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 DIAGNOSISSPECIFICATIONSFLUID TYPE SPECIFICATIONSCOOLANT
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Coolant
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Coolant
COOLANT TYPE
The cooling system of BMW cars must only be filled with reputable brand name ethylene glycol long-term antifreeze having corrosion inhibitors that are compatible with aluminum radiators.
BMW Anti-Freeze/Coolant contains no nitrites or phosphates and has been formulated to prevent excessive silicate drop-out. BMW Part No.82 14 1 467 704.
Note:
Do not mix BMW Anti-Freeze/Coolant with different antifreezes which contain nitrites and/or phosphates and a high silicate formulation.
Initial Filling
Down to -34°F (-37°C). Antifreeze ratio of 50% antifreeze and 50% water.
Down to -62°F (-52°C). Antifreeze ratio of 60% antifreeze and 40% water.
Note:
Do not exceed a 60% ratio of antifreeze.
The cooling system of BMW cars must only be filled with reputable brand name ethylene glycol long-term antifreeze having corrosion inhibitors that are compatible with aluminum radiators.
BMW Anti-Freeze/Coolant contains no nitrites or phosphates and has been formulated to prevent excessive silicate drop-out. BMW Part No.82 14 1 467 704.
Note:
Do not mix BMW Anti-Freeze/Coolant with different antifreezes which contain nitrites and/or phosphates and a high silicate formulation.
Initial Filling
Down to -34°F (-37°C). Antifreeze ratio of 50% antifreeze and 50% water.
Down to -62°F (-52°C). Antifreeze ratio of 60% antifreeze and 40% water.
Note:
Do not exceed a 60% ratio of antifreeze.
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.