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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Mini One R50 W10 90HP Engine Control Unit ECU DME 7545789 Manual Transmission
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Ford Mondeo MK3 2.0 TDDi Diesel Engine Starter Motor 2S7T-11000-DC
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Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 8K0955559D
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Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9352865 Manual
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Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926
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Mercedes W166 Tailgate Control Module Unit A1669006311
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Positive Cable BMW Z4 E89 Convertible Battery Plus Pole Power Red 9249103
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Volkswagen VW Touran Door Harness Loom Cable Wiring Front Passenger 1T0971120AC
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Audi A7 4G Fuse Box Relay Control Unit Module 4G0907355F
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BMW 3 5 Series E60 LCI E90 325d 525d M57N2 ECU Control Unit Basic DDE 7809941
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Audi TT 8N Air Module Control Module Unit ECU 8N0959655D
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BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9383700
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Renault Trafic II CD Radio Audio Player Stereo Head Unit 281150049RT
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Renault Trafic II Opel Vivaro B 2.0 DCI Diesel Engine Starter Motor 8200621305A
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8518424 + FEM + Key Manual
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Mercedes C253 OM654 Engine Wiring Cable Cover Duct Bracket Channel A6541599500
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BMW 1 3 E81 E87 E90 Business Navigation DVD M-ASK System Controller 9200447
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Mercedes R171 W203 Petrol Engine 271921 Wiring Harnes Loom A2711505433
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Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 80A971104A
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VW Volkswagen Sharan Front Door Left Right N/O/S Speaker Loudspeaker 7N0035454A
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Mercedes W166 Hatch Tailgate Central Module Locking Control ECU A1669003708
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BMW 3 Series E46 316i N42 116HP ECU Kit DME 7513965 + EWS3 + Key Manual
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BMW E60 E90 N52 325i 525i 218HP Engine ECU Kit DME 7555361 CAS2 Key Automatic
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BMW E65 E66 Sensor B-Pillar Air Module Right O/S 6929561
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Mercedes W164 C207 Automatic Gearbox ECU Control Unit EGS Module A0002703352
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Mini Cooper S F55 F56 B48C 192HP Petrol Engine ECU Kit 9897880 BDC + Key
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BMW Z4 E46 E89 Mini R50 R52 Parking Control Module Unit PDC 9112463
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Audi S3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433C
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Mini Cooper R57 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456034
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Mercedes-Benz A B W176 W246 160 180 CDI Transmission Control Unit Module ECU
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BMW E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 9181326
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BMW E90 E91 E92 LCI 335i N55 306HP Engine ECU DME Kit CAS3 + Key 7629130 Manual
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Part no. 038903024F
VW Volkswagen New Beetle 1.9 TDI BSW Diesel Alternator Generator 038903024F
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Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131
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Radio Stereo BMW F20 F30 F31 Professional CD DAB Nav Head Unit 9299272
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BMW X3 F25 Battery Cable 30dX 35dX Wiring Alternator Starter Cable B+ 8515491
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Ford Transit TT9 Control Unit Relay Central Door Lock Module ECU F3LB-14B118-AA
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BMW X1 Series F48 Wiring Driver's Side Door Cable Harness 9384569
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Airbag Module Citroen Berlingo Peugeot Partner Air Bag Control Unit 9803916880
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Mercedes W221 Fuse Box Front SAM Module Relay Control Unit A2215402862
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BMW F20 F21 LCI F22 M140i M240i B58 340HP Engine ECU KIT DME 8489450 FEM + Key
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Mercedes W169 W204 W211 C219 Replacement Fuse Kit Set N000000004325
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Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 6983334
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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Range Rover L322 3.0 Starter Motor Diesel Engine Denso 7787925
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BMW 5 Series E60 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Mercedes-Benz C E Class W204 W207 W212 Battery Holder Mount Bracket A2046280041
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Audi A4 B8 A5 8T Diesel 2.0 TDI Starter Motor Manual 03L911024
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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 .