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. 8R0907401J-1
Audi Q5 8R 3.0 TDI CCWA 240HP Quattro Engine ECU Kit Ignition + Key 8R0907401J
Promo price
PLN 1,187.95
PLN 1,069.16
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9322122-1
Display Screen BMW F20 F21 F22 Central Information Sat Nav Monitor 6,5" 9322122
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 5Q0919283B
PDC Module Audi A3 8V Seat Leon Skoda Octavia Parking Control Unit 5Q0919283B
Promo price
PLN 42.95
PLN 38.66
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 5QA919294B
Audi A3 8V VW Volkswagen Golf VII PDC Park Assist Control Module Unit 5QA919294B
PLN 113.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7555188
BMW 5 6 Series F10 F11 F12 F13 Control Unit Box Cover 7555155
Promo price
PLN 37.95
PLN 36.05
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8510221-3
BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key
Promo price
PLN 664.95
PLN 598.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0009007126
Air Conditioning Module Mercedes W205 W213 C253 A/C Control Unit ECU A0009007126
Promo price
PLN 170.95
PLN 153.86
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8385498-1
BMW 7 Series E65 E66 E67 Support Bracket Navigation Computer 8385498
Promo price
PLN 46.95
PLN 44.60
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9267980
BMW F10 Fuse Location Diagram Map Fuse Grouping 9267980
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6868598
BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Control Unit Module 6868598
Promo price
PLN 46.95
PLN 44.60
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8661071
BMW Mini Cooper F55 F56 F57 Integrated Supply Module Z11 8661071
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8507398
Glow Bracket BMW E60 E87 LCI E90 E91 E92 F10 F11 N47 Diesel Relay Plug 8507398
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9367376
Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9367376
Promo price
PLN 237.95
PLN 166.57
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 80A907247
Audi SQ5 FY Line Keyless Entry Antenna Control Module 80A907247
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2045402610
Mercedes W204 Cable Harness Rear Door Panel Card Wiring Loom A2045402610
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9347470
BMW 1 3 Series F20 F21 F30 Control Unit Controller Touch 9347470
Promo price
PLN 42.95
PLN 38.66
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9217234
Module Bracket BMW X3 F25 X4 F26 Control Unit Holder Carrier 9217234
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5WA980653C
Audi A3 S3 RS3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653C
PLN 474.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2108208726
Mercedes-Benz W210 S210 Alarm Anti Theft System Control Module Unit A2108208726
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2649001200-4
Mercedes W177 A35 AMG 306HP 260.920 4Matic Engine ECU Control Unit A2649001200
Promo price
PLN 664.95
PLN 465.47
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8R0907364B
Audi Q5 8R A5 8T A4 B8 Active Suspension Module Damping Control Unit 8R0907364B
PLN 142.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7855481
BMW F90 M5 F92 M8 Oil Level Sensor Wiring Harness Loom Cable 7855481
Promo price
PLN 218.95
PLN 208.00
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A0009058000
Windscreen Camera Mercedes W207 W221 Front Windshield Module Unit A0009058000
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8K0907064FF
Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8590045
BMW G20 G21 G01 G02 B47B B47D Engine Injector Module Wiring Harness 8590045
Promo price
PLN 160.95
PLN 144.86
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9154358
BMW E81 E87 E90 Hands-Free Electronics Charging Module MULF 9154358
Promo price
PLN 275.95
PLN 193.17
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2129005200
Seat Module Mercedes W204 W212 Memory Control Unit Driver's Side A2129005200
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5QF959655BT
Seat Ibiza Mk5 Air Module Control Unit 5QF959655BT
PLN 1,899.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1775409357
Mercedes W177 M282 Starter Alternator Electrical Wiring Harness A1775409357
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1679004511
Door Module Mercedes W205 W213 C253 Rear Left N/S Control Unit ECU A1679004511
Promo price
PLN 265.95
PLN 239.36
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7619250
Alternator Bracket BMW F10 F20 F22 F30 F32 LCI G30 B47 Supporting Mount 7619250
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A9425426040
Mercedes Sprinter W906 Fuse Box Relay Carrier Holder Bracket A9425426040
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 7598857
Mini R55 R56 Cooper S EGS Module Automatic Gearbox ECU Control Unit 7598857
Promo price
PLN 332.95
PLN 233.07
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2075401102
Mercedes W207 A207 C207 Loudspeaker Cable Wiring Loom Harness
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9222071
BMW F07 BCM Body Control Module Unit Controller 9222071
Promo price
PLN 142.95
PLN 100.07
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 7621178-1
BMW E81 E87 LCI E90 N43 118i 318i ECU Kit DME CAS3 Key 7621178 Manual
Promo price
PLN 759.95
PLN 531.97
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8517862-5
BMW F10 F20 F30 520d 120d 320d N47N 184HP Engine Unit ECU DDE 8517862 Automatic
Promo price
PLN 94.95
PLN 66.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1695450140
Mercedes A B Class W169 W245 Holder Bracket Engine Control Unit A1695450140
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2539000100
Rain Light Sensor Mercedes X253 Windschield Sensor Module Unit A2539000100
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9270355
Fuse Carrier BMW F40 Mini F55 F56 F57 F60 Distribution Box 9270355
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A1695451440
Mercedes W169 W245 Central Gateway Module Bracket Holder Mount A1695451440
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8368231
BMW E46 Door Speaker Tweeter Front Left N/S 8368231
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2319003706
Mercedes R231 Control Unit Module Passenger Seat A2319003706
Promo price
PLN 522.95
PLN 366.07
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9267466
BMW F10 Body Control Module Junction Box V2 PL2 JBBFE III Lear ECU 9267466
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9125237
CD Changer BMW X5 E70 X6 E71 Mini R55 R56 R57 6 Disc Changer Unit 9125237
PLN 75.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6929556
BMW E65 E66 Driver's Seat Air Module Sensor Control Unit Module 6929556
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 5Q0919294G
Audi A3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919294G
PLN 189.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8679681
BMW F45 i3 i01 Mini F60 High Voltage Connector 8679681
PLN 142.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5Q0955547C
Skoda Octavia Fabia Mk3 VW Polo Mk6 Rain Sensor Control Unit Module 5Q0955547C
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8E0971095R
Audi A4 B7 Front Bumper Wiring Loom Harness Cable 8E0971095R
PLN 75.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 99650415100
Porsche Boxster 986 Battery Tray Lower Covering Panel Cap 99650415100
PLN 75.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 7612815
BMW F10 M5 F12 F13 M6 F07 X5 F15 Starter Motor 428000-8530 12V 7612815
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 3449686
Mini Cooper R55 R56 R57 Passive Go Module Control Unit 3449686
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8321087-1
BMW E60 Front Seat Height Adjustment Electric Motor Actuator 0390203234 8321087
Promo price
PLN 37.95
PLN 36.05
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6885215
BMW F90 M5 F91 M8 G05 G11 G30 Steering Column Control Unit Module 6885215
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9302937
BMW F01 LCI Cable Door Rear Left Right N/O/S Wiring Harness 9262882
Promo price
PLN 142.95
PLN 135.80
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 80A907247A
Audi Q5 FY Keyless Entry Amplifier Control Box Module Aerial Antenna 80A907247A
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2475400600
Mercedes W177 Rear Axle Wheel RPM Speed Right Sensor Wire Harness A2475400600
Promo price
PLN 85.95
PLN 81.65
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. F1ET-14F144-BC
Ford Transit Connect Door Module Front Right O/S Control Unit ECU F1ET-14F144-BC
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8796289
BMW X3 G01 X4 G02 X5 G05 Battery Terminal Negative Cable Wire Wiring 8796289
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2115452301
Mercedes-Benz E-Class S211 W211 Fuse Box Terminal Connection Unit A2115452301
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9289580
Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen CID 8,8" 9289580
Promo price
PLN 379.95
PLN 341.96
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5L0051236H
Skoda Yeti 5L Octavia III Card Map Sat Navi Navigation Europe 2015 5L0051236H
PLN 80.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A1775401758
Mercedes W118 W177 W247 Starter Alternator Wiring Loom Harness Cable A1775401758
PLN 341.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9377150
BMW 1 Series F20 Bluetooth Control Module Unit TCB ECE 9377150
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6842527
BMW G20 Battery Terminal Voltage Distribution Box 400W MID 6842527
Promo price
PLN 132.95
PLN 119.66
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2129003922
Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922
Promo price
PLN 132.95
PLN 93.07
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9284282
BMW F10 Body Control Module ECU Junction Box PL6 JBBFE III V2 9284282
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9231283-BS
BMW X5 E70 F10 PDC Parking Sensor Distance Control Sensor Black Sapphire - 475
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4B0959643E
Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 4B0959643E
Promo price
PLN 56.95
PLN 54.10
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2829006700
Mercedes W177 A200 M282.814 163HP Engine Control Unit ECU A2829006700 Automatic
Promo price
PLN 1,139.95
PLN 797.97
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 7243562
BMW F20 F30 Sport Seat Front Heating Mat Element F21 F31 F32 7243562
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8S0947355
Audi TT FY 8S LED Module Light Unit Wiring Harness 8S0947355
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 4G5971687BQ
Audi A6 C7 4G Rear Door Harness Wiring Loom Cable Left N/S 4G5971687BQ
PLN 80.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9339192
BMW F45 F46 Battery Cable Positive Wire Lead Terminal 9339192
Promo price
PLN 66.95
PLN 60.26
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A2129004901
Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9153803
BMW X5 Series E70 Light Lightning Control Unit Module FRM II Lear 9153803
Promo price
PLN 569.95
PLN 398.97
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1779061302
Mercedes EQA H243 W247 Fuse Box Relay Control Unit Module A1779061302
Promo price
PLN 284.95
PLN 256.46
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8578945-4
BMW F20 F21 F30 116d 316d N47N 116HP ECU Engine Contol Unit DDE 8578945 Manual
Promo price
PLN 94.95
PLN 66.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4H0919275-SHB
VW Golf Mk6 Audi TT 8J Parking Distance Control Sensor Shark Blue Metallic - A5Q
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8635815
BMW F20 F30 LCI 118i 318i B38 Gearbox Wiring Loom Harness Cable 8635815
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1638201126
Mercedes ML W163 Windscreen Rain Light Sensor Control Module A1638201126
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 240801846R
Renault Trafic III Vauxhall Vivaro B Positive Battery Cable Lead Wire 240801846R
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9350003-1
Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 6700003892
Smart Fortwo C453 Power Steering Column Control Unit Module 6700003892
PLN 142.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 2100493N
Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 2100493N
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A6421509478
Mercedes ML W164 OM642 Diesel Engine Control Unit Module ECU A6421509478
Promo price
PLN 759.95
PLN 531.97
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1645403572-1
Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572
Promo price
PLN 664.95
PLN 598.46
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2129004206
Door Module Mercedes W212 E-Class Rear Right O/S Control Unit A2129004206
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8579482
BMW F20 F21 116d ed Diesel N47N 116HP Engine Control ECU DDE 8579482 Manual
Promo price
PLN 332.95
PLN 233.07
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9247088
BMW X1 Series E84 Wiring Loom Harness Passenger Side 9233559
Promo price
PLN 65.95
PLN 62.65
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8W9035382B
Audi A4 S4 B9 Boot Trunk Subwoofer Rear Bass Speaker Audio Unit 8W9035382B
PLN 237.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2129009128
Door Module Mercedes W207 W212 CLS W218 Front Left N/S Control Unit A2129009128
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6934096
BMW 7 Series E65 Cable Harness Door Rear Right Left N/O/S Wiring Loom 6923713
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6957759
BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6957759
Promo price
PLN 85.95
PLN 81.65
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 7629420
BMW F10 F11 F12 540i 640i N55 315HP Engine Control ECU DME Kit 7629420 Automatic
PLN 1,899.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5G0971104D
VW Volkswagen Golf Mk7 Wiring Loom PDC Rear Harness Parking Sensor 5G0971104D
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6868253
BMW F20 F21 F30 F31 ECU ICM Control Unit Module Airbag ECU 6868253
Promo price
PLN 66.95
PLN 63.60
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2189058500
Mercedes CLS X218 Antenna Amplifier Rear Aerial Control Module A2189058500
Promo price
PLN 61.95
PLN 55.76
Free 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 .