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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Porsche Cayenne 955 Comfort Control Unit Module ECU 7L5937049AA
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Audi A4 B9 Front Windscreen Windshield Lane Assist Camera 8W0907217B
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Mercedes CLK C209 Rear Body Control Module Unit BCM ECU A2098205226
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Audi S3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530G
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Mercedes W124 M103 Bracket Alternator Mount Holder Support A1031550435
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Ultrasonic Sensor BMW F70 G60 U06 Rear Parking PDC Set Portimao Blue - C31
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Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2045404150
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Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9495909
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BMW X3 Series E83 2.0d Engine M47N2 150HP ECU Kit DDE 7803373 EWS3 + Key Manual
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Porsche Cayenne 9PA Suspension Control Unit Module 7L0907553E
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Engine Wiring Mercedes W204 W212 M271 Petrol Harness Loom Cable A2711504233
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Mercedes W221 Rear Door Module Control Unit Left N/S ECU A0038207326
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Volkswagen Transporter LT 35 2.5 TDI Alternator Bracket Vw 074145169F
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BMW X5 E70 LCI Footwell Light Xenon Control Module Unit LEAR FRM3R XE 9263790
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BMW 1 5 7 Series F20 F21 LCI G11 G30 G31 Diesel Starter Motor Engine 8588898
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Audi A3 8V 1.4 TFSI Petrol Starter Motor Engine Actuator Unit 0AM911023N
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BMW E87 LCI 116i E90 316i N43 122HP Engine Control Unit ECU DME 7579142 Manual
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Ford Transit Mk8 Radio Stereo Multi Media Sat Nav Head Unit JK2T18K810LB
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BMW E60 E61 530i M54 231HP ECU Kit DME 7533651 + CAS2 + 2 Keys Automatic
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Battery Terminal Cover BMW E39 Mini R50 R52 R53 Trim Base B + Positive 1702103
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BMW F10 F11 306HP N55 535i ECU Engine Control Unit Module DME 7620419 Manual
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BMW X3 X5 E53 E83 PDC Parking Distance Control Unit Active Module 911942
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Ford Mondeo Mk4 Front Door Control Module Unit Driver's Side 9G9T-14B533-FB
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BMW X5 E53 3.0d M57N 218HP ECU Engine Control Unit DDE 7794626 Automatic
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Audi A4 B8 3.0 TDI 240HP CAPA Quattro Engine ECU Kit 8K0907401F Manual
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Audi Q3 8U A1 8X SD Card Map Pilot Navigation Europe 2013 8X0919884E
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BMW E60 E90 E91 N52 325i 525i 218HP Engine Control Unit ECU DME 7553166 Manual
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Mercedes Sprinter W906 Alternator Generator Diesel 180A 14V A0009068802
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TV Function Module BMW E65 E66 E67 Video Control Unit Tuner 6933866
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Audi A8L 4H Head Up Display Hud Project Screen Control Unit Module 4H0919604G
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Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit 1K0035186R
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BMW F46 218i B38 136HP Engine Control Unit ECU Kit DME 8674260 FEM + Key Manual
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Audi SQ5 FY Starter Motor Engine Diesel Bosch 06M911021A
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BMW E60 E61 E63 Professional CCC Navigation System Controller 9159022
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SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305
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VW Volkswagen LT 35 BBF 95HP Engine Control Unit Module ECU 074906018BD Manual
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Door Wiring Loom BMW E63 E64 Harness Passengers Side 6928975
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BMW F20 M135i F30 335i N55 326HP Engine Control Unit ECU DME 7540686 Automatic
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BMW 5 6 Series E60 E63 Passenger Door Airbag Control Module N/S 6941430
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Vauxhall Combo D 1.3 Cdti A13FD Engine Wiring Harness Loom 00552479600
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Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual
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BMW E60 Light Control Unit Module LM E6X MAN.LWR Lear 9112631
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549B
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Audi A4 B9 Tow Bar Trailer Towing Control Module Unit 4E0907383J
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469002718
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BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V5 REM 9293313
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Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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VW Volkswagen Crafter Mk2 SY Double USB-C Port Socket Centre Console 5NA035736
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BMW F20 F21 F30 LCI Headlight Control Unit Module FLE2 7492026
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Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 9118823
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BMW Z4 E89 20i N20 184HP Petrol Engine ECU Kit CAS3 + Keys 8661466 Automatic
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Alternator BMW E53 E83 M57N2 Generator Diesel Engine Power 150A 7797661
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Mini F55 Body Control Unit Basic Module Body Domain Controller BDC LR01 8795005
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Volkswagen Audi Skoda Audi 1.6 TDI Diesel Engine Starter Motor 0AM911023M
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BMW 1 Series F20 Rear Module Fuse Box Power Distribution Control 9362397
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Remote Control Receiver BMW F70 X5 G05 G60 U06 Mini F65 Radio Module 5B4E028
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Mercedes SLK R172 Relay Fuse Box Control Unit A1725400950
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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Seat Ibiza 6J IV 2.0 TDI CFHD 143HP Engine Control ECU 03L906018KR Manual
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Mercedes W204 Parking Control Unit Module ECU A2049012604
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7314798
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Alternator Generator BMW E87 E90 E91 Diesel Engine Electrical Unit 150A 7802471
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BMW 3 Series E92 Max Brose Footwell Light Module Control Unit ECU FRM3R 9224598
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Audi Q3 8U 2.0 TDI CFGC 177HP Quattro Engine Control Unit ECU 03L906018PH
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BMW E81 E87 LCI E90 120i 320i N43 170HP ECU Kit DME 7580279 CAS3 Key Automatic
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Audi A3 8P Front Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085B
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BMW F98 Engine Starter Motor 8671505
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Mercedes-Benz A B Class W169 W245 SAM Control Module Fuse Box A1699004800
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BMW F15 Top Hifi Audio System AMP Amplifier Harman Kardon 9330058
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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 .