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. 8595284
Engine Wiring BMW F20 F30 LCI 118d 318d 120d 320d B47 Loom Harness Cable 8595284
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Audi Q2 GA Front Parking Sensor Assist Control Module Arrow Grey Z7W 5Q0919275B
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Alternator Generator Mercedes W176 W246 Diesel Engine Bosch 175A A0009063822
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BMW 3 5 Series Mini Cooper E60 E93 R55 R56 R60 IBS Negative Battery Lead
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Mercedes R171 SLK200 Module Front Door Right O/S Control Module Unit A1718200626
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BMW E60 E61 E63 E65 X5 E70 X6 E71 PDC Parking Control Module Module 6978232
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Mercedes W212 CDI Automatic Gearbox Control Module Unit ECU A0005456916
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Audi Q5 8R 2.0 TFSI CNCD 224HP Engine Unit ECU Kit 8R2907115 Key Ignition Manual
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Starter Motor BMW E60 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Unit NSM1504
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Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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BMW E46 Passenger Front Door Wiring Loom Cable Harness 6913078 6913080
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Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822
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BMW E88 ECU Footwell Light Module Control Unit PL2 FRM II Lear 9197161
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BMW X5 X6 Series E70 E71 Transfer Box Control Unit Module ECU 7605031
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Mini Cooper Countryman R60 Fuse Distribution Box SPEG High 9813622
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Part no. 9350995
BMW F10 F20 F30 Reversing Camera Rear View Control Unit 9350995
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BMW X1 F40 F48 Mini F55 F56 F57 Engine Starter Motor 8647866
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Part no. 6927312-1
Seat Module BMW E60 E61 E65 E66 Front Seat Control Unit Module ECU 6927312
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BMW 5 7 Series E39 E38 Saloon Aerial Radio Antenna Diversity Amplifier 8378090
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BMW X1 E84 Front Bumper Loom Cable Harness Parking Sensors PDC Wiring 9191449
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Ford Transit Mk6 Alternator Engine Generator Valeo 2C1T10300BA
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Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 237101754R Manual
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Navigation System BMW X3 E83 Z4 E85 Mini R50 R52 DVD GPS Computer Unit
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BMW X5 E53 E60 E65 Integrated Relay Power Supply Module 7510638
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Mercedes W205 W213 W238 Fuse Box Cover Control Unit Holder Bracket A2135400200
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Part no. 7938196
PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 7938196
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Part no. A2115409910
Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910
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Part no. A2139008828
Air Module Mercedes W213 C238 C253 Control Unit ECU A2139008828
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Part no. A0008605903
Mercedes W204 Steering Wheel Air Module Driver's Side Black A0008605903
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Part no. 6Q0909606G
VW Volkswagen New Beetle Cabrio Side Impact Crash Air Module Sensor 6Q0909606G
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Part no. A6429005601
Mercedes C207 Glow Plug Relay Unit Control Module A6429005601
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Part no. 1K0937124K
Volkswagen VW Golf 1K Mk5 Fuse Box Engine Compartment Relay Unit 1K0937124K
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Part no. 6974021
BMW X1 E81 E87 E88 E90 E91 Parking Control Module Unit PDC 6974021
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Part no. 7823344
BMW F20 F21 F30 F31 F32 F33 Alternator Generator 150A N47N Diesel 8519890
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Part no. 7798035-2
BMW 1 3 5 Series E60 E61 E87 E90 E91 M47N2 M57N2 Starter Motor 7798035
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Part no. 7532878
BMW X5 E53 E60 E61 E63 E65 E70 Valvetronic VVT Control Unit Module 7532878
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Part no. 9159813
BMW E81 Light Module NSW Footwell Module PL2 FRM II 9159813
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Part no. A1729006903
Seat Module Mercedes W204 W212 Control Unit Front Left Right N/O/S A1729006903
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Part no. A6511530879
Mercedes W906 OM651 Glow Plug Pre Heat Relay A6511530879
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Part no. A0018209726
Mercedes-Benz C CLK Class W203 W209 Airbag Control Unit Module ECU A0018209726
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Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
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Mercedes W176 Pressure Crash Impact Sensor Control Module A1769052400
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Part no. 9241694
Wiring Harness BMW F10 F11 Front Bumper PDC Wiring Loom Cable 9241694
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BMW 3 Series E90 E90N E91N E92 E93 LCI Positive Cable Battery Lead 9125035
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BMW E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 6968832
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Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010
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Part no. A0009829508
Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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Part no. A1715451301
Mercedes R171 Fuse Box Control Unit SAM Module Relay A1715451301
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Part no. 8T0919603C
Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603C
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Part no. 7587465
IBS Cable BMW E93 Negative Battery Lead Wiring Harness Control Unit 7587465
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Part no. 7550997
Mini Cooper One R50 R52 Alternator Generator 110A Benzin 7550997 7559223
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Part no. 9464652
Mini Cooper One F57 Convertible Folding Top Control Unit Module CVM 7457434
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Part no. A2139005528
Mercedes W205 W213 Ignition Central Lock Control Unit Module ECU A2139005528
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Part no. 9363557
Mini F55 F56 Central Cover Information Instrument Radio 8,8" 9367675
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Part no. 6916097-1
BMW 7 X5 Series E53 E65 Bulb Parking Light Headlight Front Lighting Cover
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Mercedes-Benz A-Class W176 Brake ABS Pump Holder Bracket Mount A2464300210
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Part no. 8586574
BMW 1 F20 F21 LCI 116d B37 Engine Gearbox Module Wiring Cable Loom 8586574
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Mercedes W202 W210 Engine Cooling Radiator Fan Control Unit Module
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Part no. 9205479
BMW 1 Series E81 E87 LCI Positive Battery Lead Distribution Box Cable Rear
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Part no. 9134483
BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9134483
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Part no. 8371011
BMW X3 Series E83 Cover Positive B Battery Terminal Point Case 8371011
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Part no. 6945144
BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6945144
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Part no. A4479007706
Mercedes W447 Door Control Module Front Left N/S A4479007706
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Part no. 7559178-2
BMW E60 525i E90 E91 325i N52 Engine ECU Kit DME 7559178 CAS2 + Key Automatic
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Part no. 6921965
Mini Cooper One R50 R53 Radio Boost CD Player Unit Head 6921965
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Part no. CC1T-10300-CC
Alternator Ford Transit MK7 Diesel 2.2 Tdci Bosch CC1T-10300-CC
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Part no. 9803979
MINI Countryman R60 High SPEG Fuse Distribution Box H7 9803979
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Part no. 7532036
BMW Z4 E85 2.2i 2.5i 3.0i M54 Wiring Loom Harness Engine Module 7532036
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Part no. A2124403758
Mercedes W212 Front Bumper PDC Wiring Parking Sensor Loom Harness A2124403758
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Part no. 06A905409P
Audi A3 8P 1.6 MPI Ignition Wiring Loom Harness Set 06A905409P
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Part no. 9313607
BMW 3 4 Series F30 F31 F32 Front Bumper PDC Wiring Cable Loom Set 9260019
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Part no. 9293279
BMW F20 F21 F30 F31 F34 GT Rain Sensor Front Windscreen Light Unit 9293279
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Part no. 9368383-1
BMW F20 F21 F30 F31 Mid-Range Sound Speaker Stereo HiFi Harman Kardon
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Part no. A6549003300
Mercedes W177 Glow Plug Relay Preglow Module Diesel OM654 A6549009900
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Part no. 8K0907064C
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064C
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Part no. 9374506
Body Control Unit BMW F20 F21 F30 F31 F32 Module REM 9374506
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Part no. 8200900820
Renault TRAFIC 4 Pin Blue Relay Module Smart 8200900820
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Part no. 9127687
BMW E88 Convertible Aerial Base Roof Antenna 9127687
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Part no. 8R0971104CC
Audi Q5 8R Rear Bumper PDC Parking Sensor Wiring Harness Loom 8R0971104CC
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Part no. 9117532-1
BMW E60 E61 Radio Player M-ASK M-Audio System Controller CD Head Unit 9117532
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Part no. 03G903143A
VW Golf MK5 1.9 TDI BKC Engine Alternator Mount Support Bracket 03G903143A
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Part no. 3450979
Mini R56 Footwell Light Module High ECU Lear PL3 FRM II 3450979
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Mercedes SLK R172 GPS Navigation System Screen Display A1729006613
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Mercedes W176 Starter Motor 12V Bosch M270 Petrol Engine A2709060700
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Mercedes W164 Gateway Control Unit Gateway Module ECU A1645402601
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Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069
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BMW F30 F31 F32 LCI 330dX N57N Engine Gearbox Module Wiring Cable Loom 8578498
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BMW F90 M5 F92 M8 G11 G15 G20 G29 G30 G32 Fuel Pump Control Unit Module 7461741
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BMW E81 E87 E91 LCI Steering Column Switch Cluster Wiper Stalk 9123043
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Part no. 8780776
Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav GPS Unit High 8780776
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Part no. 7075943-1
BMW X5 E60 E61 E65 E70 Front Left N/S Seat Height Adjustment Drive
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Part no. A1669008512
Mercedes GLE 250 AM Tailgate Trunk Control Module Unit A1669008512
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Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
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Part no. 6964602
BMW 1 3 Series E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 6964602
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Part no. A2048207785
Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
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Part no. 7571510-1
BMW Z4 Series E85 Roadster 2.5i N52 177HP ECU Kit DME 7571510 EWS + Key Manual
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Part no. A1695400706
Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Part no. A0009003313
Adblue Module Mercedes W205 W222 W253 Exhaust Gas Control Unit ECU A0009003313
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Part no. A2215408845
Mercedes W221 Gateway Control Unit Module ECU A2215408845
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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 .