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. 6C1T-14A076-BB
Ford Transit Mk7 Fuse Box Cover Electrical Unit Housing Trim Cap 6C1T-14A076-BB
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 4E0941817B
Audi A6 A8 D4 Q7 4M CAN Bus Jumper Contact Bridge Connector Plug 4E0941817B
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 06K907425B-13
Volkswagen Golf VII R 2.0TSI CJXC 300HP Engine Control ECU Kit 06K907425B Manual
€284.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 057911024
Audi A4 B9 A5 F5 Q7 4M Q5 FY VW Volkswagen Touareg Mk3 Starter Motor 057911024
€37.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 9380322
BMW F01 F02 F03 F10 F11 F13 Central Gateway Control Lear Module Unit ECU 9380322
€47.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5WA919275B-KYG
Audi A3 S3 8Y PDC Parking Distance Sensor 5WA919275C Kyalami Green - Z6A
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 83A962239
Audi A3 8Y Q3 F3 Rear Hatch Boot Lid Tailgate Opening Cable Wiring 83A962239
€70.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 057911022
Audi Q7 4M Engine Starter Motor Actuator Starter Valeo 3.0 TDI Diesel 057911022
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 04E971612ES
Seat Ibiza 6J Engine Wiring Harness Loom Manual Gearbox 1.2 TSI CJZC 04E971612ES
€42.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8645329-1
BMW F20 F21 F30 F31 LCI B38 B48 Alternator Generator Denso 14V 220A 8645329
€85.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 09185826
Vauxhall Opel Relay Speed Signal Electrical Unit 5 Pin Siemens Orange 09185826
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 2Q0971537AB
VW Polo Mk6 Seat Ibiza Mk5 KJ1 Battery Negative Cable Earth Wiring 2Q0971537AB
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 1477973
Ford Transit Connect Mk1 Starter Motor Engine Actuator 1.8 Diesel 2T14-11000-BC
€47.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2239052400
Mercedes W177 W223 W247 Crash Impact Deployment Sensor Unit A2239052400
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A0009056121
Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121
€142.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2059006213
Mercedes W205 Rear Door Module Control Unit ECU Left N/S A2059006213
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8V4971030AD
Audi A3 S3 8V Front Door Wiring Harness Loom Cable Passenger Side 8V4971030AD
€61.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8V5971687Q
Audi A3 8V Door Wiring Harness Loom Rear Left Right N/O/S 8V5971687Q
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8V5035225
Audi A3 8V Keyless Entry Amplifier Control Box Module Aerial Antenna 8V5035225
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8V0907376H
Audi A3 S3 8V AMR Module Rear Suspension Damper Control Unit 8V0907376H
€142.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8650701-1
BMW F80 M3 F82 F83 M4 S55 431HP Engine Module ECU DME Kit 8650701 Automatic
€1,125.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5WA959436J-1
Audi A3 RS3 8Y Keyless Go Module ECU Entry Control Unit 5WA959436J
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5WA980653C
Audi A3 S3 RS3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653C
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5WA907530Q
Audi A3 RS3 8Y Gateway Control Unit Module ECU GW2020 High 5WA907530Q
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8Y0035282B
Audi A3 S3 RS3 8Y Online Service Control Module Unit 8Y0035282B
€161.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A1775409141
Mercedes W177 W243 W247 Front Door Wiring Harness Cable Driver Side A1775409141
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A1775402811
Mercedes W177 W243 W247 Rear Door Wiring Harness Cable Left N/S A1775402811
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 07K907309L
Audi RS3 8Y 2.5 TFSI Quattro 400HP DNWC Engine Unit ECU 07K907309L Automatic
€902.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8X0959793E
Audi A1 8X Q3 8U Front Door Module Driver's Side Control Unit ECU 8X0959793E
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2478207502
Mercedes C118 W177 W243 W247 Centre Console Dual USB-C Socket Ports A2478207502
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2069055100
Mercedes C118 W167 W177 W206 W247 Stereo Amplifier Harman Kardon A2069055100
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2479007312
Mercedes W212 Suspension Module Adjustment Control Unit Controller A2479007312
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A1679009330
Mercedes C118 W167 W177 W243 W247 Ignition Control Module Unit ECU A1679009330
€284.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A0009004836
Mercedes W177 W247 Driving Dynamics Module Control Unit ECU A0009004836
€142.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 1EA907376B
Audi A3 S3 8Y Rear Suspension Damper Module Control Unit ECU 1EA907376B
€56.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5WA907572B
Audi A3 8Y Adaptive Cruise Control Radar Sensor Control Unit Module 5WA907572B
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A1668203426
Mercedes W166 C292 Front Seat Adjuster Module Unit Left Right N/O/S A1668203426
€42.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2789060600
Mercedes W166 R172 W205 C207 W212 C216 Engine Starter Motor 12V A2789060600
€51.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 4M0907401AM
Audi Q7 4M 3.0TDI DPXB Quattro 218HP Engine Control ECU 4M0907401AM Automatic
€759.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8W0907064EC
Audi A5 F5 BCM Body Comfort Module Onboard Control Unit ECU 8W0907064EC
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 4M0941823E
Audi Q7 4M Positive Battery Terminal Distribution Box 4M0941823E
€66.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 7188557
BMW F10 S63N Control Unit Fuel Pump 7188557
€360.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8X0971365
Audi A1 8X Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8X0971365
€42.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 04B903023B
Volkswagen Polo Mk5 Alternator Generator 140A Diesel Engine 04B903023D
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 1K0971349JQ
Audi A3 8P 1.2 TFSI CBZB Alternator Wiring Harness Cable Loom 1K0971349JQ
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 02E911023Q
Audi A3 8P Engine Starter Motor Actuator 2.0 TDI Diesel 02E911023Q
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2185409606
Mercedes C218 Parktronic Parking Sensor Wiring Cable Rear PDC A2185409606
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2215403050-1
Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 05E903026B
Volkswagen Golf Mk7 Audi A3 8V Alternator 14V 140A 1.5 TSI 05E903026B
€61.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A0009061705
Mercedes W205 C63 Petrol Engine 14V 200A Alternator Generator Unit A0009061705
€113.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A4475400010
Mercedes Vito W447 Battery Cable Alternator Wiring Diesel OM651 A4475400010
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A4475400600
Mercedes Vito W447 Battery Cable Alternator Wiring Diesel OM651 A4475400600
€42.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 06H903017EX
Audi A3 8P Engine Alternator Generator 14V 140A 1.8 TFSI CDAA 06H903017E
€47.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5N0971349AT
Volkswagen Tiguan 5N Alternator Generator Wiring Harness Cable 5N0971349AT
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8S0971365F
Audi TT FV Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8S0971365F
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 1K0971391ES
VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 7948147
BMW F40 F44 Rear Seat Bench Occupancy Mat Control Unit Sensor 7948147
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A4159064900-1
Mercedes Citan W415 Alternator Generator OM607 Diesel Engine 150A 14V 231000026R
€56.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2135406831
Mercedes W213 Rear Door Wiring Harness Keyless Left Right N/O/S A2135406831
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5Q4959592C
Seat Leon Mk3 Door Module Control Unit Front Passenger's Side Door 5Q4959592C
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A0131547002
Mercedes W211 CLS C219 Alternator Generator OM642 Diesel 14V 180A A0131547002
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8507949
BMW X3 F25 X4 F26 N57 Fuel Injection Line Wiring Loom Harness Cable 8507949
€51.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 1S0919275D-MOG
Audi Q3 8U PDC Parking Distance Control Sensor Monsoon Grey Metallic - X7R
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 06N971627B
Audi A3 8Y Engine Injector Module Wiring Harness Cable 2.0 TFSI 06N971627B
€47.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A0009062103
Mercedes W205 Alternator Generator Petrol Engine Valeo 150A 14V A0009062103
€113.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 059903019N
Audi A5 8T Alternator Generator Electrical Unit 150A 14V 3.0 TDI 059903019N
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 06K903023G
Audi TT FV Engine Alternator Generator Electric 14V 150A 2.0 TFSI 06K903023G
€284.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A6541500800
Mercedes W177 W213 Engine Wiring Harness Loom E220d Diesel A6541500800
€37.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5Q0955547A
VW Golf VII Skoda Octavia Fabia III Front Windscreen Rain Sensor 5Q0955547A
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5G0971095A
VW Volkswagen Golf Mk7 Wiring Loom PDC Front Harness Parking Sensor 5G0971095A
€61.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5F4971194A
Seat Leon 5F Rear Bumper Wiring Loom PDC Harness Parking Sensor 5F4971194A
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 2225618
Ford Transit Custom Mk1 Engine Starter Motor 2.0 EcoBlue GK2T-11000-AB
€66.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A9075400186
Mercedes Sprinter W907 Battery Cable Alternator Wiring Loom Harness A9075400186
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A6541592200
Mercedes X253 Engine Wiring Cable Cover Duct Bracket Channel OM654 A6541592200
€42.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5Q0971230AQ
Seat Leon 5F VW Golf Mk7 Alternator Wiring Harness Loom Cable 5Q0971230AQ
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 1K8971104S
Volkswagen Scirocco Mk3 Rear Number Plate Wiring Harness Cable Loom 1K8971104S
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 03E971612AC
VW Volkswagen Polo 6R Engine Wiring Harness Cable Loom 1.2 CGPA Petrol 03F971612
€94.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 06E911021D
Audi S5 8T A6 C7 Engine Starter Motor 3.0 TFSI Petrol CGWC 06E911021D
€42.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2189009003
Mercedes CLS C218 Front Headlight Xenon Ballast Control Module Unit A2189009003
€66.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5Q4959593K
Seat Ateca Door Module Control Unit Front Driver's Side Door 5Q4959593K
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5Q4959592K
Seat Ateca Door Module Control Unit Front Passenger's Side Door 5Q4959592K
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5Q0907530AL
Audi A3 8V VW Golf 5G Central Gateway Control Unit Module Relay ECU 5Q0907530AL
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 4F0959760D
Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
€118.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 9231283-AZB
BMW E70 F10 F11 PDC Parking Sensor Ultrasonic Sensor Azurit Black - S34 9231283
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A6519005301-15
Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
€113.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8571084
BMW F20 F21 F30 LCI Wiring Injector Loom Harness Cable Module B47 Engine 8571084
€151.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 06J971082D
Audi Q3 8U Engine Injector Module Wiring Harness Cable 2.0 TFSI 06J971082E
€28.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5F4035225B
Seat Leon Mk3 Antenna Amplifier Module FM Right O/S Aerial Booster 5F4035225B
€42.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 8K0971104C
Audi A4 B8 Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104C
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2075406010-1
Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010
€66.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 02E911023T
Seat Leon 5F Engine Starter Motor 2.0 TDI Diesel 02E911023T
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 7611322
BMW F01 F02 F06 F07 F10 F11 F12 Positive Cable Battery Lead N55 Engine 7611322
€32.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 7605076
BMW F06 F10 F11 F12 F13 Wiring Harness Cable Engine Ignition Module N55 7605076
€75.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 4H0959795E
Audi A8 4H Rear Door Module Control Unit Left Right N/O/S 4H0959795E
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2229002009
Mercedes W205 W222 Door Module Control Unit Rear Left N/S A2229002009
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2229001909
Mercedes W205 W222 Door Module Front Right O/S Control Unit ECU A2229001909
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2229002109
Mercedes W205 W222 Door Module Control Unit Rear Right O/S A2229002109
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. 5Q4959593B
Seat Leon Mk3 5F Door Module Control Unit Front Driver's Side Door 5Q4959593B
€23.95
Free delivery - Wed, Nov 12
If paid before 14:00
Part no. A2229001809
Mercedes W205 W222 Door Module Front Left N/S Control Unit ECU A2229001809
€23.95
Free delivery - Wed, Nov 12
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 .