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 W169 W245 A150 B150 M266.920 95HP Engine ECU Kit A2661530391 Key Lock
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Audi Q2 GA Air Module Control Unit 5QF959655BQ
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BMW F20 F21 F30 LCI F32 Engine Starter Motor Diesel B37 B47 8583451
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
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Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
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BMW Z4 Series E89 Roadster Boardmonitor Central Information Display 9210504
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Mercedes C205 Keyless Go Module Unit Bracket Mount Holder Support A2055455440
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BMW E38 Basic Body Control Unit Module General Junction Box ECU GM III 8378633
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BMW Z4 Series E85 E86 Body Control Unit Module GM5RD 12V 6931707
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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BMW 1 3 5 7 Series E60 E61 E65 E81 E87 E90 Trailer Towing Control Module AHM 4R
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BMW E46 Led Indicator Side Light Signal 7165845
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Ford Transit MK7 CD Player Radio Stereo Audio Head Unit 8C1T18C815AD
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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 + EWS + Key
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Control Unit BMW F01 F10 F20 F21 F30 F87 Integrated Supply Module Unit 7591534
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Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118702889
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BMW X5 E70 Footwell ECU Light Control Module Xenon FRM II Lear 9170453
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Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R
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Tuner Box Mercedes W213 W205 W222 Digital Audio Control Unit DAB ECE A2229008911
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BMW E39 E46 Active Parking System Control Module Unit ECU PDC 6904023
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BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Manual
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BMW Mini Cooper One R50 R53 Aerial Base Roof Antenna 6920279
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BMW 3 Series F30 F80 M3 Boot Trunk Lid Tailgate Wiring Loom Harness Cable Set
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BMW X6 F16 Bumper PDC Wiring Loom Parking Sensor Rear Cable Harness 9367702
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BMW 5 7 E60 E61 E65 M57N M57N2 Compact Alternator Generator Valeo 170A 7802929
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BMW G20 Starter Wiring Battery Alternator Cable Harness Loom 8483814
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BMW X5 E53 3.0d Diesel M57 Alternator 150V 7792092
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BMW E60 E87 E90 120d 320d 520d M47N2 ECU Engine Control Kit DDE 7801711 CAS2 Key
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BMW F20 118d F30 318d 143HP N47N Engine ECU Kit DDE 8576341 + Key + FEM Manual
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Xenon Adaptive Headlight Module BMW F22 F23 Control Unit Driver Module 7363090
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Citroen Berlingo Module Control Unit Brown 12V 20A 4 Pins 8200263342
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Audi A8 D3 PDC Parking Distance Sensor Control Unit Module Rear 4E0919283C
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Mercedes W639 113 CDI 651.940 136HP Engine Module ECU Kit A6519009302 Key Lock
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Audi A8L 4H Air Suspension Control Unit Module ECU 4H0907553E
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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Engine Wiring BMW Z4 E85 E86 N52 Cable Loom Harness 7556886
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Starter Ford Mondeo MK3 2.0 TDDi Mk4 2.0 Tdci Diesel Engine Starter Motor
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Seat module BMW G11 G20 G30 G01 G02 Seat Control Unit Module ECU 9891562
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Headlight Control Module Mercedes W207 W212 Unit A2129008224
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Mercedes W166 Switch Rotary Selector Controller Navigation Radio A1669003501
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Body Control Module BMW X3 F25 ECU Junction Box JBBFE III 3 Lear 9304587
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Mercedes W176 W242 W246 Alternator Generator Bosch M270 Petrol A0009061903
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Mini Cooper Cabrio 3 R57 LCI Light Module High EKS ECU PL3 FRM3R 3456395
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BMW X5 E53 3.0d M57N 218HP ECU Control Unit Module DDE 7800131 Automatic
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Mini One R56 LCI N16 1.6 98HP Engine Control Unit Module ECU DME 8617050 Manual
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BMW 1 Series E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240523
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Mini Cooper D R55 R56 LCI N47N 112HP Diesel Engine ECU Kit DDE 8512415 CAS3 Key
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BMW X5 X6 Series E70 E71 Navigation System Car Computer CIC 9222855
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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Keyless Entry BMW F40 G20 G21 G30 G31 Comfort Access Antenna 5A5D3C0
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Volkswagen Golf Mk7 BCM Body Control Module Unit ECU 5Q0937084S
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BMW E70 LCI F10 Alternator Generator Engine 180A Valeo N57 Diesel 7803724
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BMW Z4 E89 sDrive 20i N20 184HP Petrol Engine ECU Kit CAS3 + Key 7645762 Manual
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Audi A8 4E S8 D3 Battery Voltage Control Module 4E0910181C 4E0915181C
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Mercedes Vito W447 Door Module Front Right O/S Control Unit ECU A4479008006
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Accelerating Sensor BMW E60 E61 E63 E64 E65 E70 Control Unit Module 6752866
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Mini Cooper One R50 R52 R53 JCW Fuse Relay Electrical Box Housing 6906598
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Alternator BMW G20 G30 G14 B47 B48 B58 B46 Alternator 180A 14V 8634166
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Audi TT FV Air Module ECU Control Unit Crash Sensor 5Q0959655P
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Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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Seat Module BMW E60 E61 E65 E66 Front Control Unit ECU 6927313
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Mercedes Sprinter W906 Door Module Front Right O/S Control Module A9069006100
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BMW E60 E61 E65 E87 E90 Trailer Towing Control Module AHM 4R 9186177
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BMW X5 E70 X6 E71 Body Control Unit Module Junction Box ECU 9247465
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Peugeot 307 Fuse Box BSM Control Unit Module 9664055780
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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BMW 5 6 E60 LCI E63 Radio CHAMP Business Player System Controller 9192680
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BMW Mini Cooper S R55 R56 Automatic Gearbox ECU Control Unit EGS Module 7600562
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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Seat Ibiza 6J Door Wiring Rear Right O/S Harness Loom Cable 6J4971161M
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BMW G11 G12 G30 G32 G14 Starter Cable Alternator Cable Starter-Base B+ 8595355
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100
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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 .