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 Z4 E89 Roadster Cabrio Convertible Top Module CTM 09221135 9221135
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BMW 3 X3 Series E46 E83 Navigation Computer GPS System DVD Player Unit 6942908
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Seat Ibiza Skoda Fabia Volkswagen Polo Mk5 6R 1.2 Petrol Alternator 03D903025J
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VW Polo 9N MK4 Fabia II 1.4 TDI BMS Alternator Mount Support Bracket 038903143AG
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Audi A5 8T Starter Motor 3.0 TDI CCWA Diesel 059911021D
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Mercedes Vito W447 Negative Battery IBS Cable Wiring A4479050004
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Volkswagen VW Golf Mk7 VII Passat B8 Starter Motor Diesel Engine 02M911024B
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Skoda Octavia 5E Gateway Control Module Unit ECU 5Q0907530N
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Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803
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Volkswagen Golf Sportsvan 1.5 TSI Alternator Valeo 14V 140A 04C903021A
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Mini Cooper R59 Footwell Light Module AHL EKS ECU LEAR PL3 FRM3R 3457033
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BMW F10 Central Gateway Module ECU Control Unit LEAR ZGW-02 4SK 9291450
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Mercedes S212 Roof Antenna Estate Shark Trim Obsidian Black - 197 A2128270028
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Battery Wiring Mercedes ML W166 Battery Negative Terminal Cable Wire A1665420518
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GPS Navigation Unit BMW E38 E39 E46 X5 E53 System Computer 6920759
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Alternator Petrol 180A 7550469
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Mini Cooper R50 R52 R53 W10 W11 1.6 Petrol Bosch Engine Starter Motor 0986018830
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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BMW 3 Series E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 9131776
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SD Card Reader Mercedes W213 S213 Multimedia USB Port Socket Module A2058200526
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BMW 5 Series E60 PDC Ultrasonic Parking Sensor Silbergrau Silver Grey A08
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215408745
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BMW F10 F11 Plug Bumper Front Trim Dummy Plug Right O/S Panel 7207150
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Land Rover Freelander 2 Front Seat Module Memory Control Unit 6H5214C708AD
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Mini Cooper One R56 SPEG PL3 M2 Fuse Distribution Box 3453293
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BMW Z4 Series E89 ECU Body Control Module H3 Junction Box 61359227186 9227186
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Peugeot 5008 2.0 HDI Diesel Injector Wiring Loom Cable 968824678
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BMW X3 Series E83 2.0i Petrol N46 Engine Wiring Loom Harness Manual 3421565
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Audi S5 8T A6 C7 Engine Starter Motor 3.0 TFSI Petrol CGWC 06E911021D
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BMW 1 3 Series E81 E87 E90 LCI Professional Navigation System Car Computer CIC
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VW Volkswagen Golf Sportsvan Multimedia Sat Nav Radio Display Screen 5G6919605B
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Mercedes W176 A200 CDI OM651.930 136HP Engine Module ECU A6519009502 Automatic
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Peugeot Expert Citroen Dispatch 2.0 HDI 120HP Engine Unit ECU 9664611380 Manual
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BMW F21 Door Wiring Front Passenger Door Loom Cables Harness F22 9340997
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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Autoradio CD Player BMW E81 E82 E87 E88 E90 E91 E92 Radio Professional 9187108
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Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623
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BMW F10 F11 Rear Bumper PDC Wiring Loom Cable Harness F01 F12 9336380
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Mercedes GLC C253 Multimedia USB SD Card Reader Port Socket A2538206100
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BMW F10 F20 F30 Rear View Camera Wiring Loom Cable 9350995
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Air Module Sensor BMW Z4 E85 E64 B-Pillar Left N/S Crash Module ECU 6962887
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Audi A5 8T Remote Button Smart Key Fob Unit 8K0959754H
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BMW F22 F23 F30 F31 LCI 218i 318i B38 136HP Engine ECU DME 8662411 Manual
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Mercedes-Benz E W207 Cabrio A207 Exhaust BlueTec Control Unit Module Bracket
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SD Card Mercedes W205 C238 Garmin Map Pilot Navigation Europe A2139063605
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698206926
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Mini Cooper S R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + 2 Keys Manual
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VW Volkswagen Sharan 7N 2.0 TDI 140HP CFFB Engine ECU Kit 03L906018HJ Key Lock
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BMW 1 3 Series E81 E87N E90 E91 N47 Diesel ECU DDE Engine Control Unit 7809001
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Peugeot 5008 2.0 HDI Diesel Glow Plug Wiring Loom Cable 9688409680
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BMW 1 3 X1 SERIES E81 E87 E88 E90 E91 Parking Control Module Unit PDC 6947796
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Mercedes Vito W639 OM651.940 Diesel Engine Wiring Cable Loom Harness A6511501488
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Preheating Control BMW E46 E60 X3 E83 E90 E91 Glow Plug Unit Diesel
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Volkswagen Polo Mk5 6R 1.2 CGPB Engine Wiring Harness Cable 03E971612AN
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Volkswagen VW Golf 1K Mk5 Fuse Box Engine Compartment Relay Unit 1K0937124K
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Mini One R56 N12 1.4 95HP Petrol ECU Control Unit Kit DME 7589971 + CAS3 + Keys
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Head Unit BMW F30 F31 F32 Radio Professional CD Player Control Module 9357988
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Mercedes W204 Display Screen Radio Multimedia Navigation Sat Unit A1729016600
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Volkswagen VW Phaeton 3D Battery Relay Protection Solenoid Module 3D0919433
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Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Apec 0986024980
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Mercedes Vito W639 Automatic Gearbox EGS53 Control Unit Module ECU A0009001700
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Mercedes Vito W447 Transmission Gearbox Control Unit Module ECU A4479002707
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Part no. 9495909
Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9495909
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Part no. 9350332
Head Unit BMW F30 F31 F32 X3 F25 Navigation Sat Nav Basic Media Player 9350332
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Part no. 6936653
BMW 1 3 Series E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936653
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Part no. 8517616
Earth Ground Cable BMW F10 N47N Diesel Battery Cable Engine Wiring 8517616
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Part no. 9159034
BMW 1 Series E87 LCI CCC CD Professional Navigation System Controller 9159034
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BMW 3 Series E90 LCI ECU Body Control Module H3 Junction Box 61359253484 9253484
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Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001
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Audi A3 8P A4 A5 B8 Q5 Alternator Generator Diesel Electrical Unit 03L903023K
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BMW E46 Coupe Convertible Front Door Cable Harness Driver's Side Wiring 6903094
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BMW F20 120d F30 320d 184HP N47N Engine ECU Kit DDE 8578944 FEM Key Automatic
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Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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Door Module Mercedes CL203 W203 Front Left N/S Control Unit A2038201385
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Mercedes W221 Night Vision System Camera Module Control Unit A2218705885
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BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual
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Audi A5 8T A4 B8 Crash Impact Sensor Control Unit 8K0959651
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BMW 3 Series F80 M3 M Sport Rear Boot Lid Tailgate Spoiler Black Sapphire
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BMW 5 X5 Series E53 E60 E61 PDC Parking Ultrasonic Sensor Rear Black 6989068
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BMW 3 Series E90 E91 E92 E93 Engine Starter Motor 0 986 021 230
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Mini R57 R58 Front Left Door Module Wiring Loom Harness N/S 9157650
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Battery Cable BMW X3 F25 Red Positive Plus Pole Blow Off 9225099
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Audi A6 C7 A7 4G 2.0 TDI Starter Motor Diesel Engine Denso 059911024P
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Audi A4 B8 Door Module Front Drive Side Control Unit ECU 8K0959793E
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Mini R57 LCI R59 Convertible Airbag ECU Control Unit Module 9809353
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Mini Cooper Cabrio R52 Convertible Folding Roof Control Unit Module ECU 6952290
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Mercedes W211 Seat Memory Control Unit Module Front Right O/S A2118700726
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Part no. 6927313
Seat Module BMW E60 E61 E65 E66 Front Control Unit ECU 6927313
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Part no. 8507915
Engine Wiring BMW F20 F30 N47S1 EU5 Loom Module Harness Cable 8507915
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BMW F01 F10 F12 Sat Nav Infotainment Radio Player Head Unit CIC 9257008
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Part no. 9170453-1
BMW X5 E70 Footwell ECU Light Control Unit Module Xenon FRM II Lear 9170453
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Part no. 7811700-11
BMW E60 LCI E87 E90 120d 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 Key Manual
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Mercedes GLC X253 Relay Battery Control Cut Off Out Relay A0009825323
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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 .