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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In Stock
Price
Part no. 8691827-5
Mini Cooper F54 F55 F56 B38 136HP Engine Control ECU Kit DME 8691827 Manual
£189.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q4959592M
Seat Leon Mk3 Door Module Control Unit Front Passenger's Side Door 5Q4959592M
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 9259358
BMW F10 F11 F30 F32 F33 Side Surround View Camera Control Unit Module 9259358
£37.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8516754
BMW F01 F02 F03 N57S 740d 306HP Engine Control Module ECU 8516754 Automatic
£256.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 05E907309-1
Seat Leon FR 5F Mk3 1.5 TSI DADA 150HP Engine Control ECU Kit 05E907309 Manual
£113.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6977982-4
Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 5X 6977982
£23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6977982-3
Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 4X 6977982
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6977982-2
Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 2X 6977982
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0907247
Audi A6 4G Keyless Entry Aerial Antenna Control Unit Box Module 4H0907247
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0035666L
Audi A8 D4 4H Multimedia Radio Sat Nav CD Player SD SIM Head Unit 4H0035666L
£94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5F0919603A
Seat Leon Mk3 Head Unit Audio Radio Display Sat Nav Navigation 5F0919603A
£56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0614235
Audi A8 D4 ABS Pump Bracket Braking Unit Mount Holder Support 4H0614235
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2125420018-TNG2
Mercedes W169 W204 W212 Front Parking Sensor PDC Sensor Tenorite Grey 755
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5F4035225
Seat Leon Mk3 Antenna Amplifier Module AM/FM Left N/S Aerial Booster 5F4035225
£37.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5F4971693
Audi A1 8X Door Window Switch Loom Cable Rear Left Right N/O/S 5F4971693
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5F4971145
Seat Leon Mk3 5F Tailgate Boot Trunk Cable Wiring Loom Harness 5F4971145
£28.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 9383683
Body Domain Controller Mini F54 F55 F56 F60 ECU BDC Control Unit Module 9383683
£89.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6927928
CAS2 Module BMW E60 E61 E63 E64 Car Key Reader Control Unit ECU 6927928
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 3Q0959651
Seat Leon Mk3 5F Deployment Crash Impact Sensor Front Centre 3Q0959651
£23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6919113-1
BMW E81 E82 E87 E88 E90 E91 E92 E93 F10 F11 F12 Black Relays 5 Pin Set 6919113
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A1718203389-1
Mercedes R171 Head Unit Radio Player Sat Nav Comand DVD APS A1718203389
£237.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 3B0035711B
Seat Leon Mk3 5F Hands Free Microphone Module Speaker Wiring Loom 3B0035711B
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0959760F
Audi A8 D4 Front Seat Backrest Adjustment Module Left Right N/O/S 4H0959760F
£56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 9389364
Mini F54 F55 F56 F57 Head-Up Display HUD Projector Dashboard Screen 9389364
£113.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0959663A
Audi A4 B8 A8 D4 Voltage Stabilizer Converter Control Unit Module 8K0959663A
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 7451529
BMW F10 F36 Mini Clubman F54 Tailgate Smart Opener Bootlid Control Unit 7451529
£23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 9117832
Mini Clubman F54 Battery Cable Negative Terminal Wiring 9117832
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2469000012-3
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
£47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6864421
BMW i3 I01 F45 F46 Mini Clubman F54 Control Unit SAS Module ECU 6864421
£189.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 3C0937125A-1
VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 7577968-4
BMW E60 E61 E90 E91 325i 525i N52 218HP Engine Control ECU DME 7577968 Manual
£104.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A6519009502-1
Mercedes W176 A200 CDI OM651.930 170HP Engine Unit ECU Set A6519009502 Automatic
£113.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 7599881-18
BMW E87 LCI E90 E91 118i 318i N43 143HP Engine Control ECU DME 7599881 Automatic
£47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A6519007500-26
Mercedes W204 W212 C220CDI 170HP OM651.911 Engine Control ECU A6519007500 Manual
£47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A6421507300-1
Mercedes W164 ML300 CDI 642.940 190HP Engine Control ECU A6421507300 Automatic
£94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5K0907115
Volkswagen Golf 1K GTI 2.0 TFSI CCZB 211HP Engine Control ECU 5K0907115 Manual
£170.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W0915105A
Volkswagen Audi Varta Car Battery Accumulator AGM 12V 68Ah 680A 12V 8W0915105A
£94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. NAPA-AGM-70AH
NAPA AGM Accumulator Car Battery Electrical Unit 70Ah 760A 12V AGM096N
£75.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. YUASA-52AH
YUASA YBX 3000 Car Accumulator Battery Electrical Unit 52Ah 450A 12V YBX3012
£56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. B67824524
Mercedes W164 Media Interface Connection Cable MI AUX Wiring B67824524
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8T0959792K
Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792K
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5K0907159
Volkswagen Golf Mk5 Alarm Signal Sound Impact Body Control Module Unit 5K0907159
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. GK2T-14B321-AC
Ford Transit Custom Air Module Control Unit ECU GK2T-14B321-AC
£23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. AT11-12A650-CC
Ford Transit Connect 1.8 TDCi P7PB 75HP Engine Control ECU AT11-12A650-CC Manual
£94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 03L907309AE-1
Volkswagen Passat B7 2.0 TDI CFGC 177HP Engine Control ECU 03L907309AE Automatic
£32.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 7643312-1
BMW F10 F11 F20 F30 320i 520i N20 184HP Engine Control ECU DME 7643312 Automatic
£284.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5F0035877A
Seat Leon FR 5F MMI Navigation Sat Nav MMI Head Unit 5F0035877A
£203.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. GK21-14D378-AA
Ford Transit Custom Adblue Harness Loom Wiring 2.0 EcoBlue GK21-14D378-AA
£47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5F0919606
Seat Leon FR 5F Dashboard Multimedia DIsplay Sat Nav Screen 5F0919606
£199.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. BK2T-14B446-DF
Ford Transit Custom Front Panel Catch Cable Wire Harness BK2T-14B446-DF
£28.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A0045450201-1
Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5K0971104B
Volkswagen Golf Mk6 Rear Tailgate Licence Plate Lighting Wiring Cable 5K0971104B
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. GK2T-9K499-ABB
Ford Transit Custom Engine Fuse Box Wiring Loom Harness Cable GK2T9K499ABB
£66.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. GK2T-14A069-AB
Ford Transit Custom Mk1 Fuel Tank Sender Wiring Harness Loom GK2T-14A069-AB
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. GK2T-14401-FMB
Ford Transit Custom Fuse Relay Box 2.0 Diesel GK2T-14401-FMB
£47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6G9T-14B192-BA-1
Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit SET X2 6G9T-14B192-BA
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6G9T-14B192-BA
Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-BA
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. TF2218-1
Ryder Smart Logic Towing Hitch Trailer Hook Relay Control Unit Module TF2218/7E
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2128270228-KB
Mercedes W212 C218 Roof Antenna Shark Kosmos Black Metallic - 191 A2128270228
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8366282-1
BMW Z1 Z3 E32 E36 E38 E46 X5 E53 Connection Plug Golden Brown Set x2 8366282
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8366625-2
BMW X5 E53 259 259R 259 R22 Connection Plug Relay Pink Tyco Set 4x 8366625
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8366625-1
BMW X5 E53 259 259R 259 R22 Connection Plug Relay Pink Tyco Set x2 8366625
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2079001600
Mercedes A207 Heated Seats Heating Control Unit Module ECU A2079001600
£56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A6421502277-1
Mercedes ML W164 280CDI 4-Matic OM642 Engine Control ECU Kit A6421502277 Automat
£123.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0951253-1
Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X2 8K0951253
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A1695450046-1
Mercedes W169 W204 Battery Relay Module Box A1695450046 A0035422619
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. B67824565
Mercedes W164 iPod Interface Multimedia Music Connection Module B67824565
£23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2711534591
Mercedes W203 C180 Kompressor M271 Engine Module ECU A2711534591 Automatic
£142.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 03E906023L
Volkswagen Polo 6R 1.2 MPI CGPB 60HP Engine Control ECU 03E906023L Manual
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4G0907401S-1
Audi A7 4G C7 3.0 TDI CDUD 245HP Quattro Engine Module ECU 4G0907401S Automatic
£284.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 3AF035552E
VW Volkswagen Passat B7 Radio Aerial Antenna Amplifier Right O/S 3AF035552E
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2229007111
Mercedes W205 W222 Keyless Go Entry Module Control Unit ECU A2229007111
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5P0919475B
Seat Leon Mk2 1P PDC Parking Distance Control Sensor Module Unit ECU 5P0919475B
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2055407716
Mercedes W205 Negative Battery Cable Earth Lead Harness Wiring A2055407716
£23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2059001033
Head Unit Mercedes W205 GLC X253 COMAND Multimedia Stereo Unit A2059001033
£189.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5G0035222A
Volkswagen Golf Mk7 Media In Port Socket Connection Adapter 5G0035222A 5Q0035736
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q0919294C
Audi A3 8V Golf Mk7 PDC Parking Distance Control Module Unit ECU 5Q0919294C
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8P0035192S
Audi A3 S3 8P Radio Media GPS Nav Sat Audi Navigation Plus Unit 8P0035192S
£180.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2129005614
Mercedes C207 W212 W218 Radio Head Unit Navi CD Player Navigation A2129005614
£180.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 059903015T
Audi Q7 4L A8 D4 Water Cooled Alternator 190A 059903015T
£56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. A2139009020-1
Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
£170.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 02T911024K
Seat Ibiza 6J VW Volkswagen Polo 6R Skoda Fabia II Starter Motor 02T911024K
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 9383694
BMW F10 Footwell Light Module Control Unit ECU TEMIC 9383694
£47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0959793
Audi A5 8T Door Module Control Unit ECU Front Driver's Side 8K0959793
£23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4L0971014B
Audi Q7 4L Fuel Pump Wiring Harness Adapter Loom Electrical Line 4L0971014B
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4L0971767
Audi Q7 4L Washer Bottle Reservoir Wiring Loom Harness 4L0971767
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6986879
BMW Z4 E85 Roadster Cabrio Convertible Roof Folding Top Module Unit 6986879
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 09D927750JF
Audi Q7 4L Automatic Transmission Module Control Unit 3.0 TDI 09D927750JF
£37.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4L0698007B
Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007B
£94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 7527072-13
BMW E60 520i M54 170HP Engine Control Module ECU DME 7527072 Manual
£94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6927260
BMW E60 Seat Control Unit Module Left Right N/O/S Temic 6927260
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4F0919283K
Audi Q7 4L Parking Control Unit ECU PDC Park Assist Module Sensor 4F0919283K
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. V23134-B52-X270
TYCO Relay Module 12V 4 Pin Black 314 V23134-B52-X270
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4F0907468F
Audi A6 C6 Q7 4L Diagnostic Interface Gateway Module ECU Control Unit 4F0907468F
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 7L0937503
Volkswagen Touareg 7L Fuse Box Relay Control Unit Module 7L0937503
£47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 2Q0915181A
Volkswagen Polo VI GTI Negative Battery Terminal Cable Lead 2Q0915181A
£28.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8P0862335Q
Audi A4 B7 Harman Becker Bluetooth Module Interface Control Unit 8P0862335Q
£13.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 6C0907359A
Volkswagen Polo 6C Air Suspension Module Regulation Control Unit 6C0907359A
£18.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W6907217A
Audi A5 F5 Front Windscreen Windshield Lane Assist Camera 8W6907217A
£28.95
Free delivery - Tue, Nov 04
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 .