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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBMW1993740IL (E32/2) V8-3982CC 4.0L DOHC (M60)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSMAIN RELAY (COMPUTER/FUEL SYSTEM)DESCRIPTION AND OPERATION
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Main Relay (Computer/Fuel System): Description and Operation
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Description and Operation
OPERATION
The Digital Motor Electronic (DME) main relay is activated by the DME control unit as of ignition "ON". After shutting down the engine, the relay remains on for a further 3 sec. in order to avoid post-ignition.
The Digital Motor Electronic (DME) main relay is activated by the DME control unit as of ignition "ON". After shutting down the engine, the relay remains on for a further 3 sec. in order to avoid post-ignition.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.