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 F21 F30 F31 F32 Body Control Unit Module REM V2 9329701
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BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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Mini Cooper F56 B38 1.5 136HP Petrol Engine ECU Kit DME 8655106 BDC + Key Manual
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Mercedes W221 Air Suspension Control Unit Module Airmatic A2215404062
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Vauxhall Vivaro B Radio Stereo Head Unit Mount Bracket Holder Support 93867998
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Earth Ground Cable Mercedes Sprinter W901 Battery Wiring Loom Engine A9015400631
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Fuse Box Mercedes Sprinter W906 SAM Control Unit Module A9065452101
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Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014
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Audi Q7 4L Head Unit Radio Player Navigation Control Module Alpine 4L2035670J
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Audi S4 B9 S5 F5 Starter Motor Engine Actuator Bosch TFSI Petrol 06M911021
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VW Passat B6 Steering Wheel Steering Column Control Module 3C0953549A
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Audi A4 B7 Convertible Rear Speaker Amplifier Blaupunkt Right O/S 8H0035223E
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Negative Battery Lead BMW F45 F46 X1 F48 IBS Minus Pole Cable 9117831
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Energy Distributor Mercedes W204 W212 W906 Power Block Control Unit A0055461040
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BMW F34 Underfloor Battery Positive Cable Wiring Harness Lead 9308294
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Audi A5 8T 2.0 TFSI Petrol Fuel Injectors Wiring Cable Harness 06H971627
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BMW E90 LCI Junction Box Body Control Module H1 PL2RR JBBFE IIIR 9226328
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Audi A4 B8 Headlight Headlamp Range Control Unit Module 8K5907357
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Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Denso 8634167
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Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Audi Q3 8U 2.0 TDI 140HP CFFB Quattro Engine Control Unit ECU 03L906018CN Manual
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Mercedes W203 C220CDI OM611.692 116HP Engine Unit ECU Kit A6111537779 Key Lock
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Volkswagen Polo MK5 6R 1.2 TDI CFWA Engine Unit Module ECU 03P906021A
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BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE CAS3 + Key 8512047 Automatic
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BMW E90 M-Audio Controller System Control Unit Module Navigation 9186215
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Seat Ateca Door Module Control Unit Front Passenger's Side Door 5Q4959592K
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Engine Wiring Mercedes W204 W212 M271 Petrol Harness Loom Cable A2711504233
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Mercedes ML W163 Transfer Box Control Unit Module ECU A1635457932
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059004433
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Skoda Octavia 5E Windscreen Front Camera Driver Assistance Unit 3Q0980654H
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Mini F56 Active Sound Design Radio Audio Amplifer Control Unit Module 9366112
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BMW E81 E87 LCI 116i 1.6 Petrol N43 122HP ECU Kit DME 7599881 CAS3 Key Manual
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BMW G20 G80 G82 Amplifier Harman Kardon Booster Audio ECU Unit Module 5A38AB8
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BMW 5 Series E60 M-Audio System Controller Navigation Head Unit 6942637
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BMW F20 F21 F30 F31 F32 N47N Diesel Alternator 175A 7823343 7823344
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Mini Cooper R56 LCI Footwell Light Module LOW EKS ECU PL3 FRM3R Lear 3456951
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Audi A5 8T 2.0 TDI CNHA 190HP Engine Control Unit ECU 04L906021BG Automatic
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Audi A6 C7 Parking Brake Handbrake Module Control Unit 4H0907801F
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ECU Engine Control BMW E81 E87 E90 LCI 118d 318d N47 Diesel DDE 7823422 Manual
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Ford Transit MK6 2.4 TDDI Diesel Engine Control Unit ECU 2C1A12A650EA Manual
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BMW E60 LCI E90 E91 325d 525d Engine M57N2 197HP ECU Kit DDE 7806987 CAS3 + Key
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MINI Countryman R60 Holder Amplifier Bracket Holder Mount Hi-Fi Unit 9803651
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Radio Player BMW F20 F21 F22 F30 F31 CD Bluetooth Head Unit Control 9310461
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Mercedes C118 W177 W247 Front Door Module Control Unit Right O/S A1779007616
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Volkswagen VW Passat B6 Fuse Box Relay Electrical Module Unit 3C0937125
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8580307 CAS3 Key Automatic
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BMW 3 Series E93 E93N LCI Cabrio Battery Cable Plus Pole 9130313
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BMW E90 Radio Professional CD Audio Player Dash Control Unit 6983018
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BMW Z4 Series E89 ECU Body Control Module H4 Electronic Box 61359329799 9329799
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SAAB 9-3 1.9 TTiD ECU DDE Engine Control Unit Module 55568896
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Skoda Octavia Fabia Mk3 VW Polo Mk6 Rain Sensor Control Unit Module 5Q0955547C
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BMW 1 Series E81 Footwell ECU Light Control Module LOW PL2 FRM II Lear 9197162
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BMW X1 Series E84 20i N20 184HP ECU Engine Kit DME 8610678 CAS3 + Key Manual
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Audi A3 8P Multimedia Interface Unit Module Bracket Mount 8P0035785
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Audi A4 B9 Volkswagen Tiguan 1T Headlight Ballast Control Module 7PP941572AB
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Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147226
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Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572
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Audi A3 8P TT 8J A4 B7 Ipod Interface Multimedia Storage Compartment 8E0857925B
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BMW E60 E87 LCI E90 120d 320d 520d N47 ECU Kit Control Unit DDE 7809000 CAS3 Key
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BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + Key
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Mercedes W907 315CDI OM654.920 Engine Unit Module ECU Kit A6549009400 BCM + Key
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BMW F20 LCI F21 F22 Integrated Supply Control Module Unit 8647255
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BMW F40 F45 X1 F48 Mini F55 F56 Control Unit SAS Module ECU 9505275
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Ford Transit Connect Central Lock Control Unit Alarm Module ECU 2T1T-15K600-BD
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Mercedes W176 W246 Front Door Module Control Unit Module Right O/S A1669004302
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player Control Unit 9146710
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Mercedes W166 Hatch Tailgate Central Module Locking Control ECU A1669003708
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Mercedes W221 Front Door Control Left N/S Module Unit ECU A2219007301
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Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950
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Seat Ibiza FR KJ1 Fuse Distribution Box Electrical Control Unit 2Q0937548D
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BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359253480 9253480
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BMW E46 Control Unit Module Mirror Memory 6913364
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Mercedes-Benz A B Class W169 W245 Battery Relay Module Unit A0035422519
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Volkswagen Golf 5 2.0 TDI Engine Control Unit ECU Manual 03G906016HJ
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BMW G30 Engine Wiring Loom Harness Ignition Module 8482313
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BMW E60 E61 Navigation Head Unit CCC CD Sat Nav Player System Controller 9159028
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Audi A4 B7 4.2 BBK Petrol Engine Alternator Generator 079903021E
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Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698202675
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Mini Cooper One R56 High SPEG DC/DC M3 Fuse Distribution Box 3451925
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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 .