BMWCCT台灣車主聯誼會 - 請教變速箱故障碼

P0740 扭力轉換器閉鎖裝置故障
P2761 扭力轉換器的離合器壓力電磁閥控制線路斷路
P0741 扭力轉換器打滑

BMW原廠在2008/02有出SI 24 03 06的技術通報
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SUBJECT
ZF 5HP19 Transmission - Diagnosis of EGS FC 048 (30 hex)

MODEL
E46: 323i, 325i, 330i with M52TU, M54, M56 and ZF 5HP19

E39: 525i, 530i with M54 and ZF 5HP19

E85: Z4 roadster 2.5, 3.0 with M54 and ZF 5HP19

SITUATION
"Service Engine Soon" is illuminated and fault code 048 "Converter lock-up excessive slip" (30 hex or P0741) is stored in the EGS transmission control module.

CAUSE
Possible cause: deterioration of the torque converter turbine shaft seal

PROCEDURE

Remove the torque converter. For the removal procedure, refer to Repair Manual RA24 40 002.
http://www.bmwcct.com.tw/forums/atta...1&d=1402972830 http://www.bmwcct.com.tw/forums/atta...1&d=1402972830
2. Drain the fluid out of the torque converter, and carefully inspect the turbine shaft seal (1) INSIDE THE BOTTOM OF THE TORQUE CONVERTER for signs of damage (cracks, splits, etc.).Helpful Hints:
3. Use a small flashlight to illuminate inside the bottom of the torque converter to examine the turbine shaft seal. The turbine seal is brownish orange in color and measures approximately 1" in diameter.
If evidence of seal deterioration is found, replace the torque converter.

Additionally, if the transmission fluid shows signs of deterioration ("dirty fluid"), the fluid should be replaced in conjunction with the fluid strainer. For the strainer replacement procedure, refer to Repair Manual RA24 31 151.

Refill and/or top off the fluid level according to Repair Manual RA 00 11 500, using ESSO ATF LT 71141 (P/N 83 22 9 407 807).

If after careful inspection it appears that the turbine seal is intact, contact Automatic Transmission Enhanced Technical Support (TeileClearing) for further diagnostic instructions. Submit the "regular technical support" PuMA case, referencing SI B24 03 06 in its title.

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.

Please refer to the latest KSD for the appropriate model applicable labor allowances.

Defect Code
24 40 02 61 00

Labor Operation
24 40 002
Main Work*

Replace torque converter

or

Labor Operation
+24 40 502
Replace torque converter

*Main Work:
Use this labor operation number when this is the only repair being performed, or if this is the main repair when performed along with other repairs at the same time. If this is not the main repair, refer to KSD for the associated (+) labor operation code.