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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BMW E65 Cable Harness Door Panel Card Rear Wiring Loom 6913147
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Parking Brake Control Audi A4 B8 A5 8T Q5 8R Electric Brake Module 8K0907801E
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Air Module BMW E60 E61 E63 Gateway High Control Unit ECU 6960383
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Ford Transit Custom Mk1 Dashboard Radio Head Unit Display H1BT-18B955-EF
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player Control Unit 9146710
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Mercedes-Benz E W210 Seat Memory Control Unit Module Front Left A2108206526
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Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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Part no. E90 Wiring Loom Set PDC Rear-3
BMW 3 Series 3 E90 E90N E91 E91N LCI Wiring Loom Set PDC Rear Set Complete
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Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB
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BMW 5 Series E60 Seat Control Unit Module Left Right N/O/S Temic 6927270
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Mercedes W212 E220CDI OM651.924 Engine ECU Kit Key Lock Ignition A6519005301
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Door Wiring Mercedes W176 W246 Front Passenger Side Cable Harness A2465403505
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BMW X5 E53 E81 E87 E90 LCI Battery Mounting Bracket Bolt Holder
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Headlight Module Audi A6 C7 A7 A8 Headlamp Range Control Unit 4H4907357C
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BMW E91 Light Control Module ECU PL2 FRMFA Lear 61359128183 9128183
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Engine Wiring Mercedes W204 W212 OM651 Diesel Harness Loom Cable A6511504633
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Part no. 4M1907468D
Audi A4 B9 Gateway Control Module Unit ECU 4M1907468D
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€151.95
€129.16
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If paid before 14:00
Part no. 04L907309E-2
Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Air Module BMW E60 E63 Control Unit Centre Sensor ECU 6952994
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Alternator Generator BMW E90 E91 E92 E93 LCI E84 F25 Diesel N47N 8507624
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BMW E65 E66 Sensor B-pillar Right O/S Air Module Crash Sensor 6970895
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Audi A5 8T 2.0 TFSI CDNB 180HP Engine ECU Kit 8K2907115Q 2 Keys + Ignition
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Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
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BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8625241 + FEM + Key
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GPS Navigation BMW E81 E90 LCI Business System Car Infotaiment Computer CIC
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Audio Module Mercedes C238 Premium Sound E Control Unit A0009000518
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Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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Peugeot 307 Fuse Box BSM Control Unit Module 9664055780
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BMW E81 E87 E90 E91 Power Distribution Fuse Box Front 9119445
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BMW E60 E61 E63 Control Unit Gateway Module ECU 6975686
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Mercedes H243 H247 Body Control Module BCM Unit ECU A2479005615
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BMW E87 E90 Radio Business CD Player Audio Control Unit E81 E91 9200101
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BMW F20 F30 F31 118d 318d N47N 143HP Engine Control Unit ECU DDE 8573258 Manual
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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Volkswagen Golf CD1 Antenna Amplifier Transmitter Receiver Module ECU 5WA035741B
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Ford Transit Mk7 Handbrake Wiring Cable Battery Wire Cabling 6C1T-14K076-CC
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BMW 5 X5 Series E53 E60 E61 PDC Parking Ultrasonic Sensor Rear Black 6989068
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Starter Motor BMW E60 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Unit NSM1504
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Mini One R50 R52 W10 1.6 90HP Engine Control Unit ECU Module 7557395 Automatic
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BMW E88 ECU Body Control Module H3 Junction Box 9177985
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Fuse Box MINI R56 LCI Cooper One PL3 SPEG H5 Distribution Control Unit 3456852
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Positive Cable BMW Z4 E89 Convertible Battery Plus Pole Power Red 9249103
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BMW E90 E92 E93 M3 Engine S65 420HP ECU Control Unit Kit DME 7846409 + CAS3 Key
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Mercedes W204 W207 Fuse Box Prefuse Box Module Relay Holder A2075402550
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Air Module ECU Mini F54 F55 F56 F57 F60 Crash Control Unit Module 9484304
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BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486
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Audi A8 D4 Boot Trunk Lid Tailgate Lift Control Unit Module ECU 3AA962243D
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Mercedes W169 W245 B170 M266.940 116HP Engine Control Unit Set A2661539679
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Part no. 7787356-1
BMW E46 E60 LCI E83 E87 M47N2 Diesel Starter Motor 7787356
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Part no. 6942637
BMW 5 Series E60 M-Audio System Controller Navigation Head Unit 6942637
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Part no. A2038201585
Mercedes W203 Door Control Module Front Left N/S A2038201585
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Part no. 3450756
Mini Cooper R55 R56 Harman Becker Hi-Fi Audio Speaker System Amplifier 3450756
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Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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Mini One R50 W10 90HP Engine Control Unit ECU Kit DME 7545789 + EWS + Key Manual
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Part no. 7805098-1
Engine Starter Mini One D W17 R55 R56 Engine Starter Motor Diesel Valeo 7805098
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Part no. A4479009509
Mercedes W447 114CDI SAM Comfort Control Unit Module Box ECU A4479009509
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Audi Q3 8U Battery Positive Terminal Cable Plus Pole Wiring Harness 5N0971228F
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Audi A3 8P 2.0 TDI 170HP CBBB Engine ECU Unit Kit 03L906022FD Key + Ignition
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Mercedes W205 W212 W246 Parking Distance Sensor Parktronic White A0009059300
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BMW E88 Convertible Air Module Sensor ECU Control Unit Module 9171925
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Mini Cooper R50 Engine W10 116HP Engine ECU Kit DME 7513983 EWS Key Automatic
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Mercedes W163 Fuse Main Box Relay Comfort Control Module Unit CMM A1635450205
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Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469006710
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Audi A7 4G8 3.0 TDI CZVA Adblue Control Module Unit ECU 4G0907355G
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BMW F30 F31 330dX N57N Engine Gearbox Module Wiring Cable Loom Harness 8518802
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907063AD
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Gearbox Cable BMW F90 M5 F91 M8 Engine Wiring Automatic Transmission 9882602
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Mercedes C204 C250CDI OM651.911 204HP BlueEFFICIENCY Engine ECU Unit A6519007401
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BMW 5 6 7 Series E60 E61 E65 N62N Petrol Alternator Generator 180A 7542934
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Audi TT 8J Parking Distance Sensor Control Unit Module Rear 8P0919475F
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BMW E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 9181326
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Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit 3456760
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Mercedes S212 Estate Roof Antenna Cover Shark Cosmos Black Metallic - 303
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BMW 3 5 X5 Series E46 E39 E53 M57 3.0d DDE 7789376 Engine Control Unit Module
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450601
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BMW 5 6 E60 LCI E63 Radio CHAMP Business CD Player System Controller 9192680
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Audi A4 B7 A6 C6 Alternator Generator 1.9 TDI Diesel 06F903023HX
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BMW 1 Series E81 Body Control Module L2 61359264569 9264569
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Ford Mondeo MK4 Negative Battery Terminal Cable Wiring Connecting 6G9T14301BK
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Mercedes-Benz A C W169 W204 Battery Relay Module Box A1695450046 A0035422619
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Renault Trafic II Opel Vivaro A 1.9 DCI Alternator Generator 8200086130
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Audi A5 8T Parking Brake Handbrake Module Control Unit 8K0907801C
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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 + EWS + Key
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 6943441
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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 .