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. 7849446
BMW F15 F85 F16 F86 Steering Wheel Lane Change Control ECU Module Unit 7849446
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BMW E87 E90 E92 Seat Wiring Cable Front Right O/S Heating Loom Harness 9131643
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Mercedes A B Class W169 W245 Rain Light Sensor Control Unit Module A1718203926
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Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400050
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Mercedes-Benz W169 W245 Start Stop Starter Alternator Module ECU A2669001000
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BMW 5 7 X5 E34 E38 E39 E53 Petrol Engine Starter Motor 1729981
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Mercedes C140 Fuse Box Relay Cover Lid Control Unit Bracket Trim A1405400282
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Mercedes W169 PDC Parking Sensor Distance Control Module Unit ECU A1695455332
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Mercedes W221 Air Conditioning Climate Heater Control Unit Module A2218700326
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BMW 3 6 Series E46 E64 Front Right O/S Seat Height Adjustment Drive
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951
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Audi A5 8T Parking Brake Handbrake Module Control Unit 8K0907801C
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BMW E65 E66 730i M54 Diesel Battery Cable Starter-Base B+ 7522057
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC Unit 9258278
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BMW F90 M5 G01 G11 G30 KaFAS Camera Speed Control ECU Module Unit 9461797
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Pedestrian Protection Mini F55 F56 F57 Tube Impact Crash Sensor Module 5A2A040
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BMW 1 Series E87 LCI ECU Footwell Light Module BASIS PL2 FRM3R Lear 9230451
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Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU Kit A0034466040 2 Keys
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Audi A8L 4H Head Up Display Hud Project Screen Control Unit Module 4H0919604G
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Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604
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KIA CEED I 1.6 CRDI Diesel Engine Control Module ECU 39120-2A051 Manual
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Steering Wheel Module BMW F20 F21 F30 F31 F32 Heating Control Unit 7849393
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Mercedes W205 Parking Sensor Wiring Front Bumper PDC Loom Cable A2055404007
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BMW 1 3 Series E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9132539
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Airbag Module Mercedes C118 W177 W247 Front Air Bag Control Unit ECU A1779006604
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Ford Transit Mk7 2.2 TDCi Engine Wiring Harness Cable Loom 6C1T-9K499-AHC
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Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Mercedes W212 SAM Module Control Unit Electrical Fuse Box Unit A2129007104
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Audi A3 8L TT 8N Battery Cable Positive Wire Lead Terminal 1J0971228AE
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Fuse Box Mercedes W211 CLS C219 Rear SAM Module Relay Control Unit A2115458601
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Mercedes C140 CL420 119.981 279HP Engine Unit ECU A0215452032 Automatic Gearbox
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Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6511501879 Key Lock
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Parking Distance Audi A3 8V TT Mk3 Seat Leon MK3 Control Module 5Q0919283E
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Renault Trafic 1.9 DCI Diesel Engine Control Unit Module ECU Manual 8200051608
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156
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BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9224673
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Mercedes W164 Gateway Control Unit Gateway Module ECU A1645403462
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Audi A3 8P Body Gateway Module ECU Control Unit 1K0907530AA
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Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
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BMW Z4 E85 2.2i M54 170HP Engine Control ECU Kit DME 7541335 EWS3 + Key Manual
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Module Mercedes SLK R171 Automatic Transmission Control Module A0005457916
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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Ford Fiesta MK7 Battery Box Tray Housing Holder Bracket 8V2110718AB
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Mini Cooper One Clubman R55 R56 R57 R59 R60 JCW Engine Starter Motor 7552697
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Mercedes C253 Windscreen Camera Control Unit Module A2479002516
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Mercedes W221 Safety Module Air Bag SRS Control Unit ECU A2218708292
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BMW 3 Series E91 E92 E93 Hifi Speaker Tweeter Rear 6942461
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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BMW F10 F11 F12 ECU ICM Control Unit Module 6856874
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Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A
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BMW E60 E61 E63 E64 PDC Parking Distance Sensor Diamond Metallic - A10 2180149
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BMW X3 E83 Light Lamp Switch Wiring Wire Cable Plug 3405795
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Audi A1 8X Air Module Control Unit Sensor 8X0959655B
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Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802F
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Audi A5 8T BCM Body Comfort Convenience Module Unit ECU 8K0907289C
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Mercedes W212 Front Bumper PDC Wiring Parking Sensor Loom Harness A2124403758
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BMW 5 Series E60 LCI Light Module Control Unit ECU Lear LM II E6X LWR 9192641
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BMW F10 LCI Central Looking Control Module Unit ECU 9313996
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Part no. 6934529-1
BMW X3 X5 E53 E83 EWS III Central Locking Immobilizer Module ECU 6934529
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Mercedes W245 Front Bumper PDC Parking Distance Sensor Comet Grey - 748
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BMW E70 E71 3.0d M57N2 235HP Engine Control ECU KIT DDE 7806976 CAS3 Key
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Part no. 7807187
BMW F10 F11 X5 E70 Alternator Generator Unit Valeo 230A Diesel Engine 7807187
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Part no. 9177209-1
Radio Business CD BMW E81 E82 X1 E84 E87 E90 E91 E92 Audio Player 9177209
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Part no. 23127JG71B
Alternator Nissan Qashqai 2.0 dCi Diesel Engine Alternator 12V 150A 23127JG71B
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Part no. A2115455232
Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115455232
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Part no. 7619713
Mini R55 R56 R57 R60 Gearbox Module Control ECU Automatic Unit 7619713
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Part no. A2829062000
Starter Motor Mercedes C118 W177 C247 Petrol OM282 Starter Motor A2829062000
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Part no. 6901469-4
5X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Part no. 7823706
Mini Cooper R55 R56 R57 LCI Engine Wiring Harness Loom DDE 7823706
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Mercedes A238 Convertible Folding Top Roof ECU Module Control Unit A2389000501
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Part no. 6918782
BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6913164
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Audi TT Mk2 8J 2.0 TFSI BWA 200HP Engine ECU Kit Ignition + Key 8J0907115N
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BMW E87 Light Module Control ECU Unit LCM Footwell Module PL2 FRMFA 6977723
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Mercedes W212 Control Unit Module Bracket Holder Mount A2125452640
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Part no. 8H0959655G
Audi A4 B7 Air Module Control Unit ECU Impact Sensor 8H0959655G
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Part no. 8590021
BMW G30 G31 530dX 540dX Diesel B57 Engine Wiring Harness Supply Line 8590021
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Part no. 6934836
BMW E60 E61 E90 E91 Xenon Adaptive Headlight Ballast Control Module 6934836
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Ford Transit Mk7 6000cd Radio CD Player Head Unit 8C1T18C815AC
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Part no. 8588547
Wiring Loom BMW X3 G01 X4 G02 B57 Harnes Diesel Engine Automatic Gearbox 8588547
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Part no. 7587548-2
Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS 3 + Key Manual
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Part no. 93868139
Renault Trafic III Opel Vivaro B Air Module Control Unit ECU 93868139 985101902R
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Alternator Generator Mercedes W204 W211 OM646 Diesel Bosch 180A A0131549002
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Mercedes ML W164 Control Unit Module Fuse Box SAM A1645404601
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BMW 1 3 F20 F21 F30 F31 Parking Assistant PDC Control Unit Module 6851822
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SAM Module Mercedes SLK R172 Rear Fuse Relay Signal Actuation Module
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BMW E90 E81 E87 E85 Alternator Generator 150A N45 N46 Petrol Engine 7533270
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BMW 4 Series F33 F83 M4 Switch Folding Top Sliding Up Down Roof 9366374
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BMW 1 3 X1 Z4 Series E81 E84 E87 E88 E89 E90 E91 E92 Radio Business CD 6975015
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Volkswagen Tiguan 5N Engine Starter Motor 02M911024C
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Citroen Berlingo Module Control Unit Brown 12V 20A 4 Pins 8200263342
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Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9365764
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Audi A4 B9 Wireless Charger Centre Console Phone Charging Module 8W0035502B
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BMW F20 F21 LCI M140i B58 Engine Wiring Cable Aquamist Water Methanol 8631668
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BMW 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6957140
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Part no. A1648705094
Mercedes ML W164 Audio Stereo Radio CD Player Head Unit A1648705094
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Part no. 9345377
BMW F06 Gran Coupe Footwell Light Module Control Unit ECU FRM III 9345377
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Part no. 6876863
BMW F40 F45 Mini F55 F56 Front Suspension Strut Protective Cap Cable VDC 6876863
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BMW E60 E87 LCI E90 120d 320d 520d N47 ECU Kit Control Unit DDE 7809000 CAS3 Key
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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 .