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. A2709002100-5
Mercedes C117 CLA45 AMG M133.980 4-Matic Engine Control ECU Kit A2709002100 Key
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Mercedes Sprinter W907 W910 Front SAM Body Control Module Unit ECU A9079000806
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680
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Head Unit Mercedes GLA X156 Radio Media Player Navigation Switch A2469000816
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Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650
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Mercedes W166 C292 Fuse Relay Box Cover Trim Panel Lid Housing A1665400224
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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BMW F30 Front Light Lamp Adaptive Xenon Control Unit Module LEAR 7316142
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BMW X3 F25 X4 F26 Head Unit Basis Media Navigation System Controller DAB 9399454
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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Mercedes C209 Engine Kompressor 5 Speed Gearbox GSG Module Control A0015453716
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CAS2 Module BMW E87 E90 CAS2 ECU Comfort Control Unit 61356964051 6964051
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FEM Module BMW F20 F21 F22 F30 F31 F32 F36 Control Unit 9288304
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Volkswagen VW Touran 1T Alternator Main Cable Wiring Harness Loom 1K0971349EM
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Mini Cooper SD R56 LCI R60 143HP N47N Engine ECU Kit DDE 8517727 + CAS3 + Key
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BMW 3 Series E92 LCI Headlight Inner LED Module Unit 1301328884 1307329329
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BMW X3 E60 E61 E83 PDC Parking Ultrasonic Sensor Rear Montegoblau Blue A51
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Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702
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BMW E87 Footwell Light Module ECU Control Unit PL2 FRM 9204536
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BMW X5 E53 3.0d Diesel M57 Alternator 150V 7792092
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Audi S6 C6 Steering Column Wiper Switch Stalk Cruize Control 4F0953549A
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Audi A6 C6 6-Disc CD Changer Magazine Head Unit MMI 6946989
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VW Volkswagen Golf 6 Polo Radio Head Unit RNS 310 Media Player Unit 3C0035270
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Mercedes R171 Air Module SRS Control Unit Crash Sensor ECU A1718207326
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Part no. 8J0971029AE
Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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BMW 5 Series E60 E61 LCI Rear Bumper PDC Ultrasonic Sensor Interlagos Blau Blue
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Mini Cooper R56 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456394
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BMW Z4 E89 Roadster Cabrio Convertible Top Module CTM 09264978
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Mini Cooper SD R55 R56 LCI R60 N47N 143Hp Diesel ECU Kit DDE 8519663 CAS3 Keys
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BMW E65 Cable Harness Door Panel Card Rear Wiring Loom 6913147
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Part no. 8K0907801E
Parking Brake Control Audi A4 B8 A5 8T Q5 8R Electric Brake Module 8K0907801E
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Part no. 8XA035192C
Audi A1 8X Mulitmedia MMI Player Audio Stereo Radio Head Unit 8XA035192C
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Part no. 9289582
BMW X1 E84 Display Screen Monitor On-Board CID TV Navigation System 8,8" 9289582
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Part no. 6960383
Air Module BMW E60 E61 E63 Gateway High Control Unit ECU 6960383
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Part no. A9065452101
Fuse Box Mercedes Sprinter W906 SAM Control Unit Module A9065452101
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Part no. 8J7959255B
Audi TT 8J Coupe Roadster Convertible Roof Control Module ECU 8J7959255B
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Mercedes W203 CD Media Player Radio Audio 20 Phone Head Unit A2038704589
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BMW X3 G01 Fuse Relay Box Control Unit ECU 6828076 8795477
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Mercedes Vito W639 651.940 116 CDI 163HP Engine ECU Kit A6511501879 Lock + Key
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Mercedes W204 Radio Control Function Button Knob Controller Unit A2048704658
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PDC Wiring BMW E60 E61 Rear Bumper Loom Cables Set 6928366
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Part no. H1BT18B955EF
Ford Transit Custom Mk1 Dashboard Radio Head Unit Display H1BT-18B955-EF
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Mercedes W906 OM651.957 Diesel Engine ECU Kit Unit A6519002600 Key Lock Manual
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player Control Unit 9146710
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Mercedes-Benz E W210 Seat Memory Control Unit Module Front Left A2108206526
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Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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Part no. E90 Wiring Loom Set PDC Rear-3
BMW 3 Series 3 E90 E90N E91 E91N LCI Wiring Loom Set PDC Rear Set Complete
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Part no. 8J0971030AE
Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB
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Part no. 02Z911023N
Volkswagen VW Golf VI Engine Starter Motor 1.6TDI 2.0 TDI Diesel 02Z911023N
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BMW E60 E93 Mini Cooper R55 R56 R60 IBS Negative Battery Lead 9184204
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Mercedes W212 E220CDI OM651.924 Engine ECU Kit Key Lock Ignition A6519005301
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Door Wiring Mercedes W176 W246 Front Passenger Side Cable Harness A2465403505
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BMW X5 E53 E81 E87 E90 LCI Battery Mounting Bracket Bolt Holder
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Headlight Module Audi A6 C7 A7 A8 Headlamp Range Control Unit 4H4907357C
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BMW E91 Light Control Module ECU PL2 FRMFA Lear 61359128183 9128183
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Engine Wiring Mercedes W204 W212 OM651 Diesel Harness Loom Cable A6511504633
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Audi A4 B9 Gateway Control Module Unit ECU 4M1907468D
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Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Part no. 6952994
Air Module BMW E60 E63 Control Unit Centre Sensor ECU 6952994
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Part no. 8509023-1
Alternator Generator BMW E90 E91 E92 E93 LCI E84 F25 Diesel N47N 8507624
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Part no. 6970895
BMW E65 E66 Sensor B-pillar Right O/S Air Module Crash Sensor 6970895
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Part no. 8K2907115Q-1
Audi A5 8T 2.0 TFSI CDNB 180HP Engine ECU Kit 8K2907115Q 2 Keys + Ignition
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Part no. 06H903016L
Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
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Part no. 8625241-1
BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8625241 + FEM + Key
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Part no. 9223314-1
GPS Navigation BMW E81 E90 LCI Business System Car Infotaiment Computer CIC
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Part no. A0009000518
Audio Module Mercedes C238 Premium Sound E Control Unit A0009000518
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Part no. A4479005807
Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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Part no. 9664055780
Peugeot 307 Fuse Box BSM Control Unit Module 9664055780
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Part no. 9119445
BMW E81 E87 E90 E91 Power Distribution Fuse Box Front 9119445
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Part no. 6975686
BMW E60 E61 E63 Control Unit Gateway Module ECU 6975686
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Part no. A2479005615
Mercedes H243 H247 Body Control Module BCM Unit ECU A2479005615
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BMW E87 E90 Radio Business CD Player Audio Control Unit E81 E91 9200101
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Part no. 8573258-2
BMW F20 F30 F31 118d 318d N47N 143HP Engine Control Unit ECU DDE 8573258 Manual
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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Part no. 5WA035741B
Volkswagen Golf CD1 Antenna Amplifier Transmitter Receiver Module ECU 5WA035741B
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Part no. 6C1T-14K076-CC
Ford Transit Mk7 Handbrake Wiring Cable Battery Wire Cabling 6C1T-14K076-CC
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Part no. 6989068
BMW 5 X5 Series E53 E60 E61 PDC Parking Ultrasonic Sensor Rear Black 6989068
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Part no. 7521122-2
Starter Motor BMW E60 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Unit NSM1504
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Part no. 7557395-4
Mini One R50 R52 W10 1.6 90HP Engine Control Unit ECU Module 7557395 Automatic
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Part no. 3456852
Fuse Box MINI R56 LCI Cooper One PL3 SPEG H5 Distribution Control Unit 3456852
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Positive Cable BMW Z4 E89 Convertible Battery Plus Pole Power Red 9249103
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BMW E90 E92 E93 M3 Engine S65 420HP ECU Control Unit Kit DME 7846409 + CAS3 Key
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Mercedes W204 W207 Fuse Box Prefuse Box Module Relay Holder A2075402550
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Air Module ECU Mini F54 F55 F56 F57 F60 Crash Control Unit Module 9484304
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BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486
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Audi A8 D4 Boot Trunk Lid Tailgate Lift Control Unit Module ECU 3AA962243D
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Mercedes W169 W245 B170 M266.940 116HP Engine Control Unit Set A2661539679
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Part no. 7787356-1
BMW E46 E60 LCI E83 E87 M47N2 Diesel Starter Motor 7787356
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Part no. 6942637
BMW 5 Series E60 M-Audio System Controller Navigation Head Unit 6942637
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BMW E87 ECU Body Control Module L2 JBBFE PL2 61359131779 9131779
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Part no. 3450756
Mini Cooper R55 R56 Harman Becker Hi-Fi Audio Speaker System Amplifier 3450756
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Part no. A6421506691-1
Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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Part no. 8387540
BMW X3 E83 Positive B Battery Terminal Point Case 8387540
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Part no. 7508637
BMW 7 Series E65 E66 N62 Starter Motor 1,8KW Petrol 7508637 7508635
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Part no. 7545789-7
Mini One R50 W10 90HP Engine Control Unit ECU Kit DME 7545789 + EWS + Key Manual
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Part no. 7805098-1
Engine Starter Mini One D W17 R55 R56 Engine Starter Motor Diesel Valeo 7805098
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Part no. A4479009509
Mercedes W447 114CDI SAM Comfort Control Unit Module Box ECU A4479009509
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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 .