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.DBβ LIVE
HOMESERVICE MANUALSBMW1987L7 (E23) L6-3430CC 3.4L SOHC (M30)REPAIR AND DIAGNOSISMAINTENANCESERVICE INTERVALSCONDITION/INDICATOR BASED MAINTENANCE SERVICESINDICATOR BASED SERVICEINDICATED INSPECTION SERVICE I
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Indicated Inspection Service I
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Indicated Inspection Service I
"W" INDICATES SERVICE TO MAINTAIN WARRANTY
W Engine Oil & Filter Replace SF,SG
Transmission, automatic Change Fluid ATF
(Replace strainer & gasket)
Transmission, manual Check Level
(325iX also check transfer case)
Final drive Check Level
(325iX also check front axle)
Fuel Tank, Lines & Connections Check
Steering Gear Check Level ATF
(Other fluid type may be required, See affixed label)
Battery Check/Fill
Brake Reservoir Check Level HB
(Change brake fluid every 2 years)
Brake Pads Inspect
(disc & drum, replace parts as needed)
Brake system Inspect
(Inspect connections and lines for leaks, damage & incorrect positioning)
Hand Brake Inspect/Adjust
(Check shoes & cables for wear, adjust & lube)
Clutch Reservoir Check Level HB
Cooling System Inspect/Fill EC
(Inspect hoses & tighten clamps, test concentration of coolant & top off)
Windshield Wipers/Washers Check/Adjust
Windshield Washer Fluid Check
(check concentration and level)
Intensive Cleanser Check
(if equipped, check concentration and level)
Throttle Linkage Lubricate LM
Drive Belts Check/Adjust
Diagnostic System Readout Check
W Valve clearance Check/Adjust
(exc. M70 V12 engine)
Fuel injectors Clean
(Also clean carbon from intake valves as necessary)
Air conditioner Check/Tighten
(Tighten compressor mounts, check system operation & charge)
Suspension Inspect
(If equipped with self-leveling suspension, check oil level)
Exhaust system Inspect/Tighten
(Inspect for damage, retorque manifold)
Lighting, Interior Check
Lighting, Exterior Check
(adjust headlamps if necessary)
Seat Belts Check
Tires Check
(check wear pattern and air pressure, including spare)
Door, Hood, Trunk Hinges Tighten/Lube MO
Door, Hood, Trunk Latches Lubricate LM
Sunroof Slides Lubricate
Cassette Tape Unit Clean
Test Drive Check
(Check for vehicle operation and safety items. Make sure that ABS/SRS & "Check Engine" lamps work, if equipped)
W Service Indicator Reset
(requires special tool)
SRS Front Sensor Ground Connections Check
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
Transmission, automatic Change Fluid ATF
(Replace strainer & gasket)
Transmission, manual Check Level
(325iX also check transfer case)
Final drive Check Level
(325iX also check front axle)
Fuel Tank, Lines & Connections Check
Steering Gear Check Level ATF
(Other fluid type may be required, See affixed label)
Battery Check/Fill
Brake Reservoir Check Level HB
(Change brake fluid every 2 years)
Brake Pads Inspect
(disc & drum, replace parts as needed)
Brake system Inspect
(Inspect connections and lines for leaks, damage & incorrect positioning)
Hand Brake Inspect/Adjust
(Check shoes & cables for wear, adjust & lube)
Clutch Reservoir Check Level HB
Cooling System Inspect/Fill EC
(Inspect hoses & tighten clamps, test concentration of coolant & top off)
Windshield Wipers/Washers Check/Adjust
Windshield Washer Fluid Check
(check concentration and level)
Intensive Cleanser Check
(if equipped, check concentration and level)
Throttle Linkage Lubricate LM
Drive Belts Check/Adjust
Diagnostic System Readout Check
W Valve clearance Check/Adjust
(exc. M70 V12 engine)
Fuel injectors Clean
(Also clean carbon from intake valves as necessary)
Air conditioner Check/Tighten
(Tighten compressor mounts, check system operation & charge)
Suspension Inspect
(If equipped with self-leveling suspension, check oil level)
Exhaust system Inspect/Tighten
(Inspect for damage, retorque manifold)
Lighting, Interior Check
Lighting, Exterior Check
(adjust headlamps if necessary)
Seat Belts Check
Tires Check
(check wear pattern and air pressure, including spare)
Door, Hood, Trunk Hinges Tighten/Lube MO
Door, Hood, Trunk Latches Lubricate LM
Sunroof Slides Lubricate
Cassette Tape Unit Clean
Test Drive Check
(Check for vehicle operation and safety items. Make sure that ABS/SRS & "Check Engine" lamps work, if equipped)
W Service Indicator Reset
(requires special tool)
SRS Front Sensor Ground Connections Check
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
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.