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. 9196936
BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 6926371
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BMW E63 E64 Front Bumper PDC Loom Cables Wiring Set 6929148
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Audi A1 8X Positive Battery Overload Protection 8X0915459
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Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698202985
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Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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BMW 3 Series E91 LCI ECU Body Control Module Junction Box H2 9264573
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Mercedes W177 Automatic Gearbox Control Unit Module ECU A0009012604
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Mini Cooper Countryman R60 Fuse Distribution Box SPEG High 9813622
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Mercedes C207 Glow Plug Relay Unit Control Module A6429005601
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BMW E91 ECU Body Control Module H4 Electronic Box PL2 JBBFE 6983307
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Volkswagen Golf Mk5 Body Control Comfort Unit Module BCM 1K0937049N
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BMW 3 X3 X5 Series E46 E53 E83 Navigation System Video Module Unit
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2X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Mercedes ML W166 GLE C292 Relay Current Power Limiter Fuse Box A1669067701
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BMW MINI Cooper S R56 Rear Bumper PDC Cables Wiring Loom Set 9140177
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Hyundai H1 Genesis Front Impact Sensor Safety Crash Detection 95920-4H000
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BMW E34 E36 E39 E46 Starter Motor 1,4KW BOSCH 1740374
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BMW F20 F21 F31 F32 F87 Body Control Comfort Module Unit BCM 8733501
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BMW E39 E46 E60 E65 X3 E83 M54 Petrol Starter Motor 7515392
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Peugeot 308 Citroen C3 C4 1.6 HDI Diesel Engine Alternator Generator 9665617780
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BMW F20 F21 Xenon Headlight Control Unit Module Lear TMS 7316145
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BMW 1 3 Series E87 E90 E92 Navigation System Car Computer CCC 6955786
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Alarm Power Siren Horn BMW E36 E38 E39 E46 E53 E83 Alarm System Unit 8383152
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BMW F10 F20 F30 Reversing Camera ECU Control Unit Module 9302256
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Part no. A0009003706
Mercedes W207 W212 Parktronic Parking Control Unit Module A0009003706
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Part no. A0009004810
Adblue Module Mercedes W205 W222 C253 Exhaust Gas Control Unit ECU A0009004810
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Mercedes W221 Cover Fuse Box Case Trim Panel Lid A2215401682
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-BB
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Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910
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BMW 1 Series E81 E87 LCI N43 118i 143HP ECU Kit DME 7621178 CAS3 Key Automatic
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Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604
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Part no. 5Q4959593
Seat Leon Mk3 5F Door Module Control Unit Front Driver's Side Door 5Q4959593
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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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Volkswagen Golf Mk8 Rear Seat Bench Couch Occupancy Sensor Unit 5H0963554
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Part no. A9065451640
Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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Part no. A2139005528
Mercedes W205 W213 Ignition Central Lock Control Unit Module ECU A2139005528
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Part no. 3451625
BMW X3 E83 Light Control Unit Module LEAR LM II LWR 3451625
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Part no. 7501690-1
BMW 3 5 7 X5 E38 E39 E46 E53 M54 Engine Generator Alternator 120A
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BMW 5 6 X3 X5 Series E53 E60 E61 E63 E83 Cigarette Lighter Socket 6973036
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Mercedes W204 C207 Rain Sensor Light Control Unit Front Windscreen A2078203426
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Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456995
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Mini Cooper One R56 High PL3 SPEG H5 DC/DC Fuse Distribution Box 3455528
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BMW E90 ECU Body Control Module ECU H1 61359134479 9134479
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Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603C
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Mercedes W213 C238 Air Suspension Valve Block Control Unit Module A0993200258
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Mini Cooper One Clubman R55 R56 R57 R59 R60 JCW Engine Starter Motor 7552697
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Part no. A1635400841
Mercedes W163 Battery Ground Earth Strap Cable Wiring A1635400841
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Part no. A6399003000
Door Module Mercedes Vito W639 Front Right O/S Control Unit ECU A6399003000
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Part no. 3450247
BMW X3 E83 LCI Map Card Fuse Box Grouping Diagram 3450247
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Air Module Mercedes W213 C238 C253 Control Unit ECU A2139008828
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Mercedes W169 W245 Engine Starter Motor A0041518501
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Part no. 6968832
BMW E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 6968832
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Part no. 4F0906093G
Audi A4 B7 Fuel Pump Sender Control Relay Module Unit ECU 4F0906093G
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BMW X3 Series E83 Cover Positive B Battery Terminal Point Case 8371011
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Audi A6 C6 Keyless KESSY Entry Amplifier Box Module Aerial Antenna 4F0907247
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BMW E60 E61 E63 E64 DSC Hydro Braking Pump Unit Speed Sensor
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Mercedes-Benz A C W169 W204 Battery Negative Earth Cable Wiring A2045420818
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Mercedes R171 SLK200 Module Front Door Right O/S Control Module Unit A1718200626
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BMW X3 Series E83 E83N LCI Solar Sun Light Sensor 3404975
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Part no. 7794650
BMW E60 E61 525d Diesel M57N 177HP Engine Control ECU Module DDE 7794650
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Mercedes EQA H243 Relay High Voltage Performance DC 250 A Contactor A7899823000
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Mercedes SLK R172 GPS Navigation System Screen Display A1729006613
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Audi A3 8V Head Up Navigation Multimedia Screen Display Unit 8V0857273N
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Fuse Box Mercedes W211 CLS C219 Rear SAM Module Relay Control Unit A2115458601
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Part no. 9227118
BMW F07 GT On Board Central Information Display Screen Monitor 10,25" 9227118
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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. 7799470
Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470
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Part no. 9187108
BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional Autoradio CD 9187108
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Part no. 9383700
BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9383700
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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. 9381299
BMW F20 F21 F30 F31 Business Navigation Sat Nav Head Unit Player 9365833
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Part no. 9174261
BMW E60 E87 E90 Telematics Bluetooth Control Unit Module ECU 9174261
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BMW 1 3 X1 Z4 Series E81 E84 E87 E88 E89 E90 E91 E92 Radio Business CD 6975015
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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. A9065450003-1
Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003
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Mini Cooper R50 R52 R53 W10 W11 1.6 Petrol Engine Starter Motor 0986018840
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Part no. 1K0955559M
Volkswagen VW Golf Mk5 Rain Sensor Windscreen Control Unit Module 1K0955559M
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Mercedes-Benz E-Class W210 Estate Radio Aerial Antenna Amplifier A2108200789
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Part no. 8W0941823F
Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
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Part no. 9134482
BMW 1 Series E87 ECU Body Control Module Unit L2 PL2 JBBFE 9134482
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Glow Plug Relay Mercedes W213 C238 Diesel OM654 Preglow Module A6549001300
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Mercedes Sprinter B907 Ignition Control Module Keyless A9079001705
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BMW E88 Convertible Aerial Base Roof Antenna 9127687
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Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131
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Door Cable BMW E65 Loom Rear Right O/S Wiring Harness 6950349
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BMW E87 E90 E92 Seat Wiring Cable Front Right O/S Heating Loom Harness 9131643
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Radio CD Player VW Volkswagen Golf Polo Passat B6 Head Unit RCD310 5M0035186AA
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Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226
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Engine Wiring BMW F20 F30 LCI 118d 318d 120d 320d B47 Loom Harness Cable 8595284
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Part no. 9125035
BMW 3 Series E90 E90N E91N E92 E93 LCI Positive Cable Battery Lead 9125035
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Part no. 9394669
BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9394669
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Part no. 9175650
BMW 1 Series E81 NSW ECU Light Module Footwell Module PL2 FRM II 9175650
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Part no. 9803979
MINI Countryman R60 High SPEG Fuse Distribution Box H7 9803979
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Part no. A1669008512
Mercedes GLE 250 AM Tailgate Trunk Control Module Unit A1669008512
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Part no. 2T1T-14A280-CG
Ford Transit Connect 1.8 TDCi Battery Positive Cable Clamp Wiring 2T1T14A280CG
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Part no. 3450979
Mini R56 Footwell Light Module High ECU Lear PL3 FRM II 3450979
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Part no. A2229009708
Mercedes W205 Body Control Comfort Unit Module BCM Unit ECU A2229009708
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Part no. 7788680-4
Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680
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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 .