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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Mercedes W202 W210 Automatic Gearbox EGS Control Unit Module ECU A0275450132
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Mini Cooper R55 R56 R57 R58 Petrol Engine Alternator Generator 7576921
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Audi Q7 4L 3.0 TDI Dielsel Automatic Gearbox Module Control Unit ECU 0C8927750AL
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Telematics Module BMW F01 F07 F10 Bluetooth Combox Telematik ECU 9244188
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Engine Wiring Mercedes Vito W447 OM651 Engine Harness Cable A4474404705
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Mercedes W164 ML320 CDI 4-Matic OM642.920 Engine ECU Kit A6421506100 Key Lock
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BMW X3 Z4 Series E83 E85 E86 Radio Business CD Player 9197127 9205279
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Mercedes R172 SLK500 M274 Engine Control Unit Module ECU A2749000900
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BMW Mini Cooper S R55 R56 R57 N14 1.6 ECU Kit DME CAS 3 2 Keys 7610011 Manual
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Audi A4 B8 Gateway Interface Control Unit Module ECU 8T0907468AD
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BMW E81 E82 E83 E84 E85 E87 E90 Petrol Denso Starter Motor 7524843
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Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023
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Mercedes W164 OM629 Diesel Engine Motor Wiring Loom Cable Harness A6291501933
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Renault Master III Engine Alternator Mounting Bracket Carrier 8200803443
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9173686
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Land Rover Freelander 2 L359 2.2 Alternator Support Bracket Mount 9661310080
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Mercedes SLK R171 Rear SAM Control Unit Module Relay Fuse Box A1715450701
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Audi TT 8J Volkswagen Golf Mk5 Gateway Control Unit Module ECU 1K0907530L
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BMW E46 E53 Side Air Module Control Unit ECU Module 6933238
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Head Unit BMW F20 F21 F22 F30 F31 F82 LCI Sat Nav Radio Media Navigation 8736162
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Mini Cooper One R50 R52 R53 Front Loudspeaker Speaker 6801102
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Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118705694
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BMW 1 Series E87 LCI CCC CD Professional Navigation System Controller 9170717
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BMW E61 E92 F32 LCPA Seat Belt Control Module ECU 9129439
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BMW X1 E84 Radio Navigation Head Unit Android CarPlay Display 10.25 XRC8667
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059004433
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Mercedes W221 Headlining Alarm Sensor Module Cover Trim Black A2219050018
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Audi A3 8P Alternator Main Cable Wiring Harness Loom 1K0971349FL
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479009609
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Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T-14A073-CG
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Mercedes W169 W639 COMAND Navigation Head Unit Radio Sat Nav Screen A1699007900
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Airbag Module BMW E46 X5 E53 Control Unit ECU Side Air Bag 6905491
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Airbag Module Citroen Berlingo Peugeot Partner Air Bag Control Unit 9803916880
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BMW X3 X5 E46 E60 E61 E65 E83 E53 M57N Starter Motor 7788680
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BMW E60 E90 E91 N52 330i 530i ECU Kit DME CAS2 Key 7553166 Automatic
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BMW 1 3 Series E87 LCI E90 118d 318d N47 Diesel ECU KIT DDE 7809001 + CAS3 Key
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Citroen C4 Peugeot 407 3008 Alarm Anti-Theft Siren Module Unit 9657384680
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BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Control Unit Basic Module 9399431
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Positive Cable Vauxhall Insignia Battery Starter Alternator Plus 13295310
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Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU 8P0919283D
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BMW Z4 E85 Radio Business CD Player Multimedia MMI Head Unit 9124632
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Renault Master 2 G9U 754 2.5 dCi Diesel Engine Unit ECU 8200311550 Manual
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BMW E81 E87 LCI E90 E91 N43 Petrol Engine Control Unit ECU DME 7578032 Manual
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BMW X5 E70 E90 LCI F20 Engine Wiring N55 Valvetronic Servomotor Cable 7592508
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Audi TT 8J 2.0 TDI 170HP CFGB Engine ECU Unit Kit 03L906018DT Manual
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Mini Cooper One R55 R55N LCI High PL SPEG H4 Fuse Distribution Box 3455436
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Mercedes W221 S350 M272.965 272HP Engine ECU Kit A2721536979 Ignition + Key
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BMW E39 Cruise Control Unit Module 8375497
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Audi A6 C6 CD DVD Navigation Sat Nav Head Unit 4F0035769B
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 8383149
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Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
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Mini R57 R58 R60 Bluetooth Combox Control Module Audio ECU Harman Becker 9248315
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Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002
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BMW 5 Series E60 E61 LCI CCC CD Sat Nav Head Player System Controller 9170702
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BCM Module BMW E60 E63 E64 Body Control Module 6135 9114447
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom DDE A6511503233
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Land Rover Freelander 2 Fuse Box Body Control Module ECU BCM Unit 6G9T14D572LA
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BMW E81 E87 E90 LCI Top Hifi System Amplifier Logic 7 L7 Harman Becker 9218086
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Mercedes W166 Front Door Module Left N/S Control Unit ECU A1669005012
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Control Unit BMW E60 E61 E81 E87 E90 Fuel Pump ECU 7218339
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Mini R52 Cabrio Body Control Unit Basic Module BCM 6982115
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Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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BMW E60 E87 E90 Telematics Bluetooth Control Unit Module ECU 9174261
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Mercedes W204 PDC Sensor Wiring Loom Harness Front Bumper A2044400035
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BMW 1 Series F20 Rear Module Fuse Box Power Distribution Control 9362397
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Mini Cooper One R56 Footwell Light Module High ECU PL3 FRM II 3450280
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Nissan Quashqai M9R Diesel Engine Control ECU Manual Gearbox 23710 JD78E
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Ford Mondeo MK4 Negative Battery Terminal Cable Wiring Connecting 6G9T14301BK
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Audi Q7 4L 3.0 TDI BUG 233HP Engine Contol Unit ECU 4L0910401T Automatic
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Mercedes Sprinter W906 Mechatronic Automatic Gearbox Control Unit A9062700060
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BMW E82 Coupe ECU Body Control Module Junction Box L1 PL2 JBBFE II 9177978
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Seat Wiring Cable BMW E81 E82 E90 E92 Front Right O/S Seat Loom Harness 9131760
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Volkswagen Golf Mk7 Headlight Cornering Module Control Unit 3D0941329E
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Mini Cooper One R50 R52 W10 Engine Starter Motor 7570487
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D
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BMW F32 F36 F80 F82 M4 LCI Headlight Indicator Light LED Module Left N/S 7493231
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Mercedes W211 Automatic Gearbox Transmission Module Control Unit ECU A0355454232
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BMW E39 Saloon Rear Third Stoplamp Stop Lamp Brake Light 8360568
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BMW F10 F11 520d Diesel N47N 184HP Engine ECU DDE 8513242 Automatic
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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 .