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 W176 Starter Motor 12V Bosch M270 Petrol Engine A2709060700
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Door Cable Mercedes W212 Wiring Loom Front Right O/S Driver Side A2124401251
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Parking Sensor PDC BMW X5 E53 Front Cover Control Primed 8408383
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Mercedes W213 C238 Air Suspension Valve Block Control Unit Module A0993200258
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Front Apron BMW F30 F31 F32 Front Bumper PDC Wiring Cable Loom Set 9283653
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BMW F20 F21 F30 LCI DENSO 170A Alternator Generator 7605060
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-BB
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BMW E90 ECU Body Control Module ECU H1 61359134479 9134479
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9314237
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Mercedes-Benz W203 W210 W220 M112 240 280 320 Engine Starter Motor A0051516501
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Peugeot 308 Citroen C3 C4 1.6 HDI Diesel Engine Alternator Generator 9665617780
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BMW E87 LCI Body Control Module Junction Box Electronics H2 9176882
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BMW 3 X3 Series E46 E83 Engine Electronics Complete Control Unit Box 7534921
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Mercedes W204 Display Screen Multifunction Navigation Dashboard A1729004004
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Peugeot 207 Multifunction Display Screen Unit Module Dash Dashboard 9676655380
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Mercedes V177 Seat Control Module CSMM Front Right O/S A2479005807
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Ford Transit MK7 2.2 TDCi Diesel Glow Plug Wiring Loom Cable BK2Q6M091AE
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608
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Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069
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Mercedes GLE C292 Coupe Parking PDC Sensor Display Device Unit A0005427700
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BMW 5 6 X3 X5 Series E53 E60 E61 E63 E83 Cigarette Lighter Socket 6973036
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Mercedes W221 Seat Control Module Front Right O/S A2218707493
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Seat module BMW G11 G20 G30 G01 G02 Seat Control Unit Module ECU 9891562
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Mercedes W166 Front Door Module Left N/S Control Unit ECU A1669005012
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BMW X5 E53 Light Check Module Control Unit ECU Lear LCM III W / MAN. LWR 6905874
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BMW F20 F30 F31 LCI Earth Cable Battery Cable 8648003 12428648003
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Battery Box Bracket Mercedes W205 W213 W238 Trim Holder Right O/S A2056200018
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BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9352865 Manual
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BMW E81 E87 LCI E90 E91 Petrol N43 Engine Control Unit ECU DME 7595179 Manual
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Mini Cooper One R56 High PL3 SPEG DC/DC M3 Fuse Distribution Box 3453294
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Mercedes W204 Steering Wheel Air Module Driver's Side Black A0008605903
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Mercedes W209 Convertible Rain Light Sensor Windscreen Module A2098206126
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Fuse Box Mercedes W211 CLS C219 Rear SAM Module Relay Control Unit A2115458601
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BMW E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC 9145102
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Mini Cooper R55 R56 R57 LCI R60 Radio Boost CD Player Head Unit 3457434
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Engine Wiring Harness Mercedes W203 W211 M271 Loom Wiring Cable A2711502433
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BMW E93 Footwell Light Control Module FRM3R PL2 Lear 9249081
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Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
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BMW F10 F20 F30 F31 Body Module Control Unit FEM 9303546
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Mercedes Vito W639 Earth Cable Battery Terminal Wiring A6395400431
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BMW 1 Series E87 ECU Body Control Module Unit L2 PL2 JBBFE 9134482
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Mercedes S205 Display Screen Multimedia Navigation Sat Head Unit A2059004113
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BMW 1 Series e81 BODY CONTROL MODULE L2 61356968836 6968836
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Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604
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Starter Motor Audi Q3 8U Volkswagen Passat B7 Engine Starter Actuator 02E911024C
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BMW E63 E64 Front Bumper PDC Loom Cables Wiring Set 6929148
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BMW E87 E90 E91 Power Distribution Fuse Box Front 6906613
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BMW 1 Series E81 E87 LCI N43 118i 143HP ECU Kit DME 7621178 CAS3 Key Automatic
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Mercedes W203 C209 Yaw Sensor ESP Rotation Rate Control Unit Module A0035429818
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Steering Wheel Module BMW F20 F21 F30 F31 F32 Heating Control Unit 7849393
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BMW F20 F21 F30 F31 F34 GT Rain Sensor Front Windscreen Light Unit 9293279
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Seat Module BMW E60 E61 E65 E66 Front Left Right N/O/S Control Unit ECU 6927315
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Mercedes W221 Cover Fuse Box Case Trim Panel Lid A2215401682
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Battery Positive Mercedes C117 W176 W246 Plus Pole Terminal Lead A2469067901
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Headlight Module BMW F06 F12 F13 Xenon Headlamp Control Unit AHL 7316211
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Seat Module BMW E60 E61 E65 E66 Front Control Unit ECU 6927313
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Air Module Mercedes ML W166 Interior Safety SRS Control Module A1669001311
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Audi Q7 4L Diesel Alternator Generator Engine Electrical Unit 059903018E
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Mini Cooper R50 R52 W10 116HP Engine ECU Kit DME 7557395 + EWS + Key Manual
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Mercedes W204 Radio Control Function Button Knob Controller Unit A2048704658
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Mercedes SLK R172 Dashboard Screen Multimedia Display Monitor A1729011402
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Parking Brake Control Audi A4 B8 A5 8T Q5 8R Electric Brake Module 8K0907801E
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Engine Wiring BMW F10 M5 F12 M6 Loom Harness Injection Valve Cyl. 1-4 7843329
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Mini Cooper R50 W10 90HP Engine ECU Kit DME 7527610 + EWS + Key Automatic
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Mercedes W169 W245 Door Cable Harness Wiring Loom Front Left N/S A1695407705
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BMW E87 E90 E91 E92 E93 Fuse Box Power Distribution Front 6906621
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Range Rover L322 3.0 Starter Motor Diesel Engine Denso 7787925
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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 .