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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Mini Cooper S F55 F56 F57 F60 Valvetronic Wiring Cable Loom Harness 8678960
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Front Subwoofer BMW F90 M5 G11 G30 Central Right O/S Bass Speaker HiFi 6801076
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CD Radio Mercedes W639 W906 Audio Stereo Head Unit A9069006001
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Cable Wiring BMW E81 E87 Petrol N43 Positive Battery Lead Petrol 116i 118i 120i
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Rain Sensor Peugeot 3008 5008 Citroen C5 Windscreen Light Unit 9674436980
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Mercedes Sprinter W907 W910 Body Control Module ECU A9079007404
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Mercedes W169 A180 266.940 Engine Control ECU Kit A2669000200 Key Lock Automatic
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BMW E60 E81 E90 LCI Adapter Cable CIC System 9185171
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Mercedes W221 Fuse Box SAM Module Control Unit Module ECU A2215403862
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
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VW Volkswagen Golf Mk7 Radio Control Head Unit CD Player 5G0919605
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Mercedes W164 OM629 Diesel Engine Motor Wiring Loom Cable Harness A6291501933
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D
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Audi A4 B9 8W Q5 FY Audio External Connector AUX USB Port 8W0035708
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Mercedes GLE W166 Wiring Harness Automatic Gearbox Cable Loom A1664403436
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Vauxhall Combo D 1.3 Cdti A13FD Engine Wiring Harness Loom 00552479600
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451701
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Dashboard Monitor BMW G30 G31 Onboard Central Display Screen 10,25" 8715339
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Audi A4 B8 Avant 2.0 TDI Quattro Alternator Generator 03L903017
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Battery Clamp BMW F30 F31 F32 F80 Safety Positive Plus Pole Red 9208241
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Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072
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Alternator Mercedes W176 C117 X156 X117 Petrol Engine Generator A0009060803
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Land Rover Freelander 2 Navigation Nav Reader DVD CD Control Unit 6G9210E887EE
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Mercedes-Benz W169 W245 48V Technology SAM Control Module Fuse Box A1699001600
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Mercedes C118 W177 W247 Three Phase Alternator A0009062609
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Mercedes W906 OM651.955 Diesel Engine Wiring Harness Loom Cable A6511502620
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Mini One R56 LCI R60 90HP Diesel N47N Engine ECU Kit DDE 8506666 + CAS3 + Key
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Audi Q7 4L 3.0 TDI BUG 233HP Engine Contol Unit ECU 4L0910401T Automatic
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Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186G
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Volkswagen Golf Mk7 Gateway Control Unit Module 5Q0907530L
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Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU A6519007500 Automatic
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Mercedes W470 Diesel Engine Starter Motor A4709060300
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Mercedes SLK R172 Airbag Module SRS Control Unit ECU A1729015805
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Audi A1 8X 1.2 TFSI CBZA Petrol Engine Alternator Generator 04C903023L
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BMW 1 Series E90 Footwell Light Control Module (LCM) NSW 6987997
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Mercedes X156 GLA250 270.910 122HP Engine Control Unit Module ECU A2709000900
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BMW Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457528
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BMW 1 Series E88 ECU Body Control Module H3 Junction Box PL2RR 9247474
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BMW F20 F21 F22 F30 F31 F32 Mini F55 F56 F57 Head Unit Basic Media DAB 8794297
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BCM Module BMW E60 E63 E64 Body Control Module 6135 9114447
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Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit ECU Manual 6C1112A650AN
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VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601F
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BMW E60 E65 Petrol 530i 730i M54 Engine Control Unit DME 7527072 Automatic
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Citroen C4 Starter Motor Diesel Engine HDI Actuator Unit 9664016980
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Mercedes W211 W220 Crash Sensor Left Right N/O/S A0025426918
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BMW E93 LCI Footwell Light Control Unit Module Lear FRM3R PL2 9230450
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Renault Master III Engine Alternator Mounting Bracket Carrier 8200803443
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BMW E60 E63 E65 Adaptive Light Control Unit Module LM E6X AHL 9203082
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BMW Z4 E89 Roadster HiFi Speaker Sound System Amplifier AMP Unit 9118032
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BMW E90 Footwell Light Module ECU Control Unit PL2 FRM Lear 9204536
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BMW E65 E66 730i M54 Diesel Battery Cable Starter-Base B+ 7522057
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Audi TT 8J Body Control Comfort Unit Module BCM Unit 8J0959433
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Light Module BMW F10 LCI Control Footwell Lightning ECU Unit FRM3 9313930
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PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Imperial Blau Blue A89
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BMW F10 F11 F01 Control Unit Module ECU Fuel Pump 7276384
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Mercedes ML W164 PDC Module Parking Distance Control Unit Sensor A1645450216
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BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504
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Antenna Wiring Mercedes W211 Rear End Antenna Wiring Harnes A2114409906
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BMW E46 N42 316i 318i Petrol Engine Alternator Generator Remy 7521382
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BMW 6 Series E64 Aerial Antenna Amplifier Diversity DAB 6935048
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Mini Cooper S R56 Rear Bumper PDC Cables Wiring Loom Set 9140177
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Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793M
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 6902659
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Mercedes Sprinter W907 311 CDI 651.958 114HP Engine Control Unit ECU A6519007103
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Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6961364
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BMW E87 E90 CAS2 ECU Control Unit Module 61356943791 6943791
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BMW 1 3 Series E87 LCI E90 118d 318d N47 Diesel ECU KIT DDE 7809001 + CAS3 Key
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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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Mercedes ML W163 Body Control Module Unit BCM ECU A1635459032
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BMW 5 X5 Series E39 E53 Radio Business CD Player 6908783
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BMW 1 3 Series 2 E81 E87 E90 E91 E92 6-disc CD Changer Without Magazine 6967641
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Starter Motor BMW G20 G21 G30 G31 G32 GT G11 B57 3.0 Diesel Engine 8589891
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Mini Cooper S F55 F56 Petrol Positive Battery Alternator Starter Cable 8654635
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VW Volkswagen Golf Sportsvan Multimedia Sat Nav Radio Display Screen 5G6919605B
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Mercedes Vito W639 Automatic Gearbox EGS53 Control Unit Module ECU A0009001700
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD Player 9263459
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Audi A3 8V Gateway Control Module Unit ECU 5Q0907530S
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BMW E65 E66 CD Audio System Controller Player 9130764
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Mercedes C118 W177 W247 Front Door Module Control Unit Right O/S A1779007616
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Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
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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 .