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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Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN
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Earth Ground Cable BMW E90 E91 E92 Negative Battery Lead Wiring 7549396
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6872837
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Airbag Module BMW X1 F48 F45 F46 Air Bag Control Unit ECU 9390576
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key Automatic
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Mercedes W203 W639 Audio 10 CD Player Audio Stereo Radio Head Unit A2038202686
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Audi A3 S3 8Y Engine Alternator Generator Electric Unit 14V 140A 06K903026C
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Mercedes C205 Midline Sound Audio Amplifier Unit A2059000044
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Porsche Boxster 986 Sunroof Control Relay Module 98661819900
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BMW E90 E91 LCI N47N 320d 184HP Engine Control Unit ECU DDE 8510829 Automatic
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Honda Civic Starter Motor Actuator Unit 12V 31200-PSA-J52
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BMW E60 E63 Body Control Module ECU Control Unit 9136039
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Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008
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Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD
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Central Information Display BMW F10 F11 On-Board Screen 10,25" 9247872
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Audi RSQ3 F3 2.5 TFSI Quattro 400HP DNWA Engine Unit ECU 07K907309F Automatic
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BMW X3 F25 Antenna Aerial Diversity Amplifier Unit 868 MHZ 9276064
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BMW E39 Radio Business Cassette Player 6958566 8377005
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BMW F20 F21 Wire Cable Plug Wiring Diagnostic Socket OBD 9253563
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Head Unit Mercedes CL203 CLC CD Player Radio Audio Telephone Unit A2039000100
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Mini Cooper Cabrio R52 Convertible Folding Roof Module ECU 6960792
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Ford Transit Starter Motor Engine 2033125
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BMW E81 E87 E90 E91 E92 E93 Active Steering Control Unit Module 1277022189
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MINI One 1.6 R50 R52 W10 90HP Engine ECU Kit DME 7545789 + EWS + Key Manual
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VW Volkswagen Golf 6 Gateway Control Unit Module ECU 1K0907530AD
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Alternator Bracket Mount 117105124R
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Audi Q7 4L Fuse Box Relay Control Unit Module 7L0937503D
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BMW E87 E90 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Automatic
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BMW F10 F20 F30 F31 Body Module Control Unit FEM 9303546
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
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Porsche Boxster 986 Rear Screen Heating Relay Module 99661511700
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BMW E93 Xenon Footwell Light Module Control Unit ECU PL2 FRM II 9159808
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Skoda Fabia Mk2 5J Engine Alternator Generator Unit 14V 110A 06F903023D
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BMW E65 E66 Airbag ECU Control Unit Gateway Module 6967658
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Audi A4 B9 2.0 TFSI CVKB 190HP Engine Control Unit ECU 06L907309A Automatic
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Gateway Module BMW F10 F11 Central Control Unit Lear ZGW-01 High 9236462
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Mini Cooper R55 R56 N12 1.6 120HP Engine Control Unit ECU DME 7588502 Manual
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Mercedes W639 W906 Battery Terminal Fuse Box Control Unit Module A6385454440
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Navigation Screen Mercedes W212 1 Head Unit Sat Nav Center Display A2129005000
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Third Stoplamp Cover BMW F30 F80 M3 Rear Stop Lamp Brake Trim 7259877
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Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
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Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549
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Peugeot Boxer Citroen Relay Engine Starter Motor Diesel Valeo 9646972280
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BMW E90 E91 320d N47 Engine Control Unit Module ECU Kit DDE 7811700 CAS3 Key
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Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823
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BMW 6 Series E63 E64 Front Central Bass Subwoofer Speaker HiFi 6929101
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Telematics Module BMW F20 F30 Control Unit Bluetooth Combox ECU 9257151
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8580307 CAS3 Key Automatic
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Mercedes ML W164 SAM Module Passenger Side Control Unit A1645402501
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BMW E46 Door Cable Convertible Wiring Loom Front Cables 6913092
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BMW E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 9215952
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BMW Mini R50 One 1.6i Petrol Engine Control Unit DME Manual 7520019 7526780
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual
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Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
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Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
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BMW 1 5 7 Series F20 F21 LCI G11 G30 G31 Diesel Starter Motor Engine 8588898
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Audi Q7 4M Engine Starter Motor Actuator Starter Valeo 3.0 TDI Diesel 057911022
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Starter Motor Renault Trafic II Opel Vivaro A Diesel 2.5 dCi 8200106788
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Mercedes W205 Display Screen Multimedia Navigation Sat Head Unit A2059000441
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BMW X5 E70 Power Distribution Fuse Box Front Control Unit Module 6976384
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Mercedes W906 OM646.985 109HP Engine Unit Module ECU Kit Key A6461506378
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Antenna Amplifier Mercedes CLS C219 Pillar C Left N/S Aerial Module A2198200089
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BMW X5 E70 LCI 40dX N57S 306HP Engine ECU Kit DDE 7810980 CAS3 + Key Automatic
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BMW X1 F48 F45 G30 Telematics Module Bluetooth Telephone Control Unit 8734740
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BMW X5 Series E70 Power Distribution Fuse Box Front 9145115 6931690
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BMW E87 E90 N45 116i 316i 116HP Petrol ECU Kit DME 7557809 + CAS 2 + Key Manual
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Mercedes W167 W256 USB Charger Connecting Unit A1678201302
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Vauxhall Vivaro B Renault Trafic 3 Fuse Box Battery Terminal Module 243501820R
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BMW X5 Series E70 ECU Body Control Module Junction Box High PL4 JBBFEII 9172364
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VW Volkswagen Touran 1T Airbag Side Impact Crash Sensor Air Bag 5M0909606A
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BMW Z4 E46 E89 Mini R50 R52 Parking Control Module Unit PDC 9112463
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BMW 5 Series E60 Wiring Switch Engine Hood Bonnet Cable 6948729 61126948729
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BMW 3 5 7 X5 E38 E39 E46 E53 M54 Engine Generator Alternator 120A
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman 8E5035223
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Rear Bumper PDC Audi A5 Sensor Parking Distance Control 420919275
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Mini Cooper D R60 R61 ALL4 N47N 2.0 143HP Engine ECU Kit DDE 8583423 CAS3 Key
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Engine Wiring BMW i3 I01 Hybrid Rex Sensors Cable Loom Harness 7647591
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Mini Cooper R55 R56 Petrol N12 1.6 ECU Kit DME CAS3 + Key 7640004 Manual
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Audi A4 B7 Sat Navi Stereo Radio Audio Head Unit CD Player 8E0035192T
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Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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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 .