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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Part no. A1648705094
Mercedes ML W164 Audio Stereo Radio CD Player Head Unit A1648705094
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Yaw Sensor Mercedes ML W164 W221 W251 ESP Rotation Rate Unit Module A0045423918
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Ford Focus Mondeo Diesel Engine Alternator Generator Engine Unit 6G9N-10300-UD
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BMW X5 E53 X3 E83 Control Unit Xenon Adaptive Headlight Ballast 6939069
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BMW 7 Series E65 E66 E67 Rear Seat Headrest Adjustment Actuator Drive 7007017
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Audi S8 D3 Digital Radio DAB Tuner Receiver Module Kenwood 4E0035583C
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BMW E81 E87 LCI E90 E91 N43 Petrol Engine Control Unit ECU DME 7578032 Manual
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Peugeot 307 Citroen C4 C5 1.6 HDI Diesel Engine Starter Motor 1638115880
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Audi TT 8J Body Control Comfort Unit Module BCM Unit 8J0959433
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Battery Cable BMW X3 F25 Wire Lead Positive Alternator Starter B+ 9243645
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BMW 1 2 Series 1 F20 F21 F22 Central Information Display Screen 6,5" 9237539
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Control Unit BMW F01 F10 F20 F21 F30 F87 Integrated Supply Module Unit 7591534
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Footwell Module BMW E93 Light Control LCM PL2 FRM II 9166708
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BMW F20 F21 F31 F32 F87 Body Control Comfort Module Unit BCM 8733501
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Mercedes W164 Gateway Control Unit Gateway Module ECU A1645402601
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Module ULF BMW X3 X5 E53 E83 E87 Hands Free Bluetooth Charging 6980130
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BMW E60 E61 LCI N47 520d 177HP Engine Control ECU DDE Kit 7812500 Automatic
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Volkswagen Touareg PDC Parking Sensor Control Unit Module 7L0919283F
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BMW Z4 Series E89 Cabrio Roadster Radio Antenna Mast Aerial FM Bumper 9123994
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BMW X3 E83 LCI 2.0d N47 177HP Diesel Engine Control Unit ECU DDE 7811999 Manual
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Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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BMW 3 Series E90 E92 Antenna Amplifier Diversity TV Function 868 MHZ 6928936
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Audi TT 8J Gateway Control Unit Module 7N0907530AL
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BMW E90 E91 LCI N47N 320d 184HP Engine Control ECU Kit DDE 8518269 + CAS3 + Keys
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Negative Lead Battery Cable BMW G11 G30 G31 X3 G01 IBS Wiring Harness 6840519
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BMW X3 E83 Telematics Bluetooth Control Unit Module Computer 9207074
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BMW 3 Series E91 E92 E93 Hifi Speaker Tweeter Rear 6942461
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BMW E64 Air Module ECU Control Unit Centre Vehicle Sensor 6976466
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BMW 3 X1 F30 LCI F48 Telematics Telephone Control Module ATM ECE 3G 6809306
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM3R 9251488
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Wiring Loom Cable BMW E46 X5 E53 X3 E83 Seat Occupancy Sensor 8240500
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Part no. 3D0941329E
Volkswagen Golf Mk7 Headlight Cornering Module Control Unit 3D0941329E
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Display Screen Mercedes W176 W246 Central Information Dashboard Dash A2469016002
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Part no. 7805585-5
BMW X5 E70 3.0d M57N2 235HP Engine ECU Kit DDE 7805585 + CAS3 + Key Automatic
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D
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Part no. 3456952
MINI Cooper R55 LCI Footwell Light Module Unit High EKS PL3 FRM3R 3456952
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Starter BMW E60 M57 Engine Starter Motor 7794952 0986021230
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BMW 1 Series E87 Footwell Light Control Module Lear FRM3R PL2 9249080
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Part no. 7521137-2
BMW X3 E83 E46 E60 E61 E65 Alternator Generator 150A 7521137
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BMW E61 Body Control Module Unit ECU BCM KBM High 6957529
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BMW E60 E61 LCI Front Bumper PDC Loom Cables Wiring Set 6928362
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Head Unit BMW F07 GT Car Infotainment Computer Sat Nav Multimedia DAB 9275510
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Cassette Player Citroen Berlingo Peugeot 206 Audio Head Unit 964544367700
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Radio Professional BMW E81 E82 E87 E88 E90 E91 E92 E93 Autoradio CD 9231928
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BMW 5 7 X5 Series E34 E38 E39 E53 Petrol Starter Motor 1729981
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BMW 3 Series E90 Radio Professional CD Audio Player Control Unit 9205962
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Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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Mini R57 Convertible ECU Footwell Light Module High EKS PL3 FRM3R 3455896
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Mini Cooper R50 R52 W10 1.6 116HP Petrol Engine Control Unit ECU 7557395 Manual
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Part no. 8073593
BMW F87 M2 N55 Engine Wiring Loom Harness Injection Valve Ignition 8073593
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Part no. 7L0959933H
VW Touareg 7L Body Control Comfort Unit Module STG Convenience ECU 7L0959933H
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Part no. 284B18533R
Renault Trafic 3 Vauxhall Vivaro B Body Control Module ECU BCM T4 L4 284B18533R
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Mercedes W447 Drive Train Sensor Can Distributor A0045467740
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Mercedes W211 PDC Parking Sensor Module Control Unit A2115457332
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BMW 3 Series E46 Petrol Wiring Loom Harness Engine Gearbox Module 7512079
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Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S
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Audi A5 8T Navigation System Car Sat Nav Computer Head Unit CIC 4G0035061B
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BMW F10 F11 F20 F21 F30 F31 F32 Navigation DAB Head Unit High 9289614 9290361
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BMW E92 Coupe Footwell Xenon Light Control Module Lear FRM3R PL2 9286882
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Mercedes ML W164 Passenger Side Control Unit Module Fuse Box SAM A1649004101
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Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118701826
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Part no. A2129003608
Air Suspension Module Mercedes W212 Regulation Level Control Unit A2129003608
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Audi A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S
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Mini Cooper One R57 Footwell Light Module Low EKS ECU PL3 FRM3R 3455895
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Part no. 7530354
Mini Cooper R50 R52 Power Steering Pump Power Cables 7530354
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Part no. 6929101
BMW 6 Series E63 E64 Front Central Bass Subwoofer Speaker HiFi 6929101
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Part no. 9683140380
Air Intake Duct Peugeot 3008 Air Intake Channel Unit Duct 9683140380
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Part no. A0121549802-1
Mercedes W211 Alternator Generator A0121549802
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Part no. A0009064508
Alternator Generator Mercedes W213 C238 C253 OM656 Engine Valeo 250A A0009064508
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Part no. 8T0035415B
Audi A4 B8 Loudspeaker Front Door Left Right N/O/S Bang&Olufsen 8T0035415B
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BMW E90 E91 325i E60 LCI 525i N53 218HP ECU Kit DME 7586940 CAS3 + Key Manual
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Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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BMW Z4 E89 sDrive 20i N20 184HP Petrol Engine ECU Kit CAS3 + Key 7645762 Manual
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Audi A8 4E S8 D3 Battery Voltage Control Module 4E0910181C 4E0915181C
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BMW E93 LCI Boot Trunk Lid Tailgate Wiring Loom Harness Cable 9227238
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Mercedes-Benz C M Class W163 W203 Motorola Telephone Control Module A2308204226
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BMW 7 E65 E66 Front Bumper PDC Ultrasonic Sensor Schiefergruen Slate Green 449
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Wiring Harness Mercedes W221 OM642 Engine Wiring harness Loom A6421509089
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BMW E87 E90 E91 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Manual
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PDC Module Citroen C4 Berlingo Peugeot Parking Assist Control 0263004204
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Mercedes W251 R 320 CDI 642.950 224HP Engine ECU Kit A6421506434 Keys Lock
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Mini Cooper R55 R56 R60 CAS 3 ECU Control Unit Key Reading Module 9221719
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BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Electronic Unit FEM 8733499
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Mercedes Sprinter W906 Diesel Starter Motor Engine Valeo A0061517401
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BMW E90 M-Audio System CD Player Controller Navigation Sat Head Unit 9200447
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BMW E81 E87 LCI E90 E91 120d 320d N47 ECU KIT DDE 8506438 CAS 3 Key Automatic
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Mercedes-Benz S-Class W221 Multi Purpose Camera Control Unit Module A0009050538
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BMW 1 3 Series E87 E90 N45 116i 316i Petrol ECU KIT DME 7550688 + CAS2 + Key
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Head Unit Mercedes GLE C292 Radio CD Player Navigation Media A1669003722
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BMW Mini Cooper S R52 R53 Gearbox Basic Control Unit EGS 7524695
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BMW E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 9119707
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BMW E88 E93 LCI ECU Control Unit Air Module 9248298
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Part no. A2038209385
Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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BMW E87 Light Module ECU PL2 FRMFA 61359128183 9128183 9128223
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Part no. 8C1T14A073BG
Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T14A073BG
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BMW E87 LCI E90 Professional Navigation Connecting Cable 6935686
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Part no. 9340337
BMW Z4 Series E89 LED Xenon Footwell Light Module Control Unit ECU FRM3R 9340337
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Part no. 6945144
BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6945144
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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 .