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 MANUALSBMW2001330CI CONVERTIBLE (E46) L6-3.0L (M54)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTECHNICAL SERVICE BULLETINSCUSTOMER INTERESTNAVIGATION SYSTEM - BOARD MONITOR SCREEN BLANKS OUT
2001 BMW 330Ci Convertible (E46) L6-3.0L (M54)
Navigation System - Board Monitor Screen Blanks Out
2001 BMW 330Ci Convertible (E46) L6-3.0L (M54)SECTION Navigation System - Board Monitor Screen Blanks Out
SI B 65 16 03
Sound Systems, Cruise, Alarms, Monitors
October 2003
Service Engineering
SUBJECT
Board Monitor Screen Blanks Out
MODEL
E46 (3 Series) Convertible with Navigation System
SITUATION
The Board Monitor screen is blank or blanks out intermittently.
CAUSE
Moisture intrusion into the Board Monitor from condensation on the center vent ducts.
PROCEDURE
Board Monitor is currently blank (follow steps 1-8)
1. Remove the center vent and inspect the Board Monitor housing for water stains.
2. Check Power and Ground supply for the Board Monitor.
3. If wiring is good, and Board Monitor has water stains, then replace the Board Monitor.
4. Proceed to next step to insulate center vents.
Board Monitor intermittently blanks out (follow steps 5-8)
5. Remove the center dash vents located above the Board Monitor.
6. Insulate the bottom of the vent ducts as shown to the left (1) using foam tape. Foam tape may be ordered under P/N 16 11 1 183 070 (100 x 25 x 6 mm). Also Wurth and 3M are good sources for foam tape.
7. Install foam tape on the edges of both center vent ducts as shown in the illustration.
8. Reinstall center vent and retest system for proper operation.
PARTS INFORMATION
Sound Systems, Cruise, Alarms, Monitors
October 2003
Service Engineering
SUBJECT
Board Monitor Screen Blanks Out
MODEL
E46 (3 Series) Convertible with Navigation System
SITUATION
The Board Monitor screen is blank or blanks out intermittently.
CAUSE
Moisture intrusion into the Board Monitor from condensation on the center vent ducts.
PROCEDURE
Board Monitor is currently blank (follow steps 1-8)
1. Remove the center vent and inspect the Board Monitor housing for water stains.
2. Check Power and Ground supply for the Board Monitor.
3. If wiring is good, and Board Monitor has water stains, then replace the Board Monitor.
4. Proceed to next step to insulate center vents.
Board Monitor intermittently blanks out (follow steps 5-8)
5. Remove the center dash vents located above the Board Monitor.
6. Insulate the bottom of the vent ducts as shown to the left (1) using foam tape. Foam tape may be ordered under P/N 16 11 1 183 070 (100 x 25 x 6 mm). Also Wurth and 3M are good sources for foam tape.
7. Install foam tape on the edges of both center vent ducts as shown in the illustration.
8. Reinstall center vent and retest system for proper operation.
PARTS INFORMATION
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.