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. 03G903016N
Audi A6 C6 2.0 TDI Alternator Generator 180A 14V Diesel Engine Unit 03G903016N
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Audi Q2 GA Volkswagen T Roc Battery Terminal Positive Cable 5Q0971228AC
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Front Seat Module BMW E87 E90 E91 E92 Control Unit ECU 6926359
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Audi A4 B7 A6 C6 Alternator Generator 1.9 TDI Diesel 06F903023HX
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BMW Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + 2 Keys
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Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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Air Module BMW F20 F23 F30 F32 F36 Domain Control Module ICM Plus Unit 6879835
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Citroen Dispatch Jumpy III 9HM DV6UC 1.6 Diesel Engine Module ECU 9807885980
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Audi Q7 4L 4.2 TDI Quattro Engine Starter Motor Actuator 057911023E
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Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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Starter Volkswagen Crafter Diesel 2.5 TDi Starter Motor Bosch 076911023A
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Mercedes Vito W639 Diesel OM646.980 Engine Control Unit Module ECU A6461502634
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BMW F10 F11 530d N57 245HP Engine Control Unit ECU Module DDE 8511385 Automatic
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Alternator Generator BMW F10 F20 F30 LCI Diesel Engine Unit Denso 180A 7640875
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Mercedes W164 W204 W211 C216 C219 M273 Starter Motor Assembly A0061513701
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AUDI S8 D3 Access Start Comfort Kessy Control Module 4E0907181A
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Alternator Generator BMW F10 F11 F20 F21 F30 F31 N55 Denso 14V 210A 7616119
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Air Module Mercedes W210 SRS Control Unit ECU Control Module A0028203226
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Battery Box Bracket Mercedes W205 W213 W238 Trim Holder Right O/S A2056200018
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BMW 1 3 5 E60 E61 E87 E90 E91 N52 WAI Alternator Generator 155A 11077N
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Mercedes-Benz A-Class W168 Rear Bumper Parking Sensor Wiring Loom Cable Harness
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BMW F10 CAS 4 Car Access System Control Module Unit ECU CAS4 CG+ELV 9282119
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Mercedes ML W164 Radio Player Audio Stereo CD Player Head Unit A1648202679
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BMW X5 Series E53 3.0d M57N 218HP ECU Kit DDE 7800131 EWS3 + 2 Keys Automatic
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Audi Q2 GA Head Unit Navigation Multimedia Control Unit MMI 81A035043
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Audi A4 B7 Alternator Generator 2.0 TDI BRE Engine 06F903023J
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BMW E87 Footwell Light Module Control Unit NSW PL2 FRM II Lear 9166707
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Mercedes W176 W246 USB Interface Multimedia Adapter Connector A1728201700
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Mini Cooper One R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 4542789
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BMW 1 Series E81 E87 LCI Positive Battery Lead Cable Wiring
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BMW 1 Series E87 ECU Light Module Control Unit NSW PL2 FRM II Lear 9204525
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BMW 5 X5 Series E61 E61 LCI E70 Telematics Bluetooth Control Unit Module 9171347
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Mercedes SLK R171 Petrol M271 Fuse Box SAM Relay Control Module A2129007324
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AdBlue Adapter Cable BMW F30 F31 F36 Lead Wiring Harness Loom 6841420
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Mercedes Sprinter W907 Alternator Generator Engine Diesel 250A 14V A0009068302
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Audi A4 B8 3.2 FSI Alternator Generator 06E903016N
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BMW E60 E61 Body Gateway Control Module Unit KGM HIGH Lear 9133143
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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302
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BMW X3 G01 Fuse Relay Box Control Unit ECU 6828076 8795477
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Mercedes Vito W639 Key Reader Ignition Lock Cable Wiring Harness A6395402710
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BMW Z4 E60 E61 E63 E85 Air Module Control Unit Module ECU 9160557
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Rain Sensor Peugeot 3008 5008 Citroen C5 Windscreen Light Unit 9674436980
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BMW 1 3 E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9216273
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Peugeot 307 3008 1.6 HDI Negative Battery Terminal Cable Wiring 9676811880
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Volkswagen VW Touran 1T Alternator Main Cable Wiring Harness Loom 1K0971349EM
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Mercedes W246 B180 CDI 651.901 109HP Engine ECU Kit A6519007600 Ignition + Key
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Ford Mondeo MK3 2.0 TDDi Diesel Engine Starter Motor 2S7T-11000-DC
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BMW Mini Cooper R56 LCI R60 R61 Petrol N16 DME Engine Control Unit ECU 7615981
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Mercedes W221 S350 BlueTEC OM642.862 Engine ECU Kit Ignition + Key A6421508900
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Audi A4 B9 Boot Tailgate Control Module Unit 4M0959107B
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Mini Cooper R56 Footwell Light Module ECU Control Unit Lear PL3 FRM II 3450980
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Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN
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BMW 1 3 5 Series E60 E81 E87 LCI E90 Hands-free Bluetooth Module High MULF2
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Audi SQ5 8R Starter Alternator Engine Wiring Loom Cable 3.0 TDI 8R0971228BG
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BMW E90 E91 E92 335i 306HP Engine N54 ECU Kit DME 7575875 + CAS3 + Key Automatic
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Part no. 8634167
Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Denso 8634167
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459
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Air Module Mercedes ML W166 Interior Safety SRS Control Module A1669001311
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Radio Player Mini Cooper One R55 R56 CD Audio Player Head Unit 3454566
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Audi A7 4G PDC Sensor Wiring Loom Harness Cable Front Bumper 4G8971095C
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B
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*BMW 1 3 Series E87 E90 M-Audio System Controller Navigation Business 6965047
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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S
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Audi A4 B7 Cabrio Folding Top Roof ECU Module Control Unit 8H0959255A
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BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8518168 CAS3 + Key Manual
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A2465406432
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On Board Navigation BMW E60 E63 Display Monitor Screen 8,8" 6952328
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Volkswagen Golf 7 1.6 TDI CLHA 105HP Engine ECU Kit 04L907309B Key + Ignition
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Land Rover Range Sport L320 Diesel Engine Alternator Generator AH22-10300-AB
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Mini Cooper R56 N12 W16 Alternator Generator Napa 7575650
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Mercedes C219 CLS 320 642.920 224HP Engine Unit ECU Kit A6421503972 Key Lock
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Alternator Mercedes W176 C117 X156 X117 Petrol Engine Generator A0009060803
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Mercedes R170 Alternator Generator M111 Petrol Engine 90A A0091547602
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BMW E90 E91 E92 E93 LCI Diesel Alternator Generator 175A 150 14V 8507623
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BMW 3 Series E46 1 Touring Rear Bumper PDC Cables Wiring Loom Set 8369503
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MINI Cooper R50 Lodgesons Steering Wireless Control Unit Module System
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Mercedes-Benz C CLK W202 W208 Right O/S Parking System Warning Display Screen
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Mercedes Benz M-Class ML W164 Damping Insulation A-Pillar Left N/S A1646824930
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Mercedes GLC X156 Estate Trunk Lid Tail Gate Relay Amplifier Module A2229000618
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Mercedes W202 W210 Front Left Door Control Module A2108207526
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Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511502900
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Body Control Module Audi A4 B8 A5 8T BCM Comfort Control Unit 8K0907064CP
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BMW Mini Cooper One R50 R53 Fuse Box Cover Black 1480793 61131480793
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Battery Cable BMW X5 F15 X6 F16 Positive Plus Pole Distribution Wiring 9322056
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Ford Transit Mk7 6000cd Radio CD Player Head Unit 8C1T18C815AC
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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 .