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
-5%
Part no. 8W0959592H
Audi A4 B9 A5 F5 Front Door Module Control Unit ECU Passenger Side 8W0959592H
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 7556846
Battery Cable BMW E82 E90 E91 E92 N54 Alternator Starter Base B Cable 7556846
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9399247
BMW F20 F30 F31 F32 ECU Camera Module Based Drive Support
Promo price
PLN 112.95
PLN 107.30
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A1769052400-1
Mercedes W176 Pressure Crash Impact Sensor Control Module A1769052400
Promo price
PLN 284.95
PLN 199.47
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6905950
BMW X5 Series E53 Spoiler Dualband Antenna Amplifier Aerial 6905950
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9362848
BMW 1 3 Series F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module
Promo price
PLN 275.95
PLN 248.36
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9459673
Seat Module BMW X4 F26 F20 F30 Front Driver Side Control Unit ECU 7943747
Promo price
PLN 237.95
PLN 166.57
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9873895
BMW F40 Crash Control Unit Air Module ECU Continental 9873895
Promo price
PLN 474.95
PLN 332.47
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2048207385
Mercedes-Benz C W204 Front Left Door N/S Control Unit Module A2048207385
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A1775401910
Mercedes W177 Door Wiring Rear Door Left N/S Module Harness Cables A1775401910
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7795779
BMW 5 Series E60 E61 Cable Alternator Starter Base B 520d Diesel M47N2 7795779
Promo price
PLN 46.95
PLN 44.60
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2059005222
Seat Module Mercedes W205 W253 Memory Control Unit Passenger's Side A2059005222
Promo price
PLN 142.95
PLN 100.07
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2465401850
Prefuse Box Mercedes W176 OM607 Fuse Relay Control Unit A2465401850
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9805670-1
Mini R60 Countryman Window Lifter Motor Drive Front Right O/S Door 9804384
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 1S0919275-DGR
Audi A5 8T Parking Sensor Control Module Daytona Grey Metallic - Z7S 1S0919275
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 3450847
BMW X3 E83 LCI Cable Loom Door Passenger Side Wiring Harness 3450838
Promo price
PLN 100.95
PLN 95.90
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2641591400
Ignition Coil Mercedes W177 M260 Petrol Ignition Cable Connector A2641591400
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2059008304
Mercedes W205 SAM Module Rear Body Comfort Control Unit ECU A2059008304
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6799887
Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU 6799887
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2129006518
Door Module Mercedes W204 W207 W212 Front Right O/S Control Unit A2129006518
Promo price
PLN 42.95
PLN 38.66
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6956020-2
Mini Cooper One Convertible R52 Rear Bumper PDC Wiring Parking Sensor Loom Cable
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5Q0907530AF
Volkswagen Seat Skoda Audi Gateway Control Unit Module ECU 5Q0907530AF
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9383063
Mini Cooper F55 F56 Navigation DAB Head Unit Sat Nav Professional 9383063
Promo price
PLN 1,329.95
PLN 930.97
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9226333
BMW E93 ECU Body Control Module H3 Junction Box PL2RR JBBFE IIIR 9226333
Promo price
PLN 332.95
PLN 233.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8364542
BMW E46 X3 E83 Power Distribution Fusebox Cover Fuse Box 8364542
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2139003022
Door Module Mercedes W205 W213 X253 Rear Right Door Control Unit A2139003022
Promo price
PLN 94.95
PLN 66.47
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8589907
Supply Module BMW F40 F48 Mini F55 F56 F57 Integrated Z11 Control Unit 8589907
Promo price
PLN 61.95
PLN 55.76
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A0009055700
Mercedes W639 Brake Yaw Rate Sensor ECU A0009055700
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A1779003806
Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779003806
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A0061514401
Starter Motor Mercedes W204 W211 W212 OM642 Diesel Engine A0061514401
Promo price
PLN 123.95
PLN 86.77
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9317173
BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V1 9317173
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7798482
BMW E60 E61 Battery Alternator Cable Lead For Preheater System 7798482
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 24435922
GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Black Set 24435922
Promo price
PLN 56.95
PLN 51.26
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2229009708
Mercedes W205 Body Control Comfort Unit Module BCM Unit ECU A2229009708
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7P0907652
Yaw Sensor Audi Q7 4L Rotation Rate Unit Module 7P0907652
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7560377
Cable Alternator BMW E81 E82 E87 E88 E90 E91 LCI Starter B+ 7560377
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9134666
Seat Module BMW E87 E90 E91 E92 Control Unit ECU 9134666
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2118700110
Mercedes W219 Hood Bonnet Light Solar Sensor Module A2118700110
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9160189
BMW 1 Series E87 LCI ECU Body Control Module H2 ECU 9160189
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 8P0919475M
Audi A3 8P PDC Parking Assistance Distance Control Module Unit ECU 8P0919475M
PLN 189.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1K0909605AE
VW Volkswagen Scirocco Mk3 Air Module Control Unit ECU 1K0909605AE
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A9065450003
Fuse Cover Mercedes Sprinter W906 Box Trim Panel Lid Grey A6395450003
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1665400182-1
Mercedes C292 Fuse Box Cover Trim Panel Lid Black A1665400182
Promo price
PLN 184.95
PLN 175.70
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8594489
BMW X1 F48 Mini F55 F56 F57 Battery Cable Starter-Base B+ 8594489
Promo price
PLN 85.95
PLN 81.65
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2139065706-1
Fuse Box Mercedes W205 W213 Front Engine Compatment Relay Module A2139065706
Promo price
PLN 142.95
PLN 100.07
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9346799
BMW F01 F02 LCI F10 Diversity Aerial Antenna Amplifier DAB 9346799
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9316569
BMW X5 F15 Fuse Box Rear Relay Module Control Unit 9316569
Promo price
PLN 56.95
PLN 54.10
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 6836504
BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9119058
BMW E81 E87 E90 E91 Airbag Control Unit ECU NO CRASH DATA 9119058
Promo price
PLN 66.95
PLN 63.60
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9371131
Seat Control Unit BMW F30 F36 Front Seat Module Unit Controller ECU 9371131
Promo price
PLN 332.95
PLN 233.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9233009
BMW F33 F83 M4 Convertible DWA-Alarm System Module Unit ECU 9233009
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0025428719
Mercedes W176 W204 W207 W166 Relay 4 Pin Grey Hella A0025428719
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9359248
BMW MINI Cooper One F55 Cable Harness Door Right O/S Loom Driver Side 9359246
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1635408905
Mercedes-Benz M-Class ML W163 Rear Axle Brake Wiring Loom Harness A1635408905
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6943854
BMW E60 E61 E63 E64 ECU Control Unit Key Reading Module CAS 2 6943854
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8383551
Mini R50 R53 Headlight Aim Range Control Unit Module ECU Xenon 8383551
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A4478200087
Mercedes Sprinter W906 Connector AUX USB Adapter Port Socket A4478200087
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9384214
BMW F10 ECU Body Control Module V2 PL6 JBBFE III Junction Box 9384214
Promo price
PLN 208.95
PLN 188.06
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2188200187
Mercedes W221 Multimedia Interface USB Adapter Port Socket A2188200187
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9118101
BMW 1 Series E81 E82 Driver Side Offside O/S Door Wiring Loom Harness 9118101
PLN 46.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7075907
BMW Z4 E85 Left N/S Contact Bush 7075907
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8J0915459
Audi A4 B8 A5 8T TT MK2 Positive Battery Terminal Cable Overload Fuse 8J0915459
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2038206626
Mercedes-Benz C-Class W203 Door Control Module Unit Rear Right O/S A2038206626
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 1388911-2
BMW E36 E38 E85 Mini R52 R57 4x Change-Over Contact Relay Violet Set 1388911
Promo price
PLN 56.95
PLN 51.26
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9287535
CAS3 Module BMW E60 E87 E90 E91 E92 Key Reading Control Unit 9287535
PLN 61.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9343687
BMW F01 LCI F07 F10 F11 F25 Safety Control Unit Air Module Bag ECU 9343687
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8K0959655N
Audi A4 B8 A5 8T Air Module Control Unit ECU 8K0959655N
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 06L971627M
Audi Audi Q5 FY 2.0 TFSI QUATTRO Petrol Fuel Injectors Wiring Harness 06L971627M
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0015424523
Parktronic Display Mercedes W207 W212 PDC System Parking Sensor A0015424523
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9232063
BMW F30 Control Module Sensor 9232063
PLN 74.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9367673
Mini Cooper F55 F56 F57 Visual Boost Surround Central Cover Instrument 9367673
Promo price
PLN 170.95
PLN 153.86
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6971219
BMW 5 Series E60 E61 Positive Battery Cable Plus Pole Lead 61126971219 6971219
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9187541-2
BMW E93 ECU Body Control Module H3 Junction Box 9187541
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9248298
BMW E88 E93 LCI ECU Control Unit Air Module 9248298
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A0015452616
Mercedes W212 Transmission Control Unit Module VDO EGS 722.646 A0015452616
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9264923
BMW F01 F02 F10 F11 F13 Power Distribution Fuse Box Rear 9264923
Promo price
PLN 56.95
PLN 51.26
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1779001704
Mercedes V177 Door Module Rear Right Control Unit A1779001704
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9236460
BMW F10 Footwell Light Module Control Unit ECU FRM III 9236460
Promo price
PLN 284.95
PLN 199.47
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2025402373-1
Mercedes A C E Class 1 W169 W203 W211 OBD Diagnostic Plug Cover A2025402373
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6911038
BMW 3 X5 Series E46 E53 Airbag Side Impact Crash Sensor Bosch 6911038
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9491419
BMW F45 F48 F15 F31 F36 Mini F60 Trunk Lid Automatic Lift Control Module 9491419
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6906606
Mini Cooper One R50 R52 R53 Fuse Box Electrical Unit Cover Cap Black 6906606
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9119357
BMW 1 3 5 E60 E81 E87 E90 E91 Mini R55 R56 DAB Radio Tuner Module 9119357
Promo price
PLN 142.95
PLN 135.80
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9138969
BMW E60 LCI E61 LCI Electronic Driver Circuit Centre Console 9138969
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8380409
BMW X5 E53 Fuse Distribution Box Relay Board 6907395 8380409 6909721
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2139068701
Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Fuse Unit A2139068701
Promo price
PLN 237.95
PLN 166.57
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 6980078
BMW E88 Antenna Amplifier Aerial Diversity Module AMP 6980078
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A0061511001
Starter Motor Mercedes W906 M272 Engine Diesel Bosch A0061511001
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8583653-1
Engine Wiring Loom BMW F10 F30 F31 LCI N57N Wiring Harness Glow Module 8583653
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9354290-1
BMW X1 F48 Pedestrian Protection Impact Crash Sensor Module PTS 9354290
Promo price
PLN 75.95
PLN 68.36
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2059006923
Air Conditioning Module Mercedes C205 X253 A/C Control Unit ECU A2059006923
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 7444684
BMW 1 3 Series F20 F21 F30 LCI Headlight Control Unit Module FLE2 7444684
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9329701
BCM Module BMW F20 F21 F30 F31 F32 Body Control Unit Module REM V2 9329701
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6799659
BMW F10 F11 ICM Module Integrated Chassis Management QL ES Control Unit 6799659
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. CC1T-10300-BD
Ford Transit Mk8 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BD
Promo price
PLN 332.95
PLN 299.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6929345
BMW 1 3 Series E82 E90 E92 Roof Antenna Aerial Shark Fin GPS Radio Tel 6929345
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A6519064300
Mercedes W205 Diesel OM651 Engine Starter Motor Actuator Bosch A6519064300
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 6809316
BMW F10 F20 F23 F30 Telematics Module Bluetooth Communications Control 6809316
Promo price
PLN 389.95
PLN 272.97
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8T0959792Q
Audi A5 8T Front Door Control Module Passenger Side 8T0959792Q
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
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 .