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 X3 Series E83 Boardmonitor Central Information Display 6,5" Screen 3415007
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Head Unit Mercedes ML W166 Radio Player Sat Nav Tel SD Card Unit A1669006505
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Seat Ibiza Mk5 Air Module Control Unit 5QF959655BN
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BMW i3 I01 LCI Rex 94Ah Hybrid ECU Engine Control Unit RDME 8489402 Automatic
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BMW F20 125d F30 325d N47S1 218HP Engine Unit ECU Kit DDE 8582521 Key FEM Manual
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Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
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Peugeot 307 Radio Stereo CD Player Head Unit 96545978XT01
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Mercedes W205 Battery Terminal Cable Wiring Harness Cabling A2055406316
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BMW F40 Radio Player Head Unit Navigation Sat Nav Alpine 5A0B4E8
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Audi A6 C7 MMI Multimedia Sat Nav Navigation Control Head Unit 4G1035192F
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BMW X3 F25 35d N57Z 313HP Engine ECU Kit DDE CAS4 + Key 8573574 Automatic
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Mini Cooper R50 R53 Control Unit Module RPA Tire Puncture Warning 6801252
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Ford Transit Mk7 Alarm Anti Theft System Control Module Unit 6C1T15K607AD
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BMW 5 Series E60 M5 S85 Underfloor Positive Plus Pole Battery Cable 7835177
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Volkswagen Golf Mk7 VII Tailgate Boot Trunk Cable Wiring Loom 5G2971147AF
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Central Gateway BMW F01 F06 F07 F10 F11 F12 F13 Module ECU Control Unit 9372744
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BMW F10 F11 F30 F32 F33 Side Surround View Camera Control Unit Module 9259358
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Porsche Macan 95B PDC Parking Sensor Control Module Unit 95B919294C
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 + CAS3 + 2 Keys Manual
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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
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BMW E90 E91 E92 330d M57N2 231HP Engine Control Unit ECU DDE 7809944 Manual
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Mini Cooper One R61 Footwell Light Module High EKS ECU SZT PL3 FRM3R 9813878
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Audi S5 8T Headlight Lamp Control Module LCM Unit ECU 8H0907357C
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BMW 3 Series E91 Max Brose Footwell Light Module Control Unit ECU 9286887
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Air Module Mercedes W177 W247 SRS System Control Unit ECU A1779009515
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BMW i3 i01 Battery Cell Module High Voltage Accumulator 8647912
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BMW F07 Gran Tourismo Headlight Footwell Light Control Module FRMIII 9274276
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Mercedes W163 W203 W208 Lateral Acceleration Speed Sensor ESP Sensor A1635420618
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BMW X3 G01 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 8795109
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Mercedes W221 Seat Memory Control Unit Module Front Right O/S A2218705087
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Audi VW Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set IMI-1000
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Ford Transit Connect Mk2 II Radio Head Unit DT1T18D815KB
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BMW F15 Kafas Camera Lane Assist Module Control Unit ECU 9346273
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BMW X5 X6 E70 E71 CCC CD Professional Navigation System Controller 9159047
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Ford Transit Custom Data Link Obd Port Module JK2T-14F642-AC
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Ford Transit Custom Body Control Module BCM Control Unit ECU JK2T-15604-FAE
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Mercedes W202 W210 SLK R170 R129 Steering Wheel Slip Squib Ring A1704600149
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Keyless Go Module Mercedes C118 W177 W247 ECU Entry Control Unit A1679009523
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Mercedes W164 Tailgate Module Power Trunk Lid Control Unit ECU A1648204926
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VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A
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Volkswagen Golf Mk5 Body Control Comfort Unit Module BCM 1K0937049N
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Mercedes C219 CLS 500 273.960 388HP Engine Module ECU Kit Key Lock A2731535179
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VW Golf Mk5 Door Harness Loom Cable Wiring Front Driver's Door 1K4971120G
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BMW F20 F30 F32 Earth Ground Cable Negative Battery Lead Wiring 7638005
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VW Volkswagen New Beetle 1.6 Petrol BFS Engine Control Unit ECU 06A906033DP
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Mercedes W205 Electrical Wiring Harness Brake Wear Indicator Set A2054407436
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Chrysler Grand Voyager 2.8CRD Diesel 163HP Engine Unit ECU P04727770AC Automatic
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Mini Cooper One R52 Cabrio Rear Loudspeaker Harman Kardon 6930201
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BMW E88 BCM Body Control Module Unit PL2RR JBBFE IIIR H3 Junction Box 9227186
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Audi Q5 8R Reversing Camera ECU Control Unit Module 8R0907441A
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BMW E60 E87 LCI E90 120i 320i 520i N43 Engine ECU KIT DME 7583225 CAS3 + Key
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Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2046801231
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Mini R55 R56 Manual Transmission Gearbox Gearshift Actuator Unit GS6-55BG
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Audi A5 F5 Front Door Wiring Harness Cable Driver's Side 8W6971035R
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Body Control Module Mercedes C118 W177 W247 BCM V2 Unit ECU BA2479001217
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BMW G30 Wiring Harness Loom Cable Door Front Right O/S 5A085C8
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Voice Control Module Mercedes W221 Linguatronic Input System Dutch A2218703587
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Mercedes W204 COMAND Navi CD Player Radio Sat Nav Head Unit A2049060101
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VARTA Accumulator Battery 80Ah 800A 12V Silver Dynamic AGM F21
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Radio Head Unit Mercedes W207 W212 COMAND Navi CD Player Navigation A2129007126
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Mercedes C209 CLK200 M271.955 184HP Engine ECU Kit Ignition A2711535491 Lock Key
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BMW F10 M5 F12 M6 Ignition Engine Wiring Harness Ignition Module Cyl.5-8 7843326
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Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
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Roof Antenna Mercedes W204 W212 Shark Aerial Polar White - 149 A2079058802
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Ford Transit Mk7 Bluetooth Voice Module Unit Control ECU 8M5T19G488AR
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Porsche Cayenne 92A Front Door Control Module Unit Passenger Side 4H0959792M
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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 .