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 F25 Central Gateway Module Control Unit Lear ZGW-02 8SK 9380333
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Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
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Ford Transit Mk7 Glow Plug Wiring Loom Cable Wire TDCi Diesel BK2Q6M091AD
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Fiat Doblo Engine Alternator Generator 46774430
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Audi A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063AC
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BMW E87 E90 E91 120i 320i N46 150HP ECU Kit DME 7565300 CAS3 + Key Automatic
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VW Volkswagen Golf 1K 5D Front Door Wiring Loom Harness Left N/S 1K0971121CN
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Wiring Mercedes W203 W209 W211 M272 Engine Wiring Module Harness A2721501433
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Fuel Pump Module Audi A4 B7 A6 C6 Q7 4L Sender Control Relay Unit ECU 8E0951253
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Mercedes W205 Petrol Engine Alternator Electrical Cable A2649001000
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Mercedes W221 Seat Memory Control Unit Module Front Right O/S A2218705087
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Control Unit BMW F10 F30 F31 330d 530d Diesel N57N Engine ECU DDE 8582802
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BMW E84 Footwell Light Module Control Unit ECU PL2 FRM3R 9224592
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BMW E88 Cabrio Wiring Loom Set PDC Rear Complete Harness Parking Sensor
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BMW F10 Control Unit Box F07 F11 Engine Ventilation Housing Box 7555176
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Audi A7 4G Rear Door Control Module Unit ECU Left Right N/O/S 4G8959795H
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Display Screen Peugeot Partner Expert Multifunction Dashboard Clock 9665614680
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GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Green 03447012
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Audi A3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433
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BMW E60 E63 E64 LCI Body module ECU 61356943062 6943062
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BMW G26 Reverse Rear View Camera 5A7F553
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Fuse Box Mercedes W205 W213 GLC X253 Hybrid Power Distribution Unit A2135401115
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Mercedes W221 Centre Console Telephone Keypad Control Unit Module A2218230050
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BMW X5 E39 E53 Sunroof Sliding Roof Drive Unit Motor Actuator 8377939
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Mini Cooper R56 Footwell Light Control Unit Module LOW ECU PL3 FRM II 3452093
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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3456911
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Audi A3 RS3 8Y Keyless Go Module ECU Entry Control Unit 5WA959436J
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BMW X3 X5 E53 E83 EWS III Central Locking Immobilizer Module ECU 6934529
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Mercedes W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver 761
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Mercedes V251 SAM Body Control Module Rear Unit A1649007000
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Audi A3 8P Convertible Roof Control Module ECU 8P7959255
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Skoda Octavia 5E Front Door Control Module Unit Passenger Side 5Q4959392B
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BMW E90 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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Audi A6 C6 Body Control Comfort Unit Module BCM Convenience Unit 4F0907279B
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BMW E65 E66 E67 Rear Bumper PDC Ultrasonic Sensor Titan Silver
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SAM Module Mercedes W212 Fuse Box Relay Control Unit A2129000004
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Telematics Module BMW E60 E87 E90 Bluetooth Control Unit 6982056
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Rear Module Mercedes C238 PDC Parking Assistant Parktronic Control A0009006616
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Alternator Iveco Daily II Engine Alternator Generator 140A 504057813
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Mercedes-Benz C CLK W203 C209 Sam Control Module Fuse Box Rear A2035453201
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Mercedes W169 200CDI OM640.941 140 HP Engine Module ECU Kit A6401502579 Key Lock
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BMW Z4 E85 Airbag Module Sensor B-pillar Left N/S Control Unit Air Bag 6948087
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Alternator Volkswagen Crafter 2.0 TDI Engine Alternator 120A Bosch 028903028E
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BMW 1 3 E81 E87 E90 E91 E92 LCI Radio CD Professional Control Unit 9258170
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Renault Trafic II Control Unit Sat Nav Navigation Module Unit 280380655R
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Mercedes-Benz W210 E 320 CDI Diesel Engine Control Unit Module ECU A6131530379
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VDC Module BMW X5 E70 X6 E71 Vertical Dynamic Control Unit ECU 6785396
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Mini Cooper R56 Automatic Gearbox Basic Control Unit EGS 7574294 7571340
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Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
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Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit MP3 RCD 300 1K0035186AF
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BMW 5 Series E60 E61 Cable Door Rear Left Right N/O/S Wiring Harness 6966643
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Mercedes W212 Engine Alternator Generator A0009062100
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BMW E60 E63 E87 E90 Starter Motor Diesel Engine Actuator RTX 402110362
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VW Polo 4 9N 1.4 TDI Seat Skoda Diesel Engine Alternator Generator 045903023A
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BMW Z4 E89 Convertible Top Roof Module Control Unit ECU 7206761
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BMW X5 E70 Front Seat Control Unit Module ECU Left Right N/O/S 9149834
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BMW Z4 E85 E86 Air Module ECU Control Unit Module 9118749
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Mercedes-Benz W245 Front Bumper Parking Sensor Parktronic Wiring Cable Harness
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Audi S5 8T Quattro 4.2 FSI Petrol V8 CAUA Alternator Genarator Valeo 079903015F
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Mercedes E-Class W211 Front Door Wiring Loom Harness Rubber Grommet A2118210097
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Audi A3 8P TT 8J PDC Parking Distance Control Unit Module 8E0054635D
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Part no. 8W5907468F
Audi Q5 FY Gateway Control Module Unit ECU 8W5907468F
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Mercedes W164 W251 Air Suspension Level Control Unit Module Airmatic A2515454132
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BMW 5 X5 Series E61 E61 LCI E70 Telematics Bluetooth Control Unit Module 9171347
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Airbag Module BMW F20 F21 F30 F31 F32 ECU ICM Control Unit Air Bag 6858700
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Ford Transit Mk8 2.0 Ecoblue Diesel Glow Plug Wiring Loom GK2T-6M091-AB
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Gearbox Module Mercedes W205 W213 GLC X253 Control ECU Automatic A2139006227
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Mercedes-Benz C-Class W204 Battery Negative Earth Cable Wiring A2049820202
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Mercedes ML W166 GLE C292 SAM Module Control Unit ECU A1669006120
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SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501
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Mercedes SLK R170 W202 W208 ESP Control Unit ABS ASR Module ECU A0195453132
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Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401
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Part no. 7616200
Battery Cable BMW E90 E91 E92 E93 Wiring Negative Minus Pole IBS 7616200
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Volkswagen Audi Skoda Audi 1.6 TDI Diesel Engine Starter Motor 0AM911023M
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CD Changer BMW E60 E61 E63 E64 Compact 6-disc Magazine 6938975
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BMW Mini Cooper 9 R55 R56 R57 N12 1.6 ECU Kit DME CAS 3 Key 7600020
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Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A
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Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003
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BMW E36 316i Engine Petrol M43 102HP ECU Kit DME 1432521 Automatic Gearbox
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Audi Q7 4L Body Comfort Control BCM Onboard Supply Module Unit ECU 4L0910553L
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Audi Q5 FY Battery Positive Cable Clamp Control Module Terminal 80A915459
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Mercedes W205 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2055402992
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Audi A3 8P Side Air Module Control Unit ECU 8P0959655N
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Mercedes W176 Head Unit Radio Cd Player Bluetooth Multimedia A2469009412
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BMW F10 F20 F30 Wiring Harness Motor Sensorsystem Module Petrol N20
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Vauxhall Combo D 1.3 Cdti Fiat Lancia Alternator Engine Genarator 95511910
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BMW F10 F20 F30 Reversing Camera ECU Control Unit Module 90847906
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Air Module BMW E65 E66 Sensor B-pillar Right O/S Control Unit Air 6960222
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239323
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Part no. 028903025G
Volkswagen Polo 6N Alternator Generator BOSCH 14V 70A 028903025G
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Part no. A2469067200
Fuse Box Mercedes CLA C117 X156 W176 W246 Relay Unit A2469067200
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BMW E91 Touring Body Control Module Unit Junction Box KL PL2RR JBBFE 9229885
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Tailgate Smart BMW F10 F30 F34 Mini F54 F60 Opener Control Unit Module 7491439
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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 .