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. 04L903018A
Audi A4 B9 A5 F5 Q5 FY A6 C8 A7 C8 Alternator Generator Valeo 04L903018A
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Tailgate Module Mercedes W204 W212 Boot Lid Locking ECU Control Unit A2128203542
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Audi Q3 8U 2.0 TDI 140HP CFFB Quattro Engine Control Unit ECU 03L906018CN Manual
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BMW 1 3 Series E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936653
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BMW F01 F02 LCI F07 GT Control Unit Module Voltage Transformer VSU400 9247159
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Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226
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BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic
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BMW X3 E83 Light ECU Control Module Unit Lear LM MAN.LWR 3420786
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Battery Lead BMW E81 E87 Battery Cable Negative IBS 9134855 61129134855
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BMW X5 E53 3.0d M57N Wiring Loom Harness Engine Automatic Gearbox
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Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B
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On Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen Display 8,8" 1138730
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Audi A6 C7 Multimedia Radio CD Player Head Unit 4G0035192H
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Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800
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Audi A1 8X BCM Body Control Module Power Supply Unit 8X0907063AB
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BMW E60 E87 E90 E91 Hands Free Electronics Charging Module MULF2 9215184
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Ignition Harness BMW F10 F12 F07 GT Petrol N63 Engine Ignition Wiring 7614896
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Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J
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Mercedes W205 Front Air Module SRS Control Unit ECU A2059009427
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Mini Cooper One R50 R52 Petrol W10 Compact Alternator RTX 7515029
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Control Unit Seat Ibiza 6J VW Polo 6C 6R Air Module Unit ECU Bosch 6C0959655J
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Seat Module BMW F20 F30 F32 F33 X1 F48 X5 F15 Front Control Unit ECU 9459681
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Mercedes W221 Front Door Control Module Unit Left N/S ECU A2218706586
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PDC Module Mercedes W176 W246 Parking Assist Distance Control Unit A0009003210
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Gateway Module Mercedes W211 Control Unit ECU A2115408545
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BMW X5 E53 3.0i M54 1,4KW Starter Motor 7501738
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BMW 3 Series E90 E92 E93 M3 LCI Control Unit For Fuel Pump ECU 7842024
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Mercedes W221 Parking Aid Sensors Control Unit Module A2215407545
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Starter Motor Ford Transit 2.4 TDDi Diesel Engine 1S7U11000BC
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BMW 3 5 7 X5 Series E38 E39 E46 E53 GPS Navigation System Computer Unit 6908529
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VW Volkswagen Golf 6 Gateway Control Unit Module ECU 7N0907530C
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Mercedes X218 CLS350 Airmatic Suspension Self Leveling Module A2189008903
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BMW 3 5 7 Series F30 LCI 330e G11 G30 Fuel Pump Control Unit Module 7439743
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Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BB
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Audi A5 8T Audio Amplifier Sound Booster Control Unit Module Unit 8T0035223S
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BMW X1 Series E84 20i N20 184HP ECU Engine Kit DME 8610678 CAS3 + Key Manual
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BMW X5 E70 X6 E71 X6 E72 Map Fuse Box Grouping Diagram Card 9177784
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Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator A0051511301
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VW Volkswagen LT 35 2.5 TDI AVR 109HP Engine ECU Kit 074906018BK Manual Gearbox
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Mini Cooper R55 R56 N12 DME Petrol Engine Control Unit ECU 7600020 Automatic
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Audi A4 B9 Antenna Amplifier Aerial Control Module Unit 4M0035456A
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BMW E81 E87 E90 E91 E92 LCI Radio CD Professional DAB Unit 9289118
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Head Unit Mercedes C205 Radio Player USB Sat Nav Harman A2059008430
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BMW F10 520d F20 120d F30 320d N47N 184HP Engine Unit ECU DDE 8578995
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Ford Transit Connect 1.8 TDCi Battery Positive Cable Clamp Wiring 2T1T14A280CG
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Mercedes Vito W447 Rain Light Sensor Control Unit Module A4479000601
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Mercedes W906 Positive Battery Cable Wiring Loom Harness A9064408234
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BMW E90 LCI Footwell Light Control Module LCM LED Basis 9240530
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Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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Mercedes W164 Air Module Control Unit SRS Sensor ECU Bosch A1648205585
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BMW F22 F30 F32 220i 320i 420i Petrol N20 184HP ECU Kit DME 8631725 + Key + FEM
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Mercedes W124 M103 Alternator Generator BOSCH 14V 70A A0131541002
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Amplifier DAB Mercedes W176 W204 W212 Control Unit Module ECU A1669007616
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Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1699002000
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BMW E81 E87 LCI E90 N43 116i 316i 2.0 122 HP Engine Unit ECU DME 7621178 Manual
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Parking Module Audi A4 B8 A5 8T PDC Sensor Control Unit 8K0919475R
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Mercedes W140 ABS Control Unit ASR + PML Module ECU A0185459132
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Part no. 9226711
BMW E60 E87 E90 E91 Hands Free Electronics Charging MULF2 Module 9226711
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VW Polo 9N MK4 Fabia II 1.4 TDI BMS Alternator Mount Support Bracket 038903143AG
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Part no. 3442133-2
Aerial Roof Antenna Mini R56 Base Unit Module R55 R57 3442133
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BMW E60 E81 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 6943834
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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BMW E34 E38 E39 Relay Make Contact Pink 8365326 0332019168
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BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035
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Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500133
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Trunk Lid Module BMW F40 F90 M5 G20 G30 Power Tailgate Control Unit 9451484
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Headlight Module BMW F83 M4 F33 LCi FLE2 Front Lights Right Left N/O/S 8494843
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Part no. 7848603
Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603
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BMW F10 F20 F22 F30 Navigation Sat Nav Head Unit High 9387565
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM LR01 ECU 9324784
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BMW F10 F20 F30 Control Unit For Fuel Pump Module 7411595
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Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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BMW 5 6 Series E60 E63 On-board Navigation Display Monitor Screen 6,5" 6957342
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Mercedes W221 Telephone Bluetooth Control Module A2218708685
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BMW F10 F11 Gateway Module ECU Control Unit LEAR ZGW-02 Mid Plus 9284422
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VW Volkswagen Touran Golf Polo Interface Module Multimedia Control 5N0035342B
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CD Changer BMW X5 E53 Z4 E85 6 Disc Control Unit Module With Magazine 6946990
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Mini F55 F56 F57 Integrated Supply Module Electrical Control Unit Module 8486997
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BMW X5 E53 6-disc CD Changer Control Unit Module With Magazine 6977766
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BMW E81 E87 E90 E91 LCI E92 E93 CD Radio Business Unit 9249404
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Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603
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Mercedes W176 A200 CDI BlueEFFICIENCY OM651.901 Engine Module ECU A6519007600
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BMW 5 Series E60 Light Control Module Unit Lear LME6X MAN. LWR (LCM) 6943284
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Audi A5 8T Door Module Control Unit ECU Front Driver's Side 8T0959793J
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Mercedes W205 Air Module Control Unit SRS ECU A2059002141
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Mercedes SL400 R231 276.825 333HP Engine Control Unit ECU A2769007300 Automatic
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Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
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Audi A4 B8 A5 8T Front Lamp Headlight Range Control Module 8K5907357B
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Mercedes-Benz E-Class W210 S210 Battery Cable Box Connector Right A2105460241
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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 .