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 F25 F26 Head Unit Basis Media Navigation System Controller DAB 6821164
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Volkswagen Audi Skoda Relay Unit Module 219 899574000 443951253AA
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Mercedes Viano W639 3.0 CDI OM642.990 204HP Engine ECU Kit A6421503277 Automatic
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Mercedes W211 SAM Module Fuse Box Relay Control Unit A2115456101
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Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + Key
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BMW E60 E90 335d 535d M57N2 Engine Control Unit Module ECU DDE 7805586 Automatic
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Dashboard Monitor BMW G30 G31 Onboard Central Display Screen 10,25" 6810511
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Kit DDE 7811151 CAS3 Key
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Mercedes W447 Glow Plug Relay A622900130
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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Audi RS4 B8 Body Control Unit Module ECU BCM 8K0907063DJ
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BMW 1 Series e87 ECU BODY CONTROL MODULE H2 61359131778 9131778
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Mercedes SLK R172 Fuse Relay Box Cover Cap Top Trim A1725400182
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Volkswagen Polo Mk5 6R Radio Multimedia Display Navigation Unit 6C0919603B
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BMW E65 E66 Steering Wheel Electronics Control Unit Module 6958039
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Mercedes W212 Front Bumper PDC Wiring Parking Sensor Loom Harness A2124403758
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VARTA RAC Accumulator Battery 85Ah 800A 12V RAC004
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Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S
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Mercedes W203 W211 C209 M271 Petrol Alternator A2711540802
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Mini Cooper One R50 R52 Petrol W10 Compact Alternator RTX 7515029
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BMW F25 F30 F31 20iX 320iX Petrol N20 184HP Engine Control Unit ECU DME 8610635
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BMW E82 Footwell Light Control Unit Module ECU FRM3R PL2 Lear 9224590
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Mini Cooper D R56 Diesel W16 1.6 109HP ECU Kit DDE 7809794 CAS3 Key Automatic
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Tailgate Control Module BMW X5 F15 F31 X2 F39 F45 Mini F60 Boot Trunk 8739659
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BMW E88 Footwell Light Module Control Unit ECU NSW PL2 FRM II 9175652
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Mercedes AGM Accumulator Battery 92Ah 850A 12V Varta A0019828208
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BMW 5 7 Series E61 E65 Module Control Unit Trunk Lid Rear Tailgate Lift 6939481
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BMW E87 E90 118i 318i N46 Engine Control Unit Module ECU DME 7561834 Manual
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Positive Cable BMW Z4 E89 Convertible Battery Plus Pole Power Red 9249103
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BMW E60 M5 Light Control Module Unit Lear LM E6X Lear 9112629
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Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922
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Part no. 9825936
Dashboard Monitor BMW F90 M5 G30 Onboard Central Display Screen 10,25" 9825936
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BMW 5 Series E60 E61 Wiring Loom Cable Seat Passenger's Side Left N/S 6939061
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Audi A6 C7 Front Lamp Headlight Control Module Unit ECU Controller 4H4907357E
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Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000511
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Mercedes CL203 CLC 180K 143HP M271.946 Engine Control ECU A2710108747 Manual
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Mercedes X156 Head Unit Radio Player Control Module Becker A2469005418
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BMW 7 Series E65 E66 E67 Steering Wheel Electronics Control Unit Module 6916692
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BMW E90 E91 E92 335i Petrol N54 ECU Kit Control Unit DME 7568842 CAS3 Key Manual
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Mercedes W203 Automatic Gearbox EGS Control Unit Transmission Module A0325454332
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BMW X3 X5 E53 E83 EWS III Central Locking Immobilizer Module ECU 6934529
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Part no. 9215184-1
BMW 1 3 E60 E87 E90 E91 Hands-Free Electronics Charging Module MULF2 9215184
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BMW E36 E39 E46 Engine Starter Electrical Earth Cable 1724740
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Engine Wiring BMW E60 E61 535d M57N Loom Harness Cable Module Automatic 7798049
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BMW X5 E53 3.0d M57N Wiring Loom Harness Engine Automatic Gearbox
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Audio Amplifier BMW F20 F21 LCI Mini F56 Top Hifi Harman Kardon Unit 6836346
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Jeep Grand Cherokee WK Commander XK Body Control Module BCM Unit P04692138AE
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BMW F30 330dX 258HP N57N Control Unit Module ECU DDE 8577835 Key FEM Automatic
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Air Conditioning Unit BMW F20 F30 F31 Mini F56 F60 Control Unit Module 9874187
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BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8506374 CAS3 + Key Manual
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Ford Transit Mk7 2.4 TDCI P8FA 100HP Diesel Engine Unit ECU AC1112A650BB Manual
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Platinum Prestige Accumulator Battery 90Ah 800A 12V 019E
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BMW E81 E87 E90 E91 E92 E93 Radio CD Player Professional Control Unit 9231931
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Audi A3 8P Multimedia Interface Unit Module Bracket Mount 8P0035785
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BMW X4 F26 Footwell Light Module FRM III Control Unit 6992954
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Audi A3 8V 2.0 TDI DFGA 150HP Engine Control Unit ECU 04L907309P Automatic
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Mercedes W205 Display Screen Instrument Cluster Speedo Meter Sat Nav A2059000146
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Gateway Module BMW F11 LCI Central Control Unit Lear ZGW-02 4SK 9380239
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BMW E66 E67 Airbag ECU Control Unit Gateway Module 6983067
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Renault Trafic 3 Vauxhall Vivaro B Radio Stereo Audio Head Unit 281151185R
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Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey SET X2 A0009822923
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Ford Transit Custom MK8 Body Control Module Unit BCM ECU BK2T14B476AU
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Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU ICM Control Unit 6882963
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Part no. 7639661
BMW F20 Alternator Engine Alternator Generator Denso 170A Petrol N55 7639661
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BMW 1 3 5 Series E60 E87 E90 E91 M47N2 120d 320d ECU Kit DDE CAS2 Key 7797217
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Mercedes W164 Sound Audio Amplifier Module Harman A2518706689
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Mercedes CLK C209 Body Control Module Unit A2098205926
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Part no. 6777435
BMW E53 E60 E61 E65 E66 E83 Power Steering Speed Sensor 6777435
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Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 6808571
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Ford Transit Mk6 Alternator Engine Generator Valeo 2C1T10300BA
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Part no. 6938287
BMW X5 E53 Light Check Module Control Unit ECU Lear LCM IV AUTO.LWR 6938287
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Engine Wiring BMW E92 E93 325i 330i N52N Cable Harness Gearbox Module 7555036
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Tuner Box Mercedes W213 W205 W222 Digital Audio Control Unit DAB ECE A2229005317
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BMW 5 Series E60 E61 530d M57N 218HP ECU Kit DDE 7795553 CAS2 Key Automatic
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BMW 1 3 Series E87 E90 116i 316i N45 Petrol ECU Kit DME 7557809 CAS2 + Key
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BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6939709
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BMW 3 5 X5 Series E46 E39 E53 M57 3.0d DDE 7789376 Engine Control Unit Module
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Mini Cooper R56 N12 1.6 120HP Petrol Engine ECU Kit DME 7573701 CAS3 + Keys
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD Player 9263459
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CD Changer Mini Cooper R50 R52 R53 6-Disc Multichanger with Magazine 6946989
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BMW 3 Series E93 LCI 320d N47N Diesel Engine Wiring Loom Harness 8515465
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BMW E81 E87 LCI E90 116i 316i 1.6 N45N ECU Kit DME 7567321 + CAS3 + Key Manual
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VW Volkswagen Golf 6 Gateway Control Unit Module ECU 1K0907530AD
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Part no. 7811151-4
BMW E60 LCI E90 325d 525d M57N2 Engine Control ECU DDE Kit 7811151 Automatic
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Part no. 3417167
BMW X3 Series E83 2.0d Diesel M47N2 Engine Wiring Loom Harness 3417167 3420893
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Part no. 80A907217A
Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A
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Part no. 6802943
Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943
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Mercedes W118 W177 W206 W247 Air Quality NOX Sensor A0009054807
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Part no. 9193753
BMW 1 Series E81 E87 LCI Boardmonitor Central Information Display 6,5" 9193753
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Mercedes W212 OM651.924 E220CDI 170HP Engine Control Unit Module ECU A6519003701
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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 .