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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BMW F01 F10 CIC Professional Sat Nav Infotainment Radio Head Unit 9239155
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CD Player BMW E60 E61 E63 M-ASK M-Audio Radio System Controller 6965046
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Mercedes W906 Glow Plug Relay Module Unit A6519007703
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Keyless Go Mercedes GLC X253 Keyless Entry Control Module A2229004213
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BMW Z4 E85 2.2i M54 170HP Engine Control Module Unit ECU Set 7543157 Manual
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Mercedes ML W164 W251 SAM Module Control Unit ECU A1649004600
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PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Assistant Control Unit 9865400
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BMW F10 F11 530d N57 245HP Engine Control Unit ECU Module DDE 8511385 Automatic
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BMW F07 F10 F11 F12 Diesel N57 Engine Wiring Injection Wiring Harness 8583575
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BMW E46 330i M54 231HP Engine Control Unit Module ECU DME 7509942 Manual
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Mercedes Sprinter W906 W907 Positive Battery Cable Wiring A9064401066
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Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
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Mini Cooper One R56 Footwell Light Module High ECU PL3 FRM II 3450280
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Hands Free Control BMW E81 E87 E90 Electronics Charging Module MULF 6965406
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BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156
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Mini Cooper R50 R52 R53 Rear Bumper PDC Ultrasonic Sensor Cosmos Black - 303
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3X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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BMW 1 3 Series 1 E87 E90 E91 M47N2 118d 318d ECU Kit DDE 7797496 CAS2 + Key
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BMW 3 5 7 X5 Series E38 E39 E46 E53 RDC Tyre Pressure Monitor Module 6759023
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Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
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VW Golf VII Skoda Octavia Fabia III Front Windscreen Rain Sensor 5Q0955547A
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Mercedes R171 Navigation Processor Multimedia Control Module Unit A2118701085
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VW Touareg 7P Handbrake Electric Parking Brake Control Module 7P0907801D
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Mini One R56 LCI R60 90HP Diesel N47N Engine ECU Kit DDE 8506666 + CAS3 + Key
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Audi A4 B7 2.0 TFSI BUL Quattro 220HP Engine Control ECU Kit 8E0910115H Manual
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Ford Fiesta Mk7 Dashboard Head Unit Media Player Control Panel C1BT-18K811-PA
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Engine Wiring BMW F20 F21 LCI B37 Injector Loom Harness Cable Module 8571039
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Audi A8L 4H Voltage Converter Stabilizer Control Module Unit ECU 8K0959663C
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Mercedes S204 Fuse Box Terminal Connection Unit A2045450369
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Differential Lock Module BMW F13 M6 F80 M3 Rear Axle Control Unit ECU 8065118
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Mercedes ML W163 Stability Controller 4ESP Unit Module ECU A1635458032
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Mercedes W222 C238 C257 Electrical Wiring Harness Loom Cable A2225404419
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907063AD
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Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700196
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Ford Transit Mk8 Bluetooth Module Unit Control ECU LR3T-14G087-VJ
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Manual
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Footwell Module BMW E88 Light ECU PL2 FRM3R Lear 9263795
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Alternator Generator Mini R56 Petrol Engine Motor Bosch 150A 7553009 DRA0214
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008404
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BMW 5 6 Series E60 E63 On-board Navigation Display Monitor Screen 6,5" 6957342
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BMW 5 Series E60 E63 Radio M-ASK M-Audio System Controller CD Player 6944109
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio CD Professional 65126957351 6957351
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Mini Cooper R56 Footwell Light Module ECU LOW EKS Lear PL3 FRM II 3455702
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BMW F20 F21 F30 F31 Parking Assistant Control Unit Module 6864898
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BMW F20 F21 F22 F30 F31 Alpine CD Radio Player Head Control Unit 9331597
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049069801
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Pedestrian Protection Sensor BMW F10 F11 Front Bumper Crash Impact Unit 9261962
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Mercedes W221 Steering Column Wheel Angle Sensor Control Unit A2215457832
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Audi A3 8P Side Air Module Control Unit ECU 8P0959655N
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Audi A6 C7 A7 4G Alternator Generator Hitachi 2.8 FSI 06E903018M
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Audi A1 8X Air Module Sensor Control Unit Module 8X0959655A
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Starter Renault Trafic II Opel Vivaro A 2.0 dCi Starter Motor Remy 233002654R
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BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine Control ECU DDE 8576341 Manual
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Mini Cooper R57 R58 R59 Microphone Hands Free Telephone 9167397
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Ford Fiesta Mk7 Radio Stereo CD Player Display Screen F1BT-18B955-DC
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Mercedes W176 A200 CDI BE OM651.901 Engine ECU Kit A6519007600 Key + Lock
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 120A Bosch A0141542702
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Engine Wiring Mercedes W906 OM651.955 Euro 5 Cable Loom Harness A6511505520
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Mercedes W166 Prefuse Box F32/4 Power Distribution Box A1665402950
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BMW Mini Cooper R55 R56 N12 1.6 Petrol Engine ECU Kit DME 7588502 CAS3 + 2 Keys
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Part no. 6926795
BMW 7 Series E65 Battery Cable Plus Pole 6926795 61126926795
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Steering Column Switch BMW E87 E81 E91 LCI Cluster Wiper Stalk 9123043
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BMW E60 E87 E90 120d 320d 520d M47N2 Engine Control ECU Kit DDE 7803373 CAS3
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Part no. AG9T10300AA
Ford Galaxy MK3 Mondeo MK4 2.0 TDCi Diesel Engine Alternator AG9T-10300-AA
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Automatic
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Jaguar XF250 3.0 306DT AJV6D Engine Alternator Generator 8X2310300CB
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Renault Master II Trafic II 2.5 dCi Engine Starter Motor Elstock 8200634602
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Air Module Unit BMW F10 F11 F30 F31 F25 F12 F13 X3 F25 ECU Control 9319493
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Audi A3 8L BOSE Sound Amplifier Unit Module Control ECU 8L0035223
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BMW F20 F21 F30 F31 116HP N47N Engine Control Unit ECU Kit DDE 8579479 Manual
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Audi A4 B9 Connector AUX USB Adapter Port Socket 8W0035736
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Audi A4 B9 2.0 TFSI CVKB Petrol Engine Starter Motor 06L911021
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MINI Cooper R50 W10 116HP Engine ECU Kit DME EWS Key 7545789 Automatic
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9314237
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Volkswagen Touareg 7L Control Comfort Unit Module Unit ECU 7L6959933
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BMW F20 F21 F30 F31 Driver Assist ACC Lane Change Switch Button Panel 9268478
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Mini Cooper D F55 F56 B37 Diesel Engine ECU Kit DDE 8586766 BDC LR01 Key Manual
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Parking Brake Module BMW F10 M5 F12 F13 M6 Control Unit Lock Module 2284105
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Audi A3 8P BCM Body Control Module Fuse Box Gateway Unit ECU 8P0907279J
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Mercedes W213 Bonnet Actuator Pedestrian Protection Left Right N/O/S A2139062201
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BMW E60 E61 LCI Front Bumper PDC Loom Cables Wiring Set 6928362
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Mercedes Sprinter W906 SAM Module Fuse Box Relay Control Unit A9069006701
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Mercedes W156 W176 Battery Cable Negative Lead Terminal Harness A2469052403
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Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233
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Mercedes Citan W415 109 CDI Fuse Box Module Unit 284B63788R
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Mercedes-Benz A-Class W168 Control Box Unit Cover Front A1685400082
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BMW 5 Series E60 LCI IBS Negative Battery Lead Cable Wiring Harness 9132249
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Part no. 6977723
BMW E87 Light Module Control ECU Unit LCM Footwell Module PL2 FRMFA 6977723
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Part no. 9231931
BMW E81 E87 E90 E91 E92 E93 Radio CD Player Professional Control Unit 9231931
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Audi A4 B7 Radio Player Head Unit CD Stereo Concert 8E0057186DX
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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 .