Diagnostic Tool

For special tools and diagnostic equipment purchases contact API International at or 512-280-4391.

Service and Collision Information Contains service manuals back to 1980 models, wiring diagrams back to 1984 models, and TSBs back to 1985 models. Collision information is included in service manuals. Website also includes training information, labor times, workshop tool information, parts catalog, wheel/tire run flat information, Pcodes and model map.
Reprogramming Information
Which models and model years of vehicles can be reprogrammed?
ECU reprogramming was phased-in starting with the 1992 model year 3 series.
How does a technician determine whether a reprogramming event is needed for a particular vehicle?
To determine if reprogramming is needed the technician must establish a connection to the vehicle via OEM equipment or J-2534 interface and run our software update program.  An interactive, web based version of this program is available on the website.
What OEM equipment is needed to reprogram vehicles?
The Integrated Service Information Server is needed to reprogram vehicles.  The ISIS is available for purchase from API International at or 512-280-4391. 
What J-2534 reprogramming capabilities are available?
1996 and newer vehicles are compatible with J-2534 reprogramming.
How does a technician obtain the calibration?
The data needed is available to subscribers at

To use the Online Service System (OSS) for module reprogramming and vehicle diagnosis, it is necessary to meet the following technical requirements.

PC/Internet Requirements:



Operating System

Microsoft Windows XP Professional 32-bit, with Service Pack 3

Microsoft Windows 7, 32-bit or 64 bit


Resolution minimum 1024 x 768 pixels, minimum 256 colors


Minimum of 2GB extended memory

Hard Drive

At least 80GB free space


Minimum of Intel Pentium IV, 2GHz or higher

Internet Access

When Using the ICOM:

  • LAN internet connection, minimum 2Mbit/s upload and download speed. Latency of less than 50ms while connected to the OSS server.
  • Additional network card for the ICOM connection.

When using an SAE –J2534 Pass Thru Tool

  • LAN internet connection, minimum 2Mbit/s upload and download speed. Latency of less than 50ms while connected to the OSS server.
  • One free USB or RS232 port


Microsoft Internet Explorer 7 or later

Mozilla Firefox 4 or higher. Please install the addon:


Vehicle Interface Device:

BMW - ICOM Vehicle Interface or SAE J2534 Pass Thru Tool (PTT). The PTT devices from ACTIA and Drew Technologies have been verified for use.