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 W221 Rear Armrest DVD Player Control Headunit A1669062300
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Mini R56 R57 R58 R60 Display Screen 9 inch Android Surround Panel H2862N-P
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Mini Cooper R55 R56 N12 1.6 120HP Engine Control Unit ECU DME 7588502 Manual
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS 3 Key 8506434
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BMW E90 E91 LCI 320d N47N 184HP ECU KIT DDE + CAS3 + Key 8512047 Manual
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Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129003908
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Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic
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BMW E81 E87 LCI N43 116i 2.0 122HP Engine ECU Kit 7595179 DME CAS3 Key Manual
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Ford Transit Custom Mk8 Radio Stereo Media Head Unit MK2T-18D804-HH
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Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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Mercedes CL C216 W221 S500 Air Pneumatic Suspension Control Module A2215407962
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Earth Ground Cable Mercedes Vito W447 Negative Battery Lead Wiring A4479050104
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9315684
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Mercedes W168 A160 102HP Engine Control ECU Kit A0275454132 + 2 Keys Automatic
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BMW 5 6 Series E60 E63 On-board Navigation Display Monitor Screen 6,5" 6957342
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BMW E46 M3 Coupe Door Wiring Loom Harness Cable Passenger's Side 6935219
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BMW E53 E60 E61 E65 E66 E83 Power Steering Speed Sensor 6777435
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9239226
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BMW F10 Footwell Light Module Control Unit ECU 9394665
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Porsche Macan 95B Audi A8 D4 Starter Motor 12V DENSO 95860411300 06M911024
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BMW E39 6-disc CD Changer without Magazine 6908948
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Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064KB
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BMW F13 Footwell Light Module Control Unit ECU FRM3 9313933
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BMW 3 Series E93 ECU Body Control Module H3 Junction Box PL2 JBBFE II 9160190
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Ford Transit Custom Mk8 Relay 5 Pin 12V 6X4T-14B192-AA
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735
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Engine Sound Generator Mercedes W177 W213 GLC C253 Front Rear Unit A2239016902
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BMW F10 Touch Detection Module Steering Wheel Control Unit HOD F45 i3 6867308
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Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Headlight Module Audi A6 C7 A7 A8 Headlamp Range Control Unit 4H4907357C
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Alternator Mercedes W212 Engine Generator 220A Valeo A0009063522
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Ford Transit Connect Engine Control Unit ECU 9TGH Module 1.8 TDCi 9T11-12A650-GH
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BMW E60 E61 E63 E65 Dynamic Drive Control Unit Module Front Suspension 6780590
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Mercedes W212 Xenon Headlight Ballast Control Unit Module Hella A2129003502
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BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 6942677
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Ford Transit Fuse Box Cover Housing Lid Trim Cap 6C1T14A076C
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU FRM3R PL3 3457389
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Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-BA
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BMW E30 E31 F01 F02 F10 F11 Top View Mirror Camera 9240274
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Mercedes R171 SLK350 Kompressor M272.963 Engine Control Unit ECU A2721533279
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Citroen Berlingo B9 1.6 HDI Diesel Engine Wiring Cable Harness 9673749980
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Alternator Mercedes W211 Alternator Generator Bosch 14V 180A A2721540102
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Radio Business BMW X3 E83 Z4 E85 E86 CD Player Head Unit 4154935
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BMW E61 E65 Suspension Air Supply Compressor Control Unit
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Audi A6 C7 Front Door Control Module Unit ECU Driver's Side 4G8959793E
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VW Volkswagen Touran 1T 1.2 TFSI CBZB Starter Motor 0AH911023A
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BMW 3 Series E90 E92 E93 M3 LCI Control Unit For Fuel Pump ECU 7842024
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Door Wiring Loom BMW E63 E64 Harness Passengers Side 6928975
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Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
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Mini One D R55 R56 LCI N47N 90HP Diesel Engine ECU Kit DDE 8516739 CAS 3 Key
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BMW G01 G02 B47D Wiring Harness Engine Recuperation System Supply Module 8477121
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Mini Cooper R56 LCI R58 N16 1.6 122HP Engine ECU Kit DME 8625068 CAS 3 + Key
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Mercedes C118 W117 Battery Cable Negative Terminal Wiring A0009053816
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Mercedes SLK R171 Parking Distance Aid Sensor Control Unit Module A1715451332
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Alternator Motor BMW F20 F21 LCI B37 Diesel Engine Alternator 180A 8626086
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698207126
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Audi A3 8V 1.6 TDI DGTE 115 HP Engine ECU Kit Ignition + Key 04L907445G Manual
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BMW 3 Series E90 ECU Body Control Module H1 61356968034 6968034
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Mercedes W203 C200 Kompressor 163HP M271.940 Engine ECU Kit A2711534279 Key Lock
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Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050
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Steering Wheel Horn Mini R50 R52 R53 Switch Left Right N/O/S 1172243
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BMW E90 E91 LCI 318d N47N 143HP ECU Kit DDE 8507202 CAS3 Key Manual
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V9 Lear 9287218
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Skoda Yeti 5L Door ECU Module Control Unit Rear Left Right N/O/S 7N0959795E
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BMW E81 Footwell ECU Light Control Module Basis PL2 FRM3R Lear 9230455
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Mercedes W205 W213 C238 Bluetooth Hermes LTE Control Unit Module A2139002210
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BMW E60 E81 E87 E90 E91 E92 E93 CAS3 Control Unit Key Reading Module 9278745
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Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420
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BMW 5 7 Series 1 E60 E65 Sunroof Sliding Roof Drive Unit Motor Actuator
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Mini R60 Xenon Headlight Adaptive Ballast Control Unit 7171587
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0005458916
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VW Volkswagen New Beetle 1.6 BFS Petrol Starter Generator Motor 02A911023L
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Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814
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Radio Head Unit Mercedes C207 W207 COMAND Navi CD Player Navigation A2129009004
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BMW E81 E87 E90 E91 Hands Free Electronics Charging MULF2 9162982
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BMW X5 F15 Rear Fuse Box Distribution Relay Module Control ECU Unit 6819651
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Skoda Octavia Fabia Mk3 VW Polo Mk6 Rain Sensor Control Unit Module 5Q0955547C
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BMW X3 F25 Central Gateway Module Control Unit Lear 9312917
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BMW 5 Series E60 E61 Airbag ECU Control Unit Gateway Module 6960381
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Mercedes C253 Body Control Module Temic A2539005906
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MINI Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Automatic
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Audi A8L 4H Voltage Converter Stabilizer Control Module Unit ECU 8K0959663C
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Mercedes R171 Front Module Door Left N/S Control Unit A1718200726
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit DME 7579142 CAS3 Key Automatic
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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BMW X5 E53 Light Check Module Control Unit ECU Lear LCM IV LWR 6961142
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Mercedes-Benz W202 C208 W208 Control Unit Bracket Holder Boot Trunk A2025458440
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Mercedes C209 200 Kompressor 271.940 163HP Engine ECU Kit A2711530691 Key Lock
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BMW 3 Series E90 E92 Antenna Amplifier Diversity TV Function 868 MHZ 6928936
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VW Volkswagen Crafter 1 Wiring Loom Harness Cable 2N0971068
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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 .