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

Part no. A2059067200-1
Mercedes W205 S205 W213 Fuse Box Front Relay Control Unit Module A2059067200
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. A0009008718
Climate Control Module Mercedes W205 W213 Air Conditioning A/C Unit A0009008718
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9274428-1
Parking Sensor Mini Cooper F54 F55 F56 F57 F60 PDC Ultrasonic Black 9274428 SET
PLN 332.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 7286050
BMW F20 Control Unit Module Wing Mirror Power Fold 7286050
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8W0906093D
Audi A4 B9 Fuel Pump Control Unit Module ECU 8W0906093D
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2118210197
Mercedes E-Class W211 Rear Door Wiring Loom Harness Rubber Grommet A2118210197
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 8W0906259N-1
Audi A5 F5 45 TFSI DKNA 245HP Quattro Engine ECU Kit 8W0906259N Gateway + Key
PLN 1,424.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8803368
Display Screen BMW F45 F46 Central Information Navigation Monitor 6,5" 8803368
PLN 664.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6820386
Mini F54 F55 F56 Operating Unit Audio Radio Control Switch Panel 6820386
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8574372-3
BMW F30 330d F32 430d N57N 258HP Engine Unit ECU Kit DDE 8574372 Key FEM
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 896500D040
Toyota Yaris MK1 Power Steering Column Control Unit Module 896500D040
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 2100493N
Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 2100493N
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. A0009007126
Air Conditioning Module Mercedes W205 W213 C253 A/C Control Unit ECU A0009007126
PLN 170.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8512047-4
BMW E90 E91 LCI N47N 320d 184HP Engine Control Unit ECU DDE 8512047 Automatic
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. YUCEL-Y12-6
Yuasa Yucel Burglar Alarm Battery Rechargeable Unit Y1.2-6 6V 1.2Ah C20
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2535400901
Starter Cable Mercedes W205 GLC X253 M274 Electrical Wiring Harness A2535400901
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6864206
Air Module BMW F20 F21 F30 F31 F32 ECU ICM Plus Control Unit 6864206
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A1729060205
Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205
PLN 379.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9123605
BMW X5 Series E70 Cable Glove Compartment Wiring Loom Harness 9123605
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8573260-8
BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8573260 + Key + FEM Manual
PLN 1,709.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2469004313
Gearbox Module Mercedes W176 Automatic Transmission Unit ECU A2469004313
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 7P6907357B
Volkswagen Golf Mk7 Headlight Head Lamp Range Control Unit Module ECU 7P6907357D
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8644492
Engine Wiring Mini F56 F60 BMW F45 F46 Petrol Sensor Module 2 Harness 8644492
PLN 218.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9177195
BMW E65 E66 X5 E70 X6 E71 Video TV Tuner Module Control Unit ECU 9177195
PLN 1,044.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8W6971036G
Audi A4 B9 A5 F5 Front Door Wiring Harness Cable Passenger Side 8W6971036D
PLN 180.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9148267
BMW 3 Series E93 Seat Control Unit Module FSV 7.11.0 9148267
PLN 398.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8355056
BMW 5 X5 Series E53 Fuel Tank Flap Actuator 8355056
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 8585727
Wiring BMW F21 F30 F34 F36 Diesel N47N Engine Gearbox Module Harness 8585727
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2199001100
Mercedes W219 Head Unit CD Player Navigation COMAND Radio Audio Unit A2199001100
PLN 1,139.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 1440315
BMW X5 Series E53 Wiring Loom Harness Engine Gearbox Module Petrol M62 Automatic
PLN 208.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 4H0959591A
Audi A8 D4 4H Sunroof Wind Deflector Module Control Unit 4H0959591A
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A1768200704
Sunroof Wiring Mercedes C117 W176 Panoramic Motor Cable Harness A1768200704
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. A2229001809
Mercedes W205 W222 Door Module Front Left N/S Control Unit ECU A2229001809
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2055409750
Door Harness Mercedes W205 Rear Left N/S Door Wiring Loom A2055409750
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8K0971104AE
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AE
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8615581
BMW 3 F30 LCI 330e B48X Control Unit Bracket Holder Mount 8615581
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8571350
BMW 1 5 Series F10 F11 F20 F21 LCI B47 Starter Acoustic Vibration Plug 8571350
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. A2129000217
Mercedes W212 Radio Head Unit Navi CD Player Control Unit A2129000217
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 130831041000
Audi A5 8T Headlight Inner LED Inner Module Unit 6NHM0000 130831041000
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2789060600
Mercedes W166 R172 W205 C207 W212 C216 Engine Starter Motor 12V A2789060600
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8K0959793S
Audi A4 B8 Front Door Control Module Unit ECU 8K0959793S
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 2753031
Mini Wiring Loom Harness Cable Plug Connector Socket Input 2753031
PLN 37.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 8W1959595D
Audi Q5 FY Rear Door Control Module Unit Left Right N/O/S 8W1959595D
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 9186211
BMW X5 E70 M Audio Professional Radio CD Player Navigation Head Unit 9186211
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8T0959793K
Audi A4 B8 A5 8T Door Control Unit Module Front Driver's Side 8T0959793K
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 6960308
BMW 1 Series E88 Convertible Rear Bumper FM Radio Aerial Antenna 6960308
PLN 65.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6887358
BMW F10 F11 EMF Module Parking Brake Unit Electric Control 6863800
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 8T0959792P
Audi A5 8T Front Door Control Module Right O/S Passenger Side 8T0959792Q
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 4H0035225
Audi A8L 4H Aerial Antenna Amplifier AMP Booster Module 4H0035225
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9228914
Radio CD Player BMW F10 F11 F13 Navigation ECE Sat Nav Head Unit 9228914
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 4F0959792R
Audi A6 C6 Front Door Left N/S Module Unit Control ECU 4F0959792R
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 8602802
BMW i3 I01 Hybrid Rex Engine Wiring Cable Harness Bracket Mount Trim 8602802
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 9208452
Wiring BMW F07 Front Bumper PDC Wiring Park Assist Sensor Harness 9208452
PLN 284.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8368932
BMW E39 Alarm Sensor Comfort Control Module Unit ECU 55892110
PLN 100.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6C0907159B
Volkswagen Polo 6C Body Sound Impact Control Module ECU 6C0907159B
PLN 118.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2469064201
Antenna Amplifier Mercedes X117 W176 W205 Rear Aerial Module A2469064201
PLN 127.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6929701
BMW 7 Series E65 E66 Alarm System Ultra Sonic Module 65756929701 6929701
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. A2219004704
Mercedes-Benz S W221 Comand 6-Changer CD Radio Head Unit DVD Navi A2219004704
PLN 2,849.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9315151
BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9315151
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 06H911021A
Audi A5 8T 2.0 TFSI Petrol Engine Starter Motor Actuator 06H911021A
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6C1T-14A076-BB
Ford Transit Mk7 Fuse Box Cover Electrical Unit Housing Trim Cap 6C1T-14A076-BB
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9267535
BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V9 Lear 9267535
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A6541592501
Mercedes W213 OM654 Engine Wiring Cable Cover Duct Bracket Channel A6541592225
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8506438-1
BMW E81 E87 LCI E90 E91 120d 320d N47 177HP ECU KIT DDE 8506438 CAS 3 Key
PLN 655.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 7607454
Battery Insert BMW F13 F12 F06 Battery Crashpad Foam Insulator 7607454
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 8S0907468D
Audi TT FV Mk3 8S Gateway Module Interface Data Bus Control Unit 8S0907468D
PLN 184.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8482940
BMW F30 LCI G11 G30 Battery Cell Supervision Circuit Module Unit 8667593
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. KV6T10C679BC
Ford Transit Connect Battery Cable Negative Lead Terminal Harness KV6T10C679BC
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A0009062822
Alternator Generator Mercedes W207 W212 W906 Engine Diesel 200A 14V LRA03818
PLN 379.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6867168
BMW 1 2 Series F20 F21 F30 F31 N13 N47N ECU ICM Control Unit Module 6867168
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9362398
BMW F20 F21 F30 F31 F32 F45 Body Control Unit Module REM 9362398
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. XS7U-11000-C4A
Ford Focus Mondeo Escort 1.8 Petrol Engine Motor Starter XS7U11000C4A
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9807756
Mini Cooper R60 Wiring Passenger Loom Front Door Cables Left N/S 9807756
PLN 46.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 9123290
BMW E81 E87 E90 MULF Hands Free Electronics Control Module 9123290
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 5QS919298
Audi A3 S3 8Y VW Caddy SB Mk4 Parking Sensor Module Control Unit 5QS919298
PLN 569.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8617239
Gearbox Module Mini R55 R56 LCI R60 Automatic Transmission Unit EGS 8617239
PLN 275.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9224588
BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588
PLN 617.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 9221462
BMW F01 Front Seat Control Unit Module ECU Left Temic 9221462
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. DE8T19H463DC
Ford Transit Connect Mk2 Rain Sensor Control Unit Module FoMoCo DE8T-19H463-DC
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 3457434-1
Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Head Unit 3457434
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6700003892
Smart Fortwo C453 Power Steering Column Control Unit Module 6700003892
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 5Q0915181E
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181E
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 9356156
External Ignition Base BMW F20 F30 F32 F33 Power Terminal Distribution 9356156
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. A0009050254
Mercedes W212 Negative Battery Cable Terminal Wiring A0009050254
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 0AM911022C
Volkswagen Golf Mk8 Engine Starter Motor Assembly Unit 0AM911022C
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 80A941823A
Audi Q5 FY Positive Battery Terminal Potential Distributor 80A941823A
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A9068270005
Mercedes W639 W906 Voltage Stabilizer Control Unit Module A9068270005
PLN 66.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 5WA919275B-KYG
Audi A3 S3 8Y PDC Parking Distance Sensor 5WA919275C Kyalami Green - Z6A
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 4F0035503E
Audi A4 B8 Transmitting Receiving Unit Road Toll System 4F0035503E
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. A2118703485
Mercedes W211 Door Module Rear Right O/S Control Unit ECU A2118703485
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. A1644407110
Mercedes W164 Wiring Loom Cable Harness Door Rear Left Right A1644407110
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 6820235
BMW F20 F30 Mini F55 F56 Control Unit Air Conditioning Module 6820235
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. BK2T18D815GD-1
Ford Transit Custom MK8 Radio Stereo Audio USB Head Unit Panel BK2T18D815GD
PLN 180.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 6923215
BMW E46 Inclination Indicator Alarm Tilt Sensor Module 6923215
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. MB3T-14N143-MC
VW Amarok Mk2 Negative Earth Battery Wiring Loom Cable Connector MB3T-14N143-MC
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 4L0959795B
Audi Q7 4L Door Control Module Unit ECU Rear Left N/S 4L0959795B
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8580389
BMW F40 F45 X1 F48 Mini F55 F56 F57 F60 Diesel Engine Starter Motor 8580389
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00

Part no. 8K0941824A
Audi A1 A4 A6 A7 A8 Fuse Box Connector Socket Module Unit 8K0941824A
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00

Part no. 9364638
Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9364638
PLN 522.95
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 .