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
-40%
Part no. 9873895
BMW F40 Crash Control Unit Air Module ECU Continental 9873895
Promo price
€123.95
€74.37
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 1439743
BMW E46 X5 E53 E60 E65 X3 E83 Z4 E85 Z3 Cable Alternator Starter 1439743
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6864927
BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Air Module 6864927
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 6821404
High Voltage Cable BMW F45 Mini F60 Hybrid Plugin Alternator 6821404
Promo price
€332.95
€199.77
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2038219751-2
Mercedes W203 CL203 Roof Alarm Motion Sensor Cover Trim Black A2038219751
Promo price
€24.95
€23.70
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A2039000100
Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2039000100
€113.95
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 6933162
BMW E65 E66 On-board Navigation Display Monitor Screen 8,8" 6933162
Promo price
€47.95
€28.77
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A0055461240
Mercedes W169 W245 Distributor Box Front Control Unit Module A0055461240
€23.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7533283
BMW X3 Z4 Series E83 LCI E85 E86 Cover Top Power Distribution Fuse Box 7533283
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2055406621
Starter Cable Mercedes W205 GLC X253 Electrical Wiring Harness A2055406621
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 9895416
BMW F20 F21 LCI 118i B38 136HP Engine ECU Kit DME Manual Control Unit 9895416
€170.95
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A0009004434-2
Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
€142.95
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8678968
Engine Wiring Mini F56 F60 BMW F45 F46 Petrol Sensor Module 1 Harness 8678968
Promo price
€189.95
€113.97
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 5N0035342G
VW Volskwagen Polo 6R Multimedia Electronic ECU Control Unit Module 5N0035342G
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7951288
BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 7951288
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6920469
BMW E65 E66 E67 Sensor A-pillar Right Airbag 65776920469 6920469
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 4E0959655K
Audi A8 4E S8 D3 SRS Bag Control Air Module Unit Bosch 4E0959655K
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9389115
Mini Countryman R60 CAS3 Control Unit Key Reading Module 9389115
Promo price
€94.95
€80.71
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2218702086
Mercedes W221 Rear Seat Control Module Unit ECU A2218702086
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7519401
BMW 5 Series E60 E61 Positive Battery Starter Alternator Wire Cable 7519401
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 7570488
Mini Cooper One R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 7570488
€23.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2049000300
Mercedes W212 Media Interface Control Unit Module Communication A2049000300
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2129004314
Door Module Mercedes W204 W212 Front Right O/S Control Unit A2129004314
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A0061519801
Mercedes W204 W212 W251 Starter Motor 642872 Diesel Engine Starter A0061519801
€56.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2049005601
Mercedes W204 S204 Estate SAM Control Unit Module Rear A2049005601
Promo price
€37.95
€32.26
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9250458
BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9250458
Promo price
€56.95
€48.41
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9157156
Body Gateway Module BMW E60 E61 LCI E63 E64 ECU Control Unit 9157156
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6933529
BMW 5 Series E60 E61 Centre Console Switch Centre DSC 6933529
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6842986
BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 6842986
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A0038208426
Crash Sensor Mercedes ML W164 W221 Front Rear Impact Airbag Unit A0038208426
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 8T0907468M
Audi A5 8T Central Gateway Module ECU Control Unit Lear 8T0907468M
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9261598
BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Valencia Orange Metallic B44
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 9314234
BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9314234
Promo price
€113.95
€68.37
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8S0820043
Audi TT FV A/C Air Condition Climate Control Module Unit ECU 8S0820043
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 6882963
Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU ICM Control Unit 6882963
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 7394466
BMW F10 F11 X5 F15 LCI F32 F33 Adblue Module Control Unit ECU SCR 7394466
Promo price
€94.95
€80.71
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6935598
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Alpinweiss White
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9226882
BMW F20 F21 Rear Antenna Aerial Amplifier AM/FM DAB 9226882
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8582279
BMW F30 320d ed Diesel N47N 184HP Engine Control Unit ECU DDE 8582279
Promo price
€56.95
€34.17
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6925964
BMW X3 E83 Drive For Window Lifter Motor Front Right O/S 6925964
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9247481
BMW X3 F25 Control Module CAS Unit ECU 20dX Diesel N47N 9247481
Promo price
€113.95
€96.86
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2075454440
Mercedes-Benz E-Class A207 Convertible Control Unit Module Bracket Trunk
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 7795021
BMW E60 E61 E63 LCI Earth Cable Electrical Battery Wiring 7789757
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6867168
BMW 1 2 Series F20 F21 F30 F31 N13 N47N ECU ICM Control Unit Module 6867168
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9231466
BMW 2 3 4 Series F22 F30 F32 Antenna Amplifier Module Trap Circuit 9231466
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 7936364
Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936364
Promo price
€66.95
€40.17
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 6846905
BMW 1 2 Series F20 F21 F23 LCI Top Hifi Audio Amplifier Harman Kardon 9307293
€284.95
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 3449686
Mini Cooper R55 R56 R57 Passive Go Module Control Unit 3449686
€23.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9358302
Mini 1 2 3 Series F20 F21 F30 LCI F55 F56 Compensator LTE ECE 9358302
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. A6429002900-3
Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
Promo price
€132.95
€79.77
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A0035420219-3
Mercedes W639 W906 Relay 5-Pin Control Unit 12A Blue A0035420219
€23.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9350313
BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9382417
BMW 1 2 3 5 F10 F20 F23 F30 Bluetooth Teleservices GPS Telematics Module 9382417
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2135400200
Mercedes W205 W213 W238 Fuse Box Cover Control Unit Holder Bracket A2135400200
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. A1408207126
Mercedes C140 Blinker Hazard Trailer Relay Module Control Unit A1408207126
Promo price
€227.95
€136.77
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8R0971104AC
Audi Q5 8R Rear Bumper PDC Parking Sensor Wiring Harness Loom 8R0971104AC
Promo price
€47.95
€40.76
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9217234
Module Bracket BMW X3 F25 X4 F26 Control Unit Holder Carrier 9217234
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6915047
BMW E46 E39 E38 E83 E53 E85 E86 Control Unit Voice Input System Module 6915047
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 9383063
Mini Cooper F55 F56 Navigation DAB Head Unit Sat Nav Professional 9383063
Promo price
€233.95
€140.37
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9131649
Driver Seat Cable BMW E81 E82 E87 E88 Sensor Mat Wiring 9131649
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2139008822
Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9226357-1
Loudspeaker BMW F20 F30 Top-HiFi Door Speaker Tweeter Set Harman Kardon 9226357
Promo price
€42.95
€36.51
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8578495
Engine Wiring BMW F30 F31 330d F32 F36 430d N57N Loom Harness Cable 8578495
Promo price
€66.95
€56.91
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6930302
BMW E60 E61 E63 E64 Actuator Ventilation Motor Heater Right O/S 6930302
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9177118
CD Changer BMW X5 E70 X6 E71 Mini R55 R56 R57 6 Disc Changer Unit 9177118
Promo price
€37.95
€32.26
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6949922
BMW 3 5 E46 E61 Touring Amplifier Soft Antenna Suppression Filter 6949922
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A9079004105
Air Module Mercedes Sprinter W907 W910 Control Module ECU A9079004105
Promo price
€85.95
€73.06
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2128204713
Seat Wiring Mercedes W212 Front Loom Harness Passenger Side A2128204713
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2129001711
Mercedes W212 PDC Parking Distance Control Unit Module Sensor A2129001711
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2469000717
Mercedes C117 X156 All Wheel Drive Control Unit Module ECU MFA A2469000717
Promo price
€47.95
€40.76
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6793850
Adapter Lead Wire BMW F20 F21 F22 F23 F30 F31 F32 F33 VDC Cable Harness 6793850
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 9352750
BMW X6 F16 F86 Camera Kafas Front Windscreen Camera Module 9352750
Promo price
€51.95
€31.17
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. A2118700526
Driver Seat Module Mercedes R171 W203 W211 Memory Control Unit A2118700526
Promo price
€37.95
€32.26
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9259581
BMW X3 F25 Map Card Fuse Box Grouping Diagram 9259581
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 9124952
BMW 3 Series E90 E91 E92 E93 LCI Cable Duct Battery Lead Rear 9124952
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9297787
BMW F10 F20 F30 Battery For Telematics Control Unit Module 9297787
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 6792659
BMW X5 E70 X6 E71 Control Unit Dynamic Drive Front Axle Suspension 6792659
€32.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 8602988
MINI F54 F55 F56 F57 F60 Cable Alternator Starter Wire 8602988
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 4F0959795N
Door Module Audi A4 B8 A6 C6 Rear Unit Control ECU Left N/S 4F0959795N
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 5Q0937084DR
Audi Q2 GA Body Control Comfort Unit Module BCM Unit ECU 5Q0937084DR
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6C1T-14A120-AD
Ford Transit Mk7 Starter Motor Wiring Cable 2.2 TDCi 6C1T-14A120-AD
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9207913
BMW F20 F21 F22 F30 F31 F32 F33 F36 G30 Fan Motor Relay 9207913
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. YC1A14B321CC
Ford Transit MK6 Restraints Control Module Air Module Unit YC1A14B321CC
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2128204185
Mercedes W204 W212 Door Module Control Unit Module Rear Right O/S A2128204185
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8582279-3
BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8582279 Keys FEM
Promo price
€222.95
€133.77
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A2048707658
Mercedes W204 Radio Control Function Button Knob Controller Unit A2048707658
€47.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 6799712
BMW F10 F11 ICM Management Control Unit Module DSC Brakes 6799712
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2118209126
Mercedes-Benz C E Class W203 W211 Alarm Anti Theft System Control Module Unit
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. 4F1862335
Audi Q7 4L Bluetooth Interface Telephone Control Module ECU Unit 4F1862335
€66.95
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2028281114
Mercedes-Benz C CLK W202 W208 Alarm Control Module Bracket Holder A2028281114
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. A2045400440
Battery Bracket Mercedes W204 W207 Battery Mount Support Holder A2045400440
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
Part no. A2749061600
Mercedes W204 W205 W212 A207 X253 Engine Starter Motor Petrol Denso A2749061600
€47.95
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 3448466
Mini Cooper R55 R56 Control Unit Module Passive Go 3448466
Promo price
€28.95
€24.61
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8517874
BMW F20 F21 F30 116d 316d Diesel N47N Engine Control Unit ECU DDE 8517874 Manual
Promo price
€32.95
€28.01
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8678974
Engine Cable BMW F40 X1 F48 Mini F55 F56 Injector Wiring Loom Harness 8678974
Promo price
€56.95
€34.17
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 1J0973332A
Audi RS4 B8 Cable Loom Wiring Plug Socket 2 Pins 1J0973332A
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-5%
Part no. 9118108
BMW 1 Series E81 E82 Wiring Set Door Co-driver 9118109
Promo price
€23.95
€22.75
Free delivery - Fri, Oct 24
If paid before 14:00
-40%
Part no. 8W0959655P
Audi A4 B9 Air Module System Control Sensor ECU Unit 8W0959655P
Promo price
€189.95
€113.97
Free delivery - Fri, Oct 24
If paid before 14:00
-15%
Part no. 8510221-3
BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key
Promo price
€151.95
€129.16
Free delivery - Fri, Oct 24
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 .