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
-30%
Part no. 8638552
Supply Module BMW F90 M5 F91 M8 G05 G11 G30 Integrated Control Unit 8638552
Promo price
PLN 237.95
PLN 166.57
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 6986987
BMW Z4 Series E85 Cable Loom Passenger's Door Wiring Harness 6986987 6986982
Promo price
PLN 142.95
PLN 100.07
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 7304589
BMW F01 F02 Headlight Module LEAR TMS Headlamp Control Unit Module 7304589
PLN 284.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2465406607
Positive Cable Mercedes W176 W246 Battery Lead Plus Pole Red A2465406607
Promo price
PLN 66.95
PLN 60.26
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8T0919603E-1
Audi A4 B8 Display Screen Sat Nav Navigation Dashboard 8T0919603E
Promo price
PLN 161.95
PLN 145.76
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2711500420
Mercedes W204 M271 Solenoid SOLV Valve Wiring Harness Petrol A2711500420
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 39113-2A511
Kia Ceed I 1.6 CRDI 115HP D4FB Diesel Engine Control ECU 39113-2A511 Manual
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 7H0959433B
Volkswagen Transporter T5 Body Control Comfort Unit Module BCM 7H0959433B
PLN 237.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8T0971035A
Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side 8T0971035A
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2469009212
Mercedes X117 Tailgate Boot Control Rear Module Unit A2469009212
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9252331
BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9252331
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8267406
Headrest Adjustment BMW E46 E64 Front Right O/S Seat Actuator 8267406
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7796127
BMW X5 X6 Series E70 E71 Diesel Battery Cable Starter-Base B+ 7796127
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8W0959593N
Audi A4 B9 Front Door Module Control Unit ECU Driver's Side 8W0959593N
Promo price
PLN 180.95
PLN 126.67
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9337205
BMW F32 Door Wiring Front Door Right Loom Cable Wiring Harness 9337205
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9313992
BMW F13 Front Seat Control Module Unit ECU Left Right N/O/S 9313992
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9364552
Seat Wiring BMW F45 X1 F48 Mini F55 F56 Passenger's Side Sensor Cable 9364552
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. HC345H297AA
Ford Transit Mk8 2.0 EcoBlue AdBlue Module Control Unit HC34-5H297-AA
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8678974
Engine Cable BMW F40 X1 F48 Mini F55 F56 Injector Wiring Loom Harness 8678974
Promo price
PLN 170.95
PLN 119.67
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9156654
BMW 3 Series E93 Rear Antenna Aerial Amplifier AM/FM 9156654
Promo price
PLN 55.95
PLN 53.15
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1729017601
Mercedes SLK R172 Front Air Module SRS Control Unit ECU A1729017601
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 1K0955559AB
Volkswagen Golf Mk5 Rain Sensor Front Windscreen Control Unit Module 1K0955559AB
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8W0947356E
Audi A5 S5 F5 Interior Door Panel Courtesy Light LED Wiring Harness 8W0947356E
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1729056500
Mercedes-Benz A B Class W176 W246 Aerial Antenna Cable A1729056500
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A0005465402
Mercedes C117 W176 W246 Positive Battery Terminal Cover Cap Trim Red A0005465402
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 6824386
Fuse Box Unit BMW F20 F22 F30 F32 Module ECU Control FEM 6824386
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9261591
BMW F20 F21 F30 PDC Ultrasonic Parking Sensor PDC Front Imperial Blau Blue
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9164355
Battery Cable BMW E81 X1 E84 E87 Lead Negative 9123571
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2129004314
Door Module Mercedes W204 W212 Front Right O/S Control Unit A2129004314
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8U0955559C
Audi RS3 8V Front Windscreen Rain Light Solar Sensor Unit 8U0955559C
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1685400830
Mercedes A W168 Petrol Engine Starter Alternator Electrical Cable A1685400830
Promo price
PLN 123.95
PLN 117.75
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 420919275-BLM
Audi A5 8T Rear Bumper PDC Parking Distance Sensor Black Magic Pearl - C9Z
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1729007003
Seat Module Mercedes W204 W212 Control Unit Front Left Right N/O/S A1729007003
Promo price
PLN 275.95
PLN 193.17
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8T0907441D
AUDI A4 B8 Reversing Camera Control Module Rear View Unit ECU 8T0907441D
Promo price
PLN 569.95
PLN 512.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2059001811
Mercedes W205 Rear Door Control Module Unit Left N/S ECU A2059001811
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6902265
BMW E65 E66 E67 Compact Base Support System Rear Black 6902265
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 6C1T14A481CC
Ford Transit Mk7 Fuse Box Body Control Module ECU 6C1T14A481CC
Promo price
PLN 284.95
PLN 199.47
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 4H0959795B
VW Touareg 7L Rear Door Control Unit Module Left Right N/O/S ECU 4H0959795B
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2044407441
Earth Ground Cable Mercedes W204 W207 W212 W218 Battery Wiring Loom A2044407441
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9811224
Mini Cooper One R55 R56 R57 Airbag ECU Control Unit Module 9811224
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1669004519
Mercedes C292 SAM Module Rear Control Unit A1669004519
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2049060205-3
Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2129009505
Mercedes W212 PDC Parking Distance Control Unit Module Sensor A2129009505
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6980089
BMW 5 Series E60 E61 Alarm System Unit Ultra Sonic Module 6980089
Promo price
PLN 23.95
PLN 22.75
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8582280
Engine Control ECU BMW F20 F21 116d N47N 116HP DDE 8582280 Manual Transmission
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7823731
BMW E84 E90 E91 LCI 320xd N47 Cable Alternator Starter Base B
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 7316535-3
BMW F06 F13 Sliding Sunroof Drive Motor Unit Webasto 7316535
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A9066800214
Mercedes Sprinter W906 Radio Fan Adapter Cooling Control Unit Module A9066800214
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 4G2907311C-1
Audi A7 4G8 3.0 TDI CRTE 218HP Quattro Engine ECU Kit 4G2907311C BCM2 + 2 Keys
Promo price
PLN 2,849.95
PLN 1,994.97
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 4H0971142C
Audi A8 D4 Door Card Wiring Loom Cable Harness Rear Right O/S 4H0971142C
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2035450301
Mercedes-Benz C CLK Class W203 W209 Battery Terminal Fuse Box A2035450301
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 9371386
BMW 4 Series F33 F83 M4 Convertible Top Module CTM Unit 9371386
PLN 474.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6778809-1
Mini Cooper One R55 R56 R57 Xenon Headlight Level Sensor 6778809
Promo price
PLN 55.95
PLN 53.15
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A4475400082
Mercedes Vito W447 Fuse Box Cover Trim Panel Lid Housing A4475400082
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9253477
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE IIIR 9253477
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2218708326
Mercedes W221 Rear View Backup Camera Control Unit Module A2218708326
Promo price
PLN 208.95
PLN 146.27
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9168335
BMW X1 E84 Antenna Amplifier Diversity 868 MHZ 9168335
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6G9T-14B192-CA
Ford Fiesta Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-CA
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7798076
BMW E60 E61 E63 E64 LCI Electrical Battery Earth Cable 330MM 7798076
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2535400901
Starter Cable Mercedes W205 GLC X253 M274 Electrical Wiring Harness A2535400901
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2079011700
Airbag Module Mercedes W204 W207 Air Bag SRS Control Unit ECU A2079011700
Promo price
PLN 66.95
PLN 63.60
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8W0906093D
Audi A4 B9 Fuel Pump Control Unit Module ECU 8W0906093D
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6824116
BMW 3 F30 LCI 330e Hybrid High Voltage Battery Wiring Inverter Cable 6824116
Promo price
PLN 379.95
PLN 341.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8V0907159
Audi A3 RS3 8V Impact Sound Actuator Body Control Unit Module ECU 8V0907159
Promo price
PLN 123.95
PLN 117.75
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6821407
High Voltage Cable BMW F45 Mini F60 Hybrid Harnes EDH 6821407
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8C1T-18C815-AD-1
Ford Transit Radio Head Unit 6000 CD Media Player Unit 8C1T-18C815-AD
PLN 142.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7254970
BMW E92 LCI Grille Trim Panel Chrome Frame Front Right O/S 7254970
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0009062822
Alternator Generator Mercedes W207 W212 W906 Engine Diesel 200A 14V LRA03818
Promo price
PLN 379.95
PLN 341.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6904620
BMW 7 Series E65 E66 Diversity Antenna Tuner Amplifier Wiring 6904620
Promo price
PLN 18.95
PLN 18.00
Delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8585727
Wiring BMW F21 F30 F34 F36 Diesel N47N Engine Gearbox Module Harness 8585727
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8664661
BMW F23 F30 F32 220i 320i 420i N20 184HP Engine Module ECU DME 8664661 Automatic
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1729060205
Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8K0959793J
Audi A4 B8 Door Module Front Right O/S Control Unit Module ECU 8K0959793J
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 80A907777N
Audi Q5 FY Active Suspension Module Damping Chassis Control Unit EFP 80A907777N
Promo price
PLN 1,139.95
PLN 1,025.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2115405535
Mercedes W211 W219 Earth Ground Cable Battery Wiring Loom Engine A2115405535
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A0008201277
Mercedes-Benz W906 Light Repeater Lamp Wiring Loom A0008201277
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9264571
BMW E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359264571 9264571
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2229009910
Mercedes W205 W213 C238 Seat Heating Heater Module Control Unit ECU A2229009910
Promo price
PLN 284.95
PLN 256.46
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8X0959793E
Audi A1 8X Q3 8U Front Door Module Driver's Side Control Unit ECU 8X0959793E
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2038202285
Mercedes-Benz C-Class W203 Door Control Module Right Rear O/S A2038202285
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2229004320
Telematics Module Mercedes C238 Communication Blutooth Control A2229004320
Promo price
PLN 265.95
PLN 186.17
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8387546
BMW 3 Z4 Series E46 E85 E86 Battery Positive Cable Fuse Box B Base 8387546
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1679008406
Mercedes W167 W177 W247 Ignition Engine Control Unit Module A1679008406
Promo price
PLN 712.95
PLN 641.66
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6940623
BMW 1 3 Series E81 E82 E84 E87 E90 E91 PDC Parking Ultrasonic Sensor Quartz Blue
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9348935
BMW X1 F45 F48 Mini F55 F56 F60 Air Module Control Unit Module ECU 9348935
Promo price
PLN 617.95
PLN 432.57
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6970908
BMW E65 E66 Sensor Front Right Door Airbag O/S 6970908
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6980177
BMW X1 X3 X5 X6 Z4 Z8 Relay Changeover Function Green 6980177
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7534704
Mini Cooper One R50 R52 Kabel Generator Starter Anlasser BOSCH 7534704
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8519668
BMW E90 E91 LCI 320d N47N 184HP Engine Control Unit ECU DDE 8519668 Manual
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9262752-1
BMW F20 F21 F22 Central Information Display Screen 6,5" Control Unit 9262752
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2749000700
Mercedes W204 C180 BlueEFFICIENCY M274.910 156HP Engine Unit ECU A2749000700
Promo price
PLN 1,092.95
PLN 765.07
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 575035816A
Seat Ibiza Mk5 KJ1 Multimedia Radio CD Player Head Unit 575035816A
PLN 522.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9282424
BMW 3 5 Series F10 F30 Control Unit Module Top Rear Side View Camera 9282424
PLN 712.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9875930
BMW G20 Head Unit Navigation Audio Player Controller Module 9875930
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6950131
BMW X3 E83 Z4 E85 Front Rear Door Mid-range Audio Loudspeaker 6950131
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
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 .