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. 8S0915181C
Audi Q5 FY A5 Negative Battery Terminal Cable Wiring 8S0915181C
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8W8959107B
Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 80A906093
Audi Q5 FY Fuel Pump Control Unit Module ECU Diesel Kuhnke 80A906093
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 80A035223A
Audi Q5 FY Sound System Audio Amplifier Amp Unit Bang & Olufsen 80A035223A
£284.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 80A959655N
Audi Q5 FY Air Module Control Unit SRS System ECU 80A959655N
£175.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 80C919616
Audi Q5 FY Multimedia Volume Control Button Switch Knob Head Unit 80C919616
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8W1959592
Audi Q5 8R Door Module Front Left N/S Control Unit ECU Controller 8W1959592
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2098205126
Mercedes CLK A209 Convertible Roof Top Control Unit Module ECU A2098205126
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8W1959595
Audi Q5 FY Rear Door Control Module Unit Left Right N/O/S 8W1959595
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. B67824232
Mercedes CLK C209 A209 iPod Connection Interace Unit B67824232
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2098203226
Mercedes A209 Keyless Go Module Entry Control Unit ECU A2098203226
£70.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8X0919475N
Audi Q3 8U PDC Assistance Parking Distance Control Module Unit ECU 8X0919475N
£51.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8T0907560M-1
Audi S5 8T 4.2 FSI CAUA Quattro 354HP Engine ECU Kit Ignition + Key 8T0907560M
£455.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A6461502072-1
Mercedes W204 C220CDI 646.811 170HP Engine ECU Kit Ignition + Key A6461502072
£284.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A6519009702-4
Mercedes W176 A200d 651.930 136HP Engine ECU Kit Ignition + Key A6519009702
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8J0971035J
Audi TT 8J Driver's Side Door Card Wiring Loom Harness Cable 8J0971035H
£61.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K0959792D
AUDI S5 8T Door Control Module ECU Front Left N/S 8K0959792D
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K0959793D
Audi A4 B8 A5 S5 8T Door Module Control Unit Front Left N/S 8K0959793D
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K0907364A
AUDI S4 B8 Quattro Dynamic Suspension Electric Damper Control Module 8K0907364A
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 443937105B-1
Volkswagen Audi Skoda Seat Thermal Fuse Relay Amp 15A 12V 443937105B
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7199998
Mini R52 Cabrio Convertible Folding Top Roof CVM Module Control Unit 7199998
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4G0907401F-1
Audi A7 4G 3.0 TDI CDUC Quattro Engine ECU Kit BCM + Ignition + Key 04L907445F
£332.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8J0035456
Audi S5 8T Antenna Amplifier Aerial Control Module Unit ECU 8J0035456
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K0907551
Audi A4 S4 B8 3.0 TFSI 333HP CAKA Quattro Engine Control Unit ECU 8K0907551
£142.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 4G8959792A
AUDI A7 4G8 Door Control Module Front Right O/S Passenger Side 4G8959792A
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 420919275-BBL
Audi A4 A5 Q7 Rear Bumper PDC Parking Sensor Black Metallic - Y9B 420919275
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8574372-4
BMW F07 530d F01 730d N57N Engine Control Unit ECU DDE Kit CAS4 + Key 8574372
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4H0907357A
Audi A7 4G8 Headlight Head Light Lamp Range Control Unit Module ECU 4H0907357A
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9225014-1
BMW F23 F30 Distributor External Ignition Base Control Unit Module 9225014
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y0971693D
Audi S3 8Y Sportback Rear Door Wiring Harness Loom Left Right N/O/S 8Y0971693D
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9299591
Central Gateway BMW F13 F01 F02 F03 Control Lear Module Unit ECU 9299591
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8T0959754D
Audi A4 B8 A5 8T A6 C7 Remote Radio Alarm Key Button Control 868 MHZ 8T0959754D
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8J0906331A
Audi TT 8J Engine Control Unit ECU Mount Bracket Holder 8J0906331
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8P0907063R
Audi TT 8J BCM Body Control Module Unit ECU 8P0907063R
£113.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9182293
BMW F01 F02 F04 Rear View Camera Cable Set 9182293
£89.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4L1937503
Audi Q7 4L Fuse Relay Box Module Electrical Control Unit 4L1937503
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4L2035670J
Audi Q7 4L Head Unit Radio Player Navigation Control Module Alpine 4L2035670J
£469.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 4L0910441C
Audi Q7 4L Rear Reversing Camera Module View Control Unit ECU 4L0910441C
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9244424
BMW X5 E70 X6 E71 LCI Cables Set Wiring PDC Parking Sensor Front 9244424
£70.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 059911024K
Starter Motor AUDI Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter 059911024K
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4F0907468R
AUDI Q7 4L Quattro 3.0 TDI BUS Diagnostic Gateway Interface Module 4F0907468R
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7P0927601
Oil Pump Control Audi Q7 4L Volkswagen Touareg 7P Module Unit ECU 7P0927601
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4L2910401B-1
Audi Q7 4L 3.0 TDI CRCA Quattro Engine ECU Kit Lock + Ignition + Key 4L2910401B
£712.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A6549009600-3
Mercedes GLC 220d X253 654.920 194HP 4Matic Engine Control Unit A6549009600
£161.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8K5907551D-1
Audi S5 8T 3.0 TFSI CGWC 333HP Quattro Engine ECU Kit Ignition + Key 8K5907551D
£284.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4F0959793T
Audi Q7 4L Door Module Front Driver's Side Control Unit ECU 4F0959793T
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7P0907652
Yaw Sensor Audi Q7 4L Rotation Rate Unit Module 7P0907652
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4L0910289K
Audi Q7 4L Body Control Comfort Unit Module BCM Unit ECU 4L0907289K
£170.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7640015-3
BMW E81 E82 E88 N43 118i 143HP Engine Control Unit ECU DME 7640015 Automatic
£123.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4G0907410
Audi A6 C7 4G A5 8T Garage Door Opening Module Controller Unit 4G0907410
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5Q0959595L
Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-8R2035666B
Audi S8 8T Head Unit Radio Player Navigation Control Module 8R2035666B
£113.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K0907064GE
Audi A5 S5 8T BCM Body Control Module Unit ECU 8K0907064GE
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y0035043F
Audi S3 8Y Multimedia Radio CD Player Bluetooth Control Head Unit 8Y0035043F
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5WA919298B
Audi S3 8Y PDC Parking Distance Assist Sensor Module Control Unit 5WA919298B
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5WA907338B
Audi S3 8Y Front Lamp Range Headlight Ballast Control Module Unit ECU 5WA907338B
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4K1907594CB
Audi S3 8Y VW Golf Mk8 Sun Roof Module Control Unit ECU 4K1907594CB
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y4971104AP
Audi S3 8Y Rear Bumper PDC Parking Sensor Wiring Harness Loom 8Y4971104AP
£61.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y0971036E
Audi A3 8Y Front Door Card Wiring Harness Loom Cable Passenger Side 8Y0971036E
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-8Y2971029S
Audi A3 8Y Front Door Wiring Loom Harness Cable Driver's Side 8Y2971029S
£70.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-8Y2919617-1
Audi S3 8Y Head Up Display Dashboard Car System Screen 8Y2919617
£284.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y5971035E
Audi A3 8Y Front Door Card Wiring Harness Loom Cable Driver's Side 8Y5971035E
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4H0907601E
Audi S3 8Y 2.0 TFSI DNFF Petrol Engine Sound Noise Actuator 4H0907601E
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5WA959655J
Audi S3 8Y Air Module Control Unit SRS System ECU 5WA959655J
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5WA959651A
Audi A3 8Y VW Golf Mk8 Front Air Module Crash Impact Sensor 5WA959651A
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4H0907658C
Audi S3 8Y A5 F5 Q5 FY A8L 4H Air Quality Sensor Unit 4H0907658C
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5WA915181C
Audi S3 8Y 2.0 TFSI DNFB HV Battery Negative Terminal Cable Wire 5WA915181C
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1EA907376C
Audi S3 8Y Rear Suspension Damper Module Control Unit 1EA907376C
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1729060205-1
Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y0959593L
Audi Q3 A3 S3 8Y Front Driver's Door Module Control Unit ECU 8Y0959593L
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 079903805AF
Audi A5 S5 S5 8T 4.2 FSI Alternator Bracket Mount Holder 079903805AF
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y0963554A
Audi S3 8Y Rear Seat Couch Occupancy Recognition Sensor Unit 8Y0963554A
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8Y0947355P
Audi S3 8Y Glow Box Light Control Unit LED Module 8Y0947355P
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5Q0959595K
Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595K
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A0025450601
Mercedes W906 Fuse Relay Box Module Control Unit A0025450601
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9383176
BMW F20 F30 F34 BCM FEM BSI Body Control Module Unit 9383176
£70.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A6081500400
Mercedes W177 OM608 Diesel Engine Wiring Loom Harness Cable Loom A6081500400
£180.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1698202675-2
Mercedes W169 W245 Aerial Roof Antenna Radio Rod A1698202675
£51.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8J0035456A
Antenna Amplifier Audi Q5 8R A6 C6 A5 8T Mobile Phone Module Unit 8J0035456A
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 059911022
AUDI Q5 8R Quattro 3.0 TDI Diesel CCWA CCWB Starter Motor 059911022
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8R0971104AC
Audi Q5 8R Rear Bumper PDC Parking Sensor Wiring Harness Loom 8R0971104AC
£42.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5A5CDC9
Mini Cooper S F56 B48C Engine Module Control Unit ECU DME 5A5CDC9 Manual
£265.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8R0907401J-1
Audi Q5 8R 3.0 TDI CCWA 240HP Quattro Engine ECU Kit Ignition + Key 8R0907401J
£237.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8K0959795F
Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795F
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4M0035456A
Audi A4 B9 Antenna Amplifier Aerial Control Module Unit 4M0035456A
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8W5035021
Audi A4 B9 Multimedia MMI Radio SD Player Stereo Sat Nav Head Unit 8W5035021
£550.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8T0907468T
Audi A4 B8 A5 8T Gateway Control Unit Module ECU 8T0907468T
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7N0941329
Audi A3 8V 30 TDI DGTE Ad Blue Reducer Dosage Control Module Unit ECU 7N0941329
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5Q0959592F
Door Module Audi A3 8V Volkswagen Golf 7 Control ECU Front Left N/S 5Q0959592F
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K5907311-1
Audi A5 8T 3.0 TDI CLAB 204HP Engine ECU Kit Ignition + Key 8K5907311 Automatic
£284.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8T0959793F
Door Module Audi A5 8T A4 B8 Control Front Right O/S Unit 8T0959793F
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8T0959792H
Door Module Audi A5 8T A4 B8 Control Front Left N/S Unit 8T0959792H
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5A5CDC7
Mini Cooper F55 F56 B38C 1.5L Engine Control Unit ECU DME 5A5CDC7 Automatic
£151.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2048704590-1
Mercedes-Benz C-Class W204 CD Media Player Radio Audio 20 Phone A2048704590
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8582279-6
BMW F30 320d ed N47N 163HP Engine ECU DDE Kit FEM + Key 8582279 Automatic
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1665408732
Mercedes W166 C292 Front Bumper PDC Parking Sensors Wiring Harness A1665408732
£42.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8642707-1
Mini Cooper S F56 B48 192 HP Engine ECU DME Kit BDC + Key 8642707 Automatic
£598.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. RHD-A2135400850
Fuse Box Mercedes W213 C238 Relay Module Control Unit A2135400850
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8X0959793K
Audi A1 8X Door Module Front Right O/S Driver's Side Control Unit ECU 8X0959793K
£13.95
Free delivery - Wed, Dec 17
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 .