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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Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950
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Ford Transit MK7 2.2 TDCi Diesel Glow Plug Wiring Loom Cable BK2Q6M091AE
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VDC Module BMW F20 F21 F30 F31 Rear Suspension Level Control Unit 6866330
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Volkswagen Transporter T5 Body Control Comfort Unit Module BCM 7H0959433B
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Mini Cooper One R50 R52 R53 JCW Fuse Relay Electrical Box Housing 6906598
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Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Audi A4 S4 B9 A5 A5 F5 3.0 Petrol Alternator Generator 14V 150A 06E903024L
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Audi A4 B7 Bluetooth Interface Phone Conectivity Control Module 8P0862335H
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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R
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Camera Module Bracket Mercedes W213 S213 Rear Housing Left N/S A2135451540
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Mercedes W212 Battery Holder Mount Bracket E-Class A2126280041
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BMW E81 E87 E90 Hands Free Electronics Charging Bluetooth Module MULF 6950089
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Ford Transit Engine Control Unit ECU 4VFB Module 2.2 TDCi CC11-12A650-AB
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BMW X5 E70 Alternator Generator Engine Unit Valeo 220A 14V 7801124
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Audi A1 8X Multimedia MMI Radio SD Player Stereo Sat Nav Head Unit 8X0035182K
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Mini Cooper One R56 Footwell Light Module High ECU PL3 FRM II 3448901
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Ford Fiesta MK7 Display Screen Multifunction Radio Dashboard 8A6118B955BL
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Ford Transit Fuse Box Cover Housing Lid Trim Cap 6C1T14A076C
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BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9383700
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BMW F30 F31 320i N20 184HP Engine Control Unit ECU DDE 7649131 Manual
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401830
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Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910
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BMW E87 LCI Light Module NSW LCM Footwell Module PL2 FRM II 9166707
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Audi A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181C
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527
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Seat Leon FR 5F Dashboard Multimedia DIsplay Sat Nav Screen 5F0919606
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Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator 110A 03C903023G
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Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698202675
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PDC Module BMW F40 G20 G21 Parking Assistant Control Unit Module ECU 9873545
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Mercedes S204 Fuse Box Terminal Connection Unit A2045450369
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BMW E63 Light Control Unit Module LCM LM II E6X LWR 9203081
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Mini R50 R53 Radio Boost CD Player Head Unit Autoradio Player 4154934
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Alternator Generator BMW F07 F10 F11 FN57N N57Z Diesel Engine Valeo 8570673
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BMW X3 X5 Series E53 E83 PDC Parking Distance Control Unit Active Module 6921414
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Peugeot 207 Display Screen Dashboard Multifunction Monitor Unit 966448398000
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497
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SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701
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Battery Cover Mercedes W204 W207 Trim Lid Panel A2048982614
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Radar Unit Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor A0009058104
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VW Volkswagen Touran TDI Diesel Engine Control Unit ECU 03G906021MP
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BMW 7 Series E65 E66 E67 Antenna Amplifier Diversity 6933666
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BMW E60 E61 CIC Professional Navigation System Controller Head Unit 9214925
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BMW X5 E53 3.0d M57 Alternator Starter Cable Wiring Base B+ 7786861
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Crash Impact Sensor Mercedes C118 W177 W247 Front Acceleration Unit A1679052401
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VW Volkswagen Crafter 2.0 TDI CKTB 109HP Engine ECU Kit 03L907309 Manual Gearbox
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Headlight Module BMW F36 Headlamp Control Unit FLE2 MAX 7429125
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BMW 3 E91 ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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BMW E60 E61N LCI E63 M5 M6 Control Unit For Ionic Current 7834713
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BMW F10 LCI Central Looking Control Module Unit ECU 9313996
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Wiring Mercedes A209 Rear Trunk Lid Wiring Harness A2094400705
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Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 4E0955559C
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Battery Cable Mercedes W169 W211 Negative Lead Wiring Pole Harness A1665420318
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Part no. 8513184-1
BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8513184 Key CAS4
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PDC Module BMW E38 Parking Assist Distance Control Module Unit ECU PDC 8372271
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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Ford Transit Connect Engine Control Unit ECU 9TGH Module 1.8 TDCi 9T11-12A650-GH
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Vauxhall Opel Relay 4-Pin Tyco Unit Yellow 90226846
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Peugeot 207 1.6 HDI 90HP DV6-ATED4 Engine Control Unit ECU 9663755480 Manual
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Renault Trafic II Control Unit Body Control Module BCM ECU P8200943317
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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BMW X5 E53 Basic Body Control Unit Module GM3 6960249
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BMW E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9153778
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BMW Mini 1 R50 R53 Rear PDC Ultrasonic Parking Sensor Pure Silver Metallic 900
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Negative Battery IBS Cable BMW X5 F15 M F85 X6 F16 M F86 Terminal Wiring 6819309
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BMW 1 3 X1 E81 E82 E84 E87 E90 E91 E92 2 Radio Business CD Audio Player 9177209
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Mini Cooper D R55 R56 Diesel W16 109HP ECU Kit DDE 7823934 CAS3 Key Automatic
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BMW F01 F07 F10 F12 HSR Active Steering Module Rear Axle Control Unit 6796393
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Mercedes W906 313 CDI OM651.955 129HP Engine ECU Kit A6519002600 Key Lock Manual
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BMW 5 7 Series E39 E38 Saloon Aerial Radio Antenna Diversity Amplifier 8378090
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Audi A4 B8 2.0 TFSI Petrol Engine Starter Motor 06H911021
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BMW E90 Max Brose Footwell Light Module Control Unit ECU 9340339
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Fuse Box Mercedes W169 W245 Sam Control Module Unit ECU A1699010100
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Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6
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Mercedes W124 S124 Central Lock Control Unit Module A1248205926
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Mercedes W447 Door Control Module Front Left N/S A4479007706
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Air Bag Module BMW E65 E66 Control Unit ECU Gateway Airbag Lear 6960943
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Audi A4 B8 A5 8T Q5 8R Audio Amplifier Sound Module Control Unit 8R0035223H
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BMW X3 M F97 X4 M F98 S58 Actuator Drive Exhaust Flap Motor 8746829
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BMW 1 3 Series E87 E90 E91 118d 318d M47N2 Engine ECU KIT DDE 7798179 CAS2 + Key
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Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Module Control Unit ECU 6998485
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BMW E87 LCI E90 E91 120i 320i N43 170HP ECU Kit DME 7583225 CAS3 + Key Manual
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Engine Module Wiring BMW F07 GT F10 F11 Diesel N57N Injectors Harness 7823755
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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 .