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 F20 M135i F30 335i N55 326HP Engine Control Unit ECU DME 7540686 Automatic
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Air Module BMW X3 F25 F10 F11 F12 F13 ECU Control ECU Unit 9319492
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9263948
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Module BMW E82 Junction Box Body Comfort Control Unit 9286780
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Mercedes Citan W415 109 CDI Fuse Box Module Unit 284B63788R
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Ford Fiesta Mk7 MMI Radio Stereo CD Player Display Screen F1BT-18B955-GA
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Mercedes W204 C207 Rain Sensor Light Control Unit Front Windscreen A2078203426
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BMW Z4 E85 3.0i M54 231HP Engine Control Unit Module ECU DME 7541335 Manual
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Audi Q7 4L PDC Parking Distance Sensor Control Module Unit ECU 4L0919283E
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Skoda Octavia 5E Front Lamp Headlight Range Control Module Unit ECU 7P6907357A
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Seat Module BMW F20 F30 F32 F33 X1 F48 X5 F15 Front Control Unit ECU 9459681
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Amplifier BMW F30 F31 F32 F33 F34 F36 Active Sound Design Audio Module 2448166
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65126939664 6939664
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Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7610011 Manual
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BMW E81 E88 E90 N43 118i 318i 143HP Engine Control ECU DME 7621178 Automatic
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Head Unit Mercedes C207 W212 High Line Radio Sat Nav DVD Bluetooth A2129006709
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Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
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BMW F10 Touch Detection Module Steering Wheel Control Unit HOD F45 i3 6867308
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907064EC
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Camera Control Module BMW F30 F32 F82 Top Rear View Unit 6994554
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Mini Cooper S R56 N14 1.6 174HP ECU DME Kit CAS 3 Key 7610009 Manual
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0005458916
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Mercedes W207 A207 SAM Control Unit Module Fuse Box Rear A2129004222
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Volkswagen VW Touareg 7L Relay Unit Servotronic Module 9 Pins 7L6907160C
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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Audi A4 B8 Seat Exeo Servotronic Relay Control Unit 9 Pin 8E0907307F
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Mercedes W202 W210 Automatic Gearbox EGS Control Unit Module ECU A0275450132
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BMW 7 Series E65 E66 E67 Diversity Antenna Tuner Amplifier
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Fuse Box Mercedes W906 Front Relay Control Unit Electric Module A9065450401
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BMW F33 Driver Side Seat Wiring Loom Electric Harness 9352158
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Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1698205189
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Audi A1 8X Headlight LED Module Daytime Light Control Unit 8X0998475
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Audi A6 C6 2.0 TFSI BPJ 170HP Engine ECU Kit 4F2910115B Ignition + Key Manual
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Mercedes ML W164 C209 W211 C219 AMG Fuel Pump Control Module A0355400145
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Audi A4 B8 Petrol Engine Starter Motor Actuator 1.8 2.0 TFSI 06H911021D
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BMW X3 E83 LCI 1.8sd 2.0sd N47 177HP Engine Control Unit ECU DDE 7809999 Manual
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BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU DDE 8513184 Manual
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BMW E46 E60 E61 E65 E83 E53 M57N Starter Motor LRS01964BN
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Mercedes X253 Central Control Unit Electronic Module A2139006633
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BMW E46 Coupe Convertible Door Wiring Passenger Side Cable Harness Loom 6903096
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 Manual
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Audi A5 8T Head Unit Radio Player Navigation Control Module 4G0035061H
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Audi A5 8T 1.8 TFSI Starter Alternator Harness Wiring Cable 8K2971228G
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BMW F20 F21 F30 F31 118d 318d B47 150HP Engine Control ECU DDE 8473185 Manual
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Mercedes-Benz C208 W210 Front Right Door O/S Control Unit Module A2108207826
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BMW E81 E87 E90 E91 LCI 118d 318d N47 Diesel ECU KIT DDE 8506375 CAS3 + 2 Keys
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Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014
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BMW E90 LCI 330d N57 245HP ECU Engine Control Unit DME Automatic Gearbox
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BMW E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9159806
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BMW F30 F31 LCI 320dX B47 190HP Diesel Engine Control ECU DDE 8470176 Automatic
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Mercedes W176 W246 180 CDI OM607 Engine Control Unit Module ECU A6079002300
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Mercedes W639 Vito OM646.980 116HP Engine Module ECU Kit A6461507172 Key Lock
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Airbag Module Mercedes V177 W177 C118 Air Bag SRS Control Unit ECU A1779000304
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Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223H
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Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101
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Mercedes W211 Automatic Gearbox Transmission Module Control Unit A0015453116
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BMW E60 Light Control Unit Module LCM LM E6X MAN. LWR Lear 6983536
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Audi TT 8J ESP YAW Lateral Acceleration Sensor 7E0907655A
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BMW F20 F21 114i N13 102HP Engine Control Unit ECU Module DME 8610484 Manual
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Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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BMW E60 E87 E90 120d 320d 520d N47 ECU Kit DDE 7809000 CAS3 + Key Automatic
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BMW E60 E87 LCI E90 E91 N47 Preheating Control Glow Plug Unit Diesel Hitachi
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Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit SET X2 6G9T-14B192-BA
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Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
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Audi Q2 GA A3 8V Front Door Control Module Unit Right O/S 5Q0959393K
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Mercedes-Benz A-Class W169 CD Player Radio Stereo Head Unit A1698700289
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Audi A3 8V Control Unit PDC Parking Sensor Daytona Grey - Z7S 5WA919297B
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Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM3R 6827072
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BMW Mini Cooper One R50 DME Petrol Engine Control Unit ECU Automatic 7514587
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Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 Key EWS
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Volkswagen Polo 6R Passenger Wiring Loom Front Left N/S 6R2971121AR
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Alternator Generator Mini Cooper R55 R56 R57 R57 R58 LCI Petrol 7574365
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Mercedes X253 Front Bumper PDC Wiring Parking Sensor Loom Harness A2535406430
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Alternator Generator Mercedes W207 W212 OM642 Diesel Engine 200A A0009062722
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Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131
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BMW F32 F33 F36 435i N55 306HP Engine Control Unit ECU DME 7540686 Automatic
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Mercedes W205 Door Module Front Left N/S Control Unit ECU A2059001311
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Adblue Module BMW F40 SCR Control Unit ECU 9454320
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BMW E90 E91 E92 N52 218HP Engine ECU DME Kit 7594483 Automatic
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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit DME + CAS3 + Key 7600020 Automatic
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Mercedes-Benz S-Class W220 Battery Lead Cable Positive Pole A2205400030
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Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
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Mercedes W221 Bluetooth Module Multimedia Control Unit ECU A2168206526
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Audi A4 B8 A5 8T Connector AUX Adapter Port Socket Plug 8K0035474B
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Part no. 8576341-9
BMW F20 118d F30 318d 143HP N47N Engine ECU Kit DDE 8576341 + Key + FEM Manual
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Skoda Yeti 5L BCM Body Control Onboard Supply Module Unit ECU 1K0937086C
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Peugeot 207 Airbag Module ECU Control Unit Air Bag 9663593480
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Part no. F1ET-14240-LBG
Ford Focus Mk3 Rear Door Cable Wiring Harness Loom Left N/S F1ET-14240-LBG
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Part no. 6C1T-10300-CC
Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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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 .