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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Seat Module BMW E60 E61 E65 E66 Front Control Unit ECU 6927313
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Mercedes X253 Central Control Unit Electronic Module A2139006633
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Airbag Module BMW E65 E66 Sensor Driver's Side Air Bag Control Unit 6960223
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Seat Ibiza KJ1 Keyless Go Control Unit Module ECU 3Q1959435C
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Volkswagen Polo 6C Body Sound Impact Control Module ECU 6C0907159B
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Mercedes C CLC Class CL203 W203 Rear SAM Unit Fuse Box Trim Cover A2036901430
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Mini Cooper R55 R56 N12 1.6 120HP Petrol Engine Control Unit ECU Manual 7600019
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BMW 3 5 Series E34 E36 Hazard Warning Relay 1388533
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Mercedes-Benz C CLK W202 W208 Gearbox Control Module Bracket Holder A2085400073
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Mercedes-Benz E W210 Seat Memory Control Unit Module Front Right A2108206626
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Engine Wiring BMW i3 I01 Hybrid Rex Sensors Cable Loom Harness 7647591
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BMW U06 Positive Power Cable Harness Wiring Underfloor Lead 5A83C36
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BMW X5 F15 Antenna Aerial Diversity Trap Circuit Control Module 9270490
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Ford Transit Connect Door Module Front Right O/S Control Unit ECU F1ET-14F144-BC
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BMW X6 F16 Bumper PDC Wiring Loom Parking Sensor Rear Cable Harness 9367702
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Mercedes W221 Parking Aid Sensors Control Unit Module A2215407545
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Porsche Macan 95B Start Stop Voltage Stabilizer Converter Module 8K0959663H
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Engine Wiring Mercedes W204 W212 M271 Petrol Harness Loom Cable A2711504233
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Peugeot 207 Airbag Module ECU Control Unit Sensor Air Bag 9663593380
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Exide Battery Excell EB620 62Ah 540A Accumulator
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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 Key EWS
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Parktronic Mercedes C118 C167 W177 W247 Parking Control Unit Module A0009000646
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Volkswagen Golf SV 1.5 TSI DADA Automatic Engine Wiring Harness 05E972627B
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BMW E60 LCI E81 E90 E91 Petrol Alternator Generator Bosch 180A
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Audi A8 D4 Battery Starter Alternator Harness Wiring Cable 4H0971224
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Display Screen BMW i3 I01 Central Information 10,25" Control Unit Module 9306743
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BMW X5 E60 E61 E65 E70 Front Left N/S Seat Height Adjustment Drive
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Audi A4 B9 A5 F5 Q5 FY A6 C8 A7 C8 Alternator Generator Valeo 04L903018A
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Mercedes SLK R171 Rear Bumper PDC Wiring Loom Parking Sensor Cable A1715403932
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Battery Clamp BMW F30 F31 F32 F80 Safety Positive Plus Pole Red 9208241
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BMW X3 F25 X4 F26 N57 Fuel Injection Line Wiring Loom Harness Cable 8507949
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Mercedes W221 Prefuse Fuse Distribution Box Unit Front A2215401250
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VW Volkswagen Golf Mk5 Sunroof Sliding Roof Drive Unit Motor Actuator 8D0959591C
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Renault Trafic II CD Radio Audio Player Stereo Head Unit 281150049RT
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Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BB
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Ford Transit Connect Negative Battery Terminal Cable Wiring 3T1T-14301-AC
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Audi A5 8T 2.0 CNCD Petrol Starter Motor 06H911024B
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BMW 5 Series G11 G30 Telematic Control Unit Battery 9361678
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Ford Focus Mondeo Escort 1.8 Petrol Engine Motor Starter XS7U11000C4A
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BMW X5 E53 Radio Stereo Screen Multifunctional Display Head Unit 6914605
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Mercedes-Benz C CLK W202 W208 Alarm Control Module Bracket Holder A2028281114
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BMW 3 Series E92 Sports Seat Left Right Thigh Support Cover Trim Leather Dakota
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BMW X6 E71 Body Control Module Unit Junction Box PL4 JBBFEIII R ECU 9292707
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Mini Cooper F56 136HP Petrol B38 Engine Control ECU DME Set 9897192 Manual
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Mercedes Vito W639 109 CDI 646.981 95HP Engine Unit ECU A6461500678 Manual
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BMW E60 E63 E64 530i 630i N52 258HP Engine Control Unit Module ECU DME 7546990
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Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
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Fuse Box Cover BMW E60 E61 E63 E64 Power Distribution Trim Panel Lid 6906601
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BMW i3 I01 Hybrid Electric Earth Ground Cable Line Strap Battery Lead 8602123
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VW Volkswagen Sharan Speaker Loudspeaker Front Door Left Right N/O/S 7N0035454A
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Mercedes CLS W219 Head Unit CD Player Navigation Radio Audio Unit A2119060700
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Mini Cooper One D R50 W17 Alternator Generator 130A 7790879
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BMW F20 F30 F32 F33 F34 B38 B48 Petrol Engine Alternator Generator 180A 8645325
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Volkswagen Golf Sportsvan Body Control Comfort Unit Module BCM Unit 5Q0937086BK
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Mercedes R231 SAM Module Control Unit Fuse Relay Box Rear A2319007306
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BMW E60 E61 530d M57N 218HP Engine Control Unit Module ECU DDE 7811898 Automatic
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BMW 1 3 E87 E90 N45 116i 316i Petrol ECU Kit DME 7557809 + CAS 2 + Key Manual
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Engine Wiring Mini F55 F56 F57 F60 Petrol B36 B38 Loom Harness Cable 8742681
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BMW Z4 Series E85 M54 Wiring Loom Harness Engine Ignition Module 7537281
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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 .