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 MANUALSBMW1987L7 (E23) L6-3430CC 3.4L SOHC (M30)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSRELAYS AND MODULES - TRANSMISSION AND DRIVETRAINRELAYS AND MODULES - A/TCONTROL MODULESERVICE AND REPAIR
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Control Module: Service and Repair
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Service and Repair
Removing and Installing/Replacing EH Control Unit
The control Unit for the EH transmission is located in the left A pillar.
- Remove cover for radio speaker.
- Pull off speaker wires.
- Pull off plug (1) on control unit.
Caution!
- Plug (1) may only be disconnected or connected with the ignition turned off.
Remove control unit.
Control Unit Identification:
735i Bosch No.0 260 002 007 Letter Code F
The control Unit for the EH transmission is located in the left A pillar.
- Remove cover for radio speaker.
- Pull off speaker wires.
- Pull off plug (1) on control unit.
Caution!
- Plug (1) may only be disconnected or connected with the ignition turned off.
Remove control unit.
Control Unit Identification:
735i Bosch No.0 260 002 007 Letter Code F
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.