Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2006330CI COUPE (E46) L6-3.0L (M54)REPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSCOMPUTERS/CONTROLS - NAD CHECK AND RECOVERY PROCEDURES
2006 BMW 330Ci Coupe (E46) L6-3.0L (M54)
Computers/Controls - NAD Check And Recovery Procedures
2006 BMW 330Ci Coupe (E46) L6-3.0L (M54)SECTION Computers/Controls - NAD Check And Recovery Procedures
SI B 84 24 06
Communication Systems
January 2009
Technical Service
This Service Information bulletin supersedes SI B84 24 06 dated June 2008.
[NEW] designates changes to this revision
SUBJECT
NAD Check & Recovery Procedure (I/K-bus Vehicles)
MODEL
E46 (3 Series) from 9/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
E53 (X5) from 10/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
E83 (X3) from 9/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
E85 (Z4) from 10/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
INFORMATION
[NEW] With the release of ISTA/P, the MOXA procedure for recovering the NAD is no longer valid. Perform standard troubleshooting using ISTA. If the NAD is faulty, the TCU should be replaced.
WARRANTY INFORMATION
For information only
Disclaimer
Communication Systems
January 2009
Technical Service
This Service Information bulletin supersedes SI B84 24 06 dated June 2008.
[NEW] designates changes to this revision
SUBJECT
NAD Check & Recovery Procedure (I/K-bus Vehicles)
MODEL
E46 (3 Series) from 9/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
E53 (X5) from 10/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
E83 (X3) from 9/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
E85 (Z4) from 10/03 to 2/06 production with Premium Package (ZPP) or BMW Assist (SA 639)
INFORMATION
[NEW] With the release of ISTA/P, the MOXA procedure for recovering the NAD is no longer valid. Perform standard troubleshooting using ISTA. If the NAD is faulty, the TCU should be replaced.
WARRANTY INFORMATION
For information only
Disclaimer
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.