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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Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CA
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BMW E90 E91 LCI N47N 320d 184HP Engine Control ECU Kit DDE 8518269 + CAS3 + Keys
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Relay Mercedes E200 S124 Petrol M111 Overload Protection Relay A2015403245
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Door Module Mercedes W205 W213 X253 Rear Left Door Control Unit A2139002722
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Volkswagen Polo Mk5 Alternator Generator 140A Diesel Engine 04B903023D
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Skoda Octavia 5E Front Door Module Control Unit ECU Passenger Side 5Q4959392E
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Porsche Cayenne 9PA Body Gateway Module ECU Control Unit 7L5907530D
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Volkswagen VW Golf Mk7 Gateway Control Unit Module ECU GW MQB High 3Q0907530Q
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Mercedes R172 Cable Beam Engine Wiring Harness Loom A1725400533
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BMW F10 F20 F21 F22 F30 F31 Combox Telematics Bluetooth GPS Module Unit 9257152
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Mercedes X117 CLA 250 270.920 4-Matic Engine Control Unit Module A2709002100
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Mercedes C253 Body Control Module Temic A2539005906
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Audi A5 8T 1.8 TFSI CABD 170HP Engine Control Unit ECU 8T0907115A Manual
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Alternator Generator Mercedes W203 W209 M271 Engine Valeo 120A 14V A2711540902
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Mercedes W203 W210 W211 Starter Motor Diesel Engine Remy A0051511301
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105400230
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Ford Transit Connect Rear Door Wiring Cable Harness Loom FT1T14027LLC
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Mini R60 Amplifier Control Unit HiFi Audio Harman Kardon R57 R58 R61 9239605
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Mercedes W164 W251 Air Suspension Level Control Unit Module Airmatic A2515454132
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Audi Q7 4M Starter Motor Engine Diesel Valeo 06M911022D
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Volkswagen Golf 5 2.0 TDI Engine Control Unit ECU Manual 03G906016HJ
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Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
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Volkswagen VW Golf Mk7 Front Radar Distance Control Unit Module 3QF907561D
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Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
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BMW E81 E87 LCI E90 116i 316i N45N ECU Kit DME CAS3 + Keys 7581848 Manual
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Ford Transit Mk7 Handbrake Wiring Cable Battery Wire Cabling 6C1T-14K076-CC
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Volkswagen Touareg 7L Alternator Mounting Bracket Carrier Holder 070903143C
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Audi A1 8X Fuse Relay Box Electrical Control Unit Module 8X0937124
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Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BC
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Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209
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BMW 7 Series E65 E66 E67 Sensor Rear Seat Airbag 6946108
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Mercedes W212 E63 AMG Starter Alternator Cable Wiring Harness A2125406110
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Audi A3 S3 8Y Engine Alternator Generator Electric Unit 14V 140A 06K903026C
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Battery Cable Mercedes W166 C292 Starter Alternator Wiring Harness A1665402102
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Audi A3 8P Engine Alternator Generator 14V 140A 1.8 TFSI CDAA 06H903017E
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Audi TT FV Acoustic Controller Control Module Unit ECU 8S0907159B
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BMW E81 E87 LCI 116i E90 E91 316i N43 122HP Engine ECU DME 7595179 Automatic
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BMW 1 Series F40 Holder BDC Body Domain Controller Control Unit 6835857
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Volkswagen Golf Mk7 Audi A3 8V Engine Starter Motor Start Stop Denso 02E911024D
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BMW 5 6 Series F10 F11 Relay Fuse Auxiliary Box Holder Housing 7555157
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Mini R56 R57 R58 R60 Display Screen 9 inch Android Surround Panel H2862N-P
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Audi A1 8X 1.4 TFSI CAVG 185HP Petrol Engine ECU Kit Ignition + Key 03C906027CF
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BMW F01 Wiring Loom Cable Harness 9211840
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Mercedes-Benz C E Class W202 W210 ESP Yaw Rotation Rate Sensor A0015404517
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401930
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BMW 3 5 7 Series E36 E38 E39 Key Transmitter Receiver Module Unit 8362337
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BMW 5 Series E60 E61 Cable Loom Driver's Door Wiring Harness 6972569 6972564
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BMW E81 E87 LCI E90 N43 118i 318i ECU Kit DME 7621178 CAS3 Keys Manual
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Mini Cooper R55 R56 Wiring Cable Seat Heating Seat Occupancy Set 2754325
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BMW X5 Series E53 PDC Parking Control Module Unit PDC 4104215
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Mercedes GLE C292 Coupe Parking PDC Sensor Display Device Unit A0005427700
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Door Module Mercedes CLA C118 W177 Front Door Right O/S Control Unit A1779002107
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Skoda Fabia Mk2 5J Engine Alternator Generator Unit 14V 110A 06F903023D
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Skoda Octavia Mk3 5E Rear Bumper Parking Sensor Wiring Harness Loom 5E0971104B
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BMW X5 E70 Seat Control Unit Module ECU 9264973
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VW Volkswagen Amarok NF Wiring Harness Loom Cable MB3T14A411SLC
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Bosch Starter A6519062400
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Audi A7 4G8 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637H
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Kia Ceed Hyundai Air Module Safety Control Unit Ver. 3.3 ECU 95910-1H050
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Engine Wiring BMW F30 F31 F32 F36 LCI 330d 430d N57N Loom Harness Cable 8514831
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Alternator Generator Honda Civic Jazz Petrol Engine Mitsubishi 31100-PWA-004
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Opel Insignia A 2.0 CDTI Diesel Engine Alternator Generator 14V 100A 13502583
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Engine Wiring BMW F20 F21 LCI B37 Injector Loom Harness Cable Module 8571039
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Audi Q3 8U Head Unit Radio Navigation Multimedia Control Unit Panel 8U0035193B
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Earth Ground Cable BMW G20 G21 G30 G31 G11 Line Strap Battery Lead 6870078
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Porsche Boxster 986 Wiper Control Intermittent Relay 6 Pins 98661510300
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Audi Q7 4M Engine Starter Motor Actuator Starter Valeo 3.0 TDI Diesel 057911022
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Mercedes W177 Recirculation Pump Wiring Loom Cable Harness A2475402228
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Smart Fortwo C453 Power Steering Column Control Unit Module 6700003892
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Audi A4 B9 Front Seat Side Air Module Wiring Harness Loom Cable 8W0971553
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Audi A5 8T Gateway Convenience Body Module Control Unit ECU 8K0907279C
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Mini One F56 B38 102HP Petrol Engine ECU Control Unit Kit DME 8635624 BDC Keys
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BMW Z4 E85 Positive Battery Clamp Fuse Box Cable Wiring 6958138
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Audi A1 8X Fuel Pump Module Control Unit ECU 8X0907159B
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM II 9197163
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Volkswagen VW Touran 2.0 TDI BKD Engine Wiring Harness Loom Cable 03G972619KP
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Audi Q7 4L Diesel Alternator Generator Engine Electrical Unit 059903018E
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BMW F20 Gearbox Transmission Harness Wiring Loom Manual 8507908
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Audi TT 8J 2.0 TFSI BWA 200HP Engine Module Control Unit ECU Set 8J0907115
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Part no. 8H0959433M
Audi A4 B7 Body Comfort Control Module BCM Unit ECU 8H0959433M
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Alternator Mercedes W212 W447 X253 C238 Petrol M274 150A Bosch A0009060922
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CD Changer BMW E60 E61 E63 E64 Compact CD Changing Unit 6986081
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Audi A1 GB Seat Ibiza FR Alternator Generator 140A Petrol 1.0 TSI 05E903026Q
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Mercedes W205 C213 X253 Rear Door Control Module Unit ECU Left N/S A1679009011
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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 .