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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Category
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Condition
In Stock
Price
Part no. 6935363
BMW E60 Light Control Unit Module ECU LME6X Delphi 6935363
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. JK2T19L540AA
Ford Transit Custom Load Door Wiring Harness Cable Loom Left N/S JK2T19L540AA
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. GK2T14301AC
Ford Transit Custom Negative Battery Lead Cable Harness Wirng Loom GK2T14301AC
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8512407-2
BMW X5 E70 LCI X6 E71 30dX Diesel N57 245HP Engine ECU Kit DDE 8506570 Automatic
£379.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2721533779-3
Mercedes A209 SLK350 272.960 272HP Engine Module ECU A2721533779 Automatic
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8654466-2
Mini F56 F57 F60 JCW 225i 231HP B48 Engine Control ECU DME Kit 8654466 Automatic
£569.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6G9T14B192DA
Ford Transit Mk7 Relay 5-Pin Black Unit FoMoCo 6G9T14B192DA
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K2907115AE
Audi A4 B8 A5 8T 2.0TFSI CDNB Quattro 180HP Engine Unit ECU 8K2907115AE Manual
£66.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K0907383E
Audi A5 8T Towbar Trailer Hitch Control Module Unit ECU HELLA 8K0907383B
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6842256
BMW X2 F39 F45 X1 F48 Active Gran Tourer Air Module ECU Control Unit 6842256
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2514404513
Mercedes W251 Headlight Cable Headlamp Wiring Loom Harness A2514404513
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2519000800
Mercedes W251 PDC Parking Assistant Control Unit Module ECU A2519000800
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1644404401
Mercedes W251 SAM Rear Control Unit Central Electrics Module A1644404401
£474.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8518479
BMW F10 530dX N57N 258HP Diesel Engine Control ECU DDE Kit 8518479 Automatic
£132.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K2907115L
Audi A4 B8 A5 8T 8K 2.0 TFSI CDNC 211HP Engine Control ECU 8K2907115L
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6C1T-12B637-JJ
Ford Transit Mk7 Engine Wiring Loom Harness Cables 2.2 TDCi 6C1T-12B637-JJ
£113.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. H1BT18K811LF
Ford Transit Custom Mk1 Radio Head Unit Control Panel H1BT18K811LF
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. JK2T14401FMB
Ford Transit Custom Mk1 Fuse Relay Box 2.0 Diesel JK2T14401FMB
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4T1112A650CB
Ford Transit Connect 1.8 TDCi 90HP Engine Control ECU 4T1112A650CB Manual
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 2T1T15K600BC
Ford Transit Connect Control Unit Central Door Locking Module ECU 2T1T-15K600-BC
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 2T1T14B321AB
Ford Transit Connect Air Module Control Unit ECU 2T1T-14B321-AB
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8574352-4
BMW X1 E84 320sd Diesel N47N 184HP Engine Control ECU DDE 8574352 Automatic
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2129060205-1
SAM Module Mercedes W207 W212 Rear Control Unit ECU A2129060205
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8518633
BMW F10 F11 535d F13 640d N57Z 313HP Engine Unit ECU DDE 8518633 Automatic
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. F1BT18C815GH
Ford Transit Custom Head Unit CD Player Radio Stereo F1BT18C815GH
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. BK2T14401FLH
Ford Transit Custom 2.0 Ecoblue Diesel Fuse Box Power Distribution BK2T14401FLH
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. EK2T14B428LA
Ford Transit Connect Bluetooth Control Module Unit ECU EK2T14B428LA
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8P0862335N
Audi A3 8P TT 8J Interface Bluetooth Control Module Harman Becker ECU 8P0862335N
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. CWE100710KIT
Land Rover Radio Remote Key Fob Blade Opener Button CWE100710KIT
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2045458201-1
Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8582279-9
BMW F30 F32 320d 420d N47N 184HP Engine Control ECU Kit DDE 8582279 Automatic
£474.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7809999-3
BMW X3 E83 LCI 1.8sd 2.0sd N47 177HP Engine Control Unit ECU DDE 7809999 Manual
£151.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 284B63788R
Mercedes Citan W415 109 CDI Fuse Box Module Unit 284B63788R
£170.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8576333-7
BMW F30 F31 F32 320dX 420dX N47N 184HP Engine ECU Kit DDE 8576333 Automatic
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 04L907445B
Audi A3 8V 1.6 TDI 110 HP Engine Control Module ECU Kit 04L907445B Manual
£170.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 284B17052R
Mercedes W415 Nissan Navara Body Control Module Unit BCM ECU 284B17052R
£66.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 281156903R
Mercedes Citan W415 Radio CD Player Bluetooth Head Unit USB MP3 281156903R
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KT1T14D068DD
Ford Transit Connect Mk2 Engine Bay Fuse Box 1.5 TDCI Diesel KT1T14D068DD
£42.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K2907115S
Audi A4 B8 8K A5 8T 2.0 TFSI CDNB 180HP Engine Control ECU 8K2907115S Manual
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KV6A5H298CF
Ford Transit Connect Mk2 AdBlue Control Module ECU 1.5 TDCi Diesel KV6A-5H298-CF
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8586540-8
BMW F34 330dX N57N 258HP Engine Control ECU DDE Kit 8586540 Automatic
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1K0907530P
Audi A3 8P Gateway Module Diagnostic Interface Control Unit ECU 1K0907530G
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. GK2112B565ED
Ford Transit Custom Mk8 Automatic Gearbox Module Control Unit GK21-12B565-ED
£137.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. LT1T15604CCB
Ford Transit Connect Mk2 Body Control Module BSI Unit P004T LT1T-15604-CCB
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. LT1T14B321AB
Ford Transit Connect Mk2 Air Module Control Unit ECU LT1T-14B321-AB
£66.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8573257-9
BMW F20 F30 F32 120d 320d 420d Diesel N47N 163HP Engine ECU DDE 8573257 Manual
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9145021
BMW E60 E61 E63 General Body Control Module Unit ECU Lear 9145021
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2129003917
Mercedes W212 CD Player Audio Stereo Radio Head Unit A2129003917
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9222862
BMW E91 LCI Radio Sat Nav CD DVD DAB Player Reader GPS Head Unit 9222862
£284.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6C1T14A481CA
Ford Transit Mk7 Under Bonnet Fuse Box Module Onboard Supply 6C1T14A481ACA
£61.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8E0927355
Audi A4 B7 Cabrio Convertible Roof Control Module Box Lid Storage 8E0927355
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03E906019AE
Skoda Fabia 5J 1.2 MPI CGPA 69HP Engine Control ECU Kit 03E906019AE Manual
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9247481
BMW X3 F25 Control Module CAS Unit ECU 20dX Diesel N47N 9247481
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5J0951172
Skoda Fabia 5J Interior Roof Alarm Sensor Ultra Sonic Module 5J0951172
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9214933
BMW E81 E87 E90 LCI Navigation Head Unit Sat Nav Professional CIC 9214933
£284.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A9079008703
Mercedes W907 W910 CD Player Audio Stereo Radio Head Unit A9079008703
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A9075409682
Mercedes Sprinter W907 W910 Fuse Box Relay Box Fuse Box Module A9075409682
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 95230-4H200
Hyundai H-1 iLoad Relay Module Control Unit ECU 95230-4H200
£94.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 6R7937086K
Skoda Fabia 5J Body Control Module Convenience Unit BCM ECU 6R7937086K
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03L906023LL
Skoda Fabia 5J 1.6 TDI 90HP CAYB Diesel Engine ECU Kit 03L906023LL Manual
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8J0907274B
Audi TT 8J Tyre Pressure Control Module Unit 8J0907274B
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8J0907274C
Audi TT 8J Tyre Pressure Control Module Unit 4F0907274
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. LR3T14G087VJ
Ford Transit Mk8 Bluetooth Module Unit Control ECU LR3T-14G087-VJ
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. L1TT14B006AA
Ford Transit Mk8 Fiesta Mk8 Crash Impact Sensor Air Module L1TT-14B006-AA
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. GK2113C148AB
Ford Transit Connect Mk2 Headlight Module Control Unit ECU GK2113C148AB
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KV6A5H298CE
Ford Transit Mk8 Ad Blue Control Module ECU 2.0 EcoBlue Diesel KV6A5H298CE
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KK3T19J201AD
Ford Transit Mk8 Rear View Camera Control Module Unit ECU KK3T19J201AD
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. LU5T14G371GXF-1
Ford Transit Mk8 Navigation Sat Nav Module Unit LU5T14G371GXF
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KK2T3F720BE
Ford Transit Mk8 Power Steering Rack Wiring Harness Connector KK2T-3F720-BE
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9266407
BMW F01 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9266407
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03F906070GR-1
Seat Ibiza 6J 1.2 TSI CBZB 105HP Engine Control ECU Unit Kit 03F906070GR Manual
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7578020-7
BMW E60 E90 LCI 325i 525i N53 218HP Engine Control Unit ECU DME 7578020 Manual
£370.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8515073-1
BMW F01 F02 F07 GT 530d 730d N57 245HP Engine ECU DDE Kit 8515073 Automatic
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8578946-3
BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8578946 Automatic
£118.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KK3T9K499BCE
Ford Transit Mk8 Exhaust Emission Wiring Loom Harness KK3T9K499BCE
£170.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. H1BT14B531CA
Ford Transit Connect Mk2 II Door Control Module ECU Front Right O/S H1BT14B531CA
£42.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KV6T13A840ACB
Ford Transit Connect Wiring Harness Cable Loom Assy KV61T13A840ACB
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6C1112A650AH-1
Ford Transit MK7 2.4 TDCI 100HP Puma Engine Unit ECU 6C1112A650AH Manual
£137.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2709002100-15
Mercedes C117 CLA 180 270.910 122HP Engine ECU Kit A2709002100 Automatic
£427.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8V0906259F-2
Audi S3 8V 2.0 TFSI CJXC 300HP Quattro Engine Unit ECU Kit 8V0906259F Manual
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6C1T9K499AEB
Ford Transit Mk7 Engine Bay Fuse Box Loom Harness Cables 6C1T-9K499-AEB
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. F80B14B192AA
Ford Transit Mk7 Relay 4-Pin Grey Electrical Unit 12V 70A F80B-14B192-AA
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9233961
BMW E84 Amplifier Stereo System Module Control Unit Lear 9233961
£85.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03L906018HS
Audi A1 8X 2.0 TDI CFHD 143HP Engine Control ECU Kit 03L906018HS Manual
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KV6A5H298CC
Ford Transit Connect Mk2 AdBlue Control Module ECU 1.5 TDCi Diesel KV6A-5H298-CC
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 575035736A
Seat Ibiza FR Double USB C Charging Port Socket Connection 575035736A
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. LT1T14B321AA
Ford Transit Connect Mk2 Air Module Control Unit ECU LT1T-14B321-AA
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KT1T18B955EB
Ford Transit Connect Mk2 II Dashboard Display Screen Panel KT1T-18B955-EB
£80.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KT1T18D832BR
Ford Transit Connect Music Radio Stereo CD Player Head Unit KT1T18D832BR
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8X0035182K
Audi A1 8X Multimedia MMI Radio SD Player Stereo Sat Nav Head Unit 8X0035182K
£237.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 575035816
Seat Ibiza Mk5 Multimedia Radio CD Player Head Unit Controller 575035816
£180.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5FJ919606A
Seat Ibiza FR Dashboard Onboard Screen Monitor Touchscreen Display 5FJ919606A
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2139005728-1
Mercedes W213 W238 Head Unit Switch Radio Navigation Control Knob A2139005728
£104.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9248561
BMW F01 F10 F20 F30 Front Seat Control Unit Module Memory 9248561
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 2Q0915181B
Seat Ibiza Mk5 Negative Battery Terminal Cable Lead 2Q0915181B
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-9268710-2
BMW F01 Display Screen On-Board Central Information Monitor Unit 10,25" 9241819
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8486841
Mini Cooper F56 B38 136HP Petrol Engine Control ECU DME 8486841 Manual
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8518424-6
BMW F20 F30 F31 116d 316d N47N 116HP Engine Control Unit ECU DDE 8518424 Manual
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2188203115
Mercedes CLS C218 Media Interface Wiring Harness Loom Cable A2188203115
£94.95
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 .