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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Mercedes-Benz W168 M166 Engine Wiring Harness Loom Cable A1661500033
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Audi Q2 GA Head Unit Navigation Multimedia Control Unit MMI 81A035043
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Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9495909
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Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
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Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6511501879 Key Lock
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Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047
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Steering Wheel Module BMW F20 F21 F30 F31 F32 Heating Control Unit 7849393
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BMW E81 E90 E91 E60 Petrol Alternator Generator 150A 7550967
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Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 6500CY
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BMW E81 E82 X1 E84 E87 E90 E91 E92 Power Distribution Box 6971370
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Ford Transit Connect Control Unit Central Door Locking Module ECU 9T1T15K600ED
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Volkswagen Polo 6R 1.2 MPI CGPB 60HP Engine Control ECU 03E906023AL Manual
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Mercedes GLE C292 Coupe Trunk Lid Module Automatic Closing A2929007101
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Xenon Headlight Module BMW F22 F23 Control Unit Driver Module 7363091
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On-Board Screen BMW F30 F31 Central Information Display Monitor 8,8" 9281688
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Positive Cable Mercedes W906 Battery Starter Alternator Plus A9065403627
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Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007A
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BMW MINI Cooper One R50 R53 1 Wave Radio Cassette Headunit Tape Player 6921593
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Mercedes W906 Door Module Front Left Right N/O/S Control Unit ECU A9069000501
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Audi A3 8P Fusebox Body Control Comfort Module BCM Unit ECU 8P0907279F
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VW Seat Skoda Polo MK5 Diesel Engine Alternator Generator 140A 14V 03P903023D
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Audi Q3 8U 2.0 TFSI CULB 180HP Quattro Engine ECU Kit 06K907425C Ignition + Key
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BMW F20 F30 F32 120d 320d 420d N47N Engine ECU Kit DDE 8578946 FEM Key Manual
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BMW F20 F21 F22 F30 F31 F32 F33 F36 Fan Motor Relay 9207913
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Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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BMW E60 E61 E63 E64 Body Gateway Module KGM LOW
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Mini Cooper R58 Fuse Distribution Box Control Unit High PL3 SPEG H8 3457416
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Fuse Box BMW F40 Mini F55 F56 Power Distribution Junction Relay Unit 9270356
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Audi A7 S7 4G 4.0 TFSI Petrol Engine Alternator Generator 079903015P
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BMW X6 71 Amplifier HiFi Stereo System Sound 9312471
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Starter BMW E60 Starter Motor Bosch 7515391 0001108401
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9348362
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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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BMW E46 Convertible Rollover Sensor Control Unit Module 8385223
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BMW E90 M-Audio System CD Player Controller Navigation Sat Head Unit 9200447
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BMW E87 E90 N46 120i 320i 150HP Engine Unit ECU kit DME 7565300 CAS3 Key Manual
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LED Module BMW G11 G12 G20 F90 Dashboard Illumination Control Unit 6999950
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BMW F01 F02 Air Suspension Control Unit Rear Axle 6857942
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Earth Ground Cable BMW G20 G21 G30 G31 G11 Line Strap Battery Lead 6870078
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BMW 3 X3 Series E46 E83 Fuse Distribution Box 8364530
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Part no. 9133281-1
BMW E93 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Peugeot 206 Engine Alternator Generator 1638095180
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Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549F
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BMW X5 E53 E60 E65 Integrated Relay Power Supply Module 7510638
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Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9298939
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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Audi A3 8V 2.0 TDI Quattro Starter Motor Engine Diesel Bosch 02Z911024Q
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Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105
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Earth Ground Cable BMW E90 E91 E92 Negative Battery Lead Wiring 7549396
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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BMW 1 3 E87 E90 N45 116i 316i Petrol ECU Kit DME 7557809 + CAS 3 + Key Manual
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Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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BMW Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456395
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Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003
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BMW E63 E64 LCI Camera Lane Departure Warning Unit 9137725
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BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6872837
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BMW E63 E64 LCI Driver's Seat Occupancy Sensor Mat Control Unit Module 9126457
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Airbag Module BMW X1 F48 F45 F46 Air Bag Control Unit ECU 9390576
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Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087R
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key Automatic
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Mercedes W203 W639 Audio 10 CD Player Audio Stereo Radio Head Unit A2038202686
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Audi A3 S3 8Y Engine Alternator Generator Electric Unit 14V 140A 06K903026C
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Mercedes C205 Midline Sound Audio Amplifier Unit A2059000044
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BMW E90 E91 LCI N47N 320d 184HP Engine Control Unit ECU DDE 8510829 Automatic
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Honda Civic Starter Motor Actuator Unit 12V 31200-PSA-J52
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Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008
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Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD
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Central Information Display BMW F10 F11 On-Board Screen 10,25" 9247872
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BMW X3 X5 E53 E60 E61 E65 E83 Power Steering Speed Sensor 6762235
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Audi RSQ3 F3 2.5 TFSI Quattro 400HP DNWA Engine Unit ECU 07K907309F Automatic
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BMW X3 F25 Antenna Aerial Diversity Amplifier Unit 868 MHZ 9276064
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BMW E39 Radio Business Cassette Player 6958566 8377005
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BMW F20 F21 Wire Cable Plug Wiring Diagnostic Socket OBD 9253563
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Head Unit Mercedes CL203 CLC CD Player Radio Audio Telephone Unit A2039000100
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Mini Cooper Cabrio R52 Convertible Folding Roof Module ECU 6960792
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Ford Transit Starter Motor Engine 2033125
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BMW E81 E87 E90 E91 E92 E93 Active Steering Control Unit Module 1277022189
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MINI One 1.6 R50 R52 W10 90HP Engine ECU Kit DME 7545789 + EWS + Key Manual
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VW Volkswagen Golf 6 Gateway Control Unit Module ECU 1K0907530AD
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Alternator Bracket Mount 117105124R
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Audi Q7 4L Fuse Box Relay Control Unit Module 7L0937503D
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BMW E87 E90 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Automatic
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Audi TT 8J Speaker Loudspeaker Front Door Left Right N/O/S 4F0035411E
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BMW F10 F20 F30 F31 Body Module Control Unit FEM 9303546
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Mini F55 F56 F57 Battery Cable Positive Wire Lead Cable Terminal 9364729
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
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BMW E93 Xenon Footwell Light Module Control Unit ECU PL2 FRM II 9159808
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Skoda Fabia Mk2 5J Engine Alternator Generator Unit 14V 110A 06F903023D
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BMW E65 E66 Airbag ECU Control Unit Gateway Module 6967658
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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 .