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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BMW Z4 E89 Roadster 30i N52N 258HP Engine Control Unit ECU DME 7609656 Automatic
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BMW E90 E91 LCI 330d Diesel N57 245HP ECU Engine Kit DDE 8507136 CAS3 + Keys
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Audi A4 S4 B8 3.0 TFSI 333HP CAKA Quattro Engine Control Unit ECU 8K0907551
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BMW 7 Series E65 E66 E67 Diagnosis Interface Media System MOST Jumper 6917541
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Rain Sensor Audi Q3 RSQ3 F3 Front Windscreen 81A955555B
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BMW E90 320si 173HP N45 Petrol Engine ECU Kit DME 7560955 + CAS2 + 2 Keys Manual
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Fuse Box BMW F40 Mini F55 F56 Power Distribution Junction Relay Unit 9270356
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Tailgate Lift Module BMW F31 F36 Mini F60 Trunk Control Unit Rear ECU 7481616
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BMW E46 Inclination Indicator Alarm Tilt Sensor Module 6923215
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Telematics Module BMW F20 F30 Control Unit Bluetooth Combox ECU 9257151
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BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Left N/S 6954129
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Volkswagen Golf CD1 Antenna Amplifier Transmitter Receiver Module ECU 5WA035741B
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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Mercedes W212 Engine ECU Module Wiring Loom Harness Socket OM651 A6519003701
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Renault Master III DCI Alternator Support Bracket Mount 117103585R
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Mercedes W211 Door Module Front Right O/S Driver Control Unit ECU A2118208285
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Fuse Box Mercedes Sprinter W906 SAM Control Unit Module A9065452101
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VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA
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BMW Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + 2 Keys
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Mercedes-Benz E-Class A207 W207 Convertible Air Module System Control Unit
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BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513242 Automatic
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BMW F10 F11 535d N47S1 218HP Engine Control Unit ECU DDE 8572874 Automatic
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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VW Volkswagen Tiguan Mk2 T-Roc A11 Online Connect Bluetooth Control 5WA035284B
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BMW X5 E70 Front Bumper PDC Parking Sensor Wiring Loom Cable Harness 8039827
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BMW F20 F21 114i N13 102HP Engine Control Unit ECU Module DME 8610484 Manual
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Radar Sensor Mercedes W204 C117 Rear Blind Spot Right left N/O/S A0009053303
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Mini Cooper F54 F55 F56 F60 Radio CD Player Media Head Unit Alpine 9344044
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BMW F20 F21 F22 F30 F31 Radio Player CD Bluetooth Head Unit Control 9290992
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BMW F10 F11 X5 E70 Alternator Generator Unit Valeo 230A Diesel Engine 7807187
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Steering Lock Module Mercedes W204 W207 W212 Control Unit A2045458132
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Audi A3 8V 30 TDI DGTE Diesel Fuel Pump Module Control Unit ECU 3Q0906121B
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Audi A4 B8 A5 Q5 Sportback Alternator Generator 059903016E
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BMW 1 Series E87 Footwell Light Control Module Unit PL2 FRMFA Lear 6987997
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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BMW G01 G05 G20 G22 G30 G32 B57P Diesel Engine Starter Motor 8490093
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BMW Z4 E85 Roadster Cabrio Safety Information Module Airbag 6938264
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Mercedes-Benz S-Class W220 Tailgate Boot ECU Control Unit Module A2208201317
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Mercedes W203 W209 Relay Unit Module 2 Pins White Hella A0005461366
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Wiring Harness Mercedes W212 Dashboard Dash Wiring Cable A2124400613
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Mini Cooper One R55 R56 1 Radio Boost CD Player Head Control Unit 3448827
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MINI Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS3 + Key Automatic
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Mini Cooper D R55 R56 LCI R60 N47N Engine ECU Kit DDE 8516739 CAS3 Key Manual
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BMW E90 E81 E87 E85 Alternator Generator 150A N45 N46 Petrol Engine 7533270
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BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Manual
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549
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Audi S4 B8 3.0 TFSI CGWC 333HP Quattro Engine Control Module ECU Kit 8K5907551B
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Part no. 7565300-11
BMW E87 E90 E91 120i 320i N46 150HP ECU Kit DME 7565300 CAS3 + Key Automatic
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Navigation Headunit BMW F20 F21 F30 F31 LCI Radio Sat Nav Unit 8705960
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Mercedes W205 Harman Radio Stereo CD Player Audio Sat Head Unit A2059004236
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Mini Cooper D R60 ALL4 112HP 1.6 N47N Engine ECU Kit DDE 8517727 + CAS3 + Key
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VW Volkswagen Golf 6 1.6 TDI Diesel Engine Starter Motor 022911024A
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BMW 1 3 Series E81 E87 LCI E90 116i 316i N45N ECU Kit DME 7567321 + CAS3 + Key
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BMW X5 E53 6-disc CD Changer Control Unit Module With Magazine 6977766
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BMW MINI Cooper R50 W10 116HP Engine ECU Kit DME + EWS + 2 Keys 7520019 Manual
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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BMW F01 F02 Air Suspension Control Unit Rear Axle 6857942
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Mercedes-Benz W169 W245 A B 200 CDI Engine Control Unit Module ECU A6401507479
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BMW F20 M135i F30 335i N55 326HP Engine Control Unit ECU DME 7540686 Automatic
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BMW G30 G11 G12 Sunroof Sliding Roof Drive Unit Motor Actuator
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Volkswagen Golf 5 GTI 1K 2.0 TFSI 200HP Engine Ecu Kit 1K0907115F Key Ignition
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Audi S6 C6 Steering Column Wiper Switch Stalk Cruize Control 4F0953549A
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Mini Cooper S R56 LCI N18 1.6 184HP Engine ECU Kit DME 8610006 CAS3 Key Manual
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Audi S8 D3 Multimedia Display MMI Mechanism Carbon Fiber Look 4E0919603K
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Part no. 045903143E
VW Volkswagen Polo 9N 1.4 TDI Alternator Bracket Mount Carrier 045903143E
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65126939664 6939664
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Part no. A6461506378-1
Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902
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BMW Z4 E85 Roadster 2.5i N52 177HP ECU Kit DME 7571510 EWS + Key Manual
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Volkswagen Polo 6R 1.4 TDI CR 75HP CUSA Engine ECU Kit 04B907445 Key BCM Manual
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BMW X3 E83 Diesel Battery Positive Lead Red Cable Plus Pole Wire 3414880
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Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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Mercedes W177 Turbo Engine Wiring Warness Loom A2821503400
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Audio Amplifier BMW F30 F31 LCI F32 Top Hifi Harman Kardon Control Unit 9393186
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BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247
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BMW F46 220dX B47 190HP Engine Control Unit Module ECU DDE 8589145 Automatic
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Citroen Dispatch Alternator Generator Valeo 90A 12V 9655296080
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Audi A3 S3 RS3 8P Front Door Harness Cable Loom Passenger Side 8P4971036K
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BMW 3 E92 E92N LCI Amplifier Hifi Speaker System 9143162
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Vauxhall Opel Astra G Display Screen Multifunction Unit Dashboard 009133265
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BMW X2 F39 F40 F44 F45 F46 F52 Air Quality AUC Sensor 9872066
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Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950
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BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486
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Mini One R55 R56 N12 1.4 95HP ECU Kit Engine DME 7640005 CAS3 + Key Manual
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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Ford Transit Mk8 PhoneRadio Panel Media Head Unit Control Panel BK3T-18D815-BE
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BMW E46 Coupe Convertible Door Wiring Passenger Side Cable Harness Loom 6903096
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Mercedes W221 Air Suspension ABC Control Unit Module A2219009603
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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Battery Wiring Mercedes ML W166 Battery Negative Terminal Cable Wire A1665420518
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Mercedes W166 Radio Sat Nav CD Multimedia Control Central Head Unit A1669005420
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Part no. 3453634-1
Mini Cooper One R55 R56 R57 Radio Boost CD Player Head Unit 3453634
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Part no. 6948087
BMW Z4 E85 Airbag Module Sensor B-pillar Left N/S Control Unit Air Bag 6948087
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Part no. 8W0959593E
Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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BMW 1 Series E81 Footwell ECU Light Control Module MAX Kuester FRM3R PL2 9224599
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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 .