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 X5 X6 E70 E71 M57N2 Alternator Generator 180A VALEO 7801173
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Starter Motor Renault Trafic II Opel Vivaro A Diesel 2.5 dCi 8200106788
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Mercedes W221 Head Unit Radio Player Media Navigation DVD Changer A2218702686
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Radio Business BMW E81 E87 E90 LCI CD Player 9229240
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Audi A4 B9 Air Module System Control Sensor ECU Unit 8W0959655P
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Mini R55 R56 LCI R60 R61 D N47N Engine Injector Module Wiring Harness Cable
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Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332
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BMW 3 Series E90 E91 E92 E93 Engine Starter Motor 0 986 021 230
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Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503
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Comunication Module BMW E83 E46 EXCH Telematics Control GSM Bluetooth 6964113
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Mini Cooper S R52 R53 W11 170HP Engine ECU Kit DME 7545789 + EWS + Key Manual
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Ford Transit Connect 1.6 TDCI Engine Control ECU Module Manual DV6112A650CEC
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VW Caddy 1.9 TDI BLS 105HP Engine Control Unit Module ECU 03G906021PD Manual
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Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Chrysler Grand Voyager Alternator Mounting Bracket Carrier LRA02830
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BCM Module Mercedes W117 W176 W246 Body Control Module Unit ECU A1569003203
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Audi TT 8N Amplifier BOSE Premium Audio Sound System Module 8N8035223A
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Mercedes GLC X253 Relay Battery Control Cut Off Out Relay A0009825323
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Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J
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Engine Alternator BMW E60 E61 E65 E66 Diesel Alternator Generator 170A 7789981
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BMW E90 Body Control Module M Junction Box PL2RR JBBFE IIIR ECU 9364819
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Mercedes S204 Estate Fuse Box Rear SAM Module Control Unit A2049005003
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STAG QBOX Basic LPG CNG 4-Cylinder Control Unit Module Injection Controller ECU
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Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B
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Audi Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651
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BMW E60 LCI E61 Map Fuse Box Grouping Diagram Card 9156547
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Ford Transit MK7 2.4 TDCI T24DD0P Diesel Engine Control Unit ECU AC1112A650BC
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Fuse Box Mercedes C118 W177 W247 Engine Compartment Relay Box Module A1775404307
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MINI Cooper R52 R53 W11 170HP Engine ECU Control Unit DME 7545789 Manual
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BMW F15 F16 F31 F36 Module Control Unit Trunk Lid Rear Tailgate Lift 7384722
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BMW G20 Head Unit Navigation Audio Player Controller Module 9875930
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Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652A
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BMW E90 LCI Amplifier Hifi Speaker System Control Unit Module 9143156 6960925
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Audi A4 B7 Servotronic Steering Control Unit Module 8E0907307D
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Peugeot 5008 2.0 HDI Diesel Injector Wiring Loom Cable 968824678
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BMW F30 F31 F32 Towing Hitch Trailer Hook Module Control Unit 6872319
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BMW F10 F30 X1 F48 Mini F54 Rear Tailgate Smart Opener Top Wire Sensor 7391042
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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302
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MINI Cooper One R50 Control Unit For Radio Remote Control 433MHZ 4109140
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Citroen Relay Peugeot Boxer Fiat Ducato Fuse Box Control Unit 1367661080
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Seat Leon Mk3 Door Module Control Unit Front Driver's Side Door 5Q4959593E
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Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101
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Electronics Charging BMW E60 E87 E90 E91 Hands Free Module MULF2 9181378
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Mini Cooper R50 R52 W10 116HP Engine ECU Kit DME 7557395 + EWS + Key Manual
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Air Module Mercedes W639 W906 Control Unit ECU Air Sensor 0285011060
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BMW E87 E90 E91 N46 120i 320i Engine DME 7561834 ECU KIT CAS2 + 2 Keys Manual
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3 x BMW E88 E89 E93 Convertible Cabrio DWA Alarm System Module 6989713
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Mercedes W221 Door Module Front Door Left N/S Control Module A0038206326
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Opel Zafira Insignia 2.0 A20dth Cdti Glow Plug Wiring Loom Harness 55567591
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Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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Seat Ibiza 6J Central Body Comfort BCM Interface Module 6C0937089D
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Mercedes-Benz B W245 Front Bumper Parking Distance Sensor Parktronic Primed
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Mercedes C140 Body Control Comfort Unit Module BCM Unit ECU A0185458332
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Renault Master III Contact Conector Male Sliding Doors 252160006R
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Audi RS4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064JJ
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BMW E87 LCI E90 N43 116i 118i 320i DME Engine Control Unit 7583225
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Audi A7 4G8 Westfalia Towing Hitch Module Control Unit 506737
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BMW F10 F11 On Board Display Central Information Screen Monitor 10" 9243897
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GPS Navigation BMW E81 E90 LCI Business System Car Infotaiment Computer CIC
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Audi A4 B9 Battery Positive Terminal Cable Plus Pole Wiring Harness 8W0915459E
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BMW E60 E61 Radio Player M-ASK M-Audio System Controller CD Head Unit 6983843
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Tailgate Smart BMW F10 F30 F34 Mini F54 F60 Opener Control Unit Module 7491439
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Tailgate Lift Module BMW G20 G30 G12 Rear Boot Trunk Lid Control ECU 5A19DB2
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BMW X1 E84 E87 E90 E91 E92 LCI Radio CD Professional DAB 9302159
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BMW E88 E90 E91 E92 LCI F20 F21 F30 Ignition Wiring N55 Engine Harness 7592511
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Mini Cooper F55 F56 Control Unit Module Active Sound Design Amplifier 6827161
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BMW Z4 E89 Footwell Light Module Control Unit ECU FRM3R PL2 Lear 9390489
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Battery Cable BMW X5 X6 E70 E71 IBS Negative Battery Lead Cable 9164357
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Ford Transit MK7 Diesel Glow Plug Relay Control Unit Module CC11-12B533-AB
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BMW G20 Axle Differential Module Control Unit ECU 5A11E72
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Mercedes W221 Front Centre Dashboard Speaker Logic 7 A2218207502
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BMW E81 E90 E91 E60 Petrol Alternator Generator 150A 7550967
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Starter Renault Trafic II Opel Vivaro A 2.0 dCi Starter Motor Remy 233002654R
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BMW X5 E39 E46 E53 Motorola Hands-free Electronics Control Unit ECU 6921857
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Volkswagen VW Passat B7 Driver's Seat Control Unit Module ECU 3C8959760E
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter NAPA A6519062300
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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 .