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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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit Engine DME 7640005 CAS3 + Key Manual
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BDC Module Mini Cooper F56 Body Domain Controller Unit Fuse Relay Module 8796101
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BMW F87 M2 N55 Engine Wiring Loom Harness Injection Valve Ignition 8073593
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit Engine DME 7580279 CAS3 Key Manual
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Audi Q3 8U Boot Tailgate Control module Unit 8U0959107
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Audi S6 C6 Steering Wheel Multifunction Wiring Loom 4F0971589A
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BMW E81 E87 E90 Hands-Free Electronics Charging Module MULF 6938943
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Remote Key Audi A4 S4 B7 8E Radio Alarm Key Fob Opener Button 8E0837220Q
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Mini Cooper One R56 Footwell Light Module Low EKS ECU PL3 FRM3R 3455895
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045454501
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BMW F20 F21 F30 F31 Radio Player CD DAB Head Unit Audio Player 9335347
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Engine Control Unit BMW F30 F31 N57N 330d 258HP ECU DDE 8572439 Automatic
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Mini Cooper R55 R56 Harman Becker Hi-Fi Audio System Amplifier 3450588
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Mercedes V177 C118 W247 Fuse Box Relay Control Unit Module A1775404507
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BMW F10 CAS4 Control Unit Module 9282118 61359282118
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BMW F20 F30 LCI Harman Head Unit High 2 Media Sat Nav Radio NBT EVO HU 6822066
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Engine Wiring BMW i3 I01 Hybrid Rex Sensors Cable Loom Harness 7647591
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BMW E81 E87 E90 LCI Professional Navigation Car Radio Player CIC 9273188
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Mercedes Sprinter W907 W910 Head Unit Multimedia Controller Module A9079008805
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Vauxhall Opel Insignia A Diesel Glow Plug Wiring Loom Cable Wiring 55580911
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BMW E60 E90 N52 325i 525i ECU Kit Control Unit DME 7577968 CAS2 Key Automatic
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BMW F06 F12 F13 Central Information Display Screen Monitor 10" 6801299
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Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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Audi A3 8V Control Unit Central Door Locking Module ECU 5Q0959393
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CD Player BMW E60 E61 E63 M-ASK M-Audio Radio System Controller 6965046
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Engine Alternator BMW F20 F21 F30 LCI Generator Lucas 170A N13 Petrol 7605060
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Parking Module Mercedes W169 W245 PDC Distance Control Unit Sensor A1695400762
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Audi A4 B8 8K A5 8T Sound System Audio Amplifier Amp Unit 8T0035223AB
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Starter Motor BMW G20 G21 G30 G31 G32 GT G11 B57 3.0 Diesel Engine 8589891
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BMW X3 F25 X4 F26 Integrated Supply Module 8645515
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Mercedes W251 Fuse Relay Electrical Box Housing Cover A2515400524
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BMW 5 Series E39 Right O/S Air Box Pollen Microfilter Service Cover 8379626
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Ford Mondeo Mk4 Air Module Control Unit ECU 7S7T-14B056-AD
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Parktronic Mercedes Sprinter W901 W903 Front Bumper PDC Wiring Loom Harness
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BMW E60 E61 E63 E85 Air Module Control Unit Module ECU ACSM 9172018
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Mercedes X156 GLA200 M270.910 156HP Engine Control Unit ECU Kit A2709002900 Key
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Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803
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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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Air Bag Module BMW E65 E66 Control Unit ECU Gateway Airbag Lear 6960943
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Mercedes CL C215 W220 Sam Control Module Fuse Box Unit A0345459432
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BMW F22 F23 F30 F31 LCI 218i 318i B38 136HP Engine ECU DME 8662411 Manual
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Mini Cooper S R52 R53 W11 Engine Wiring Loom Harness 7541073 Automatic
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Mercedes W169 W245 Hizpo Head Unit Navigation Multimedia Screen 7" GPS Android
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Mercedes W447 114CDI SAM Comfort Control Unit Module Box ECU A4479009509
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Audi A3 8P Alternator Main Cable Wiring Harness Loom 1K0971349FL
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BMW E93 LCI ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9298947
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AUDI A8 S8 D3 Reversing Camera Control Module Rear View Unit ECU 4E0910441
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Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P
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On Board Monitor BMW E60 E63 Navigation Display Screen 6,5" 6952327
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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003100
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BMW E60 E63 E64 Body Control Module ECU Control Unit 6969011
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BMW E91 NSW PL2 FRMII Lightning Control Unit Module (LCM) 9159811
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Seat Leon Cupra 5F Suspension Control Unit Module ECU 5Q0907376B
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Ford Transit Mk8 Fuse Box Power Distribution Relay 2.0 Diesel KK3T-14D068-JD
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BMW X6 F16 Multimedia TV Tuner Receiver Control Module Unit ECU 6820701
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BMW F22 F30 F32 220i 320i 420i Petrol N20 184HP ECU Kit DME 8631725 + Key + FEM
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BMW X3 F25 ECU ICM Control Unit Air Module Bag Safety 6860962 0265020494
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Mini Cooper D R55 R56 LCI N47N 1.6 112HP Diesel ECU Kit DDE 8519663 CAS3 Keys
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VW Volkswagen Transporter T5 Magnetic Clutch Relay Unit Black 454 7E0919506
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Mercedes W221 Safety Module Air Bag SRS Control Unit ECU A2218708292
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BMW E46 M47N M57N Alternator Generator 150A Valeo 7789980
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BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224589
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Mercedes A209 Fuse Box SAM Control Module Relay Box A2095451701
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Mercedes W203 C220 CDI 646.963 150HP Engine ECU Kit A6461500091 + Key + Lock
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BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176824
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Ford Transit Mk7 Relay 5-Pin Black Unit FoMoCo 6G9T14B192DA
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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 .