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. A2129060205
SAM Module Mercedes W207 A207 C207 Rear Control Unit ECU A2129060205
PLN 427.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2128300008
Fan Blower Mercedes W212 Comand Navi CD Control Unit Module Cooler A2128300008
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9283526
Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9283526
PLN 902.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8J0951177
Audi TT 8J Interior Roof Alarm Motion Ultrasonic Sensor 8J0951177
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 0281003028
VW Volkswagen Crafter I Glow Plug Relay Module Unit 0281003028 07Z907281
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A9066800214
Mercedes Sprinter W906 Radio Fan Adapter Cooling Control Unit Module A9066800214
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4H0907801H
Parking Brake Module Audi A6 C7 A7 4G A8 4H Handbrake Control Unit 4H0907801H
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2055404596
Mercedes W205 Electrical Ground Line Wire Earth Cable A2055404596
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8517874-8
BMW F20 118d F30 318d N47N 143HP Engine ECU Kit DDE 8517874 + Key + FEM + Lock
PLN 854.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8P0971085A
Audi A3 8P Rear Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085A
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2075454440
Mercedes-Benz E-Class A207 Convertible Control Unit Module Bracket Trunk
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A1645400762
Mercedes W164 W211 C219 Tyre Pressure Monitor Control Unit Module A1645400762
PLN 56.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A0009051910
Battery Cable Mercedes W177 W247 Negative Lead Terminal Harness A0009051910
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8W0971553
Audi A4 B9 Front Seat Side Air Module Wiring Harness Loom Cable 8W0971553
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2229007109
SAM Module Mercedes C205 GLC X253 Coupe Rear Control Unit A2229007109
PLN 120.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9238195
Fuse Box Grouping BMW F10 F11 F12 Fuse Placement Map Card Diagram 9238195
PLN 37.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9387561
Head Unit BMW I3 I8 Mini F56 Navigation Sat Nav DAB High Control Module 9387561
PLN 1,519.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4G8959792G
Audi A6 C7 Front Left N/S Door Lock Control Module Unit ECU 4F0959792T
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 6970086
BMW 5 6 Series E60 E61 E63 LCI Cable Set Start / Stop Switch Wiring Loom 6970087
PLN 37.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4M0035454B
Audi A4 B9 Dashboard Loudspeakers Tweeter Speaker Front 4M0035454B
PLN 89.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A6519007401-2
Mercedes W204 C250CDI Blue Efficiency OM651.911 204HP Engine ECU A6519007401 Key
PLN 759.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4G8959792A
AUDI A7 4G8 Door Control Module Front Right O/S Passenger Side 4G8959792A
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A1685405008
Mercedes A-Class W168 Door Cable Harness Wiring Loom Front Right A1685405008
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4L0919614B
Audi Q7 4L Navigation Multimedia Control Panel Knob Unit 4L0919614B
PLN 2,089.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9322532
Gateway Module BMW F01 F10 F11 F12 Central Body Control 9244262
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7PP907279CT
Porsche Macan 95B Body Control Unit Module BCM 7PP907279CT
PLN 807.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8X0971687C
Audi A1 8X Rear Door Harness Left N/S Wiring Loom Cable 8X0971687C
PLN 180.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5A0E219
Adblue Module BMW F40 F44 F45 X1 F48 Control Unit ECU SCR 5A0E219
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4M0971228DH
Audi Q7 4M Q8 Mk1 Starter Motor Wiring Harness Cable Line 4M0971228DH
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9290621
BMW F33 F83 M4 Convertible Top Phone Antenna Aerial Module CTM Unit 9290621
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9338800
iDrive Control Unit BMW F10 F20 F30 Touch Controller Module ECU 9338800
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9276009
BMW F07 GT Rear Antenna Aerial Amplifier AM/FM DABIII FBD2 868MHZ 9237057
PLN 664.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 1K3959857B
Volkswagen Polo 6R Golf Mk6 3-Door Window Lifter Switch Driver's Side 1K3959857A
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9261095
BMW 7 Series F01 F02 LCI Antenna Aerial Noise Suppression Filter 9261095
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9267205-2
Junction Box BMW X1 E84 ECU Body Control Module H2 PL2RR JBBFE IIIR 9267205
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8K5035570
Audi A4 B8 Aerial Antenna Disturbance Suppressor 8K5035570
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A0035420219-1
Relay Mercedes W639 W906 5-Pin Black 12V 20A A0035420219 Set X2
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4K1907594CB
Audi S3 8Y VW Golf Mk8 Sun Roof Module Control Unit ECU 4K1907594CB
PLN 227.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8369504
BMW 5 E39 Saloon Radio Signal Antenna Amplifier Coaxial Cable 8369504
PLN 65.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1695406409
Mercedes W169 W245 Battery Earth Negative Cable Wiring Loom A1695406409
PLN 37.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7843332
Engine Wiring BMW F10 M5 F12 M6 Loom Harness Injection Valve Cyl. 5-8 7843332
PLN 522.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9365837
BMW F20 F21 F22 F30 F31 Head Unit Basic Media Headunit 9365837
PLN 664.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9286953
BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 9286953
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8678968
Engine Wiring Mini F56 F60 BMW F45 F46 Petrol Sensor Module 1 Harness 8678968
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5P0035225A
Seat Leon 1P Altea Antenna Amplifier Booster 5P0035225A
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 6927706
BMW 5 6 Series E60 E63 E64 Tubing Duct Battery Cable Lead Positive Underfloor
PLN 18.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8S0971365F
Audi TT FV Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8S0971365F
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9866982
BMW F20 F22 F30 F32 REM Rear Electronic Module Fuse Box Control Unit V5 9866982
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8380407-1
BMW X5 E53 Power Distribution Fusebox Cover Fuse Box 8380407
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5WB959107B
Audi Q2 GA Rear Boot Trunk Lid Tailgate Control Unit Module ECU 7367747
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4E0035654A
Audi A6 C6 MMI Multimedia Navigation Control Head Unit 4E0035654A
PLN 1,073.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 443937105A
VW Volkswagen Audi Skoda Seat Little Fuse Amp 30A 12V 443937105A
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8240500
Wiring Loom Cable BMW E46 X5 E53 X3 E83 Seat Occupancy Sensor 8240500
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2125407605
Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2125407605
PLN 46.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 3456872
Mini Cooper R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456872
PLN 1,092.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2215401833
Mercedes W221 Door Harness Left Right N/O/S Rear Door Wiring Loom A2215401833
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7587548-5
Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS3 + Key Manual
PLN 2,374.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. K515B-K212
Chip Power Chiptuning Box GS2 K515B-K212 Control Unit Module Tuning Set
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2229000016
Entry Module Mercedes C253 W205 W213 C238 Keyless Go Control Unit A2229000016
PLN 236.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6960803
BMW E65 E66 E67 Control Unit Voice Input System Module 6960803
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A1636880035-1
Mercedes-Benz M-Class ML W163 1 Fuse Box Relay Lid Cover Trim A1636880035
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2469002616
Mercedes W176 W246 PDC Parking Distance Sensor Control Unit Module A2469002616
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9321023
BMW F45 X1 F48 Mini F55 F56 B+ Junction Terminal Power Distribution Box 9321023
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2198203526
Mercedes CLS W219 Door Module Rear Left N/S Control Unit A2198203526
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8654460-2
Mini Cooper F54 F55 136HP Petrol B38 Engine ECU Kit DME 8654460 + BDC + Key
PLN 1,519.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1694710141
Mercedes W169 W245 Fuel Pump Cable Harness Bracket Mount Trim A1694710141
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8639582-2
BMW F20 M135i F22 M235i F30 335i N55 Engine Unit ECU DME 8639582 Manual
PLN 1,614.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7L5919283B
Porsche Cayenne 9PA PDC Parking Sensor Control Module Unit Controller 7L5919283B
PLN 379.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 2755095
Mini Clubman R55 Amplifier Holder System HiFi Stereo Audio 2755095
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8387551
BMW 3 Series E46 Battery Positive Cable Fuse Box Base B 8387551
PLN 37.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A1697220180
Mercedes-Benz A-Class W169 Door Plug Cover Trim Insert Blank Seal A1697220180
PLN 46.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 9381114
BMW F20 F21 F30 F31 F32 Mini F56 F57 Seat Control Unit Module Heating 9381114
PLN 56.95
Delivery - Wed, Jan 14
If paid before 14:00
-20%
Part no. 7253188-2
BMW E92 Seat Covering Panel Sports Left Right Thigh Support Cover Black Leather
Promo price
PLN 94.95
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8T0907468M
Audi A5 8T Central Gateway Module ECU Control Unit Lear 8T0907468M
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2048702426
Mercedes W204 Door Module Rear Left N/S Control Unit Module A2048702426
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A1775405501
Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775405501
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 39113-2A511
Kia Ceed I 1.6 CRDI 115HP D4FB Diesel Engine Control ECU 39113-2A511 Manual
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6821404
High Voltage Cable BMW F45 Mini F60 Hybrid Plugin Alternator 6821404
PLN 1,424.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9247467-1
BMW E92 LCI Body Control Module Unit PL2RR JBBFE L1 61359247467 9247467
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2709000900-7
Mercedes W246 B180 270.910 122HP BlueEffi Engine ECU A2709000900 Automatic
PLN 1,329.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 83F971104F
Audi Q3 F3 Rear Bumper PDC Wiring Loom Cabling Parking Sensor 83F971104F
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1729009302
Mercedes W212 W221 Media Interface Control Unit Module A1729009302
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7939168
Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 7939168
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7L0937503
Volkswagen Touareg 7L Fuse Box Relay Control Unit Module 7L0937503
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9264973-1
BMW X5 E70 Seat Control Unit Module ECU 9264973
PLN 332.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7578020-7
BMW E60 E90 LCI 325i 525i N53 218HP Engine Control Unit ECU DME 7578020 Manual
PLN 1,709.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8678976
Engine Wiring Mini F56 BMW F40 Petrol B38C Valvetronic Servo Motor Harness
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 06L971627A
Audi S1 8X S3 8V VW Golf R Mk7 2.0 TFSI Fuel Injectors Wiring Harness 06L971627A
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9288304
FEM Module BMW F20 F21 F22 F30 F31 F32 F36 Control Unit 9288304
PLN 360.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2218702286
Mercedes W221 Front Seat Heater Control Unit Module ECU A2218702286
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7514342-1
BMW 5 Z4 Series 1 E34 E85 Base B Terminal Point Engine Compartment 7514342
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 2S6T-14A073-AC
Ford Transit Connect Fuse Box Power Distribution Junction Relay 2S6T-14A073-AC
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4280002630
Toyota Hilux Vigo Engine Starter Motor Assembly Unit 03L911024A
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8V0907451
Audi A3 8V Sun Light Solar Sensor Control Detector 8V0907451
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7856771
Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 1-4 Loom Valve Ignition 7856771
PLN 284.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9156654
BMW 3 Series E93 Rear Antenna Aerial Amplifier AM/FM 9156654
PLN 55.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 3D0035465
VW Volkswagen Phaeton Mk1 Mulitmedia Audio Sound System Amplifier Unit 3D0035465
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8Y0971693D
Audi S3 8Y Sportback Rear Door Wiring Harness Loom Left Right N/O/S 8Y0971693D
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1568200089
Mercedes W176 W246 Tailgate Aerial Antenna Amplifier Unit A1568200089
PLN 42.95
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 .