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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Mercedes ML164 Alternator Wiring Starter Motor Harness OM642 A1645400436
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Skoda Octavia 5E Air Module Control Unit ECU Module Sensor 3Q0959655AC
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Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9213187
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Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814
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BMW F10 F20 F30 Head Unit Basis Media Navigation Headunit 8791692
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Parking Module Mercedes W203 C209 Parktronic Control Unit A2035454932
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Audi SQ5 8R Starter Alternator Engine Wiring Loom Cable 3.0 TDI 8R0971228BG
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BMW E90 E91 E92 E93 LCI Diesel Alternator Generator 175A 150 14V 8507623
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Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901
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Mercedes Sprinter W907 311 CDI 651.958 114HP Engine Control Unit ECU A6519007103
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Mercedes C207 Coupe Module Rear Window Regulator Lifter Control Unit A2079003600
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BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690
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Battery Lead BMW E81 E87 Battery Cable Negative IBS 9134855 61129134855
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Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 + CAS3 + Key Automatic
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BMW E46 E85 M54 Petrol Alternator Generator Bosch 120A 7519618
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Volkswagen Touareg Yaw ESP Rate Sensor Module Unit Control ECU 7H0907652
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Mercedes C140 W210 Multifunctional Purpose Relay Fuse Unit Module A0015427419
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-AB
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Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038201285
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman 8E5035223
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Mercedes W204 W212 Tyre Pressure Check Monitor Control Unit Module A0009003704
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BMW F20 F21 F30 F31 Parking Assistant Control Unit Module 6864898
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Alternator Generator Mercedes W204 W212 M271 Engine Lucas 150A 14V LRA03506
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BMW 3 Series F30 F80 Boot Trunk Lid Tailgate Wiring Loom Harness Cable 9260012
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Audi Q3 8U 2.0 TFSI CULB 180HP Quattro Engine ECU Kit 06K907425C Ignition + Key
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BMW X5 E53 E60 E61 E63 E65 E70 Valvetronic VVT Control Unit Module 7532878
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Mercedes W203 W211 Diesel Engine Starter Cable Wiring A2035401335
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BMW E46 Inclination Indicator Alarm Tilt Sensor Control Module 8386932
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Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270
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Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036
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Land Rover Freelander 2 Yaw Rate Sensor 6G9N-14B296-AB
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Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793M
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Mercedes C118 W177 W247 Three Phase Alternator A0009062609
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Mercedes C216 W221 Distronic Radar Sensor Control Unit Module A2165402545
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Mercedes C140 Brake Pump Relay Electrical Fuse Module Control Unit A0015426519
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Wiring Loom Cable BMW E46 X5 E53 X3 E83 Seat Occupancy Sensor 8240500
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Vauxhall Opel Insignia A Diesel Glow Plug Wiring Loom Cable Wiring 55577669
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Peugeot 308 Citroen C3 C4 1.6 HDI Diesel Engine Alternator Generator 9665617780
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Audi A4 B8 2.0 TDI Alternator Mount Tensioner Pulley Bracket Support 03L903143K
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Mini R56 LCI R60 Radio MINI CD Player Head Unit Controller 3456363
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BMW E88 Convertible Antenna Aerial DAB Rear Trunk Tailgate 9127895
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Audi A3 8V 2.0 TDI Quattro Starter Motor Engine Diesel Bosch 02Z911024Q
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BMW 1 3 Series E87 LCI E90 E91 E92 Radio CD Professional 9144773
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Mercedes C204 C207 C214 C218 Module Fuel Pump Control Module Unit A0009004301
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BMW X3 E83 X5 E53 E38 E39 E46 EWS 3 Central Lock Immobilizer Module ECU 8382453
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SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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Mercedes W213 Front Left N/S Door Electrical Wiring Harness A2135407144
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BMW X1 F48 Differential Lock Module Rear Axle Control Unit ECU 8655341
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Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038206426
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BMW 5 7 X5 Series E34 E38 E39 E53 Petrol Starter Motor 1729981
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Mercedes-Benz C-Class W203 CD Player Audio Stereo Radio Head Unit A2038201786
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Mercedes W221 Air Conditioning Climate Heater Control Unit Module A2218700326
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3X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Skoda Octavia II 5 Pin Black Relay Control Module Unit Set Kit 8Z0951253
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Radio CD Player VW Volkswagen Caddy 2K Touran Head Unit 1K0057186AN
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BMW E61 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Mercedes ML W163 Body Control Module Unit BCM ECU A1635459032
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU FRM3R PL3 3457389
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Mazda 6 GJ Engine Starter Motor 2.2 Diesel M001T81582
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Ford Transit Mk7 Engine Alternator Generator Unit Diesel AC1T10300BB
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BMW E81 E87 E90 E91 Towing Tow Bar Trailer Hook Module Control Unit 1E0413
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BMW 7 Series E65 E66 E67 Control Unit Module Passive Go 6941803
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Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
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BMW E39 E46 E53 Radio BMW Professional TMC 65128385897 8385897
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Parking Control Module BMW E81 E84 E87 E90 E91 E92 E93 Unit PDC 6982402
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Mercedes Vito W447 Fuse Relay Box Module A4475405931
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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 .