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 DIAGNOSISMAINTENANCESERVICE INTERVALSCONDITION/INDICATOR BASED MAINTENANCE SERVICESINDICATOR BASED SERVICEINDICATED ENGINE OIL SERVICE
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Indicated Engine Oil Service
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Indicated Engine Oil Service
"W" INDICATES SERVICE TO MAINTAIN WARRANTY
W Engine Oil & Filter Replace SF,SG
Steering Check
Brake, Service Check HB
(check pads and discs, add fluid if needed)
Brake, Parking Check/Adjust
Lighting, Interior Check
(including ABS & SRS warning lamps)
Lighting, Exterior Check
(adjust headlamps if necessary)
Drive Belts Check/Adjust
Windshield Wipers/Washers Check/Adjust
Windshield Washer Fluid Check
(check concentration and level)
Intensive Cleanser Check
(if equipped, check concentration and level)
Seat Belts Check
Tires Check
(check wear pattern and air pressure, including spare)
Cassette Tape Unit Clean
Fuel Injectors Clean
(use on-vehicle cleaning method as needed)
Test Drive Check
(check for vehicle operation and safety items)
W Service Indicator Reset
(requires special tool)
KEY TO LUBRICANTS
ATF DEXRON-II Automatic Transmission Fluid
CD Motor Oil, API Service CD
EC Ethylene Glycol Coolant. Mix with water for desired freeze protection
GL-4 Gear Oil, API Service GL-4
GL-5 Gear Oil, API Service GL-5
GL-5* Special Lubricant for Limited-Slip Differential
GL-S Gear Lubricant, Special. Mobil SCH 630, synthetic lubricant
HB Hydraulic Brake Fluid, DOT 4
LM Lithium Multipurpose Grease
MO Motor Oil
SF Motor Oil, API Service SF
SG Motor Oil, API Service SG
SLF Special Lubricant, Fluid. BMW Part No. 81229407549
WB Wheel Bearing Grease
W Engine Oil & Filter Replace SF,SG
Steering Check
Brake, Service Check HB
(check pads and discs, add fluid if needed)
Brake, Parking Check/Adjust
Lighting, Interior Check
(including ABS & SRS warning lamps)
Lighting, Exterior Check
(adjust headlamps if necessary)
Drive Belts Check/Adjust
Windshield Wipers/Washers Check/Adjust
Windshield Washer Fluid Check
(check concentration and level)
Intensive Cleanser Check
(if equipped, check concentration and level)
Seat Belts Check
Tires Check
(check wear pattern and air pressure, including spare)
Cassette Tape Unit Clean
Fuel Injectors Clean
(use on-vehicle cleaning method as needed)
Test Drive Check
(check for vehicle operation and safety items)
W Service Indicator Reset
(requires special tool)
KEY TO LUBRICANTS
ATF DEXRON
CD Motor Oil, API Service CD
EC Ethylene Glycol Coolant. Mix with water for desired freeze protection
GL-4 Gear Oil, API Service GL-4
GL-5 Gear Oil, API Service GL-5
GL-5* Special Lubricant for Limited-Slip Differential
GL-S Gear Lubricant, Special. Mobil SCH 630, synthetic lubricant
HB Hydraulic Brake Fluid, DOT 4
LM Lithium Multipurpose Grease
MO Motor Oil
SF Motor Oil, API Service SF
SG Motor Oil, API Service SG
SLF Special Lubricant, Fluid. BMW Part No. 81229407549
WB Wheel Bearing Grease
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.