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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Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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Mercedes W166 Switch Rotary Selector Controller Navigation Radio A1669003501
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BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7599881 CAS3 + 2 Keys
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BMW E60 E90 E91 330i 530i N52 258HP Engine ECU Kit DME 7559178 CAS2 + Key Manual
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Mini R57 Convertible ECU Footwell Light Module High EKS PL3 FRM3R 3455896
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Citroen C4 Peugeot 3008 Starter Motor Engine Diesel 9663528880
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Mercedes W202 C208 W210 Fuse Box SAM Relay Control Unit Module A0195455632
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Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9298939
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Display Screen BMW E60 E61 E90 LCI 8.8" Monitor Sat Nav 9193745
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Mercedes W212 Estate Roof Antenna Cover Shark Indium Grey Metallic A2128270228
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D
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Gateway Module BMW F10 F11 Central Module Control Unit Lear ZGW-02 ECU 9267515
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Audi A4 B8 Bose Audio AMP Amplifier Module Control Unit ECU 8T0035223AD
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BMW E90 Max Brose Footwell Light Module Control Unit ECU 9340339
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Mercedes Sprinter W906 OM651 Battery Wiring Harness Loom Cable A9065403815
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BMW 5 Series E60 520i M54 170HP ECU Kit DME 7533651 + CAS2 + Key Automatic
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Alternator Volkswagen Crafter 2.0 TDI Engine Alternator 120A Bosch 028903028E
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Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420
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Mini Cooper R57 R57N LCI Roof Operating Unit Light Switch 3450543
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BMW E60 E90 X5 E70 3.0sd 335d 535d M57N2 Engine ECU DDE Kit 7810980 Automatic
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BMW E90 NSW PL2 FRMII Light Control Module (LCM) 61359159811 9159811
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Mercedes ML W164 Audio Stereo Radio CD Player Head Unit A1648705094
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Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C
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BMW F30 F31 330dX N57N Engine Gearbox Module Wiring Cable Loom Harness 8518802
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BMW E85 Roadster Cabrio Safety Information Air Module 6939811
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Mini R50 R52 R53 6-Disc CD Changer Multichanger with Magazine 6946989
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BMW F06 F12 F13 M6 F10 M5 S63N 560HP Engine Control Module 8643126 Automatic
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BMW 3 5 X3 Series 4 E46 E60 E65 E83 M54 Petrol Starter Motor 2354693
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Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824
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Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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Audi TT 8J Petrol Engine Starter Motor 2.0 TFSI BWA 02E911023J
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BMW Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM II 3452683
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BMW 3 Series E93 Xenon Footwell Light Module Control Unit ECU PL2 FRM3R 9224593
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BMW F20 F21 F30 F31 LCI G30 G31 G11 Navigation Head Unit Sat Nav High 2 8708259
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Audi S4 B8 3.0 TFSI CGWC 333HP Quattro Engine Control Module ECU Kit 8K5907551B
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Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L
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BMW Z4 E89 EMF Module Parking Rear Brake Unit Electric Control 6792626
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BMW F34 Underfloor Battery Positive Cable Wiring Harness Lead 9308294
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Mercedes W251 R 320 CDI 642.950 224HP Engine ECU Kit A6421506434 Keys Lock
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Skoda Octavia 5E Windscreen Front Camera Driver Assistance Unit 3Q0980654H
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Part no. 7515029-2
Mini R50 R52 Petrol W10 Compact Alternator Generator 105A 7515029
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key
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Audi A6 C6 Diagnostic Interface Gateway Control Module Unit ECU 4F0907468D
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BMW 5 6 Series E60 E61 E63 E64 Power Steering Speed Sensor 6774039
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Vauxhall Vivaro B Renault Trafic 3 Fuse Box Battery Terminal Module 243501820R
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BMW E60 LCI E87 E90 120d 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 Key Manual
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Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 8383149
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Audi A3 8P TT 8J A4 B7 Ipod Interface Multimedia Storage Compartment 8E0857925B
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BMW F30 LCI 330e Hybrid High Voltage EDH Wiring Cable Wire 6824108
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BMW 3 Series E91 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6987999
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BMW X5 E53 Navigation System Sat Navi TV Video IBUS Module Unit 6968041
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BMW 1 2 3 Series F20 F21 F22 F30 Radio Professional CD Bluetooth Player 9299265
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit Module ECU 8C1112A650CC
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Part no. 7599881-18
BMW E87 LCI E90 E91 118i 318i N43 143HP Engine Control ECU DME 7599881 Automatic
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Land Rover Freelander 2 Yaw Rate Sensor 6G9N-14B296-AB
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Land Rover Range Sport L320 Diesel Engine Alternator Generator AH22-10300-AB
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BMW 5 F11 Touring Body Control Module ECU Junction Box V7 PL6 JBBFE III 9286943
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player Control Unit 9146710
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Volkswagen Passat B7 CAXA 122HP ECU Engine Control Unit Automatic 03C907309E
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Audi A3 8V Engine Starter Motor Actuator Starter 0AM911023G
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Mercedes Citan W415 109 CDI Fuse Box Module Unit 284B63788R
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Part no. 6962887
Air Module Sensor BMW Z4 E85 E64 B-Pillar Left N/S Crash Module ECU 6962887
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Part no. 8T0959760C
Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C
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BMW E87 E90 N46 120i 320i 150HP Engine Unit ECU kit DME 7565300 CAS3 Key Manual
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401830
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Part no. 9352130
BMW F33 Driver Side Seat Wiring Loom Electric Harness 9352158
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Part no. 9673749980
Citroen Berlingo B9 1.6 HDI Diesel Engine Wiring Cable Harness 9673749980
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Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945
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Part no. A2059000328
Door Module Mercedes GLC X253 Front Door Left Control Module A2059000328
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Part no. 6874337
BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6874337
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Vauxhall Opel Insignia A 2.0 CDTI Alternator Engine Genarator 13579668
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Mercedes W203 Front SAM Control Unit Module Fuse Box A2035454101
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Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698202675
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BMW 1 3 Series F20 F21 F30 Wiring Loom Harness Injection Valve Ignition 7608804
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Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM
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Part no. 8477121
BMW G01 G02 B47D Wiring Harness Engine Recuperation System Supply Module 8477121
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Skoda Fabia Mk2 5J Engine Alternator Generator Unit 14V 110A 06F903023D
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Mercedes W169 W245 SAM Control Module Fuse Box Unit A1695454332
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BMW F01 F02 F07 F10 F11 CAS4 Control Unit Key Reading Module 9241973
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BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6872837
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Volkswagen Sharan 7N Engine Starter Motor Lucas 02E911024CX
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BMW i3 I01 Holder Audio Amplifier Telephone Bracket Mount Trim 9251524
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Mini F55 BDC FCC BSI Fuse Box Power Distribution Control Module Unit ECU 5A402E9
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BMW 5 6 Series E60 E63 On-board Navigation Display Monitor Screen 6,5" 6957342
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Audi A4 B9 Front Door Module Control Unit ECU Passenger Side 8W0959592N
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Mercedes ML W164 Battery Positive Cable Wiring A1645402830
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Mercedes CLK W209 Radio CD Player Stereo Audio Head Unit A2098700289
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Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU 03L906022JM
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Mercedes S205 X253 Center Console Wiring Loom Electrical Harness A2055402224
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Mercedes W211 Rain And Light Sensor Control Unit Module ECU A2118206026
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Mini Cooper R57 R58 R59 Control Unit Module Bracket Holder PGS 2757722
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Part no. 8645325-2
BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Petrol Engine Unit 180A 8645325
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Part no. 7811111-4
BMW X3 E83 LCI 2.0d N47 177HP Engine Control Unit ECU DDE 7811111 Manual
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Starter Motor Mercedes W204 W212 Sprinter W906 OM651 Diesel Engine A0061514501
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Mercedes C140 Battery Box Boot Storage Cover A1406934633
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM V2 9329701
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BMW E60 E61 E90 E91 On-board Navigation Display Monitor Screen 6,5"
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BMW Z4 E89 Central Information Display Dash Screen Navigation Monitor 9282022
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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 .