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
-15%
Part no. A2048701126
Mercedes S204 Door Module Rear Left N/S Control Unit ECU A2048701126
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8654466-1
BMW F45 225i 231HP B48 Engine ECU Kit Unit DME 8654466 BDC Key Automatic
Promo price
€664.95
€398.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A0993200258
Mercedes W213 C238 Air Suspension Valve Block Control Unit Module A0993200258
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2048207485
Mercedes W204 Front Door Control Unit Module Right O/S A2048207485
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6921309
BMW E65 E66 Centre Console Front Armrest Tray Cables Wiring Set 6921309
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2129004206
Door Module Mercedes W212 E-Class Rear Right O/S Control Unit A2129004206
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. D1BT14D212NA
Ford Transit Connect Mk2 II Bluetooth Control Module Unit ECU D1BT14D212NA
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2059003740
Mercedes A205 Convertible Comfort Control Unit Module A2059003740
Promo price
€85.95
€51.57
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7624617-1
BMW F20 F21 F30 F31 F32 Cable Alternator Starter Base B 7624617
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2218704895
Mercedes W221 Door Module Rear Door Control ECU Unit Left N/S A2218704895
€28.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7579155-1
Starter Motor BMW X5 E70 LCI X6 E71 Z4 E89 N20 N55 Petrol Engine 7579155
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6949226-2
4 x BMW E63 E64 DWA Door Alarm System Module Control Unit Set 6949226
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9255048
BMW 1 Series E81 E87 E87N Battery Wire Cable Negative Earth Lead 9255048 6929705
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1779001203
Mercedes W177 Door Control Module Rear Left Right N/O/S A1779001203
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2909003001
Mercedes C238 E53 4matic Transfer Case Torque Distribution Control ECU
Promo price
€379.95
€227.97
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2118705026
Passenger Seat Module Mercedes W164 W203 W211 Memory Control Unit A2118705026
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6989994
BMW E65 E66 E67 Control Unit Front Centre Console Module 6989994
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0035420219
Relay Mercedes W639 W906 5-Pin Black 12A A0035420219
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A1769009203
Mercedes R172 R231 Headlight LED Ballast Control Unit Module A1769009203
€85.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0009054807
Mercedes W118 W177 W206 W247 NOX Sensor A0009054807
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2215401833
Mercedes W221 Door Harness Left Right N/O/S Rear Door Wiring Loom A2215401833
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2465402705
Mercedes W176 Door Harness Loom Cable Wiring Front Left Right N/O/S A2465402705
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2059008218
Telematics Module Mercedes W176 W205 W218 Communication Control Unit A2059008218
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 6927025-1
Window Lifter Drive BMW E87 E90 E91 Motor Rear Left 6927025
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6949226-1
2 x BMW E63 E64 DWA Door Alarm System Module Control Unit Set 6949226
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4L0919614B
Audi Q7 4L Navigation Multimedia Control Panel Knob Unit 4L0919614B
Promo price
€550.95
€330.57
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 9221825
BMW E70 E71 Car Infotainment Multimedia Computer Head Unit 9221825
Promo price
€341.95
€205.17
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6931987
BMW 7 Series E65 E66 E67 Control Unit Voice Input System Module 6931987
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9366409
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9366409
Promo price
€94.95
€80.71
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8507202-2
BMW 3 Series E90 E91 LCI 318d N47N 143HP ECU Kit DDE 8507202 CAS3 Key Automatic
Promo price
€265.95
€159.57
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1779008511
Door Module Mercedes W177 W247 Rear Left Right N/O/S Control Unit A1779008511
Promo price
€47.95
€40.76
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2218230050
Mercedes W221 Centre Console Telephone Keypad Control Unit Module A2218230050
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9277818
Antenna Amplifier BMW F23 Cabrio FM Radio Booster Unit Module 9277818
Promo price
€61.95
€52.66
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4280002630
Toyota Hilux Vigo Engine Starter Motor Assembly Unit 03L911024A
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8576341-6
BMW F20 F21 F30 F31 116d 316d 116HP N47N ECU Kit DDE 8576341 + Key + FEM Manual
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9221713
BMW F01 Front Bumper PDC Wiring Loom Cable Harness F02 9221713 9221712
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 3455305-1
2 x Mini R57 R58 R59 DWA Door Alarm System Module Control Unit Set 3455305
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8039827
BMW X5 E70 Front Bumper PDC Parking Sensor Wiring Loom Cable Harness 8039827
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8W8959107D
Audi A5 F5 Rear Hatch Tailgate Boot Lid Control Module Unit ECU 8W8959107D
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7570287
BMW Mini Cooper One R55 R56 R57 Earth Ground Battery Strap Cable 7570287
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8578945-3
BMW F20 118d F30 318d N47N 143HP ECU Engine Contol Unit DDE 8578945 Manual
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9861558-1
Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 9861558
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6916228
Mini Cooper R50 R53 VICS Receiver Control Unit Module Japan 6916228
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9268438
BMW F10 F11 F01 F02 F03 Crash Impact Air Module Central Sensor Unit 9268438
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8V0907451
Audi A3 8V Sun Light Solar Sensor Control Detector 8V0907451
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2219004704
Mercedes-Benz S W221 Comand 6-Changer CD Radio Head Unit DVD Navi A2219004704
Promo price
€854.95
€512.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2475400700
Mercedes W177 Rear Axle Wheel RPM Speed Left N/S Sensor Wire Harness A2475400700
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 3455305-2
3 x Mini R57 R58 R59 DWA Door Alarm System Module Control Unit Set 3455305
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8507908
BMW F20 Gearbox Transmission Harness Wiring Loom Manual 8507908
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8582279-8
BMW F30 F32 F34 GT 320d 420d N47N 184HP Engine Module Unit ECU DDE 8582279
Promo price
€51.95
€44.16
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2048200015
Telephone Cable Mercedes W204 C207 W212 Wiring Adapter Line A2048200015
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2135452040
Mercedes W213 Head Unit Bracket Control Unit Module Holder Mount A2135452040
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2049001206
Mercedes W204 Coupe Door Module Front Left N/S Control Unit A2049001206
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2129009622
Mercedes W212 Fuse Box Relay Rear SAM Control Unit Module A2129009622
Promo price
€51.95
€31.17
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2189015200
Mercedes X218 Air Module Control Unit ECU Module A2189015200
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A0035420219-1
Relay Mercedes W639 W906 5-Pin Black 12V 20A A0035420219 Set X2
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2215402062
Fuel Pump Module Mercedes ML W164 W204 Petrol Control Unit ECU A2215402062
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 3455306-2
4 x Mini R57 Cabrio Convertible DWA Door Alarm System Control Module Set 3455306
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 9252549
BMW F12 Front Seat Control Unit Module Memory ECU 9252549
€66.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7521122
BMW E60 E65 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Starter Motor 7521122
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8519663-14
Mini Cooper D R56 LCI R60 N47N 112HP Diesel Engine Unit ECU DDE 8519663 Manual
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2059006013
Door Module Mercedes W205 Front Right O/S Door Control Module Unit A2059006013
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8387551
BMW 3 Series E46 Battery Positive Cable Fuse Box Base B 8387551
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 03L903023K
Audi A3 8V A4 A5 B8 Alternator Generator Electrical Unit Diesel 03L903023K
Promo price
€61.95
€52.66
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8584816
Engine Wiring BMW G20 G21 X3 G01 B57 Injectors Module Harness Loom 8584816
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 03L906018JR-1
Audi A4 B8 2.0 TDI CJCB Engine Control Unit Module ECU Kit 03L906018JR Manual
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7822015
BMW G20 G21 G26 330d 430d B57P Diesel Starter Cable Wiring B+ 7822015
Promo price
€80.95
€68.81
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2118205885
Mercedes E-Class S-Class W211 W220 Nokia Phone Control Unit Module ECU
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2469003818
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469003818
€332.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 3455306-1
2 x Mini R57 Cabrio Convertible DWA Door Alarm System Control Module Set 3455306
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9252651
BMW 1 2 3 Series F20 F21 F22 F30 Radio Remote Control Receiver 868 MHZ 9252651
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6940588
BMW 5 Series E60 E61 Alarm System Unit Ultra Sonic Module 6940588
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2059005713
Door Module Mercedes W205 Front Left N/S Door Control Module Unit A2059005713
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9185474
Mini Cooper R60 R61 Antenna Aerial Diversity Trap Circuit 9185474
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 1421295
Mini EGS Control Unit Module ECU Programmed 5 Pins 1421295
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A1779005409
Door Module Mercedes C118 W177 H243 Front Right O/S Door Control A1779005409
Promo price
€80.95
€48.57
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0045467540
Mercedes W204 W221 Distributor Box Block Control Unit Relay A0045467540
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 23300JG70A
Nissan Qashqai Diesel Engine Starter Motor Actuator Starter 23300JG70A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6910719
BMW Z4 E85 E86 CD-Changer Bracket Left N/S Holder Mount Carrier 6910719
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8200568535-1
Renault Master 3 Vauxhall Movano B 2.3 DCI Diesel Starter Motor 8200568535
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8573260-2
BMW F20 F21 116d ed Diesel N47N 116HP Engine Control Unit DDE 8573260 Manual
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4G2971228DQ
Audi A6 A7 4G 3.0 TDI Starter Alternator Wiring Harness 4G2971228DQ
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6949228
Mini Cooper R52 Cabrio Convertible DWA Door Alarm System Module Unit 6949228
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2059068501-1
Fuse Box Mercedes W205 S205 W213 Fuse Box Front Relay Control Module A2059068501
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9174269-1
BMW F07 F10 F11 Speakers Amplifier Bracket Holder Mount Unit Module 9174269
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7516376
BMW E65 E66 E67 Electric Valve 735i 745i 735Li 745Li 745LiS 7516376
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. AV6Q6M0
Ford Transit Connect Mk2 Glow Plug Wiring Harness Engine AV6Q6M0
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 9268802
Mini Cooper Countryman R60 Champ 2 Navigation Radio DAB Player Unit 9268802
€132.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 7540369
BMW E46 N46 Wiring Harness Engine Gearbox Module Loom Cable 7540369
Promo price
€94.95
€56.97
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1635450440
Mercedes-Benz M-Class ML W163 Holder Bracket Engine Control Unit A1635450440
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8509036-3
BMW X5 E70 30sd M57N2 286HP Engine ECU Unit DDE 8509036 Automatic
€560.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8636070
BMW 3 F30 LCI 330e B48X Engine Gearbox Module Wiring Cable Loom Harness 8636070
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7634056
Engine Wiring BMW F20 F21 F30 F31 N20 Cable Loom Harness 7634056
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1779005109
Door Module Mercedes C118 W177 H243 Front Left N/S Door Control A1779005409
Promo price
€123.95
€105.36
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A9066800214
Mercedes Sprinter W906 Radio Fan Adapter Cooling Control Unit Module A9066800214
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9111165-PB2
PDC Sensor BMW E81 E82 E87 E88 E90 E91 Ultrasonic Parking SET X4 Platinbronze
Promo price
€51.95
€44.16
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9243667
BMW X3 F25 X4 F26 Rear Door Left Right N/O/S Wiring Loom Cables Harness 9243667
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9259469
BMW X3 F25 Fuse Box Power Distribution Control Unit Module Rear 9259469
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
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
€23.95
€22.75
Free delivery - Tue, Oct 14
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 .