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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Audi Q7 4L Air Module ECU Sensor Control Unit 4L0910655D
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BMW X3 E83 LCI 2.0d N47 Engine ECU Module Kit DDE 7811111 + EWS + Key Automatic
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Air Module Unit BMW F10 F11 F30 F31 F25 F12 F13 X3 F25 ECU Control 9319493
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907063AD
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On-Board Screen BMW F10 F11 LCI Central Information Display 10,25" 9321016
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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Seat Module Mercedes W203 CLK W209 W211 Front Memory Control Unit A2118704726
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BMW X5 F15 X6 F16 30dX N57N 258HP Engine ECU Kit DDE 8586540 BDC Key Automatic
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Sam Module Mercedes ML W164 Rear Relay Box Control SAM Unit A1649004400
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BMW E60 E81 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 6943834
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Alternator Generator Peugeot 207 Diesel 12V Electrical Unit 9646321780
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VW Polo 9N MK4 Fabia II 1.4 TDI BMS Alternator Mount Support Bracket 038903143AG
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Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186P
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BMW X1 E84 Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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BMW X3 F25 Tailgate Trunk Lid Wiring Harness Rubber Cover Right O/S 9285768
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Mercedes W204 Safety Crash Impact Control Module Unit A2048208285
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BMW X1 Series E84 ECU Footwell Light Module BASIS PL2 FRM3R Lear 9240527
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Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
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Mercedes C140 Gearbox Module Transmission Basic Control Unit A0175450632
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Volkswagen Seat Skoda Audi Gateway Control Unit Module ECU 5Q0907530AF
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Citroen Relay Peugeot Boxer Fiat Ducato Fuse Box Control Unit 1367661080
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Xenon Control Unit BMW X5 E70 E90 E91 LCI Adaptive Headlight 7189311
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Air Module Sensor Mini R57 Cabrio Convertible Crash Control Unit ECU 9807168
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Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K
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Audi A6 C6 Antenna Amplifier Control Unit Module ECU 4F9035225H
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BMW F20 F21 F30 F31 Air Module Control Unit ECU Controller 6826983 0 285 013 626
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Mercedes W213 SAM Body ECU Control Module Unit A2139009722
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Peugeot 5008 2.0 HDI Diesel Injector Wiring Loom Cable 968824678
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Audi A1 8X Q3 8U VW Tiguan Mk1 Rear Differential Control Module Unit 0AY907554J
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Audi A1 8X PDC Assistance Parking Distance Control Module Unit ECU 8X0919475AE
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Alternator Mercedes ML W164 GL X164 Diesel OM629 Bosch 14V 220A A6291500450
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Fuse Box Citroen Berlingo Peugeot Partner Control Unit Module 28116487
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Rear View Camera BMW F07 GT Trim Panel Cover Boot Lid Tailgate 7223190
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Volkswagen VW Jetta Mk6 Interface Module Multimedia Control 5N0035729
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Audi A3 S3 8P Engine Bay SAM Relay Fuse Box Module Control Unit ECU 1K0937124P
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MINI Cooper R53 W11 170HP Engine ECU Kit DME 7527610 EWS Key Manual
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Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469003014
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Radio Professional BMW F20 F21 F30 F31 CD Player DAB Bluetooth 9381305
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Opel Zafira Insignia 2.0 A20dth Cdti Glow Plug Wiring Loom Harness 55567591
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Audi A6 C6 CD Player Changer Multimedia Module Control Unit 4F0035110A
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Mercedes W203 CD Media Player Radio Audio 20 Phone Head Unit A2038705089
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Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943
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BMW F10 F11 F01 LCI Central Gateway Module ECU Control Unit LEAR ZGW-02 9291449
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Audi A3 8L TT 8N Battery Cable Positive Wire Lead Terminal 1J0971228AE
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Mercedes-Benz B W245 Front Bumper Parking Distance Sensor Parktronic Primed
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Mini Cooper R50 R53 Control Unit Module RPA Tire Puncture Warning 6801252
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Volkswagen Passat B7 PDC Parking Assistant Module Control Unit 3AA919475N
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Ford Fiesta MK7 Battery Box Tray Housing Holder Bracket 8V2110718AB
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Audi A4 B9 Battery Positive Terminal Cable Plus Pole Wiring Harness 8W0915459E
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Mercedes ML W163 SRS Control Module Sensor Unit Temic A1635422218
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Mercedes W164 M113 Petrol Engine Starter Motor A0061510601
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BMW E36 E38 E85 Mini R52 R57 2x Change-Over Contact Relay Violet Set 1388911
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Volkswagen Golf Mk7 BCM Convenience Body Control Module Unit ECU 5Q0937084CL
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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BMW 3 5 X3 X5 Series E39 E46 E53 E83 Control Unit Control Unit EWS IV 9145349
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Porsche Macan 95B Navigation Tracking Control Module 7PP035620GC
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Mercedes EQA350 H243 4matic Electric Battery Charger Control Module A0009009935
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BMW E88 E90 E91 E92 LCI F20 F21 F30 Ignition Wiring N55 Engine Harness 7592511
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Alternator Generator BMW E90 E91 E92 E93 LCI E84 F25 Diesel N47N 8507624
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BMW 5 6 E60 E63 LCI Body Control Module ECU Control Unit KBM Basis 6957528
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Skoda Octavia 5E Front Door Control Module Unit Driver's Side 5Q4959393B
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9166667
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BMW F20 F30 F36 Front Electronic Module Control Unit FEM 9381102
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Mercedes-Benz W169 W245 CD Player Radio Audio Head Unit A1698204789
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BMW F10 Footwell Light Module Control Unit ECU FRM III TEMIC 9383695
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Audi S8 D3 Fuel Tank Flap Actuator Motor Electric Linkage 4E0862150
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Mercedes W221 C216 Keyless Go Easy Entry Control Module 433Mhz A2218702292
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Fuse Box Mercedes C118 W177 W247 Engine Compartment Relay Box Module A1775404307
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Mercedes X253 GLC 300e M274.920 4-Matic Engine ECU Unit Module A2749002900
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BMW Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7584113 Manual
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Mercedes GLC C253 X253 Pedestrian Protection Pressure Crash Sensor A2539052100
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BMW E92 Xenon Footwell Light Module Control Unit ECU FRMFA 9126314
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VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 511 9 Pins 04L907282B
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Head Unit Mercedes W212 Radio Navi CD Player For Parts Not Working A2129005212
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VW Volkswagen Touareg 7L Air Suspension Gateway Control Module Unit 7L0907553F
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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BMW E90 ECU Body Control Module H1 61356983302 6983302
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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 .