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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Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100
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Door Module Mercedes W205 Rear Right O/S Door Control Module A1679004811
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Hyundai H-1 2.5 CRDI Alternator Generator 373004A310
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Battery Junction Block Mercedes W176 W246 Battery Plus Pole Terminal A2469068601
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Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429
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Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit DME 7595179 CAS3 + Key Manual
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Volkswagen Touran 1T Parking Control Unit Module Sensor 1K0919283A
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Airbag Module Citroen Berlingo Peugeot Partner Air Bag Control Unit 9803916880
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Mercedes W221 Anti Theft Roof Alarm Ultrasonic Motion Sensor Unit A2218207510
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Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T-14A073-CG
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Audi Q7 4M Rear Boot Lid Tailgate Opening Module Cable Wiring Line 4M8962239
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BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329
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Audi TT 8J 2.0 TFSI CESA Petrol Engine Starter Motor 02E911023S
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Mercedes W169 W245 Aerial Roof Antenna Radio Rod A1698202675
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BMW 3 Series E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 9131776
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Mercedes SLK R171 Air Module System Control Unit ECU A1718206526
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Renault Master III Opel Movano B 2.3 DCI CDTI Alternator Generator 231001822R
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BMW X5 E70 LCI Footwell Light Control Module Unit Lear FRM3R XE 9287250
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Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
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BMW Z4 Series E85 Driver's Side Door Airbag Control Unit Module 6935920
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Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A C543294A
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BMW E60 E61 Centre Console Switch Centre DSC PDC 6944962
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Mercedes W177 Automatic Gearbox Wiring Loom Harness Cable A2517253714
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Mercedes X253 Front Bumper PDC Wiring Parking Sensor Loom Harness A2535406430
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Mercedes W168 Alternator Generator A0121544502
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Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B
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BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH
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Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 6500CY
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Mercedes-Benz M ML W163 Battery Positive Cable Wiring Connector A1635400269
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Opel Combo Corsa Display Screen Dashboard Multifunction Monitor Unit 009164455
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Unit DDE 7823973 Manual
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Ford Transit Mk7 Glow Plug Wiring Loom Cable Wire TDCi Diesel BK2Q6M091AD
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BMW F01 F02 LCI F07 GT Control Unit Module Voltage Transformer VSU400 9247159
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Mercedes-Benz C CLK W202 W208 Right O/S Parking System Warning Display Screen
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Volkswagen VW Golf VI Engine Starter Motor 1.6TDI 2.0 TDI Diesel 02Z911023N
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Audi A4 B7 Electronic Yaw Rate Sensor Module 4F0907637
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Whelen Euro-1 Vehicle Siren Amplifier Booster Module 200W 16A 01-086A664-01
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Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 8E0959651B
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Mercedes A B Class W169 W245 Airbag System Control Unit Module ECU A1698204185
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PDC Module Citroen C4 Berlingo Peugeot Parking Assist Control 0263004204
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Mercedes CLA C117 Head Unit Sat Nav Navigation Display Screen UB2305000334
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BMW E90 E91 LCI Wiring Cable Harness Gearbox Transmission Module 8507810
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BMW E82 Coupe ECU Body Control Module Junction Box L1 PL2 JBBFE II 9177978
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Audi A8L 4H Air Suspension Control Unit Module ECU 4H0907553E
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Mercedes Sprinter W907 Battery Cable Alternator Wiring Loom Harness A9075400186
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BMW 3 E36 Coupe Saloon Aerial Antenna Amplifier Signal Booster Module 1387751
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BMW G11 G12 G30 G32 G14 Starter Cable Alternator Cable Starter-Base B+ 8595355
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BMW 3 5 7 Series E30 E34 E36 E38 E46 Petrol Engine Starter Motor 2354709
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Mercedes ML W166 Head Unit Radio Player Sat Nav Tel SD Card Unit A1669009808
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BMW 1 Series E87 LCI ECU Light Module Control Unit PL2 FRM II Lear 9204525
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BMW Mini Cooper One R50 R53 Fuse Box Cover Black 1480793 61131480793
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Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640
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BMW X3 X5 Z4 E53 E83 E85 6-Disc CD Changer Multichanger With Magazine 6913389
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Mercedes W176 W204 W207 W212 W246 Fuel Pump Module Control Unit ECU A0009007306
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Audi A7 4G8 Tailgate Lift Boot Lid Control Unit Module Trunk 4G8959107N
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Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118704085
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BMW X3 E83 LCI Light Module Control Unit ECU Lights LM II LWR 3451528
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BMW E65 Battery B Engine Compartment Terminal Point Cover 8387568
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BMW E82 E88 E90 Switch Cluster Cruise Control Stalk Unit 6965279
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Tailgate Lift Module BMW G20 G30 G12 Rear Boot Trunk Lid Control ECU 5A19DB2
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Volkswagen Touareg Yaw ESP Rate Sensor Module Unit Control ECU 7H0907652
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Audi S3 8Y 2.0 TFSI DNFF Petrol Engine Sound Noise Actuator 4H0907601E
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BMW Mini Cooper Cabrio R57 Aerial Roof Antenna Base Unit 3453890
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BMW X1 F48 Mini F55 F56 Air Module Control Unit ECU 9381837
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Mercedes W204 Fuse Box Relay SAM Control Unit Module A2129005912
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Mini Cooper One R55 R56 LCI Aerial Base Roof Antenna Rod Unit 3456089
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BMW F07 F10 F11 F12 Diesel N57 Engine Wiring Injection Wiring Harness 8583575
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Mercedes-Benz C W203 Front Bumper Parking Sensor Wiring Loom Cable Harness
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Light Module BMW E90 LCI ECU LED NSW Control Unit PL2 FRM II 9204532
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Ford Transit MK7 2.4 TDCI T24DD0P Diesel Engine Control Unit ECU AC1112A650BC
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BMW F20 F21 F30 F31 118d 318d N47N Engine Control Unit ECU DDE 8579479 Manual
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Audi A3 S3 8P Engine Bay SAM Relay Fuse Box Module Control Unit ECU 1K0937124P
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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 .