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. 9177209-2
BMW 1 3 X1 E81 E82 E84 E87 E90 E91 E92 2 Radio Business CD Audio Player 9177209
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9303541
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Renault Trafic Radio Stereo Audio CD Player Head Unit Sat Nav TomTom 281152957R
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Mercedes-Benz A B Class W169 W245 SAM Control Module Fuse Box A1699004800
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Gateway Module Audi A3 8P Volkswagen Golf Mk5 Control Unit 1K0907530Q
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BMW E60 LCI E90 325d 525d M57N2 ECU Kit Basic Control Unit DDE 8506951 CAS3 Key
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BMW E87 E90 N45 116i 316i 116HP Petrol ECU Kit DME 7557809 + CAS 2 + Key Manual
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Audi Q3 8U Sat Navi Stereo Radio Audio Head Unit CD Player 8U1035192A
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Negative Lead Battery Cable BMW G11 G30 G31 X3 G01 IBS Wiring Harness 6840519
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BMW 1 3 Series F20 F21 F30 F31 N47N Earth Cable Battery Engine 7638001
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Mercedes W164 Fuse Box Relay Module Unit A1645403472
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BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME 7573863 CAS3 Key Automatic
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BMW E90 330d M57N2 231HP Engine Control Unit Module ECU DDE 7810950 Automatic
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Battery Clamp VW Golf 8 CD1 Audi A3 8Y Battery Base Bracket Holder 5Q0803219C
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BMW E60 E90 E91 N52 325i 525i Engine ECU Kit DME 7553166 CAS2 Key Automatic
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BMW 1 3 5 E60 E61 E87 E90 E91 N52 WAI Alternator Generator 155A 11077N
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Bosch S5 A13 AGM Start Stop Accumulator Battery 95Ah 850A 12V
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Engine Starter BMW F40 F46 F48 B47B B47D B48E Diesel Motor Actuator 8580390
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BMW E60 E90 330d 530d M57N2 231HP ECU Engine Control Unit DDE 7803369 Manual
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Bosch S4 008 Accumulator Battery 74Ah 680A 12V
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BMW F34 GT Mini F55 F56 F60 Radio Remote Control Unit Receiver 434 MHZ 7928646
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Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
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BMW F07 GT Footwell Light Module Control Unit ECU FRM3 9225711
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BMW X5 Series E70 ECU Body Control Module Junction Box High PL4 JBBFEII 9192739
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BMW X5 E70 X6 E71 CAS3 Control Unit Key Reading Module 9262360
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Mini Cooper R60 Footwell Light Module High EKS PL3 FRM3R Lear 3456952
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Audi S5 8T Parking Electric Brake Handbrake Module Control Unit 8K0907801L
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Audi A3 S3 8V Door Control Module Front Passenger Side Left N/S 5Q0959392B
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SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501
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Audi A6 C6 Power Supply Module Comfort Control Unit ECU 7591534
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Part no. 7641003-4
Mini Cooper S R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + 2 Keys Manual
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SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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BMW 5 Series E60 LCI Light Control Unit Module LEAR LM II E6X LWR 9203081
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Part no. 420295
Mini R55 R56 R57 Halogen Headlights Control Unit Module ECE 0420295
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Radio Comand Mercedes W176 W246 Navigation Head Unit CD Infotainment A2469004819
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Part no. A2038209385
Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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BMW F20 F21 F22 F30 F31 Radio Professional CD Player Control Unit Module 9290991
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PDC Wiring BMW X3 F25 Front Bumper Loom Cable Harness Parking Sensors 9304728
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BMW E60 E61 CIC Professional Navigation System Controller Head Unit 9214925
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BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 6825541
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Mercedes ML W164 Radio CD Player Audio Stereo Head Unit A1648208289
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BCM Module Mercedes W117 W176 W246 Body Control Module Unit ECU A1569003203
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BMW X5 X6 E70 E71 Rear Differential Control Module Unit QMV 7595847
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On-Board Screen BMW F20 F30 LCI Information Display Touch Monitor 8,8" 6844126
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Mercedes Vito W447 Air Module Sensor Control Unit ECU A4479001000
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Mercedes ML W164 Front Right Control Unit Module Door A1648203885
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Mercedes W213 Front Door Module Control Module Unit Right O/S A2139002422
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BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Control Unit DDE 8510592 Manual
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Mercedes W221 Power Supply Battery Control Module Unit A2215400401
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BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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BMW F01 F07 F10 F11 Tire Tyre Pressure RDC Control Unit Module 6871056
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Ford Transit TT9 Control Unit Relay Central Door Lock Module ECU F3LB-14B118-AA
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BMW F20 F21 F22 F30 F31 LCI Radio CD Player Navigation High Head Unit 9437949
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BMW X3 E83 M47N2 2.0d 150HP ECU Kit DDE + EWS + Key 7801711 Manual
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Part no. 7552176-11
BMW E87 E90 118i 318i N46 129HP Engine Control Unit ECU Kit DME 7552176 CAS2 Key
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BMW 5 Series E60 520i 525i 530i M54 Engine Gearbox Wiring Harness Loom 7529729
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Door Module Mercedes C219 Front Right Door O/S Control Unit Module A2198200726
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Renault Trafic Vauxhall Vivaro Relay 4-Pin Blue Unit 252301716R
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Part no. 9325656
BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9325656
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Part no. 9163348
BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9163348
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Part no. 9112631
BMW E60 Light Control Unit Module LM E6X MAN.LWR Lear 9112631
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Part no. 9144773
BMW 1 3 Series E87 LCI E90 E91 E92 Radio CD Professional 9144773
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Part no. A2129005822
Fuse Box Mercedes W204 Front SAM SRB Module Fuse Relay Box Unit A2129005822
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Part no. A9065450003-1
Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003
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Part no. 7PP907283
Audi RS6 C7 Tire Tyre Pressure Monitor System Moduel Control Unit ECU 7PP907283
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Part no. 6927315
Seat Module BMW E60 E61 E65 E66 Front Left Right N/O/S Control Unit ECU 6927315
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BMW E60 E90 E91 N52 325i 525i 218HP Engine Control Unit ECU DME 7555361 Automatic
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Part no. 8791692
BMW F10 F20 F30 Head Unit Basis Media Navigation Headunit 8791692
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Part no. 6918871
BMW X5 Series E53 Radio BMW Business Cassette Player 6918871
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Mercedes Vito W639 Airbag SRS Module Control Unit ECU Air Bag A0009010201
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Display Screen Mercedes W213 C238 Instrument Cluster Speedo Meter A2135408492
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BMW E81 E87 E90 E91 E92 LCI Parking Control Module Unit PDC 6973114
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Mercedes R231 Radio Stereo Sat Nav Display Screen Head Unit A2319002001
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BMW 5 Series F10 F11 Cable Loom Front Driver's Door Wiring Harness 9255986
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Mini Cooper R57 R58 R60 R61 Amplifier Control Unit Hifi Harman Kardon 9260949
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BMW E46 Z4 E85 M54 Automatic Gearbox ECU Control Module EGS 7522980
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Relay Mercedes W163 W169 W203 W210 Relay Unit 5-Pin Yellow Tyco A0025421419
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Mercedes W204 Dashboard Dash Navigation Central Display Wiring Cable A2045405709
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Mercedes SLK R171 Roof Module Convertible Folding Top Control Unit A1719000000
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BMW i3 I01 LIM Module Hybrid Electric Control Unit 9494498
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BMW F10 F11 X3 F25 F30 LCI Mini F60 Tailgate Smart Opener Control Module 7932682
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Mini F54 F55 F56 F57 F60 Petrol B36 B38 B46 B48 Engine Starter Motor 7645979
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Mini R50 R52 R53 Radio Boost CD Player Head Unit Audio Control 6927904
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BMW 5 7 X5 Series E53 E60 E61 E65 E66 Handset Phone Mobile EVEREST 6953468
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BMW X5 Series E53 Front Bumper PDC Loom Cables Wiring Set 6960000
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Audi TT 8J Audio Amplifier Radio Lear Sound Unit 8J0035223B
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BMW F20 M135i F30 335i N55 326HP Engine Control Unit ECU DME 7540686 Automatic
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Mercedes Vito W447 Fuse Relay Box Module A4475405931
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BMW F90 M5 F92 M8 G11 G15 G20 G29 G30 G32 Fuel Pump Control Unit Module 7461741
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On-Board Screen BMW F10 F11 Central Information Display Monitor 10,25" 9266385
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Volkswagen Touareg PDC Parking Sensor Control Unit Module 7L0919283F
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Starter Motor Mercedes W204 W211 W212 OM642 Diesel Engine A0061514401
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Mercedes W169 W245 CD Player Radio Audio Head Unit A1698207589
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Part no. 7806987-5
BMW E60 LCI E90 E91 325d 525d Engine M57N2 197HP ECU Kit DDE 7806987 CAS3 + Key
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BMW 1 Series E81 E87 LCI Positive Battery Lead Distribution Box Cable Rear
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Mercedes W203 W204 Petrol Engine Starter Motor A0061510501
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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 .