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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Part no. 9813621
Mini Countryman R60 Fuse Distribution Box SPEG High DC/DC H7 9809382
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Ford Transit MK8 Fuse Box Relay Body Control Comfort Module BCM BK2T14B476BU
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Mercedes W212 Battery Holder Mount Bracket E-Class A2126280041
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Vauxhall Combo D 1.3 Cdti Fiat Lancia Alternator Engine Genarator 95511910
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BMW E61 Body Control Module ECU Unit KBM High 6978714
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Audi A5 8T Starter Motor 3.0 TDI CCWA Diesel 059911021D
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Mini Cooper D R55 R56 Diesel W16 109HP ECU Kit DDE 7823934 CAS3 Key Automatic
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BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315094
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BMW E87 ECU Body Control Module Unit H2 PL2 JBBFE 9119493
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Audi A6 S6 RS6 C6 4F Convienience Comfort Module Unit ECU 4F0910289N
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Mini Cooper R56 LCI R60 N16 1.6 Petrol Engine ECU Kit DME 7615981 + CAS 3 + Key
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Mercedes W177 OM608 Diesel Engine Wiring Loom Harness Cable Loom A6081500400
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BMW Z4 Series E89 Roadster Cabrio Convertible Top Module CTM 09281723 9281723
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Mini Cooper One R50 R52 Alternator Generator 100A Petrol 7523897
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ECU Unit BMW E81 E82 E87 LCI E88 N47S 123d Engine Module DDE 7811702 Manual
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Audi A1 8X 1.2 TFSI CBZA Petrol Engine Alternator Generator 04C903023L
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Fuse Box Mercedes W204 Battery Terminal Control Unit Module A2075401850
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Mercedes W177 Ambient Lighting Control Module Unit ECU A1779002610
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Peugeot 307 Citroen C4 C5 1.6 HDI Diesel Engine Starter Motor 1638115880
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BMW E65 E66 Navigation Sat Nav GPS System DVD Player 6948983
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BMW 3 5 7 X3 X5 Z4 Series E38 E39 E46 E53 E85 E83 Control Unit EWS III
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Mercedes W203 CD Media Player Radio Audio 20 Phone Head Unit A2038704589
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Audi Q5 8R Door Lock Control Module Unit ECU Front Left N/S 8K0959792N
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147226
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BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8506374 CAS3 + Key Automatic
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Audi A4 B8 Body Control Unit Basic Module BCM 8K0907063
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Battery Cable BMW X3 F25 X4 F26 Positive Plus Pole Lead 9321005
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BMW F20 F21 F22 Telematics Bluetooth Control Module Unit TCB ECE GPS 9389658
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BMW Z4 E89 Body Control Module H3 Junction Box ECU 9229880
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VW Volkswagen Golf 5 Radio CD Player Stereo Head Unit 1K0035186AD
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BMW Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3455534
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Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226
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VW Volkswagen New Beetle 1.9 TDI BSW Diesel Alternator Generator 038903024F
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Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950
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Renault Scenic 1.5 DCi Diesel Starter Motor Actuator Valeo 8200584675A
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BMW 1 3 5 6 X1 X3 X5 X6 Z4 Series Relay Change Over Contact Silent Blue 6918816
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BMW X5 E70 Footwell Light Module Control Unit ECU VDM PL4 FRM II Lear 9176826
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Part no. 7N0959794G
VW Volkswagen Sharan 7N Rear Left Right Door ECU Module Control Unit 7N0959794G
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Part no. 1508931
Mini Cooper S R53 Positive Battery Cable Plus Pole Wire 1508931
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Audi A5 8T Audio Amplifier Sound Booster Control Unit Module Unit 8T0035223S
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BMW X5 E53 Radio Stereo Screen Multifunctional Display Head Unit 6914605
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Airbag Module Mercedes W169 W245 Air Bag Sensor Control Unit ECU A1698207826
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Audi A7 4G A4 B8 A6 C7 Q5 8R Sat Navi Stereo Radio Audio Unit Player 4G0035061J
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BMW X1 E84 Front Door Handle Bowden Pull Cable Wiring 2990415
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BMW 3 5 X5 Series E46 E39 E53 M57 3.0d DDE 7789376 Engine Control Unit Module
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Mini Cooper One R50 DME Petrol Engine Control Unit ECU 7514587 Manual
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Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504
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Mercedes Citan W415 109 CDI Fuse Box Module Unit 284B63788R
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BMW F01 F07 530d 730d N57 Engine Control ECU Kit DDE 8511372 CAS4 Key Automatic
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Part no. 8K0915181C
Audi A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181C
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Part no. 8506666-3
Mini Cooper D R56 LCI 112HP Diesel N47N Engine ECU Kit DDE 8506666 CAS3 Key
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BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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Mercedes W639 109CDI 646.980 Engine ECU Kit Ignition + Key + Lock A6461507272
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Part no. 9225099
Battery Cable BMW X3 F25 Red Positive Plus Pole Blow Off 9225099
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Audi A6 C6 CD DVD Navigation Sat Nav Head Unit 4F0035769B
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207226
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Audi TT 8J Coupe Roadster Convertible Roof Control Module ECU 8J7959255B
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MINI Cooper R50 W10 116HP Engine ECU Kit DME EWS Key 7545789 Automatic
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BMW E60 E61N LCI E63 E64 M5 M6 S85 Idle Control Device Unit 7834495
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Mercedes W124 S124 Ignition Engine Control Unit Module A0155457032
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Audi A4 B6 B7 A1 8X 1.9 TDI 2.0 TDI Engine Alternator Generator 06F903023FX
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Airbag Module BMW G20 G21 SRS Control Unit Module ECU 9476858
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Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Denso DSN967
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Mercedes R231 Seat Control Unit Module Driver A2319003606
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BMW X3 E83 2.5i 3.0i M54 Wiring Harness Cable Engine Ignition Module 3412247
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Radio Head Unit Mercedes SLK R171 CD Player Control Unit Module A1719000100
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Part no. 6970680
IBS Cable BMW E60 Negative Battery Lead Wiring Harness Control Unit 6970680
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Part no. 8506281-1
BMW E87 E90 LCI 116d 316d Diesel N47 ECU KIT Engine DDE 8506281 CAS3 Key Manual
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Part no. 9151979-1
BMW E60 E90 Dashboard Dash Onboard Display Monitor Screen Display 8.8" CCC
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Part no. A2128702751-1
Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Part no. 9264976
BMW X5 E70 Seat Control Unit Module Front Left ECU 9264976
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BMW F20 F30 F32 120i 320i 420i N20 184HP Engine Unit ECU DME 8631725 Automatic
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Seat Ibiza V Audio Stereo Amplifier Control Module 2G0035456
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Window Lifter Drive BMW E87 E90 E91 Motor Rear Left 6927025
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ESP Module Mercedes W210 Electronic Stability Program Control Unit A0275455632
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Mercedes SLK R171 Fuse Box Rear SAM Relay Control Unit Module A1715451901
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Part no. 9197002
BMW X5 Z4 E70 E89 HiFi Stereo Audio Sound System Amplifier 9197002
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219013000
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Part no. 3457031
Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R Lear 3457031
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Mercedes X156 GLA200 M270.910 156HP Engine Control Unit ECU Kit A2709002900 Key
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BMW F20 F21 F30 F31 Petrol N20 Electrical Fuse Box Cover Lid Panel 8616568
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Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9213187
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BMW E60 E61 E63 E64 M-ASK M-Audio System Controller Navigation Radio 6942638
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VDC Module BMW F20 F21 F30 F31 Rear Suspension Level Control Unit 6855189
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Audi A5 8T CD Player Radio Multimedia MMI Head Unit ECU 8T2035666D
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BMW 1 3 Series E87 E90 LCI N47 116d 316d Diesel ECU Kit DDE 8512499 CAS 3 Key
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Ford Fiesta MK7 Display Screen Multifunction Radio Dashboard 8A6118B955BL
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Parking Brake Control Audi A4 B8 A5 8T Q5 8R Electric Brake Module 8K0907801E
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BMW G11 G12 G30 G31 Battery Cable Plus Pole Power Positive Wire Red 9350064
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Body Control Unit BMW E46 Z8 E52 E83 Module GM5 Star12 LIN High 6963338
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BMW E81 E87 LCI E90 N43 116i 316i 2.0 122 HP Engine Unit ECU DME 7621178 Manual
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Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241
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Part no. 9197161
BMW 1 Series E82 ECU Footwell Light Module Control Unit PL2 FRMFA 9197161
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Part no. 7490465
BMW F10 F20 F30 F31 Mini F55 F56 Seat Heating Module Control Unit ECU 7490465
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Part no. A9065454701
Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701
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Mercedes W639 120CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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Mercedes W168 Vaneo W414 Diesel Engine Speed Starter Motor A0051511601
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Part no. 7559178-6
BMW E60 E90 E91 330i 530i N52 Engine ECU Kit DME 7559178 CAS2 + Key Automatic
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BMW Z4 E85 MINI Cooper One R50 R52 R53 Speed Sensor
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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 .