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 DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSFUEL TANK LEAK DETECTION - DMTL TEST PLAN ERROR
2001 BMW 330Ci Convertible (E46) L6-3.0L (M54)
Fuel Tank Leak Detection - DMTL Test Plan Error
2001 BMW 330Ci Convertible (E46) L6-3.0L (M54)SECTION Fuel Tank Leak Detection - DMTL Test Plan Error
GROUP 12
Engine Electrical
Bulletin Number
12 07 00
Woodcliff Lake, NJ
June 2000
Service Engineering
SUBJECT:
DMTL Test Plan Error
MODEL:
All with M54 / MS43
Situation:
When performing the DMTL test plan for tank leak detection, the message "LEA DETECTED" is displayed at the conclusion of the test. Although this statement displayed, the system may be functioning correctly.
Cause:
DIS/MoDic software error in CD 21.1 and CD 22.
Correction:
After performing the Diagnosis Module - Fuel Tank Leakage , one of the three following statements may appear at the conclusion of the test:
1. "Function test of fuel tank leakage diagnosis module completed successfully Leak Detected."
If this statement is displayed, check the DME for fault codes after performing the test module. If no "tank ventilation" faults are present, the DMTL test has passed, no system leakage.
2. "Function test of fuel tank leakage diagnosis module not possible: Major Leak Detected."
If this statement is displayed, check the DME for fault codes after performing the test module. If "tank ventilation" faults are present, the DMTL test has detected a large leak. Continue diagnosing the system to locate the leak.
3. "Function test of fuel tank leakage diagnosis module not possible: Minor Leak Detected"
If this statement is displayed, check the DME for fault codes after performing the test module. If "tank ventilation" faults are present, the DMTL test has detected a small leak. Continue diagnosing the system to locate the leak.
After locating and repairing the leak, perform the DMTL test. If the system has been successfully corrected, the results of the DMTL will be as describe in # 1 (above).
WARRANTY INFORMATION: For information only.
Engine Electrical
Bulletin Number
12 07 00
Woodcliff Lake, NJ
June 2000
Service Engineering
SUBJECT:
DMTL Test Plan Error
MODEL:
All with M54 / MS43
Situation:
When performing the DMTL test plan for tank leak detection, the message "LEA DETECTED" is displayed at the conclusion of the test. Although this statement displayed, the system may be functioning correctly.
Cause:
DIS/MoDic software error in CD 21.1 and CD 22.
Correction:
After performing the Diagnosis Module - Fuel Tank Leakage , one of the three following statements may appear at the conclusion of the test:
1. "Function test of fuel tank leakage diagnosis module completed successfully Leak Detected."
If this statement is displayed, check the DME for fault codes after performing the test module. If no "tank ventilation" faults are present, the DMTL test has passed, no system leakage.
2. "Function test of fuel tank leakage diagnosis module not possible: Major Leak Detected."
If this statement is displayed, check the DME for fault codes after performing the test module. If "tank ventilation" faults are present, the DMTL test has detected a large leak. Continue diagnosing the system to locate the leak.
3. "Function test of fuel tank leakage diagnosis module not possible: Minor Leak Detected"
If this statement is displayed, check the DME for fault codes after performing the test module. If "tank ventilation" faults are present, the DMTL test has detected a small leak. Continue diagnosing the system to locate the leak.
After locating and repairing the leak, perform the DMTL test. If the system has been successfully corrected, the results of the DMTL will be as describe in # 1 (above).
WARRANTY INFORMATION: For information only.
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.