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.
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Part no. 7195197
BMW E88 Convertible Folding Top Roof ECU Module CVM Bracket Holder Mount 7195197
PLN 85.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8T0907468R
Audi A4 B8 Gateway Control Unit Module ECU 8T0907468R
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2044407441
Earth Ground Cable Mercedes W204 W207 W212 W218 Battery Wiring Loom A2044407441
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 6C0915181C
VW Volkswagen Polo 6R Negative Minus Earth Cable HV Battery Harness 6C0915181C
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2189002002
Mercedes X218 CLS350 Automatic Trunk Lid Clossing Control Module A2189002002
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 02Z911023H
Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor 02Z911023H
PLN 85.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4H0951253-1
Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit Set 4H0951253
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A1779000304
Airbag Module Mercedes V177 W177 C118 Air Bag SRS Control Unit ECU A1779000304
PLN 51.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9151516
BMW E60 E63 E64 LCI Body Control Unit Module 9151516
PLN 85.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9314234
BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9314234
PLN 379.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8K0959793N
Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793N
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2139058001
Mercedes C238 W213 Trunk Lid Handsfree Switch Sensor A2139058001
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 95B980654D
Porsche Macan 95B Front Windscreen Lane Assist Kafas Camera 95B980654D
PLN 902.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9231174
BMW 3 4 F30 F32 Touring Amplifier Rear Window Antenna Diversity 9231174
PLN 66.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2059009230
Air Conditioning Module Mercedes W205 C253 A/C Control Unit ECU A2059009230
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 2751617
Mini R56 R57 Battery Valve Breather Vent Hose Pipe R55 2751617 1377745
PLN 37.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8T0971035A
Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side 8T0971035A
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9223682
BMW X5 X6 Series E70 E71 Dashboard Onboard Monitor Display Screen 8,8" 9223682
PLN 303.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1669061202
Mercedes W221 Fuse Box Control Unit Module Relay A1669061202
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8R0907468N
Audi A5 8T Gateway Control Module Unit ECU 8R0907468N
PLN 93.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7928461
BMW G11 G12 G29 G31 G38 Radio Remote Control Receiver Module Unit 7928461
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4L2910401B-1
Audi Q7 4L 3.0 TDI CRCA Quattro Engine ECU Kit Lock + Ignition + Key 4L2910401B
PLN 3,324.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8U0955559
Audi A1 8X A3 8V Windscreen Rain Sensor Control Unit 8U0955559
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 04E907309AC-1
Audi A1 8X 1.4 TFSI CZCA 125HP Engine ECU Kit BCM Lock + Key 04E907309AC Manual
PLN 664.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9383182
BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Unit FEM LR01 9383182
PLN 854.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7P5959107E
Porsche Macan 95B Rear Tailgate Control Module Unit 7P5959107E
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5A18364
BMW F40 Heater Air Conditioning System Control Unit Module ECU 5A18364
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7572873
BMW Z4 E85 E86 Battery Holder Hold Down Bracket 7572873
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 03L906018KR-1
Seat Ibiza 6J IV 2.0 TDI CFHD 143HP Engine Control ECU 03L906018KR Manual
PLN 569.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8W0947356E
Audi A5 S5 F5 Interior Door Panel Courtesy Light LED Wiring Harness 8W0947356E
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A6429000500
Mercedes W204 C320 CDI OM.652.960 Engine Control Unit ECU A6429000500 Automatic
PLN 332.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6994419
BMW G20 Power Distribution Fusebox Cover Fuse Box Terminal 6994419
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 05E907309CB
Audi Q2 GA 35 TFSI 1.5 DXDB Engine ECU Kit Ignition + Key 05E907309CB Manual
PLN 1,424.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. E92-PDC-WIRING-LOOM-HARNESS-REAR-BUMPER-1
BMW E92 LCI PDC Wiring Loom Harness Rear Bumper
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 1K0906093H
Seat Ibiza 6J 1.2 TSI Petrol Fuel Pump Control Unit Relay 1K0906093H
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9166708
BMW E90 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
PLN 284.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7599881-12
BMW E81 E87 LCI Petrol N43 116i 2.0 122HP ECU Kit 7599881 DME CAS3 Key Manual
PLN 663.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9134631
Seat Module BMW E65 E66 Front Seat Control Unit ECU 9134631
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2045407135
Earth Ground Cable Mercedes W204 C207 Line Strap Battery Lead A2045407135
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9387151-1
BMW F30 Hybrid 330e B48X Positive Battery Lead Cable Starter Unit Wiring 9387151
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4F0959792P
Audi A6 C6 Front Door Lock Control Module Unit ECU Passenger Side 4F0959792P
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 03L911021E
Audi A4 B8 Starter Motor Engine Motor Actuator Diesel Bosch 03L911021E
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8616810
BMW 1 2 3 4 Series F20 F21 F22 F23 F30 F31 F32 Battery Cable Connecying Line
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A0005401203
Mercedes GLC 300e X253 Coupe Hybrid Electrical Battery Wire A0005401203
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A0005459812
Mercedes Vito W447 W213 OM654 Power Distribution Relay Unit Module A0005459812
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9372556
BMW G11 Door Wiring Harness Rear Left Right Door N/O/S Wiring Loom 9372556
PLN 108.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4M0959793H
Audi A5 F5 A4 B9 Front Door Control Module Unit ECU Driver's Side 4M0959793H
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8058634
Engine Wiring BMW X3 M F97 X4 M F98 Loom Harness Ignition Module 8058634
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2139006911
Mercedes W213 C238 Telematic Charging Phone Control Module A2139006911
PLN 161.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 1K0953549AE
VW Golf Mk5 Steering Angle Steering Wheel Column Control Module ECU 1K0953549AE
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8605144
BMW F20 F21 LCI F23 F30 F32 F33 Engine Wiring Loom Harness Cable 8605144
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8385498-1
BMW 7 Series E65 E66 E67 Support Bracket Navigation Computer 8385498
PLN 46.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9240508
Fuse Map BMW X5 X6 E70 E71 Assignment Grouping Card 9240508
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8576333-3
BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Kit DDE 8576333 Key FEM
PLN 902.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1245401850
Mercedes W124 M103.940 Engine Fuse Box Module Unit A1245401850
PLN 332.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A0015424423
Parktronic Screen Mercedes W207 W212 Front Parking Sensor Display A0015424423
PLN 75.95
Free delivery - Wed, Jan 14
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 - Wed, Jan 14
If paid before 14:00
Part no. 7512967-1
Mini Cooper R50 R52 R53 Base B Terminal Point Engine Compartment 7512967
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9803844-4
Aerial Roof Antenna Mini Cooper Countryman R58 R60 R61 Base Module 9803844
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2129003508
Mercedes W207 W906 Fuel Pump Control Unit Module ECU A2129003508
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6960000
BMW X5 Series E53 Front Bumper PDC Loom Cables Wiring Set 6960000
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2049007508
Mercedes W204 Display Screen Monitor Radio Sat Nav Navigation Unit A2049007508
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8678964
BMW X1 F48 Mini Cooper F55 F56 Engine Gearbox Module Wiring Cable Loom 8678964
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2229002009
Mercedes W205 W222 Door Module Control Unit Rear Left N/S A2229002009
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8809737
PDC Wiring BMW X4M F98 G02 Rear Bumper Parking Assistance Sensor Harness 8809737
PLN 379.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5Q0937084AG
Volkswagen Golf MK7 Audi A3 8V Body Control Comfort Unit Module BCM 5Q0937084AG
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 1405523
Mini One D R50 R53 Cooper S Fuse Box 1405523
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8506444-1
BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key
PLN 1,139.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4F9035225D
Audi A6 C6 Antenna Amplifier Control Unit Module ECU 4F9035225D
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7638194
BMW F20 F21 F22 F30 F31 Engine Starter Motor N20 N26 N55 Petrol 7638194
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2465401350
Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2465401350
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7598857
Mini R55 R56 Cooper S EGS Module Automatic Gearbox ECU Control Unit 7598857
PLN 332.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9289590
BMW X5 X6 E70 E71 Antenna Amplifier Module Trap Circuit 9289590
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 1388911-3
BMW E36 E38 E85 Mini R52 R57 5x Change-Over Contact Relay Violet Set 1388911
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. E92-PDC-WIRING-LOOM-HARNESS-REAR-BUMPER-2
BMW E92 E92N LCI PDC Wiring Loom Harness Rear Bumper
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2045458401
Mercedes W204 Fuse Box Terminal Connection Unit A2115452301
PLN 854.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A0325453132
Gearbox Module Mercedes SLK R171 Automatic Transmission Unit EGS A0325453132
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8574024
Engine Wiring BMW F30 F31 335dX N57Z Automatic Gearbox Cable Harness 8574024
PLN 151.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6853705
BMW X6 E71 ICM Integrated Chassis Management Control Unit Brakes 6853705
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. P1XT-18T806-AC
Volkswagen VW Amarok NF Audio Sound System Amplifier Unit P1XT-18T806-AC
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6R0915181E
Audi A1 8X Battery Cable Loom Harness Wiring Negative Terminal 6R0915181E
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9383181
BMW F20 F21 F22 F30 F31 F32 F36 Fuse Box Body Module Control Unit FEM 9383181
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8518268-2
BMW E90 E91 LCI 318d Diesel 143HP N47N ECU Kit DDE 8518268 + CAS3 + Key Manual
PLN 664.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9890599
BMW F90 M5 G11 G30 Air Module Crash Control Unit 9890599
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1715409245
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715409245
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9225619
BMW F10 Electronic Front Seat Memory Module Control Unit ECU 9225619
PLN 284.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9338298
BMW F20 F21 F30 F33 KAFAS 2 Camera Lane Assist Module Control Unit ECU 9338298
PLN 100.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9243637
BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9243637
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6878191
Air Module BMW F01 F02 LCI F10 F11 F13 ECU ICM Control Unit 6878191
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9438731
BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Unit FEM LR01 9438731
PLN 617.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5P0951171C
Seat Altea 5P1 Interior Ultrasound Alarm Sensor Module Unit 5P0951171C
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2469000717
Mercedes C117 X156 All Wheel Drive Control Unit Module ECU MFA A2469000717
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6CIT-10300-BC
Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6CIT-10300-BC
PLN 284.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8378113
BMW Z4 Series E85 E86 Interior Fuse Box 8378113
PLN 66.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9323554
BMW 1 3 Series F20 F21 F30 Operating Unit Audio FBM Control Unit Panel 9323554
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8368231
BMW E46 Door Speaker Tweeter Front Left N/S 8368231
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8577764-1
BMW F10 F11 520d Diesel N47N 184HP ECU Kit DDE 8577764 + Key + CAS4 Automatic
PLN 1,168.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 0AM911023R
Audi A3 8V 1.4 TSI Petrol Starter Motor Engine Actuator Unit 0AM911023R
PLN 94.95
Free delivery - Wed, Jan 14
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 - Wed, Jan 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 .