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 E87 E90 Radio Business CD Player Audio Control Unit E81 E91 9200101
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Mercedes CLK W203 C209 Negative Battery Terminal Cable A2035400231
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BMW F33 F83 M4 Convertible Neck Warmer Control Unit Heater Module ECU 7427905
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BMW E60 E61 E90 E91 On-board Navigation Display Monitor Screen 6,5" 9179808
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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BMW E60 E63 E64 LCI Body Control Unit Module 9151516
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Mercedes-Benz A B W169 W245 Starter Alternator Wiring Loom Harness A1694403805
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BMW 1 Series E82 E88 Rear Bumper Wiring Loom PDC Harness 9182571
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Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107
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BMW F20 F30 LCI Diesel B37 B47 ECU DDE Engine Control Unit 8598759 Automatic
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9243913
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Renault Trafic 3 BSI BSM Body EMM-T4 L3 Control Unit Module 231A08052R
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BMW 1 Series E81 E82 E87N LCI E88 Wiring Cable Air Flap PDC Front 9150891
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BMW Z4 E89 Roadster Control Unit EMF Rear Wheel Brake Module 6794260
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Battery Cable BMW E82 E90 E91 E92 N54 Alternator Starter Base B Cable 7556846
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BMW 1 3 Series E87 E90 Hands-free Electronics Bluetooth Module MULF2 9178862
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Audi Q7 4L Radio Multimedia Receiver Control Module Unit 4E0035541S
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Battery Cable BMW X3 F25 X4 F26 Underfloor Positive Plus Lead Harness 9321002
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VDC Module BMW F20 F21 F30 F31 Rear Suspension Level Control Unit 6855189
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Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator A0051511301
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BMW Z4 Series E85 Roadster Cabrio Safety Information Module Airbag 6962767
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BMW F20 F21 F22 F30 F31 LCI Head Unit Media DAB Navigation Professional 8804457
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Audi A6 C7 Front Seat Control Module Unit Right O/S 4G8959760
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064402341
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Part no. 6987997
BMW 1 Series E87 Footwell Light Control Module Unit PL2 FRMFA Lear 6987997
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Alternator Mercedes Vito W639 Sprinter W906 14V 180A Generator Valeo A6461541102
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BMW E90 LCI Professional CD Radio Player 9246500
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BMW MINI Cooper Cabrio Convertible R52 Rear Bumper PDC Cables Wiring Loom Set
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BMW X5 E61 E65 E70 E90 Telematics ECU Control Unit GSM 6983009
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Audi A3 8V Front Door Module Control Unit Module Right O/S ECU 5Q0959592E
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Audi S5 8T Amplifier Speaker Bang & Olufsen Control Module Unit 8T0035223AN
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Citroen Berlingo Module Control Unit Brown 12V 20A 4 Pins 8200263342
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BMW X3 Series E83 Wiring Drivers Side Loom Front Door Cables Right O/S 3427743
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BMW 1 3 Series F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module
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BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9229878
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BMW E64 E85 Sensor B Pillar Air Module Unit Left N/S 6940299
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Mercedes Sprinter W906 Turn Rate Sensor Module Control Unit A0065424218
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Radio Boost CD Mini R50 R52 R53 Head Unit Audio Player 4154934
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Audi TT 8J Gateway Control Unit Module 7N0907530AL
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PDC Parking Sensor BMW F20 F21 F30 Ultrasonic Front Tiefseeblau Deep Sea Blue
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BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9230454
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BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Alternator Petrol 180A 7550469
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit ECU Manual 6C1112A650AN
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Mercedes Vito W639 Air Module System Control Unit A6394460442
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BMW X5 X6 E70 E71 Power Distribution Fuse Box Battery 9178959
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BMW 3 5 Series E60 E90 330d 530d M57N2 ECU Engine Kit DDE 7801712 CAS2 + Key
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Xenon Headlight Module BMW F22 F23 Control Unit Driver Module 7363091
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Mercedes W209 Convertible Roof Module Folding Top Control Unit ECU A2098205026
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BMW 3 Series E93 ECU Body Control Module H3 Junction Box PL2 JBBFE II 9160190
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BMW X1 Series F48 KaFAS Camera Assist Speed Limit Control 9370431
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Part no. 9253563
BMW F20 F21 Wire Cable Plug Wiring Diagnostic Socket OBD 9253563
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Mercedes W164 W204 Fuel Pump Module Control Unit ECU A2124400314
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Part no. 9294300
Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 8,8" 9294300
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Audi A4 B8 Headlight Range Module Control Unit ECU 8K0907357B
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Steering Wheel Module BMW F20 F21 F30 F31 F32 Heating Control Unit 7849393
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Mercedes-Benz C W203 Front Left Right Door Wiring Loom Harness A2035407608
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BMW X5 E70 CAS3 Key Reading Module Unit Control ECU 9278746
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Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Starter A6519060026
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Footwell Module BMW E93 Light Control LCM PL2 FRM II 9166708
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Part no. 6866454
VDC Module BMW F01 F07 F10 F11 F12 Rear Suspension Level Control Unit 6866454
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ECU Kit Mini One R55 R56 R57 N12 95HP DME 7589971 + CAS3 + Key Manual
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Mercedes Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600704
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Part no. 6974364
Air Module Sensor BMW E60 E61 E63 Left B-pillar N/S 6974364
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Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038206426
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Part no. 6983312
BMW X3 X5 Z4 E39 E46 E53 E83 E85 GPS Navigation Computer DVD 6920182
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Part no. A9065453001
Mercedes W906 Fuse Box SAM Relay Control Unit Module A9065453001
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Part no. A0345454332
Mercedes-Benz C Class W203 Automatic Gearbox Transmission Control A0345454332
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Part no. 6971353
BMW X3 E46 E83 Navigation Computer GPS System DVD Player Unit 6971353
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Part no. 6930204
BMW E60 E63 E64 E65 PDC Parking Control Module Unit ECU 6930204
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Part no. A2038201585-1
Mercedes W203 Door Module Control Unit Front Left N/S A2038201585
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Part no. 9304587
Body Control Module BMW X3 F25 ECU Junction Box JBBFE III 3 Lear 9304587
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Mercedes C207 Coupe Module Rear Window Regulator Lifter Control Unit A2079003600
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Mini Cooper R50 R53 Control Unit Module RPA Tire Puncture Warning 6801252
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Part no. 9138448
BMW E87 E90 E91 E92 CCC CD Professional Navigation System 9138448
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Mercedes W212 Front Seat Headrest Display Screen Monitor Unit A2128205404
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Part no. 9149834
BMW X5 E70 Front Seat Control Unit Module ECU Left Right N/O/S 9149834
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BMW E87 LCI E90 E91 120i 320i N43 170HP ECU Kit DME 7583225 CAS3 + Key Manual
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BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU KIT DDE 8510829 CAS3 + Key Manual
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Mini Cooper S R55 R56 N18 Ignition Injection Valve Wiring Harness 7647197
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Mini Cooper R57 R57N LCI Roof Operating Unit Light Switch 3450543
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TV Function Module BMW E65 E66 E67 Video Control Unit Tuner 6933866
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BMW 1 Series E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9159807
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BMW E87 LCI CCC CD Professional Navigation System Controller 9185532
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Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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BMW X1 F48 Differential Lock Module Rear Axle Control Unit ECU 8655341
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Mercedes-Benz W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver
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Head Unit BMW F10 F20 F30 Basis Media Navigation Headunit 9357991
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Audi A6 C6 Electric Parking Brake ECU Control Unit Module 4F0910801D
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Head Unit BMW X3 E83 Z4 E85 E86 Radio Business CD Player 6976888
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Mini Cooper R50 R53 Rear Battery Hold Down Strap Retaining Bracket 6917738
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BMW E60 E61 CCC CD Professional Navigation System Controller 6949171
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Xenon Control Unit BMW X5 E70 E90 E91 LCI Adaptive Headlight 7189311
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VW Volkswagen Golf MK6 Steering Wheel Column Control Module 1K0953549CF
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Part no. A2059005122
Seat Module Mercedes W205 W253 Memory Control Unit Driver's Side A2059005122
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BMW E63 E64 Rear Bumper PDC Cables Set Wiring Loom Harness 6929916
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Part no. 8794297
BMW F20 F21 F22 F30 F31 F32 Mini F55 F56 F57 Head Unit Basic Media DAB 8794297
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Part no. 6822602
BMW F20 F21 F30 F31 Head Unit Basic Media Navigation Headunit 6822602
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Mini Cooper R56 R57 High SPEG PL3 H4 Fuse Distribution Box 3455442
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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 .