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. A0275450132
Mercedes W202 W210 Automatic Gearbox EGS Control Unit Module ECU A0275450132
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key Lock
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Mercedes W447 Door Control Unit Front Right O/S A4479007806
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Mercedes W447 Door Control Module Front Left N/S A4479007706
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Mercedes Vito W447 Rain Light Sensor Control Unit Module A4479000601
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Mercedes W251 R 320 CDI 642.950 224HP Engine ECU Kit A6421506434 Keys Lock
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Mercedes W447 Comfort Control Unit Module A4479009509
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Mercedes Vito W447 Head Unit Radio Navigation GPS Nav Display A4479009005
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Mercedes R171 SLK 200K 163HP 271.944 Engine ECU Kit A2711535391 Keys Lock
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BMW Mini Cooper R56 Footwell Light Module High EKS ECU LEAR PL3 FRM3R 3457428
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Control Unit BMW F01 F10 F20 F21 F30 F87 Integrated Supply Module Unit 7591534
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Gearbox Cable BMW F45 F46 F39 B48 Automatic Transmission Wiring Harness 8642585
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Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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Roof Wiring Mercedes SLK R171 Covertible Roof Opening Wring Harness A1715404209
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Negative Battery Cable BMW E90 E91 E92 E93 Minus Pole IBS 7616200
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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003101
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BMW F20 F21 F22 F30 F31 F32 Radio Professional CD Player 9281519
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Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Unit DDE 7811151 Automatic
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511502790
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Alternator BMW F20 LCI Mini F30 F56 F60 Alternator Generator DENSO 150A
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Mercedes W177 Automatic Gearbox Control Unit Module ECU A0009012604
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Mercedes W205 GLC X253 Distronic Radar Sensor Control Unit Module A0009059013
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Mercedes W202 C208 W210 Fuse Box SAM Relay Control Unit Module A0195455632
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Mercedes Sprinter W906 Radio Player Stereo Audio Head Unit A9069001203
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Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6519009302 Key Manual
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Adblue Module BMW F10 F11 LCI X5 F15 X6 F16 Control Unit ECU SCR 7436676
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Mercedes W124 S124 Ignition Engine Control Unit Module A0155457032
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Door Module Mercedes W205 Front Right O/S Door Control Module Unit A2059000628
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Speed Sensor BMW Z3 E36 3 E46 DSC Yaw Rotational Speed Sensor 6754289
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Mercedes ML W164 W251 SAM Module Control Unit ECU A1649004600
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Relay Mercedes E200 S124 Petrol M111 Overload Protection Relay A2015403245
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Mercedes W124 S124 Central Lock Control Unit Module A1248205926
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Acceleration Sensor Mercedes S124 R129 Front Seat Belt Locking Retractor Module
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Land Rover Freelander 2 Bluetooth Module Control Unit ECU 7G9N-10D893-AA
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Ford Transit MK7 Air Module ECU Control Unit 6C1T14B056AE
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Land Rover Freelander 2 Air Module Control Unit ECU 6H52-14B321-AE
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Land Rover Freelander 2 Yaw Rate Sensor 6G9N-14B296-AB
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Battery Cable BMW F12 F13 Underfloor Positive Plus Lead Wiring Harness 9151341
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Land Rover Freelander 2 Radio Stereo CD Player Head Unit 6g9n-18c815-ta
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Starter Volkswagen Crafter Diesel 2.5 TDi Starter Motor Bosch 076911023A
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Mercedes CLK W202 W208 Battery Negative Earth Cable Wiring A2025400231
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Mercedes R129 W202 Relay Green Control Unit 12V 30A A0045450405
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Mercedes W202 Central Locking Vacuum Pump Control Unit A2028001448
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Mercedes CLK A209 Convertible Antenna Amplifier Module A2098200789
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Bracket Mount 8200527320
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Nissan Qashqai J10 Renault Koleos 2.0 dCi Engine Alternator 23100JD71A
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Mercedes W204 W212 Radio Control Function Button Knob Controller A2048709558
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Citroen Berlingo B9 1.6 HDI Diesel Engine Wiring Cable Harness 9673749980
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Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572
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Part no. A0131540002
Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002
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Part no. A6519060026-2
Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Starter A6519060026
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Part no. 8621838
BMW F20 F21 F30 F31 F32 F34 LCI Starter Motor Bosch B48 Petrol 8621838
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Alternator Ford Transit MK2 Sierra Scorpio 2.0 Engine Generator 1406067
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Engine Harness Mini F56 F60 BMW F40 F46 Sensor System Module 2 Wiring 8678972
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Mercedes W164 W251 Air Suspension Level Control Unit Module Airmatic A2515454132
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Third Stoplamp Cover BMW F30 F80 M3 Rear Stop Lamp Brake Trim 7259877
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Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036
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Engine Wiring Mercedes Vito W447 OM651 Engine Harness Cable A4474404705
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Cable BMW E39 Petrol Engine M52 Alternator Starter Cable Wire B+ 7503505
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Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712
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Part no. 7550975-1
Starter BMW E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor 7550975
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Mercedes GLC X253 GLC 220d Diesel OM651 Engine Starter Motor Bosch A6519064800
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BMW F10 F20 F30 Petrol N20 Wiring Harness Motor Sensor System 2 Module
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Mercedes GLC X253 Rear Trunk Lid Automatic Closing Lock Mechanism A2059007218
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Battery Cable BMW X5 F15 Positive Plus Pole Distribution Box Wiring SBK3 9322056
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Part no. 7493232
Led Indicator Module BMW F32 F33 F36 F80 F82 F83 Light Signal Blinker 7493232
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Part no. 8494843
Headlight Module BMW F83 M4 F33 LCi FLE2 Front Lights Right Left N/O/S 8494843
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PDC Module Citroen C4 Berlingo Peugeot Parking Assist Control 0263004204
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Mercedes W210 Fuse Box Sam Module Control Unit A0025451901
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BMW E39 Radio Business Cassette Player 6958566 8377005
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Part no. A0275455632
ESP Module Mercedes W210 Electronic Stability Program Control Unit A0275455632
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Part no. 8378766
Door Module BMW E39 Passenger Door Control Module Hella 8378766 6904242
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Mercedes W210 Petrol M112 Automatic Transmission Control Module A0245458432
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Volkswagen Golf Mk5 Seat Skoda Air Control Module Unit 1K0909605R
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Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6
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Audi A4 B7 Bluetooth Interface Phone Conectivity Control Module 8P0862335H
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Part no. 8379626
BMW 5 Series E39 Right O/S Air Box Pollen Microfilter Service Cover 8379626
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Part no. 8379627
BMW 5 Series E39 Left N/S Air Box Pollen Microfilter Service Cover 8379627
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Camera Module BMW F10 F20 F12 F87 Reversing Camera Rear View Control 6994555
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Mercedes W212 Rear Suspension Shock Left N/S Sensor Wiring Cable A2125402605
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PDC Module BMW E39 Parking Assist Distance Control Module PDC 8385232
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Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270
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Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945
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BMW E39 523i Petrol M52 Immobiliser EWS 3 Control Module Siemens 8382454
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BMW 3 5 Series E39 E46 Airbag Control Unit Module 8372521
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BMW E65 Navigation GPS DVD System Computer Unit 6959114
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BMW E39 Headlight Control Module LCM III LWR 8386207
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BMW F40 ACSM5 Control Unit Air Module ECU Control Module 5A656B7
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Mercedes W205 Center Console Ambient Lighting Light Wiring Harness A2055402324
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Alternator BMW F10 F13 F07GT F02 Petrol N63 Alternator valeo 230A 7603779
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Part no. 7614896
Ignition Harness BMW F10 F12 F07 GT Petrol N63 Engine Ignition Wiring 7614896
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BMW F10 F11 LCI 520d B47 190HP Engine ECU Kit DDE 8591073 CAS4 Key Automatic
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Part no. 7556131
Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131
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Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932
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Part no. 9241006
BMW E89 Light Led Module Footwell Unit Lear FRM3R PL2 9241006
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Part no. A4479000101
Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101
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Part no. 8586540-4
BMW X5 F15 X6 F16 30dX N57N 258HP Engine ECU Kit DDE 8586540 BDC Key Automatic
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ECU Mercedes W124 E280 M103.940 Engine Control Unit Automatic Jetronic
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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 .