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 X5 E53 Bosch Xenon Headlight Level Control Ballast Module 1307329060
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Air Module Mercedes W211 CLS C219 SRS Control Unit ECU A2118702626
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Audi TT 8N Amplifier BOSE Premium Audio Sound System Module 8N8035223A
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Air Module BMW E60 E61 E63 Gateway High Control Unit ECU 6960383
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Door Module Mercedes C219 Front Door Left N/S Control Module A2198201926
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BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V1 REM 9293305
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Porsche Cayenne 92A Nav GPS Antenna Amplifier 7PP035504A
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Mercedes-Benz C-Class W203 CD Player Audio Stereo Radio Head Unit A2038201786
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BMW X5 E53 E60 E65 X3 E83 Adaptive Headlight ECU Control Unit Module 6934837
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Engine Wiring BMW F20 120i F30 320i 330i LCI B48 Cable Loom Harness 8636068
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Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BB
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Glow Plug Relay Unit Black 8200798585
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Mercedes W166 Tailgate Control Module Unit A1669006311
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Audi A3 8P Body Control Module Unit 8P0907063G
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Ford Transit MK7 Body Control Unit Module BCM Fuse Box CC1T14A073BD
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Seat Leon Mk3 Door Module Control Unit Front Driver's Side Door 5Q4959593E
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Mercedes-Benz C CLK W202 W208 Left N/S Parking System Warning Display Screen
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Mercedes W177 Automatic Gearbox Wiring Loom Harness Cable A2517253714
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Volkswagen Polo 6N Aerial Roof Antenna Base Antenna Unit 1J0035505A
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Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823
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Audi A5 8T Sound System Audio Amplifier Amp Unit Bang & Olufsen 8T0035223M
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Seat Ibiza 6J Central Body Comfort BCM Interface Module 6C0937089D
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BMW 3 E36 Coupe Saloon Aerial Antenna Amplifier Signal Booster Module 1387751
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Audi A3 8P CD Player Radio Stereo Head Unit 8P0035195P
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Mercedes R171 SLK200 Module Front Door Left Control Module Unit A1718200726
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Ford Transit Connect 1.6 TDCI Engine Control ECU Module Manual DV6112A650CEC
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Mercedes-Benz W906 313 CDI OM651 Diesel Engine Control Unit CRD ECU A6519000601
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BMW G11 G12 G20 G21 G30 G31 F33 F36 Generator Alternator 180A Bosch 8571357
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BMW E90 E91 E92 E93 Longitudinal Dynamic Module Cruise Control 6771182
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Mercedes SLK R171 Air Module System Control Unit ECU A1718206526
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BMW Z4 Series E85 E86 Body Control Unit Module GM5RD 12V 6931707
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Ford Focus MK2 Mondeo MK4 1.8 TDCI Glow Plug Wiring Loom Cable Wire 4M5Q6M091AB
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Mini Cooper R57 R58 R59 Microphone Hands Free Telephone 9167397
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Audi A6 C7 Multimedia Radio CD Player Head Unit 4G0035192H
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BMW X3 G01 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 8795111
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Mini Cooper R56 R57 High SPEG PL3 H4 Fuse Distribution Box 3455442
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Ford Transit Mk7 Radio CD Player Head Unit Autoradio 6000 CD 8C1T-18C815-AA
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Seat Module Mercedes C238 Front Right Seat Control Unit A2139008409
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BMW 1 X1 X2 Series F39 F40 F48 Mini Cooper One F55 F56 Earth Cable Wire 8602994
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Ford Focus Mk3 Relay Module 4-Pin Black BU5T-14B192-AA
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Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241
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Audi A5 8T Headlight Lightning Control Module LCM Unit ECU 89500248
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Mercedes ML W166 C216 W221 Auxiliary Additional Generator Battery A0019822708
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Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118702889
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Mercedes W213 Door Module Front Right O/S Control Unit A2139004409
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Ford Transit Mk8 2.2 TDCI Alternator Generator CC1T-10300-CD
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Ford Transit Custom Rear Axle ABS Wiring Loom Harness KK2T-2L508-AF
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Body Control BMW F20 F21 F30 F31 F32 Unit Module REM 9279824
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Mercedes-Benz C M Class W163 W203 ESP Yaw Rotation Rate Sensor A0025428918
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BMW E46 E64 Front Seat Module Control Unit Memory 7067801
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Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100
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Mini Cooper One R50 R52 R53 JCW Fuse Relay Electrical Box Housing 6906598
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BMW E60 E65 Petrol 530i 730i M54 Engine Control Unit DME 7527072 Automatic
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BMW E60 E90 325i 525i N52 218HP Engine ECU Kit DME 7561684 CAS2 + Key Manual
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BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9305736
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Wiring Mercedes W176 W242 W246 C117 Petrol M270 Engine Harness Loom A2701501533
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Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom 81A971104E
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CAS3 Module BMW E60 E87 E90 E91 E92 Key Reading Control Unit 9287535
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9199439
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104E
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Radio Player Mercedes W639 W906 Audio Stereo CD Head Unit Display A9068200486
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9258164
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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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Audi A6 C7 Power Lead Battery Positive Cable Wiring Harness Loom 4G0971225G
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Air Module ECU Mini F54 F55 F56 F57 F60 Crash Control Unit Module 9484304
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Telematics Module BMW F01 F07 F10 F12 Bluetooth Control Unit ECU 9228272
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Volkswagen VW Touran Door Harness Loom Cable Wiring Rear Left Right 1T0971693BM
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Renault Master II Trafic II 2.5 dCi Diesel Engine Starter Motor Valeo 8200634602
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Radio Professional BMW E81 E82 E87 E88 E90 E91 E92 E93 Autoradio CD 9231928
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BMW 1 Series E87 ECU Body Control Module PL2 JBBFE 61356955004 6955004
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BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM3R VDM 6801294
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
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Ford Transit Custom Fuse Box Cover Housing Lid Trim Cap Panel KK3T-14A075-AB
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BMW X3 E83 1.8d 2.0d N47 Engine Wiring Loom Harness Cables Set 3453809
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Audi Q3 8U Head Unit Navigation Multimedia Control Unit 8U0035193CX
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BMW E60 E90 E91 LCI 330i 530i N53 272HP ECU Kit DME 7616431 CAS3 + Key Automatic
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Peugeot 307 Citroen C4 C5 1.6 HDI Diesel Engine Starter Motor 9645100680
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Mercedes W221 Seat Memory Control Unit Module Front Right O/S A2218705087
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
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BMW X1 F48 Dashboard Monitor Display Central NAV Information Screen 6,5" 8803369
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Land Rover Range Rover Engine L322 3.0d M57 306D1 Unit Module ECU DDE 7791367
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Audi Q7 4L Navigation Sat Stereo Radio Audio Head Unit CD Player 4E0910888PX
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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 .