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BMW 7 E23 (1977 - 1987) - fuse box diagram

avatar Jonathan Yarden Dec 17, 2020 · 5 min. read

In this article you will find a description of fuses and relays BMW, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Years: 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987

Fuse Box (up to 1982)

BMW 7 E23 - fuse box diagram

Fuse Ampere rating [A] Description
1 15 Fuel Delivery/Evaporative Control
Idle Speed Control
2 8 Headlights (RH Low Beam)
3 8 Headlights (LH Low Beam)
4 25 Cigar Lighters
5 8 Active Check Control
Auto-Charging Flashlight
Central Locking
Glove Box Light
Heated Door Lock
Ignition Key Warning/Seatbelt Warning
Interior Lights
Lights: Turn/Hazard Warning
On-Board Computer
Radio/Power Antenna
Trunk Light
6 8 Active Check Control
Backup Lights/Transmission Range Lights
Brake Lining Warning
Cruise Control
Dash Lights
Idle Speed Control
Interior Lights
Power Mirrors
Power Windows
Seatbelt Warning
Warning Indicators
7 8 Headlights (LH, RH High Beams)
8 8 Headlights (LH, RH High Beams)
9 8 Active Check Control
Dash Lights
Lights: Front Park/Tail/Underhood
Lights: Rear Marker/License
10 8 Active Check Control
Lights: Front Park/Tail
11 16 Active Check Control
Lights: Turn/Hazard Warning
12 8 Active Check Control
Radio/Power Antenna
Stoplights/Cruise Control
Warning Indicators
13 25 Rear Defogger/Sunroof
14 25 Automatic Heater-Air Conditioner
Auxiliary Fan
Vacuum Pump
15 8 Fog Lights (RH)
16 8 Fog Lights (LH)
17 25 Auxiliary Fan
R1 Fuel Pump Relay
R2 Auxiliary Fan Relay (Speed 1)
R3 Low Beam Check Relay
R4 Purge Valve Relay
R5 High Beam Relay
R6 Horn Relay
R7 Low Beam Relay
R8 Fog Light Relay
R9 Unloader Relay


Ampere ratting [A] Protected circuits
Auxiliary Fan Fuses(2) 25 Auxiliary Fan


Under Dash, Left Of Console

Ampere ratting [A] Protected circuits
Power Window Circuit Breaker 25 Power Windows


Ampere ratting [A] Protected circuits
In-Line Radio 25 Radio

Fuse Box (from 1982)

BMW 7 E23 - fuse box diagram

Fuse Ampere rating [A] Description
1 15 Headlights (Left High Beam, Right Low Beam)
2 15 Headlights (Right High Beam, Left Low Beam)
3 15 Auxiliary Fan 91° C (196° F)
4 15 Lights: Turn/Hazard Warning
5 30 Wiper/Washer, Windshield Washer Jet Heaters
6 7,5 Active Check Control, Stop Lights/Cruise Control/Map Light
7 15 Horn
9 15 Back Up Lights, Fuel Control (Engine Electrical Equipment)
10 7,5 Active Check Control, Brake Lining Warning, On-Board Computer, Seatbelt Warning, Service Interval Indicator, Speedometer/Gauges/Warning Indicators
11 15 Fuel Delivery (Main and Auxiliary Fuel Pump)
12 7,5 Active Check Control, On-Board Computer, Radio (Radio In-Line Fuse), Warning Indicators
13 7,5 Headlights (Left Low Beam)
14 7,5 Headlights (Right Low Beam)
16 30 Auxiliary Fan, Vacuum Pump, Heater/Air Conditioning
17 15 Heater/Air Conditioning, Interior Lights, Power Mirrors, Power Windows, Seatbelt Warning, Stop Lights/Cruise Control, Windshield Washer Jet Heaters
18 30 Auxiliary fan 99° C (210° F)
19 30 Sunroof, Heated Seats
20 30 Hear Defogger
21 7,5 Active Check Control, Auto-Charging Flashlight, Gauges, Glove Box Light, interior Lights, On-Board Computer, Radio, Service Interval Indicator, Trunk Lights, Seat Belt Buzzer, Memory, Clock
22 7,5 Active Check Control, Lights: Front Park/Tail
23 7,5 Active Check Control, Rear Defogger, Lights: Front Park/Tail Underhood, Lights: Visor/Dash, Lights: Rear Marker, Lights: Turn/Hazard Warning, Engine Compartment Light, License Plate Lights
24 15 Lights: Turn/Hazard Warning, Open Door Buzzer
26 30 Power Seats, Power Windows
27 30 Central Locking, Heated Door Lock, On-Board Computer, Burglar Alarm
28 30 Cigar Lighter, Power Antenna (Radio In-Line Fuse)
29 7,5 Fog Lights (Left Fog Light)
30 7,5 Fog Lights (Right Fog Light)
32 30 Accessory Fuse (Not Used)
33 30 Accessory Fuse (Not Used)
R1 Fuel Pump Relay
R2 Wiper Control Unit
R3 Low Beam Check Relay
R4 Low Beam Relay
R5 High Beam Relay
R6 Horn Relay
R7 Auxiliary Fan Relay (Speed 1)
R8 Fog Light Relay
R9 Unloader Relay (Rear Window Defogger, Power Sliding Roof, Heated Seat)
R10 Auxiliary Fan Relay (Speed 2)
R11 Unloader Relay (Heater Blower)
R12 Oxygen Sensor Heater Relay


Ampere ratting [A] Protected circuits
Power Window Circuit Breaker 25 Power Windows

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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