Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
Make
Category
Subcategory
Condition
In Stock
Price
Part no. 9145158
BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 9145158
£56.95
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 7616698
Mini Cooper R55 R56 R57 R58 R59 R60 R61 Starter Motor 7616698
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6950131
BMW X3 E83 Z4 E85 Front Rear Door Mid-range Audio Loudspeaker 6950131
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 3454818
Mini Cooper R57 R57N LCI Cabrio Convertible Top Module Roof 3454818
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6960259
BMW 1 3 SERIES E81 E82 E87 E90 E91 E92 E93 Flat Cable Wiring Wire CAS Start Stop
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 7296090
BMW Z4 F30 F31 E89 Headlight Ballast Control Unit Xenon Light 7296090
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£13.95
£13.25
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Part no. 3450085
PDC Control Unit Mini R55 R56 R57 R58 R60 R61 Parking Sensor Module 3450085
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£13.95
£13.25
Free delivery: Feb 03
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Part no. 9216468
BMW F10 F11 F20 F30 F31 Front Seat Heating Control Module ECU 9216468
Promo price
£13.95
£13.25
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Part no. 6976890
Radio Boost CD Mini R50 R52 R53 Audio Player Head Unit 6976890
£28.95
Free delivery: Feb 03
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Part no. 7181313
BMW X1 E84 E90 E91 Door Handle LED Light Lighting Left N/S 7181313
Promo price
£13.95
£13.25
Free delivery: Feb 03
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Part no. 9215952-1
BMW E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 9215952
£13.95
Free delivery: Feb 03
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Part no. 9166708-1
BMW E92 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
£56.95
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. rhd-7570534
BMW 1 3 Series E81 E90 120i 320i N43 Engine Wiring Loom Harness 7570534 7570540
Promo price
£37.95
£32.26
Free delivery: Feb 03
If paid before 14:00
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Part no. 9207913
BMW F20 F21 F22 F30 F31 F32 F33 F36 G30 Fan Motor Relay 9207913
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 6977427
BMW E87 E90 E91 Mini Cooper R50 R52 R53 Air Module Control Unit ECU 6977427
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£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 9211494
BMW E88 Cabrio Convertible Folding Top Roof ECU Module CVM6 9211494
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 3416765
Mini Cooper One R56 Antenna Amplifier Aerial Diversity Module 3416765
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£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
Part no. 4M0035507
Audi A3 8V A4 B9 Telephone Antenna Amplifier Module Unit Booster 4M0035507
£13.95
Free delivery: Feb 03
If paid before 14:00
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Part no. 9187539
BMW E87 LCI Body Control Module ECU H2 Junction Box 9187539
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 6980020
BMW E63 E64 Rain Light Sensor Control Unit Module HUD 6980020
Promo price
£47.95
£40.76
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9337656
Mini Cooper One F55 F56 F57 Sensor For Pedestrian Protection PTS 9337656
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 6777641-1
Air Module Wiring BMW X5 E70 E81 E87 E90 E91 E92 E93 Steering Wheel Loom
Promo price
£23.95
£20.36
Free delivery: Feb 03
If paid before 14:00
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Part no. 6956746
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Monaco Blue A35 6956746
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 6887752
ICM Air Module BMW F20 F21 F22 F30 F31 Control Unit ECU 6887752
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
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Part no. 3453634
Stereo Head Unit Mini Cooper One R55 R56 R57 Radio Boost CD Player 3453634
Promo price
£66.95
£56.91
Free delivery: Feb 03
If paid before 14:00
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Part no. 9224872
BMW 1 2 3 4 Series F20 F21 F30 F80 Cover Power Distribution Fuse Box 9224872
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 6937223
BMW E60 E61 E65 X5 E70 X6 E71 Control Unit Xenon Light 5DV 009 000-00
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6906600
Fuse Box Mini Cooper R50 R52 R53 JCW Housing 1509011
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 7237647
BMW E90 LCI F01 F10 F11 F20 F21 Control Unit Xenon Light 7237647
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 3413318
BMW E83 Light Control Module Lear LM MAN.LWR 3413318 61313413318
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 3451925
Mini Cooper One R56 High SPEG DC/DC M3 Fuse Distribution Box 3451925
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 6962296
BMW E81 E87 E88 E89 E90 E91 E92 E93 Radio Business CD 6962296
Promo price
£42.95
£36.51
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9274428
Mini Cooper F54 F55 F56 F57 F60 PDC Parking Sensor Ultrasonic Black 9274428
Promo price
£23.95
£20.36
Free delivery: Feb 03
If paid before 14:00
Part no. 8514120
Preheating Control BMW F20 F21 F30 F31 LCI B47 Glow Plug Unit Diesel 8514120
£13.95
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9177981
BMW E90 ECU Body Control Module H1 PL2 JBBFE2 9177981
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9252639
Parking Module BMW E81 E84 E87 E90 E91 Control Unit PDC 9252639
Promo price
£47.95
£40.76
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9125224
BMW 1 3 SERIES E87 E90 E91 Control Unit Airbag ECU NO CRASH DATA 9125224
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9284594
BMW 1 2 Series F20 F21 F30 F30 Mini F56 Front Seat Sensor Mat Left N/S 9284594
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6926459
BMW X1 E81 E82 E84 E87 E88 E90 E91 E92 Climate Control Solar Sensor 6926459
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 8377488
BMW E46 E39 E53 E83 E85 Switch Unit Steering Column 8377488
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6936649
BMW 1 3 X1 Series E81 E84 E87 E90 E91 LCI Power Distribution Box Black 6936649
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6917548
Mini R50 R53 Rear PDC Ultrasonic Parking Sensor Pure Silver Metallic 900
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. A0009820412
Mercedes W176 W205 W212 Voltage Converter Power Distributor Plug A0009820412
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9319081
BMW F20 F21 F22 F30 F31 F32 Radio Remote Control Receiver 434 MHZ
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 7569969
BMW X5 X6 E70 E71 Control Unit Module Transfer Box 7569969
Promo price
£66.95
£56.91
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 3452677
Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM II 3452677
Promo price
£132.95
£113.01
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6906604
Mini Cooper One R50 R52 R53 Power Distribution Fuse Box Front 6906604
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 8706502
BMW 1 3 4 Series F20 F21 F30 F31 Radio Remote Control Receiver 434 MHZ 8706502
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 1378238
BMW E60 E63 E87 E90 E91 Relay Make Contact Orange 1378238
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9151979
BMW E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC
Promo price
£37.95
£32.26
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 8375408
BMW X5 E39 E53 Steering Column Wiper Switch Stalk 8375408
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 1388911
BMW E36 E38 E21 E85 R52 R57 Change-Over Contact Relay Violet 1388911
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 7640508-2
BMW 1 3 4 Series F20 F21 F30 F31 F32 F33 Cooling Fan Control Unit Radiator
Promo price
£28.95
£24.61
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 8K0959651
Audi A5 8T A4 B8 Crash Impact Sensor Control Unit 8K0959651
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9296494
BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 9187536
BMW 3 Series E90N E90 LCI ECU Body Control Module H1 61359187536 9187536
Promo price
£23.95
£20.36
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6921593
MINI Cooper One R50 R53 Wave Radio Cassette Headunit Tape Player 6921593
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 7356250
BMW E92 LCI Coupe Mini R56 R57 Xenon Headlight Ballast Headlamp Control 7356250
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9174261
BMW E60 E87 E90 Telematics Bluetooth Control Unit Module ECU 9174261
Promo price
£23.95
£20.36
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 1K0909606C
Crash Impact Sensor Volkswagen Golf Audi A4 Q7 A6 C6 Air Module Unit 1K0909606C
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9812535
Mini Cooper Countryman R60 Fuse Distribution Box Module 9812535
Promo price
£123.95
£105.36
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. A0018204535
Microphone Mercedes W639 W906 Hands-Free Interior Mic Unit A0018204535
Promo price
£32.95
£28.01
Free delivery: Feb 03
If paid before 14:00
-40%
Part no. 9123290
BMW E81 E87 E90 MULF Hands Free Electronics Control Module 9123290
Promo price
£61.95
£37.17
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 6929715
BMW 1 Series E81 E87 E87N Positive Battery Lead Cable 61126929715 6929715
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 5Q0959651
Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 7573029
Mini Cooper R55 R56 IBS Negative Battery Lead Cable
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 7552105
Mini Cooper One R55 R56 R58 Petrol Engine Starter Motor N12 7540897
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-40%
Part no. 3450435
Mini Cooper One R56 High SPEG H1 Fuse Distribution Box 3450435
Promo price
£32.95
£19.77
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 3449504
Mini Cooper One R55 R56 Electrical System Fuse Distribution Box 3449504
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 4F0915519
Volkswagen Polo Touareg Audi A4 A6 A7 A8 Battery Overload Protection 4F0915519
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9187625
Bluetooth Module BMW E87 LCI E90 Hands Free High MULF2 9187625
Promo price
£32.95
£28.01
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. A0009820212
Mercedes W176 W212 W246 Voltage Converter Inverter Power Distributor A0009820212
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 8379375
BMW X5 E53 Loudspeaker Loud Speaker Tweeter Front 65138379375 8379375
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9221861
BMW E90 E91 E93 LCI Front Left Right N/O/S Seat Control Module ECU 9221861
Promo price
£42.95
£36.51
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9231091
Bluetooth Control BMW E60 E87 E90 Telematics Unit Module 9231091
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9145401
BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9345322
BMW F10 LCI ECU Body Control Module V2 Junction Box PL6 JBBFE III 9345322
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9270495
BMW X5 X6 5 6 Series E70 E71 F10 F11 F12 PDC Ultrasonic Sensor Black 9270495
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. 9134280
BMW E81 E82 E87 E90 E91 Air Module Control Unit No Crash Data 9134280
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-15%
Part no. 9116542
BMW E39 X5 E53 X3 E83 PDC Parking Distance Control Unit Active Module 9116542
Promo price
£18.95
£16.11
Free delivery: Feb 03
If paid before 14:00
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Part no. A0025422619-1
Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 6906614
Mini Cooper One R50 R52 R53 Power Distribution Fuse Box Front 6906614
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
-5%
Part no. rhd-A1665420418
Mercedes W212 Negative Cable Battery Terminal Wiring A1665420418
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 1508937
BMW Mini Cooper S One D R50 R52 R53 Negative Battery Cable Wire 1508937
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 8373946
BMW 3 Z4 Series E46 E85 E86 Cable Battery Negative
Promo price
£13.95
£13.25
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Part no. 6920279
BMW Mini Cooper One R50 R53 Aerial Base Roof Antenna 6920279
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£28.95
£17.37
Free delivery: Feb 03
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Part no. 8255704
BMW X3 X5 E53 E63 E83 Front Seat Belt Tensioner Buckle Connector Cable 8255704
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 6925964
BMW X3 E83 Drive For Window Lifter Motor Front Right O/S 6925964
Promo price
£18.95
£16.11
Free delivery: Feb 03
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Part no. 9807169
Mini Cooper One R56 R55 R58 R60 R61 Air Module Control Unit ECU 9807169
Promo price
£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
Part no. 9110887
BMW E90 E92 E93 Switch Cluster Steering Column Cruise Control 9110887
£32.95
Free delivery: Feb 03
If paid before 14:00
Part no. 9187539-1
BMW 1 Series E87 ECU Body Control Module H2 Junction Box PL2 JBBFE II 9187539
Product currently unavailable
-15%
Part no. 9142414
Mini R50 R52 R53 Radio Boost CD Player Head Unit 9142414
Promo price
£23.95
£20.36
Free delivery: Feb 03
If paid before 14:00
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Part no. 9240490
Battery Distribution Box BMW F01 F02 F10 F11 Power B+ Rear 9240490
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£13.95
£13.25
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Part no. 9329800
BMW 3 E91 ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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£89.95
£53.97
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Part no. 8366646
BMW 3 5 6 Series E60 E63 R50 R52 Relay Make Contact Orange 8366646
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£13.95
£13.25
Free delivery: Feb 03
If paid before 14:00
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Part no. 6940623
BMW 1 3 Series E81 E82 E84 E87 E90 E91 PDC Parking Ultrasonic Sensor Quartz Blue
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£13.95
£13.25
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Part no. 6850374
BMW 1 3 Series E81 E87 E88 E90 E91 E92 Accelerator Speed Sensor 6850374 6778421
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£13.95
£13.25
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Part no. A1725420023
Mercedes W176 W204 W246 Front Parking Sensor Display Control PDC A1725420023
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£13.95
£13.25
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Part no. 9286789
BMW E88 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9286789
Promo price
£66.95
£40.17
Free delivery: Feb 03
If paid before 14:00
Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .