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
-10%
Part no. A1669003309
Mercedes W176 W204 W246 Headlight Headlamp Range Control Unit Module A1669003309
Promo price
PLN 179.95
PLN 161.96
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 9259831
BMW E93 Convertible Wiring Loom Front Door Cables Cable Passenger Side 9186668
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. KD45-57KC0
Mazda 6 GJ Impact Crash Sensor Control Unit Module KD45-57KC0
PLN 42.95
Delivery - Tue, Dec 23
If paid before 14:00
Part no. A6394460446
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6394460446
PLN 123.95
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 296B20856R
Smart ForTwo C453 Bonnet Hood Opening Release Sensor 296B20856R
PLN 89.95
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 5A234D0
Wiring Cable BMW F06 F12 F13 Electric Parking Hand Brake Handbrake Cable 5A234D0
Promo price
PLN 142.95
PLN 100.07
Free delivery - Tue, Dec 23
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 23
If paid before 14:00
-10%
Part no. A2049009301
Mercedes W212 Media Interface Control Unit Module Multimedia A2049009301
Promo price
PLN 104.95
PLN 94.46
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 6953424-2
BMW Z4 Series 2 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
Promo price
PLN 161.95
PLN 145.76
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 8J0035456A-1
Antenna Amplifier Audi Q5 8R A6 C6 A5 8T Mobile Phone Module Unit 8J0035456A
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 9118111
BMW 1 Series E81 E82 Door Wiring Loom Harness 9118111
Promo price
PLN 56.95
PLN 54.10
Delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 8W1907064BL
Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BL
Promo price
PLN 759.95
PLN 531.97
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 8K0971687S
Audi A4 B8 Door Wiring Harness Loom Rear Left N/S Cabling 8K0971687S
Promo price
PLN 75.95
PLN 68.36
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 5B4E028
Remote Control Receiver BMW F70 X5 G05 G60 U06 Mini F65 Radio Module 5B4E028
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 23
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 23
If paid before 14:00
-5%
Part no. A2075454440
Mercedes-Benz E-Class A207 Convertible Control Unit Module Bracket Trunk
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A2044402607
Earth Ground Cable Mercedes W204 W207 Battery Wiring Loom Engine A2044402607
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 9110878
BMW E81 E87 E91 Switch Cluster Steering Column Cruise Control 9110878
Promo price
PLN 664.95
PLN 465.47
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 8579478
BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Unit DDE 8579478 Manual
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. A2189002002
Mercedes X218 CLS350 Automatic Trunk Lid Clossing Control Module A2189002002
Promo price
PLN 142.95
PLN 100.07
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A0035423019
Power Relay Control Mercedes W176 W246 Module 4 Pin 12V 20A A0035423019
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 4G8959793G
Audi RS6 C7 Front Door Module Driver's Side Control Unit ECU 4G8959793G
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 9199491
BMW Mini Clubman R55 Cable Wiring Loom Splitdoor Door Rear Left N/S 9199491
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 8S0963553D
Volkswagen Skoda Seat Audi Seat Pressure Sensor Front Passenger Side 8S0963553D
Promo price
PLN 66.95
PLN 63.60
Free delivery - Tue, Dec 23
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 23
If paid before 14:00
-5%
Part no. A2198203626
Mercedes CLS W219 Door Module Rear Right O/S Control Unit A2198203626
Promo price
PLN 66.95
PLN 63.60
Free delivery - Tue, Dec 23
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 23
If paid before 14:00
-5%
Part no. 9322532
Gateway Module BMW F01 F10 F11 F12 Central Body Control 9244262
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 3Q0959655AQ
Skoda Octavia 5E Air Module Control Unit ECU Module Sensor 3Q0959655AQ
PLN 360.95
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. A2059001722
Computer Mercedes W205 X253 W447 Navigation Radio Player Head Unit A2059001722
Promo price
PLN 807.95
PLN 565.57
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A0535450226
Mercedes Sprinter W906 Fuse Box Connector Plug Socket A0535450226
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 8K0907064JE
Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064JE
Promo price
PLN 142.95
PLN 100.07
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 1508927-2
BMW Mini Cooper S R52 R53 2 Positive Battery Cable Fuse Box Module B 6911180
PLN 56.95
Delivery - Tue, Dec 23
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 23
If paid before 14:00
-30%
Part no. A6394460132
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460132
Promo price
PLN 949.95
PLN 664.97
Free delivery - Tue, Dec 23
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 23
If paid before 14:00
-10%
Part no. 9365837
BMW F20 F21 F22 F30 F31 Head Unit Basic Media Headunit 9365837
Promo price
PLN 664.95
PLN 598.46
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 95B919294C
Porsche Macan 95B PDC Parking Sensor Control Module Unit 95B919294C
PLN 702.95
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A0025451201
Mercedes W169 W245 W906 Fuse Box Carrier A0025451201
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 8510221-6
BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key
Promo price
PLN 902.95
PLN 812.66
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 3C0937125A-1
VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A
PLN 42.95
Delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 7583225-11
BMW E87 LCI E90 118i 318i N43 143HP ECU Control Kit DME 7583225 Automatic
Promo price
PLN 1,139.95
PLN 1,025.96
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A6396890379
Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6396890379
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 8584816
Engine Wiring BMW G20 G21 X3 G01 B57 Injectors Module Harness Loom 8584816
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A2135452840
Mercedes W213 ECU Bracket Control Unit Module Holder Mount A2135452840
Promo price
PLN 56.95
PLN 54.10
Delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 3456872
Mini Cooper R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456872
Promo price
PLN 1,092.95
PLN 983.66
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 4H0955557
Volkswagen VW Polo 6R 5 Audi A6 C7 Air Module Crash Impact Sensor 4H0955557
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
Part no. 2H0959652
Porsche Macan 95B VW Amarok Front Crash Impact Sensor Air Module 2H0959652
PLN 170.95
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 7587548-5
Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS3 + Key Manual
Promo price
PLN 2,374.95
PLN 2,137.46
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A6461502734-1
Mercedes W204 C220 CDI 170HP 646.811 Engine Unit ECU A6461502734 Automatic
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A2075400740
Fuse Box Mercedes W204 Battery Terminal Control Unit Module A2075400740
Promo price
PLN 75.95
PLN 68.36
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A2469003014
Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469003014
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A2075401650-1
Mercedes W204 Fuse Prefuse Box Relay Electrical Control Unit A2075401650
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A0009051600
Mercedes W207 W212 W221 Front Windscreen Windshield Camera A0009051600
Promo price
PLN 85.95
PLN 81.65
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 8E0035456D
Audi A4 B8 Telephone Aerial Antenna Signal Amplifier Module 8E0035456D
PLN 42.95
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 240720782R
Renault Trafic III VIvaro B Wiring Connector Additional Horn Cable 240720782R
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A2075409334
Mercedes-Benz E-Class W207 Cabrio A207 Battery Ground Cable Wiring Mass Lead
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A2124407038
Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124407038
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A1179009200
Mercedes W176 Air Module Belts System Control Unit ECU Bosch A1179009200
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A2218703086
Mercedes W221 Seat Module Front Right O/S Memory Control Unit A2218703086
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 8580192
Glow Plug Cable BMW G20 X3 G01 B47 Wiring Harness Engine Glow Module 8580192
Promo price
PLN 237.95
PLN 166.57
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A2139002422
Mercedes W213 Front Door Module Control Module Unit Right O/S A2139002422
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 9204849
BMW X5 X6 Series E70 E71 Airbag Control Module ECU Unit 9204849
Promo price
PLN 65.95
PLN 62.65
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 8702093-1
Head-Up Display Hud Mini Cooper F54 F55 F56 F57 Project Dash Screen 8702093
Promo price
PLN 759.95
PLN 683.96
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 7541779
BMW Z4 E85 2.0i N46 Cable Alternator Starter Base B+ 7541779
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
Part no. N1WT-14F514-PFD
VW Amarok Mk2 Front Door Wiring Harness Keyless Left Right N/O/S N1WT-14F514-PFD
PLN 123.95
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. A1648702726
Mercedes W164 Tailgate Boot Lid Control Unit Module A1648702726
PLN 237.95
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 6974372
BMW 7 Series 7 E65 E66 E67 Ultra Sonic Module
Promo price
PLN 28.95
PLN 27.50
Delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A1031550435
Mercedes W124 M103 Bracket Alternator Mount Holder Support A1031550435
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A2465400512
Seat Wiring Mercedes C117 Front Seat Left Wiring Harness a2465400512
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A6394405009
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6394405009
Promo price
PLN 37.95
PLN 36.05
Delivery - Tue, Dec 23
If paid before 14:00
Part no. 2GA035284A
Seat Ibiza KJ1 VW Polo MK6 Online Services Control Module ECU Unit 2GA035284A
PLN 598.95
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 8K0971104
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
Part no. A6519003701-2
Mercedes W212 Engine ECU Module Wiring Loom Harness Socket OM651 A6519003701
PLN 94.95
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 8574351
BMW X1 E84 16d 18d 18dX Diesel N47N Engine Control Unit ECU DDE 8574351 Manual
Promo price
PLN 379.95
PLN 341.96
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 7512967
Mini Cooper R50 R52 R53 Base B+ Terminal Point Engine Compartment 7512967
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 4F0959655B
Audi A6 C6 Air Module Control Unit ECU Module 4F0959655B
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 9134646
Seat Module BMW E65 E66 Front Seat Control Unit Module ECU 9134646
Promo price
PLN 180.95
PLN 126.67
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 9297282-1
BMW E63 E64 Battery Power Cable Lead Positive Underfloor Red 9297282
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 9670855680
Peugeot Partner Diesel Glow Plug Wiring Loom Cable Wiring 9670855680
Promo price
PLN 66.95
PLN 63.60
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 9399427-1
Radio Head Unit BMW F20 F21 F22 F30 F31 Basic Media Navigation Headunit 9399427
PLN 474.95
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. A2135400329
Mercedes X253 Electrical Wiring Harness Cable Hybrid A2135400329
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 8E0910115K
Audi A4 B7 2.0 TFSI BWE 200HP Engine Control ECU 8E0910115K Manual
PLN 284.95
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 8512415
Mini Cooper D R60 ALL4 N47N 112HP Diesel Engine Control Unit ECU DDE 8512415
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 6925715
BMW 1 3 Series E81 E82 E87 E90 E91 E92 Positive Battery Terminal Cover 6925715
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 9149673
BMW 5 Series E60 E61 LCI Alarm System Unit Ultra Sonic Module 9149673
Promo price
PLN 37.95
PLN 36.05
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A0035421019
Relay Mercedes C117 GLA X156 ML W166 W176 W246 5 Pins Yellow A0035421019
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 5WA962133E
Volkswagen Golf 5G Keyless Entry Module Aerial Antenna 5WA962133E
Promo price
PLN 75.95
PLN 68.36
Free delivery - Tue, Dec 23
If paid before 14:00
Part no. 8K0959793C
Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793C
PLN 42.95
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 7634061
BMW F10 Engine Transmission Module Cable Loom Wiring Harness 7634061
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
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 23
If paid before 14:00
Part no. 8486547-2
Mini Cooper F55 F56 Dual-Clutch Transmission Gearbox Control Unit Module DCT
PLN 1,662.95
Free delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. 6C1T-12B637-JJ
Ford Transit Mk7 Engine Wiring Loom Harness Cables 2.2 TDCi 6C1T-12B637-JJ
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. A1568200089
Mercedes W176 W246 Tailgate Aerial Antenna Amplifier Unit A1568200089
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 7W93-11A134-AA
Jaguar XF 250 Power Adapter Battery Positive Terminal 7W93-11A134-AA
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. A1779002207
Mercedes W177 Rear Left Right N/O/S Door Control Module A1779002207
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 23
If paid before 14:00
-5%
Part no. 6923217
BMW 6 E64 E64 LCI Bracket Control Unit Vehicle Electrical System 6923217
Promo price
PLN 18.95
PLN 18.00
Delivery - Tue, Dec 23
If paid before 14:00
-30%
Part no. A1729060105
Mercedes SLK R172 Rear Fuse Box SAM Relay Control Unit Module A1729060105
Promo price
PLN 332.95
PLN 233.07
Free delivery - Tue, Dec 23
If paid before 14:00
-10%
Part no. 6986081-2
CD Changer BMW E60 E61 E63 E64 Compact CD Changing Unit 6986081
Promo price
PLN 161.95
PLN 145.76
Free delivery - Tue, Dec 23
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 .