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 W211 Front Drivers Door Left N/S Control Module A2118701126
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Audi A4 B8 Parking Brake Control Module Unit ECU 8K0907801K
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BMW X5 E53 3.0i M54 Wiring Loom Harness Engine Automatic Gearbox 7531992
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Mercedes W221 Front Camera Wiring Harness Cables Night Vision A2215409509
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Mercedes-Benz C CLK E S Class W202 C208 W210 W220 CD Changer Player A0028207989
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Mini Cooper One R55 R56 Petrol N12 DME 7588502 Engine Control Unit ECU Manual
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Alternator BMW E53 E83 M57N2 Generator Diesel Engine Power 150A 7797661
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Audi A6 C6 Alternator Main Cable Wiring Harness Loom 8K0971228AJ
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Automatic
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BMW F31 Touring Body Control Unit Module HKFM 7388490 0066245503 F005V01610
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Mercedes-Benz A-Class W169 Front Left Door N/S Control Unit Module A1698204526
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BMW X3 E83 2.0i N46 150HP Engine ECU DME 7561834 Manual
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BMW Z4 E85 2.5i Engine M54 192HP Engine ECU Kit EWS3 + 2 Keys 7527072 Manual
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key
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Volkswagen VW LT 35 Diesel Engine Starter Motor Unit Napa 069911023LX
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Audi TT 8N Headlight Module Ballast Relay Control Unit 4B0919471A
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM3R Basis Lear 9224616
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Mercedes W177 Glow Plug Relay Preglow Module Diesel OM654 A6549009900
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Mini Cooper R55 R56 N12 DME Petrol Engine Control Unit ECU 7600020 Automatic
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Mercedes A-Class W168 Door Cable Harness Wiring Front Passenger A1685405008
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MINI Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Automatic
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Volkswagen VW Golf Mk7 Front Radar Distance Control Unit Module 3QF907561D
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BMW 1 3 5 Series E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147216
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VW Golf 6 2.0 TDI Diesel CBD Engine Control Unit ECU Manual 03L906022LF
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CD Changer BMW E60 E61 E63 E64 6-disc Without Magazine 6949694
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Mercedes R171 SLK 200 M271.944 163HP Engine Module ECU Kit A2711538579 Key Lock
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Audi Q3 8U PDC Assistance Parking Distance Control Module Unit ECU 8X0919475N
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Mercedes ML W164 Cable Loom Wiring Parking Sensors Rear Bumper A1645402405
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Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU A6421501500 Automatic
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BMW 1 3 Series E87 E90 120i 320i N46 ECU Kit DME CAS2 2 Keys 7545042 Manual
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Starter Generator BMW i3 I01 Hybrid 60Ah 94Ah 120Ah Rex Petrol Engine 7625712
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BMW 3 5 7 Series E30 E34 E36 E38 E46 Petrol Engine Starter Motor 2354709
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BMW X1 E84 18dX Diesel N47N 143HP Engine Control Unit ECU DDE 8519005 Manual
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Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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BMW E60 Seat Control Unit Module Left Right N/O/S Temic 6927270
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BMW E87 E90 N46 118i 318i 129HP ECU KIT DME CAS2 + 2 Keys 7561834 Manual
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Mini R60 Xenon Headlight Adaptive Ballast Control Unit 7171587
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BMW 5 E60 E61 Front Door Wiring Loom Harness Passenger Side 9175879
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Mercedes Sprinter W906 Air SRS Bag Control Module Unit 0285010033 A9064460742
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Hyundai H-1 2.5 D4CB Engine Starter Motor 361004A000
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BMW F20 M135i N55 326HP Engine Control Unit ECU DME 8626762 Automatic
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Mini Cooper R56 SPEG PL3 M2 SPEG Fuse Distribution Box 3453736
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Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 8200935115 Manual
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Hands Free BMW E81 E87 LCI E90 Electronics Charging MULF2 9207361
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MINI One D R50 W17 1ND Engine Wiring Loom Harness Module 7790365
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VW Golf MK6 Body Control Comfort Unit Module BCM 1K0937085
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BMW G20 G21 G30 G11 X3 G01 X5 G05 Fuel Pump Control Unit Module ECU 7490824
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Audi Q2 GA Front Parking Sensor Assist Control Module Arrow Grey Z7W 5Q0919275B
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BMW E60 Light Control Unit Module LEAR LM E6X LWR 6943283
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Mercedes ML W163 SRS Control Module Sensor Unit Temic A1635422218
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Audi Q3 8U 2.0 TDI 140HP CFFB Quattro Engine Control Unit ECU 03L906018CN Manual
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Module Mercedes W177 W247 Instrument Cluster Control Module A2479001608
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Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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Mercedes W212 E200 BlueEFFICIENCY M271.860 184HP Engine ECU A2711500391
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BMW X5 E53 X3 E83 M57N2 Alternator Generator Diesel Engine Power 150A 7797661
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Fuse Box Citroen Berlingo Peugeot Partner BSM Module Control Unit 9807028880
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Audi A3 S3 8Y Engine Alternator Generator Electric Unit 14V 140A 06K903026C
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Audi A3 8P Engine Alternator Generator 14V 140A 1.8 TFSI CDAA 06H903017E
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Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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BMW 5 6 7 Series E60 E61 E65 N62N Petrol Alternator Generator 180A 7542934
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Audi Q7 4L Body Comfort Control BCM Onboard Supply Module Unit ECU 4L0910553L
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BMW F06 Electric Wiring Cable Loom Harness 9269983
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Audi A1 8X Air Module Sensor Control Unit Module 8X0959655A
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Porsche Boxster 986 Rear Screen Heating Relay Module 99661511700
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Mercedes W203 C220CDI OM611.692 116HP Engine Unit ECU Kit A6111537779 Key Lock
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BMW E92 Coupe Footwell Xenon Light Control Module Lear FRM3R PL2 9286882
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VW Polo 9N Seat Body Control Comfort Unit Module BCM Convenience Unit 6Q1937049B
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Audi A1 8X PDC Assistance Parking Distance Control Module Unit ECU 8X0919475AE
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Mercedes CLK A209 Convertible Antenna Amplifier Module A2098200789
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Audi A7 S7 4G 4.0 TFSI Petrol Engine Alternator Generator 079903015P
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BMW 1 Series 1 E87 6-disc CD Changer Without Magazine 6958198
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Auto Radio BMW E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9216273
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Audi Q7 4M Engine Starter Motor Actuator Starter Valeo 3.0 TDI Diesel 057911022
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Alternator Audi A6 C6 3.0 TDI Diesel Engine Generator 059903015R 1068673
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BMW Mini Clubman R55 Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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Renault Master III Opel Movano B 2.3 DCI CDTI Alternator Generator 231001822R
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BMW Z4 Series E89 Roadster Cabrio Convertible Top Module CTM 09281723 9281723
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Audi A5 8T A6 C7 USB Adapter Port Socket Connector Cable Wiring 4F0051510Q
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Alternator Mercedes W212 Engine Generator 220A Valeo A0009063522
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Mercedes W166 ML350 Bluetec 4-Matic OM642.826 Engine ECU Kit Module A6429000401
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BMW 3 E36 Coupe Saloon Aerial Antenna Amplifier Signal Booster Module 1387751
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BMW i3 I01 Holder Audio Amplifier Telephone Bracket Mount Trim 9251524
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Mini Cooper S R56 LCI N18 1.6 184HP Engine ECU Kit DME 8610006 CAS3 Key Manual
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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 .