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 MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSSERVICE TESTER - SOFTWARE REVISION
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Service Tester - Software Revision
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Service Tester - Software Revision
87BMW03
GROUP 00 Maintenance and - General Data
Bulletin Number 00 24 87 (1520) Page 1 of 1
Montvale, NJ November 1987 Technical Dept.
SUBJECT: BMW Service Tester Diskette Version No. 2.1
Situation: A revised and expanded version of the Service Tester software has been developed.
Some of the systems found on the previous version Diskette No. 2 dated 1/87 have been improved along with the addition of the new systems found on certain 1988 models. See the back side of this S.I. for applications.
NOTE: DO NOT DISCARD Diskette No. 2 dated 1/87 (P/N 01 57 9 780 547). This diskette is still necessary for the systems not included in this new Diskette No. 2.1. Presently, both disks will have to be utilized to cover all components found in the vehicles.
Both disks cannot be placed into the Service Tester at the same time. If it is necessary to switch from one disk to another, the Service Tester must be switched OFF before removing the disk. The new disk can then be inserted and the Service Tester switched ON.
A new disk is presently being developed to consolidate both disks into one.
Note: 750iL only - while in DME, defect 23 - Oxygen Sensor Heating Relay, Cylinders 7 . . . 12 will be displayed. Disregard this defect as this vehicle only has one Oxygen Sensor Heating Relay which is monitored by the DME for cylinders 1-6.
One copy of Diskette Version No. 2.1 is being sent to you under the Automatic Tool Shipment Program attached to this SI.
Additional disks can be ordered through your Parts Distribution Center under P/N 01 57 9 781 247.
GROUP 00 Maintenance and - General Data
Bulletin Number 00 24 87 (1520) Page 1 of 1
Montvale, NJ November 1987 Technical Dept.
SUBJECT: BMW Service Tester Diskette Version No. 2.1
Situation: A revised and expanded version of the Service Tester software has been developed.
Some of the systems found on the previous version Diskette No. 2 dated 1/87 have been improved along with the addition of the new systems found on certain 1988 models. See the back side of this S.I. for applications.
NOTE: DO NOT DISCARD Diskette No. 2 dated 1/87 (P/N 01 57 9 780 547). This diskette is still necessary for the systems not included in this new Diskette No. 2.1. Presently, both disks will have to be utilized to cover all components found in the vehicles.
Both disks cannot be placed into the Service Tester at the same time. If it is necessary to switch from one disk to another, the Service Tester must be switched OFF before removing the disk. The new disk can then be inserted and the Service Tester switched ON.
A new disk is presently being developed to consolidate both disks into one.
Note: 750iL only - while in DME, defect 23 - Oxygen Sensor Heating Relay, Cylinders 7 . . . 12 will be displayed. Disregard this defect as this vehicle only has one Oxygen Sensor Heating Relay which is monitored by the DME for cylinders 1-6.
One copy of Diskette Version No. 2.1 is being sent to you under the Automatic Tool Shipment Program attached to this SI.
Additional disks can be ordered through your Parts Distribution Center under P/N 01 57 9 781 247.
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.