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 X5 E53 Amplifier Hifi Speaker System 65128379376 8379376
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Mercedes Vito W639 Fuse Box Relay Control Unit A6395450401
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BMW E60 LCI E63 CHAMP Business System Controller CD Player 9196760
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Adapter Lead Wire BMW F20 F21 F22 F23 F30 F31 F32 F33 VDC Cable Harness 6793850
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Mercedes GLE250 W166 OM651.960 204HP Engine ECU Kit Ignition + Key A6519004201
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BMW 1 3 Series E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9141682
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BMW 3 Series E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6977724
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BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9325653
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Battery Relay Mercedes W211 CLS W219 Module Control Unit 12V A0025426419
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Navigation Head Unit BMW F20 F21 F30 F31 LCI F32 Radio CD Player High 2 9867503
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BMW E87 E90 E91 E92 CCC CD Professional Navigation System 9138448
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Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824
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Mercedes W176 W204 C207 C218 W246 Fuel Pump Control Module A0009001803
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Battery Cover Mercedes C118 W177 W247 Upper Trim Housing Lid A2475400025
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Mini R56 R57 LCI One N16 1.6 98HP Petrol Engine ECU Kit DME 7607685 CAS3 + Key
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BMW E87 E90 E91 118d 318d M47N2 122HP Engine ECU KIT DDE 7803372 CAS3 Key
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Air Module Sensor BMW E60 E61 E63 Left B-pillar N/S 6974364
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Mercedes-Benz C W203 Front Bumper Parking Sensor Wiring Loom Cable Harness
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BMW Mini Countryman R60 Footwell Light Module High EKS ECU LEAR PL3 FRM 3457403
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Radar Sensor Mercedes W166 W176 W246 Front Control Unit Module A0009054603
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BMW E87 ECU Junction Box Body Control Module Unit H2 PL2 JBBFE 6971960
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Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014
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Mercedes R171 Fuse Box Control Unit SAM Module Relay A1715451301
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On-Board Screen BMW F10 F11 Central Information Display Monitor 10,25" 9227561
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BMW E81 E87 E90 120i 320i Engine N43 ECU Kit DME 7583225 + CAS3 Key Automatic
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Head-Up Display BMW X5 E70 Hud Project Dash Screen Control Unit Module 9154618
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Exide Battery Start Stop AGM EK950 95Ah 850A Accumulator
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Ford Transit MK8 2.2 TDCI Diesel Engine Control Unit Module ECU BK31-12A650-BB
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BMW G30 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9364201
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BMW 5 Series E61 Touring Body Control Module ECU Unit E6X KBM High 9151517
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Amplifier Unit BMW E87 E90 E91 Top Hifi System Harman Becker Control 9121635
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BMW X3 X5 Z4 E39 E46 E53 E83 E85 GPS Navigation Computer DVD 6920182
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Radio Player Mercedes W204 Audio 20 Navi CD Player Head Unit A2049069701
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Battery Cable BMW E63 E64 Negative Minus Pole IBS 6947497
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MINI One R50 Engine W10 1.6 90HP Engine ECU Kit DME 7527610 + EWS + Keys Manual
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Mercedes Class W221 Rear Fuse Box Control Unit Module SAM A2219006902
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BMW 1 3 Series E81 E87 LCI E90 120d 320d N47 Engine Wiring Loom 7802153 7580194
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BMW E87 E90 118i 318i N46 129HP Engine ECU KIT DME 7561834 CAS2 + Key Manual
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CD Radio Mercedes Vito W639 Sprinter W906 Audio Stereo Head Unit A9068200286
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BMW 3 Series E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8512291 Manual
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BMW E60 E90 Alternator Generator 150A 335d 525d 530d 535d M57N2 7800308
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Part no. 9153778
BMW E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9153778
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Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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BMW 5 6 E60 E61 E63 E64 M-ASK M-Audio CD Radio System Controller 9131716
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BMW E65 E66 Control unit power ECU module 6957026
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BMW F15 F31 F36 F45 Rear Boot Trunk Lid Tailgate Control Unit Module ECU 7367747
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BMW E60 X5 E70 X6 E71 E90 M57N2 Engine Control Unit ECU DDE 8509036 Automatic
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BMW F10 CIC Professional Unit Sat Nav Infotainment Radio Player Head 9237173
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Mercedes-Benz Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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Part no. 6963013
BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6963013
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BMW X5 E53 E60 E65 X3 E83 Adaptive Headlight ECU Control Unit 6934122
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Mercedes W204 Front Fuse Box Relay Module Sam Control A2129005712
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Mini R55 R56 LCI R60 R61 D N47N Engine Injector Module Wiring Harness Cable
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Mercedes Vito W639 Positive Battery Terminal Cover Cap Trim Red A6395450191
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BMW 7 Series E65 E66 Rear Bumper PDC Parking Ultrasonic Sensor Black Sapphire
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BMW E81 E87 E90 E91 E92 LCi Parking Control Module Unit PDC 6947795
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Part no. 6948351
BMW E60 M-Audio System Controller Navigation Head Unit 6948351
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BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5"
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Navigation System BMW X3 E83 Z4 E85 Mini R50 R52 DVD GPS Computer Unit
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Part no. 6916097-1
BMW 7 X5 Series E53 E65 Bulb Parking Light Headlight Front Lighting Cover
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Part no. 9343317
Audio Amplifier BMW F20 F21 F22 Harman/Kardon Active Sound Design System 9343317
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Part no. 9226328-1
BMW E90 LCI Junction Box Body Control Module H1 PL2RR JBBFE IIIR 9226328
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Part no. 8512047-2
BMW 3 Series E90 E91 LCI N47N 320d ECU Basic DDE Control Unit 8512047 Manual
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Part no. 8638552
Supply Module BMW F90 M5 F91 M8 G05 G11 G30 Integrated Control Unit 8638552
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Part no. 9131852
Mini R50 R53 6-Disc CD Changer Multichanger With Magazine 9131852
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Mercedes-Benz CLC-Class CL203 Fuse Box Module SAM Unit A2035454901
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Mercedes W203 CL203 Roof Alarm Motion Sensor Cover Trim Black A2038219751
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BMW E64 Gateway Module Sensor Air Module Control ECU 6975688
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Mercedes W213 Mechatronic Automatic Gearbox Control Unit Module A7252701905
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Part no. 7553735
Mini Cooper R50 R52 DME Petrol Engine Control Unit ECU 7553735 Automatic
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BMW E81 E87 E90 E91 Top Hifi System Amplifier Logic 7 L7 Harman Becker 6973618
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Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 CAS3 Key Automatic
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BMW Z4 Series E85 Sensor B-pillar Airbag Right O/S 6945158
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BMW Mini Cooper R55 R56 N12 1.6 Petrol Engine ECU Kit DME 7588502 CAS3 Key
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Glow Plug Relay Unit Black 8200798585
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Mercedes W204 Automatic Gearbox EGS Control Module Unit ECU A0005454516
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BMW E81 E87 E90 Hands-Free Electronics Charging Module MULF 6938943
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Mercedes W211 Battery Module Trunk Relay Control Module Unit A2115408645
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BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 7636292 Automatic
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MINI Cooper R50 1.6i W10 116HP Engine ECU Kit DME 7520019 + EWS + Key Automatic
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BMW X5 E70 X6 E71 30dX Diesel N57 245HP ECU Kit DDE 8517015 CAS3 Key Automatic
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Air Suspension Module BMW X5 F15 F85 X6 F16 F86 Regulation Control Unit 6860387
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Mini Cabrio R57 Roof Operating Unit Light Switch Panel 3450545
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BMW X3 X5 E53 E83 PDC Parking Distance Control Unit Active Module 9112454
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Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705
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BMW X5 Series E70 ECU Body Control Module Junction Box PL4 JBBFE II 9192740
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Starter BMW E90 Petrol N52 N53 Engine Starter Motor Unit 7521116
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BMW E90 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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Part no. RHD-F20-ANDROID-SCREEN
BMW F20 F21 LCI F23 GPS Navigation Sat Nav Display Screen Android Auto 10,25"
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Part no. 3450938
BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938
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BMW X5 Series E53 3.0i M54 Engine Wiring Loom Harness Module 7503611 7503617
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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 .