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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Part no. 8614302
BMW 1 Series F20 F21 114i N13 Engine Control Unit ECU Module DME 8614302 Manual
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Ford Transit Custom Negative Battery Terminal Cable Wiring BK2T-14303-AG
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Volkswagen Touareg 7L Onboard Supply Comfort Unit Module Unit ECU 7L6937049M
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Mercedes W207 W212 Head Unit CD Player Radio Navigation Controller A2129006417
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BMW E81 E87 E90 E91 E92 E93 Active Steering Control Unit Module 1277022065
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Mini Cooper One R55 High SPEG DC/DC M3 Fuse Distribution Box 3451925
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BMW 1 2 3 5 Series F10 F20 F22 F30 Navigation Sat Nav Head Unit High 9289212
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Mercedes Vito W639 Suspension Level Control Unit Module ECU A6394460317
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Mercedes-Benz C-Class W203 Antenna Amplifier Control Module Unit A2038701489
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Mini F56 Active Sound Design Radio Audio Amplifer Control Unit Module 9366112
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BMW E60 E61 Front Seat Occupancy Sensor Mat 6940422
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Mini Cooper R56 R57 LCI R58 R59 R60 CD Radio Audio Player Control Unit 3457433
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Mercedes W204 COMAND Navi CD Player Radio Sat Nav Head Unit A2049004714
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BMW 1 3 Series E87 E90 E91 120i 320i N46 ECU KIT DME 7552176 CAS2 + Key Manual
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BMW E84 ECU Body Control Module Junction Box PL2RR JBBFE IIIR 9267421
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Mini F54 F55 F56 F57 F60 Petrol Engine Starter Motor 7649090
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BMW E60 E61 E63 E64 CAS2 ECU Control Unit Module 6943797 61356943797
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Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Radar Unit Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor A0009058104
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BMW F20 F21 F30 116i 316i N13 Engine Control Unit ECU Module DME 8614302 Manual
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Radio Head Unit Mercedes C117 W176 W246 Navi CD Player Navigation A2469000112
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BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Set x4 Monaco Blau - A35
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Audi A5 8T 1.8 TFSI Starter Alternator Harness Wiring Cable 8K2971228G
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Mini F56 B38 1.5 136HP Petrol Engine ECU Module DME 8655106 Manual
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Audi A3 8P 2.0 TDI 170HP BMN Engine ECU Kit Key + Ignition 03G906018DN Manual
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Hands Free Bluetooth Module BMW E81 E87 E90 E91 Electronics MULF2 9204545
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BMW E60 LCI Saloon Light Control Module Unit Lear LM II E6X LWR 9180756
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Part no. 8720302
BMW 1 3 Series F20 F31 LCI Telematics Control Unit Module ATM ECE 4G 8720302
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450601
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Skoda Fabia 5J Roomster Body Comfort Module Control Unit 5J0959433A
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BMW E46 Convertible Rollover Sensor Control Unit Module 6918515
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Audi TT 8N Battery Fuse Box Power Distribution 8N0937550A
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Ford Ranger Mk3 Restraint Air Module Control Unit ECU EB3T-14B321-EG
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Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH
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Part no. 8664661
BMW F23 F30 F32 220i 320i 420i N20 184HP Engine Module ECU DME 8664661 Automatic
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Mercedes W166 W205 W212 Rear Bumper Blind Spot Radar Sensor Module A0009058802
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Part no. 7787356-1
BMW E46 E60 LCI E83 E87 M47N2 Diesel Starter Motor 7787356
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Part no. A2129008707-1
Mercedes W212 Display Screen Multifunction Dashboard Control Unit A2129008707
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Audi VW Seat Skoda Headlight Aim Range Control Unit Module ECU Xenon 3Q0907338C
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Mini R50 R52 DME Petrol Engine Control Unit ECU 7553735 Manual
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Peugeot 207 Negative Battery Terminal Cable Wiring Electrical Cable 9665205380
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Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9324781
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BMW E70 Body Control Module Unit Junction Box PL4 JBBFEIII R ECU 9286796
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Engine Wiring Mercedes W169 W245 M266 Petrol Cable Loom Harness A2661501233
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ECU Kit BMW F20 F21 114d Diesel N47N 95HP DDE 8573260 + Key + FEM + Lock Manual
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Mercedes W212 E350 CDI OM642.850 Engine Control Unit Module ECU A6429002900
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Part no. 3456586
Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3456586
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Alternator Mercedes Vito W447 Engine Generator 200A Valeo A0009068504
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Mini Cooper F55 F56 F57 F60 Starter Motor Engine 8570845
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Audi A4 B7 1.9 TDI Engine Control Unit Module ECU 03G906016JA Manual Gearbox
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Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793Q
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Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2129006012
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8574095 Key FEM Automatic
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Engine Wiring Loom Mini R50 Petrol W10 Module Harness Cables 7520321
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Mercedes-Benz C-Class W203 Airbag System Control Unit Module ECU A2038206385
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Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036
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VW Volkswagen Phaeton 3D Rear Tailgate Boot Lid Control Module Unit 3D0909610B
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual
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Mercedes GLA X156 Central Display Infotainment Sat Nav Media Screen A1669008222
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511502790
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Audi A3 8P Boot Trunk Subwoofer Rear Bass Speaker 8P3035382E
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Audi Q7 4L Door Control Module Unit ECU Rear Left Right N/O/S 8K0959795B
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BMW 3 Series E90 320si 173HP DME 7560955 Petrol N45 ECU Kit CAS2 + Key Manual
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Part no. 9131710-1
BMW E60 M-Audio CD Radio Player Head Unit Professional 9131710
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Part no. 02Z911024Q
Audi A3 8V 2.0 TDI Quattro Starter Motor Engine Diesel Bosch 02Z911024Q
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Mercedes W204 Fuse Box Rear Relay Control Unit Module SAM A2045458601
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Mercedes Sprinter W901 Central Lock Locking Control Unit Module A0165459232
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Part no. 8386674
BMW 3 5 Series E46 F30 G30 G31 Battery Cable Negative Cable Minus Cable 8386674
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ECU Mercedes W124 E280 M103.940 Engine Control Unit Automatic Jetronic
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Parktronic Module Mercedes W221 Parking Aid Sensors Control Unit A2215400901
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Mercedes W202 Central Locking Vacuum Pump Control Unit A2028001448
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Part no. 8513250-1
BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513250 CAS 4 + Key Manual
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Part no. 8635624-3
Mini One F56 B38 102HP Petrol Engine ECU Control Unit Kit DME 8635624 BDC Keys
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Part no. 7802471-1
Alternator Generator BMW E87 E90 E91 Diesel Engine Electrical Unit 150A 7802471
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Part no. 7589971-2
ECU Kit Mini One R55 R56 R57 N12 95HP DME 7589971 + CAS3 + Key Manual
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Audi A4 B7 PDC Parking Distance Sensor Control Unit Module Rear 8E0919283D
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Audi A3 8P Front Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085B
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Mercedes W211 Door Module Front Left N/S Control Unit ECU A2118701985
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Part no. 8614302-5
BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8614302 + FEM + 2 Keys
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BMW F98 Engine Starter Motor 8671505
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BMW 3 Z3 Series E36 Electrical Fuse Relay Box Storage Trim 1387614
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Mercedes Vito W447 Fuse Relay Box Module A4475405931
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Porsche Boxster 986 Air Module Control Unit ECU 99661821901
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Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635403033
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BMW F10 Light Module Control Unit ECU Lear ZGW-02 Mid Plus 9243212
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Mercedes C292 GLE 350d 4-Matic OM642.826 Engine Control Unit ECU A6429004701
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Audi A6 C8 Front Camera Driver Assistance Control Unit Module zFAS 4KE907107AR
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BMW E87 E90 Radio Business CD Player Audio Control Unit E81 E91 9200101
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Part no. 6827064
BMW E87 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R
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Part no. 7619333-1
Mini Cooper S R55 R56 LCI N18 1.6 184HP ECU Kit DME 7619333 + CAS3 + Key Manual
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Part no. A6395450601
Mercedes Vito W639 SAM Module Electric Control Unit A6395450601
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Part no. 7542310-5
Mini Cooper S R52 R53 W11 Petrol Engine ECU Kit DME 7542310 Keys EWS Manual
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BMW 3 E90 E91 LCI 325i N53 218HP ECU Engine Control Unit DME 7592080 Automatic
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Part no. 9257151-1
Telematics Module BMW F20 F30 Control Unit Bluetooth Combox ECU 9257151
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Part no. A6421507733
Mercedes ML W164 OM642 Diesel Engine Wiring Loom Harness Cable A6421507733
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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 .