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 A5 8T 2.0 TDI CNHA 190HP Engine Control Unit ECU 04L906021BG Automatic
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Mercedes W176 180 CDI OM607 Engine Control Unit Module ECU 237101754R Automatic
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BMW E90 LCI Body Control Module H1 61359267419 9267419
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Mercedes CL203 Antenna Amplifier Control Module Unit Aerial Booster A2038701689
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Differential Lock Module BMW F10 M5 F80 M3 Rear Axle Control Unit ECU 7852630
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Audi Q7 4L Air Suspension Control Module ECU 4L0910553B
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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Audi S5 8T Gateway Control Unit Module ECU 8T0907468P
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Display Mercedes C205 Dashboard Central Multimedia Car System Screen A2059002211
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BMW 1 Series E87 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6961134
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Fuse Box Audi A3 8P Volkswagen Golf Mk5 Cover Trim Panel Housing 1K0937125C
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BMW E60 E61 E65 E87 E90 Trailer Towing Control Module AHM 4R 9186177
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BMW Z4 Series E85 Emergency Release Folding Top 7123023
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Air Suspension Module Mercedes W212 Regulation Level Control Unit A2129003608
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Starter Motor Citroen Berlingo Peugeot Partner Engine Diesel 1.6 HDI TS14E110
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VW Volkswagen Crafter 1 Wiring Loom Harness Cable 2N0971068
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Audi A3 8P Door Window Lifter Regulator Motor Front Right O/S 8P0959801F
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio CD Professional 9132216 65129132216
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BMW Mini Cooper S R52 R53 2 Positive Battery Cable Fuse Box Module B 6911180
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BMW F10 F20 F30 Integrated Relay Power Supply Module Distribution Box 7633242
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BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6870360
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BMW E93 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Alternator Motor BMW F20 F21 LCI B37 Diesel Engine Alternator 180A 8626086
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Audi RS4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064JJ
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Mercedes-Benz W221 Distronic Intelligent Cruise Control Radar Unit A2129004603
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049004306
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BMW X1 E84 Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS
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Parking Sensor Mini Cooper F54 F55 F56 F57 F60 PDC Ultrasonic Black 9274428 SET
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VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R
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BMW 1 3 Series E81 E87 LCI E90 N47 120d 320d 177HP ECU Kit DDE 7811700 CAS3 Key
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Mercedes W221 Air Suspension Control Unit Module Airmatic A2215404062
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Audi S8 D3 Digital Radio DAB Tuner Receiver Module Kenwood 4E0035583C
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Audi A4 B9 TDI Diesel Adblue Dosing Module Control Unit 4M0907355B
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Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105
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Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Skoda Fabia 5J Dance CD Player Audio Stereo Radio Head Unit 5J0035161A
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8645445 Dual Clutch
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BMW X5 X3 E53 E83 Control Module Unit Sliding Lifting Roof
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Ford Galaxy Mk3 Door Module Front Right O/S Control Unit ECU 6G9T-14B533-BL
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VW Volkswagen Touran TDI Diesel Engine Control Unit ECU 03G906021MP
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Audi Q7 4L Audio Amplifier Sound System Unit Module ECU 4L0910223H
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BMW E87 E90 118i 318i N46 Engine Control Unit Module ECU DME 7561834 Manual
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM IIIR Lear 9224617
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Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor Unit 022911023H
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BMW F07 F12 F13 LCI Camera System Unit Module Bracket Holder Mount 9186477
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Wiring Loom BMW F01 F07 F10 F11 Cable Seat Driver's Side Set 9219987
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BMW 3 Series E87 LCI Footwell Light Module ECU Control Unit LED XE FRM 9204536
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC 6974020
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BMW E46 Convertible Rollover Sensor Control Unit Module 8385223
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BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9241005
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Ford Transit Custom Negative Battery Terminal Cable Wiring BK2T-14303-AG
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BMW G30 G31 530dX 540dX Diesel B57 Engine Wiring Harness Supply Line 8590021
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Audi A3 8P Alternator Main Cable Wiring Harness Loom 1K0971349FL
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Mercedes W204 Door Wiring Front Left N/S Door Cable Harness A2045402410
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Mini Cooper R58 High PL3 SPEG H8 Fuse Distribution Box Control Unit 3456859
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BMW 5 Series E60 Hands Free Electronics Charging MULF 6946393 84216946393
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Mercedes Vito W639 Automatic Gearbox EGS Control Unit Module ECU A0015455716
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Audi A4 B9 Gateway Control Module Unit ECU 4M1907468D
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Mercedes W207 W212 Head Unit Sat Nav Navigation Display Screen
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Mercedes W205 Center Console Ambient Lighting Light Wiring Harness A2055402324
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BMW 1 2 Series F20 F21 F22 LCI Battery Cable Lead Positive Underfloor 9348761
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BMW F98 Battery Lead Pole Negative Cable IBS Sensor 8736083
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Mercedes-Benz W202 C208 W208 Parking Sensor Wiring Cable Rear PDC A2085403508
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Radio CD Player VW Volkswagen Caddy 2K Touran Head Unit 1K0057186AN
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Audi Q3 8U A1 8X BCM Body Control Unit Module ECU 8X0907063N
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BMW Z4 E85 Radio Business CD Player Multimedia MMI Head Unit 9124632
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BMW X3 E83 E90 Engine Automatic Gearbox Module Wiring Cable Loom Harness 3453247
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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 .