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 MANUALSBMW1994318IS (E36) L4-1796CC 1.8L DOHC (M42)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSBY SYMPTOMHARD SHIFTINGA/T - EGS/AGS CONTROL MODULE EPROM REPLACEMENTA. PREPARATORY EPROM REPLACEMENT INSTRUCTIONS
1994 BMW 318is (E36) L4-1796cc 1.8L DOHC (M42)
A. Preparatory EPROM Replacement Instructions
1994 BMW 318is (E36) L4-1796cc 1.8L DOHC (M42)SECTION A. Preparatory EPROM Replacement Instructions
The installation of the updated EPROM into the engine control module is a simple procedure.
However, before beginning the EPROM exchange the following conditions must be provided and the designated tools must be used.
ENVIRONMENT
The work area where the EPROM is exchanged must be free of excessive dust and aggressive chemicals or vapors. A small uncarpeted office within the dealership is recommended. Since low atmospheric humidity promotes static electricity, an evaporating bowl of water can be used to raise the humidity level of the work area.
EQUIPMENT
Screwdriver (blade type) is used to open and close the control module. The EPROM is exchanged using an IC extractor/inserter set. Tool set can be obtained locally (Radio Shack, Archer # 276- 1581).
STATIC ELECTRICITY
The engine control module can be damaged and rendered unusable by static electrical discharge. For this reason the 3M static protection kit or equivalent) must be used and properly grounded during the entire EPROM exchange procedure.
EPROM STORAGE
Replacement EPROMs must be stored in the original shipment containers. The label in the center of the EPROM must never be removed.
However, before beginning the EPROM exchange the following conditions must be provided and the designated tools must be used.
ENVIRONMENT
The work area where the EPROM is exchanged must be free of excessive dust and aggressive chemicals or vapors. A small uncarpeted office within the dealership is recommended. Since low atmospheric humidity promotes static electricity, an evaporating bowl of water can be used to raise the humidity level of the work area.
EQUIPMENT
Screwdriver (blade type) is used to open and close the control module. The EPROM is exchanged using an IC extractor/inserter set. Tool set can be obtained locally (Radio Shack, Archer # 276- 1581).
STATIC ELECTRICITY
The engine control module can be damaged and rendered unusable by static electrical discharge. For this reason the 3M static protection kit or equivalent) must be used and properly grounded during the entire EPROM exchange procedure.
EPROM STORAGE
Replacement EPROMs must be stored in the original shipment containers. The label in the center of the EPROM must never be removed.
RENDER: 1.0x
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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.