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. 5N0971228F
Audi Q3 8U Battery Positive Terminal Cable Plus Pole Wiring Harness 5N0971228F
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Audi A3 RS3 8Y Gateway Control Unit Module ECU GW2020 High 5WA907530Q
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Mercedes W169 W211 6 Disc CD Changer Player Glove Box A2118275542
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Hands Free Control BMW E81 E87 E90 Electronics Charging Module MULF 6965406
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Mercedes W207 W212 Parktronic Parking Control Unit Module A0009003706
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VW Volkswagen Sharan 7N Rear Left Right Door ECU Module Control Unit 7N0959794G
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Positive Cable BMW Z4 E89 Convertible Battery Plus Pole Power Red 9249103
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Mercedes W204 Front Seat Air Module Wiring Cable Front Right A2045408735
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Mercedes W211 W219 Radio CD Player COMAND Sat Navigation Head Unit A2118203297
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Mercedes W176 W246 USB Interface Multimedia Adapter Connector A1728201700
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BMW Mini Cooper One R50 R53 Fuse Box Cover Black 1480793 61131480793
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BMW E60 Body Control Module ECU Control Unit KBM Basis 6978713
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Audi A5 8T A4 B8 8K BCM Body Control Unit Module Power Supply 8K0907063B
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Mercedes ML W164 Fuse Box Relay Control Unit Module A1645403272
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9199439
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BMW E87 E90 E91 E92 CCC CD Professional Navigation System 9138448
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Mercedes W176 Head Unit Radio Cd Player Bluetooth Multimedia A2469009412
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BMW 3 5 E34 E36 1 Windscreen Wiper Wash Wi-Wa Control Unit Module ECU 8366381
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BMW E60 E61 Rear PDC Parking Sensor Mysticblau Mystic Blau Blue 7115654
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Mercedes Vito W639 651.940 116 CDI 163HP Engine ECU Kit A6511501879 Lock + Key
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BMW F30 Front Light Lamp Adaptive Xenon Control Unit Module LEAR 7316142
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MINI Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Automatic
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BMW E88 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240524
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Audi TT 8J Parking Distance Sensor Control Unit Module Rear 8P0919475F
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Radio Professional BMW E81 E87 E90 E91 LCI Autoradio CD Bluetooth 9289115
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover Mount 1K0915333H
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BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9259730
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9144776
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BMW E87 E90 LCI Car Radio Professional CD Radio Head Unit Bluetooth 9246502
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BMW E60 E61 E63 E65 E83 Alternator Generator VALEO 170A 7797521
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Mini Cabrio R57 Roof Operating Unit Light Switch Panel 3450545
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BMW E60 E87 E90 LCI 120d 320d 520d N47 Engine ECU Kit DDE 7807530 CAS 3 + 2 Keys
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BMW F22 F32 F36 Body Control Comfort Module Unit 8707676
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Part no. 03G906021KH-1
Volkswagen Golf Mk5 1.9 TDI 105HP BXE Engine ECU Kit 03G906021KH Ignition + Key
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Part no. 8R0919604A-1
Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604A
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Part no. 7640004-1
Mini Cooper R55 R56 Petrol N12 1.6 ECU Kit DME CAS3 + Key 7640004 Manual
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Part no. 7604782
Mini R55 R56 LCI R60 Alternator Generator Bosch 150A Petrol 7604782
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Part no. 6934529-1
BMW X3 X5 E53 E83 EWS III Central Locking Immobilizer Module ECU 6934529
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Part no. 9897880-5
Mini Cooper S F55 F56 B48C 192HP Petrol Engine ECU Kit 9897880 BDC + Key
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65126943437 6943437
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Manual
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BMW F20 F21 F30 F31 Radio Player CD DAB Head Unit Audio Player 9335347
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Mercedes W169 SAM Control Module Fuse Box Unit A1695405645
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Mercedes-Benz W210 Rear Left Right Door Interior Handle Pull Cable A2107600204
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Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601
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Part no. 9249083
BMW E91 LCI Footwell Light Control Module LCM LED Basis 9249083
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Land Rover Freelander TD4 Starter Motor Engine Actuator Diesel NAD101500
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BMW F01 F02 LCI Cable Loom Door Driver's Side Wiring Harness 9262859
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Part no. 5Q0937084CP
Audi S3 8V Module BCM Body Control Unit Module ECU 5Q0937084CP
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Part no. 2687921
BMW 5 X3 Series E39 E60 E61 E83 PDC Ultrasonic Parking Sensor Black 4687921
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BMW 1 Series E82 E88 Rear Bumper Wiring Loom PDC Harness 9182571
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Part no. 9803651
MINI Countryman R60 Holder Amplifier Bracket Holder Mount Hi-Fi Unit 9803651
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Distance Radar Module Mercedes W177 W205 W253 Front Distronic Unit A0009053011
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Part no. 4M0959107B
Audi A4 B9 Boot Tailgate Control Module Unit 4M0959107B
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Part no. 9204526-1
BMW E93 Xenon Footwell Light Module Control Unit ECU PL2 FRM II 9204526
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Part no. 6906621-1
BMW E87 E90 E91 E92 E93 Fuse Box Power Distribution Front 6906621
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VW Volkswagen Golf MK5 Steering Wheel Column Control Module Unit 1K0953549F
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BMW 1 3 5 Series E60 E61 E87 E90 E91 M47N2 M57N2 Starter Motor 7798035
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Part no. 9243922
BMW E81 E87 E90 E91 LCI Professional CD Radio With Bluetooth 9243922
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Part no. 7520019-1
Mini Cooper One R50 Petrol W10 W11 Engine Control Unit DME 7520019 Manual
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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BMW X5 Series E70 Individual Audio System Amplifier Top-hifi Lear PL5 9166075
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Radio Player Mercedes W204 COMAND Navi CD Head Unit A2048700196
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Part no. 3453739
Mini R56 High SPEG DC/DC Fuse Distribution Box H3 3453739
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Part no. 7599881-2
BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic
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Part no. 8514831
Engine Wiring BMW F30 F31 F32 F36 LCI 330d 430d N57N Loom Harness Cable 8514831
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Part no. 9128184
BMW E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 9128184
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Part no. 9484301
Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9367835
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Part no. 9110894
BMW E81 E87 E91 Steering Switch Cluster Cruise Control Stalk 9110894
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Part no. A2118704789
Radio Head Unit Mercedes C219 W211 CD Player Audio Navi A2118704789
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Part no. A6399002900
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399002900
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Mercedes W169 W245 Rain Light Sensor Control Unit Module A1718203726
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS 3 Key 8506434
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Part no. 7576921
Mini Cooper R55 R56 R57 Mitsubishi Engine Alternator Generator Petrol 7576921
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Part no. 7579142-7
BMW E87 LCI E90 118i 318i Petrol ECU Engine Control Kit N43 DME 7579142 CAS3 Key
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Alternator Mercedes Vito W639 Sprinter W906 Generator 14V 120A Bosch A0141542702
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Part no. 81A955559A
Volkswagen Audi Skoda Windscreen Rain Sensor Control Unit 81A955559A
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Mercedes-Benz E W207 Cabrio A207 Auxilliary Battery Bracket A2075452540
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Volkswagen Touran 1T Central Gateway Module Control Unit Lear 1K0907530F
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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6985748
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Audi A3 RS3 8Y Keyless Go Module ECU Entry Control Unit 5WA959436J
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Audi S3 8V 2.0 TFSI 300HP DNUE Quattro Engine Module ECU 06K907425J Automatic
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Mini Cooper R56 LCI R60 N16 122HP Engine Control Unit ECU DME 8600124 Manual
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BMW X5 E70 X6 E71 Negative Battery Terminal Cable 9215954 61129215954
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Mercedes W221 Safety Module Air Bag SRS Control Unit ECU A2218708292
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BMW X5 E53 3.0d M57N Wiring Loom Harness Engine Automatic Gearbox
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Battery Box Bracket Mercedes W205 W213 W238 Trim Holder Right O/S A2056200018
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Part no. 9226347
BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9226347
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Part no. 3412531
BMW X3 E83 Light Lamp Switch Wiring Wire Cable Plug 3405795
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Part no. A2079012200
Rain Sensor Mercedes W204 W212 Light Solar Condensation Control Unit A2079012200
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Part no. A6461541102-2
Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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Part no. 9640825280
Starter Motor Citroen Berlingo Peugeot Partner Engine Diesel 1.6 HDI 9640825280
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Part no. 9186170
BMW 5 6 Series E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9186170
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Part no. 7600020-10
Mini Cooper R55 R56 N12 DME Petrol Engine Control Unit ECU 7600020 Automatic
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Part no. 9229240
Radio Business BMW E81 E87 E90 LCI CD Player 9229240
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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 .