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 MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1316 (AUTOMATIC TRANSMISSION - REPAIR - F01/F02)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
Section 1316 (Automatic Transmission - Repair - F01/F02)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION Section 1316 (Automatic Transmission - Repair - F01/F02)
WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2014 BMW Alpina B7L, 2014 BMW Alpina B7, and 2013 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
- General And Safety Information
- 00 Safety instructions for handling oil
- 24 00... Overview of transmission housing (GA6HP26Z, GA8HP45Z, GA8HP70Z)
- 24 00 018 Adjusting gear lever (parking lock emergency release)
- 00 11 237 Checking/topping up oil level in automatic transmission (GA6HP19Z) (N54)
- 00 11 500 Checking/topping up oil level in automatic transmission (GA6HP26Z) (N63)
- 00 11 500 Checking/topping up oil level in automatic transmission (GA8HP45Z, GA8HP70Z) (N55, N63)
- 24 00 050 Installing replacement transmission (GA6HP19Z) (N54)
- 24 00 043 Installing replacement transmission (GA6HP26Z) (N63)
- 24 00 054 Installing exchange transmission (GA8HP45Z) (N55)
- 24 00 055 Installing exchange transmission (GA8HP70Z) (N63)
- 24 00 030 Removing and installing automatic transmission (GA6HP19Z) (N54)
- 24 00 023 Removing and installing automatic transmission (GA6HP26Z) (N63)
- 24 00 033 Removing and installing automatic transmission (GA8HP45Z) (N55)
- 24 00 034 Removing and installing automatic transmission (GA8HP70Z) (N63)
- 23 Transmission designations
- 23... Universal BMW transmission take-up
- 23..... Universal transmission retaining bridge
- Transmission Case, Oil Sump
- 24 11 011 Removing and installing/sealing or replacing transmission oil sump (GA6HP19Z) (N54)
- 24 11 010 Removing and installing/sealing or replacing transmission sump (GA6HP26Z) (N63)
- 24 11 014 Removing and installing/sealing or replacing transmission oil sump (GA8HP45Z) (N55)
- 24 11 015 Removing and installing/sealing or replacing transmission oil sump (GA8HP70Z) (N63)
- Extension Housing, Bearings, Seal
- Mechanical Attachments
- Hydraulic/Electrical Control Components/Elements
- Oil Pump
- 24 31 575 Replacing O-ring on oil pump (GA6HP19, GA6HP26Z) (N54, N63)
- 24 31 011 Replacing torque converter shaft seal (GA6HP19Z) (N54)
- 24 31 010 Replacing torque converter shaft seal (GA6HP26Z) (N63)
- 24 31 013 Replacing torque converter radial shaft seal (GA8HP45Z) (N55)
- 24 31 564 Replacing torque converter shaft seal (GA8HP70Z) (N63)
- Shift Valves, Parking Lock
- 24 34... Unlock transmission lock electronically
- 24 34... Manual emergency release of transmission lock
- 24 34... Manually releasing parking lock (from vehicle underbody) - GA6HP transmission
- 24 34... Manually releasing parking lock (from vehicle underbody) - GA8HP transmission
- 24 34... Notes on Mechatronics (GA6HP19Z, GA6HP26)
- 24 34... Notes On Mechatronics (GA8HP45Z, GA8HP70Z)
- 24 34... Release transmission lock electronically
- 24 34 562 Replacing Mechatronics (GA6HP19Z TU) (N54)
- 24 34 561 Replacing Mechatronics (GA6HP26Z TU) (N63)
- 24 34 564 Replacing Mechatronics (GA8HP45Z) (N55)
- 24 34 565 Replacing Mechatronics (GA8HP70Z) (N63)
- 24 34 021 Replacing sealing sleeve for transmission housing (GA6HP19Z) (N54)
- 24 34 020 Replacing sealing sleeve for transmission housing (GA6HP26Z) (N63)
- 24 34 022 Replacing sealing cup for transmission housing (GA8HP45Z) (N55)
- 24 34 023 Replacing sealing sleeve for transmission housing (GA8HP70Z) (N63)
- Torque Converter
- Shift Function
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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.