving.
• It is possible for you to contact your Technical Support Center (TSC) or the importer in your country. You should use this possibility! It can save you time, effort and money.
• It can also be helpful to be acquainted with the Diagnostic Trouble Code (DTC) entries from other control modules. Always interrogate all control modules. Also, have the BUS topic in mind during fault finding. For example, in an instance like this TROUBLESHOOTING, SPECIAL INFORMATION => Malfunctions Outside Transmission .
• You should a have diagnostic protocol available when contacting your importer or TSC.