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 3 Z4 Series E46 E89 Mini R50 R52 Parking Control Module Unit PDC 6985501
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Mercedes W204 Fuse Box Relay Control Unit SAM Module A2049000600
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Mini R50 Battery Cable Positive Plus Pole Wiring W17 Diesel 6942505
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Radio Player BMW F20 F21 F22 F30 F31 CD Bluetooth Head Unit Control 9310461
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BMW X5 X6 E70 E71 Dashboard Navi Monitor Sat Nav System Screen 8,8" 9166782
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BMW F40 Telematics Control Module Unit TCU 5A872D1
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Renault Master III Contact Conector Male Sliding Doors 252160006R
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BMW E34 E36 E39 E46 Starter Motor 1,4KW BOSCH 1740374
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Mercedes W169 W245 Airbag System Control Unit Module ECU A1698206626
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Ford Transit Connect Mk2 Diesel Starter Motor 8V21-11000-AE
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Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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Ford Transit MK8 Radio Head Unit Control Panel BK3T-18D815-BG
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BMW E61 E63 X5 E70 Telematics Bluetooth Control Unit Module 9138179
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BMW E46 Led Indicator Side Light Signal 7165845
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Audi A6 C6 Parking Control Unit ECU Module Sensor PDC 4L0919283B
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Fuel Pump Module BMW F10 M5 F80 M3 Fuel Pump Control Unit 7398495
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Mercedes W163 Battery Ground Earth Strap Cable Wiring A1635400841
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Renault Master III Opel Movano B 2.3 DCI CDTI Alternator Generator 231001822R
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Front Fuse Box Mercedes W204 C207 Relay Control Unit SAM Module A2129000206
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Headlight Module BMW F07 F10 LEAR TMS Headlamp Control Unit Module 7258278
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Audi A8 4E S8 D3 Comfort Unit Control Module 4E0907289E
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Mercedes S211 Rear Axle Self Levelling Device Cable A2115405332
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BMW i3 I01 High Voltage Energy Storage Unit Wiring Cable Wire 6809274
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BMW E46 Inclination Indicator Alarm Tilt Sensor Control Module 8386932
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Citroen Berlingo B9 1.6 HDI Diesel Engine Wiring Cable Harness 9673749980
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Mercedes W169 W245 A150 B150 M266.920 95HP Engine ECU Kit A2661530391 Key Lock
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Land Rover Freelander 2 Radio CD Player Stereo Audio Head Unit 6H5218845AC
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 + CAS3 + Key Manual
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BMW G20 Starter Wiring Battery Alternator Cable Harness Loom 8483814
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Mercedes ML W164 Cable Loom Wiring Parking Sensors Rear Bumper A1645402405
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VW Golf 6 2.0 TDI Diesel CBD Engine Control Unit ECU Manual 03L906022LF
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BMW F20 118d F30 318d 143HP N47N Engine ECU Kit DDE 8576341 + Key + FEM Manual
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Xenon Control Unit BMW X5 E70 E90 E91 LCI Adaptive Headlight 7189311
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Mercedes W176 Front Crash Impact Airbag Sensor Pressure Sensor Unit A1769051000
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Audi RS3 8V Potential Power Distribution Junction Box Jump Point 1K0937517
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Audi A3 8V 1.6 TDI CRKB 110HP Engine ECU Kit Ignition + Key 04L907309E Manual
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BMW X5 E70 3.0d M57N2 235HP Engine ECU Kit DDE 7805585 + CAS3 + Key Automatic
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Mercedes W639 OM651.940 113 CDI 136HP Engine Module ECU A6511501879 Automatic
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BMW X3 F25 20dX Diesel B47 190HP Engine Module ECU Kit DDE 8598806 Key CAS4
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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Audi A3 8V 2.0 TDI Engine Starter Motor Bosch 02E911024A
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Mercedes W213 PDC Parking Sensor Wiring Loom Cable Rear Bumper A2135406303
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908
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BMW F20 F45 F46 Kafas Camera Control Module Unit ECU 9384988
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BMW F30 F36 Telematics Bluetooth Control Unit Module ECU 2622593
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BMW E81 E87 E90 E91 E92 Parking Control Module Unit PDC 6982397
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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Mercedes-Benz C E Class W202 W203 W210 Windscreen Rain Light Sensor A2108205710
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BMW 7 Series E65 E66 Antenna Amplifier Diversity Unit Module 6941747
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BMW X6 F16 Bumper PDC Wiring Loom Parking Sensor Rear Cable Harness 9367702
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BMW X1 F40 F48 Mini F55 F56 F57 Engine Starter Motor 8647866
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239323
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VW Golf MK6 Body Control Comfort Unit Module BCM 1K0937085
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BMW Z4 E85 Body Control Unit Module GM5STAR12 LOW 6963038
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Audi Q3 8U A1 8X BCM Body Control Unit Module ECU 8X0907063N
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BMW E65 E66 E67 Diversity Antenna Tuner Amplifier 9131151
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Skoda Octavia 3 5E Front Bumper Wiring Harness Loom 5E0971095CN
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Audi Q5 8R Air Module SRS System Control Sensor ECU Unit 8R0959655E
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Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943
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Navigation Head Unit BMW F10 F11 F31 Harman Sat Nav Unit 9290358
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Mini Cooper R56 Footwell Light Module ECU LOW EKS Lear PL3 FRM II 3452678
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Mercedes-Benz C E W203 W211 Parking Sensor Wiring Loom Cable Harness Front PDC
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Mini One R56 LCI N16 1.6 98HP Engine Control Unit Module ECU DME 8617050 Manual
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BMW Mini Cooper S R52 R53 Gearbox Basic Control Unit EGS 7524695
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Radio BMW E81 E87 E90 E91 E92 LCI CD Professional DAB 9246503
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU FRM3R PL3 3457389
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Mercedes Sprinter W907 W910 Front Door Module Control Unit Left N/S A1679008405
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Renault Trafic III Control Unit Module ECU Cover Box Housing 237060001R
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BMW E60 525i M54 192HP ECU Engine Control Unit Module DME 7533651 Automatic
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Ford Transit Engine Starter Motor Actuator Starter CC1T14000AB
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BMW 3 Series E90 E91 E92 325i N52N 218HP ECU Kit DME CAS3 Key 7567362 Manual
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BMW X3 E83 LCI 2.0d N47 177HP Diesel ECU Kit DDE 7811999 + EWS4 + Key Manual
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Audi Q3 8U Parking Brake Handbrake Module Control Unit 3AA907801H
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Audi A1 8X Battery Terminal Fuse Socket Retainer 6C0915343A
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Audi A8L 4H Air Suspension Control Unit Module ECU 4H0907553E
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945
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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 .