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 GT G32 ECU Body Domain Controller BDC Comfort Unit Module 8715804
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Engine Control Unit BMW F20 F21 F22 118i 218i B38 136HP ECU DME 8699955 Manual
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Head Unit Seat Ibiza 6J Leon 5F Audio Radio Player Sat Nav Navigation 5F0919604A
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BMW F10 F11 LCI On-Board Screen Central Information Display 10,25" 9321016
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Mercedes SLK R172 Airbag Module SRS Control Unit ECU A1729015805
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BMW E60 E81 E90 E91 Petrol Alternator Generator 180A 7555926
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BMW 5 6 Series E60 E61 E63 E64 1 Power Distribution Fuse Relay Box Rear 6956505
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BMW X3 E83 LCI M47N2 2.0d 150HP ECU Engine Control Unit DDE 7803373 Manual
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Headlight Module Audi A6 C7 A7 A8 Headlamp Range Control Unit 4H4907357C
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BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957109
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BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual
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BMW E90 E91 E92 LCI 335i N55 306HP Engine ECU DME Kit CAS3 + Key 7629130 Manual
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Mini One R50 R52 W10 1.6 90HP Engine Control Unit ECU Module 7557395 Automatic
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Citroen Relay 35 L Fuel Pump Carrier Bracket Holder Housing 9810737980
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IBS Cable Mini R55 R56 R57 Negative Battery Lead Terminal Wiring Cable 7587465
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AdBlue Module BMW G20 G21 G30 G31 X3 G01 Control Unit ECU SCR 9423397
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Mercedes W221 DSM ISM Automatic Gearbox Control Unit Module ECU A1644460710
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Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603
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BMW X1 E84 Footwell Light Control Unit Module ECU Lear FRM3R PL2 9308365
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Volkswagen Golf 8 CD1 Wireless Phone Charging Center Console Module 5NA980611A
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BMW E39 Saloon Rear Third Stoplamp Stop Lamp Brake Light 8360568
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Starter Motor Land Rover Freelander 2 Diesel Engine Actuator LR003468
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Mercedes SLK R172 W212 Rear Fuse Box SAM Relay Control Unit Module A2129004830
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FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9352864
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908
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Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Key + Lock
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BMW E81 E87 LCI E90 116i 316i 1.6 N43 ECU Kit DME 7583225 CAS3 Key Manual
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Mercedes W203 C220CDI OM611.692 116HP Engine Unit ECU Kit A6111537779 Key Lock
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Part no. 7610081-1
Mini R55 R56 Engine N14 1.6 174HP ECU Kit DME 7610081 CAS3 + Key Manual
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9315685
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BMW F22 F23 Active Front Bumper Sensor Pedestrian Protection Unit 9196020
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Part no. 4F0907468M
Audi A6 C6 Diagnostic Interface Gateway Module ECU Control Unit 4F0907468M
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Part no. 8663284-1
BMW F20 F30 F31 LCI 118i 318i B38 ECU Basic DME Control Unit 8663284 Manual
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Part no. 8U1035192A
Audi Q3 8U Sat Navi Stereo Radio Audio Head Unit CD Player 8U1035192A
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Part no. 7809944-6
BMW X5 E70 3.0d M57N2 235HP Engine ECU KIT DDE 7809944 CAS3 + Key Automatic
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Part no. 7514587
Mini Cooper One R50 DME Petrol Engine Control Unit ECU 7514587 Manual
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Audi A5 8F Convertible Folding Roof Module Control Unit 8F0959255
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Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
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BMW 7 Series E65 E66 Dashboard Control Display Screen 8,8" 6960096 6967626
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Part no. 1489994
Mini R50 R52 Starter Motor Engine W10 0,9KW Bosch Actuator 1489994
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Audi A6 C7 A7 4G 2.0 TDI Starter Motor Diesel Engine Denso 059911024P
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BMW X3 Z4 E83 E85 CID Control Unit CD Player Radio Audio System 9197131
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Mercedes-Benz W202 C208 W208 Parking Sensor Wiring Cable Rear PDC A2085403508
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BMW E60 E63 E64 Body Control Module ECU Control Unit 6969011
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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MINI Cooper R50 W10 116HP Engine ECU Kit DME EWS Key 7545789 Automatic
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Seat Leon Mk2 1P USB AUX Port Socket Connection Media Adapter 1P0035726A
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Mercedes W169 W245 A180 B180 CDI Engine Control Module A6401507934 Automatic
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Mercedes X253 Front Bumper Parking Sensor Wiring Loom Cable Harness A2535402400
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Renault Trafic F83 F9Q 760 Engine Control Module ECU 8200546983 Manual
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Fuse Box Control BMW E87 E90 E91 E92 E93 Front Power Distribution 6906609
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Volkswagen TOURAN 1T Body Control Comfort Unit Module BCM Unit ECU 1K0959433AR
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BMW 5 X5 Series E39 E53 Radio Business CD Player 6961218
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Mini Cooper One R55 R56 N12 120HP DME 7573701 Engine Control Unit ECU Automatic
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Skoda Octavia II 2.0 TDI BKD Diesel Starter Motor 02E911023L
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Roof Antenna Mini Cooper R57 Convertible Cabrio Aerial Base 9149080
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key + Lock
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Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + Key
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Part no. A6399003100
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003100
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Audi A8L 4H Onboard Comfort Control Module CCM Unit ECU 4H0907063CD
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Mercedes-Benz W168 M166 Engine Wiring Harness Loom Cable A1661500033
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103
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Part no. A9064461542
Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542
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Audi S3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530G
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BMW 3 E91 Touring Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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Fuse Box Mercedes W204 S204 W212 SAM Control Unit Module Relay A2129006724
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Part no. 8512499-6
BMW X1 E84 18dX N47 ECU Engine Control Unit Kit DDE 8512499 CAS3 + Key Manual
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Audi A3 8V Air Module Control Sensor ECU Unit 5Q0959655L
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Ford Transit Mk7 Starter Motor Engine Actuator Diesel 2.2 TDCi 6C1T-11000-AB
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Audi A8 S8 D3 Electric Parking Brake Module Handbrake Control Unit 4E0907801B
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Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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Ford Transit Connect Mk2 Headlight Module Control Unit ECU GK2113C148AB
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Part no. 03L903023L
Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023L
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Mercedes W169 A160 266.920 95HP Engine Control Unit ECU Kit A2661531491 Key Lock
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Part no. 7802929-1
BMW 5 7 E60 E61 E65 M57N M57N2 Compact Alternator Generator Valeo 170A 7802929
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Door Module Mercedes CLA C118 W177 Front Door Right O/S Control Unit A1779002107
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Audi A5 8T Alternator Generator Electrical Unit 150A 14V 3.0 TDI 059903019N
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BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542
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BMW X5 E70 Telematics Bluetooth Control Unit Module ECU Continental 9205930
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Vauxhall Corsa D 1.3 CDTI Engine Starter Motor 55217672
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PDC Parking Sensor BMW F20 F21 F30 Ultrasonic Front Tiefseeblau Deep Sea Blue
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BMW F10 F11 F01 Control Unit Module ECU Fuel Pump 7276384
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BMW E81 E82 E87 LCI E88 Engine N47S 123d ECU Kit DDE 7809002 CAS3 + Key Manual
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Body Control Module Mercedes Sprinter W907 W910 SAM BCM Unit ECU A9079000704
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Mercedes W204 C180 Kompressor 271.952 156HP Engine Control Unit ECU A2711504879
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Wiring Loom BMW F01 F07 F10 F11 Cable Seat Driver's Side Set 9219987
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BMW E60 Light Control Unit Module LCM LM E6X MAN. LWR Lear 6983536
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Mercedes Sprinter W906 Becker Map Pilot Navigation Module Sat Nav Navi Europe
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Mercedes Sprinter W906 OM651 Engine Wiring Harness Cable Loom A9065402727
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BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Automatic
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BMW 5 Series F07 F10 F11 CAS4 Control Unit Key Reading Module 9257038 6809374
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Telematics Module Mercedes W213 H243 Communication Blutooth Control A2479004415
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Part no. A2129001606
Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
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Mercedes W166 Radio Sat Nav CD Multimedia Control Central Head Unit A1669005420
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BMW X3 F25 Front Seat Control Unit Module ECU Left Right N/O/S 9369123
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Earth Ground Cable Mercedes Vito W447 Positive Battery Lead Wiring A4475401755
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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 .