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. 8E1971035DF
Audi A4 Door Harness Loom Cable Wiring Front Left Right N/O/S 8E1971035DF
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Audi A5 8T Stereo DAB CD Player Radio Receiver Head Unit 4G0035061N
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Audi A6 C7 Central Gateway Control Unit Module Relay ECU 4G0907468AC
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655N
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BMW E46 E53 Side Air Module Control Unit ECU Module 6933238
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BMW 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6957140
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Mercedes CLK A209 Convertible Antenna Amplifier Module A2098200789
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VW TOURAN 1T Steering Angle Steering Wheel Column Control Module ECU 1K0953549AF
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Mercedes ML W163 Transfer Box Control Unit Module ECU A1635457932
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BMW G20 G80 G82 Amplifier Harman Kardon Booster Audio ECU Unit Module 5A38AB8
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Audi Q7 4L Power Supply Battery Control Module Unit 4L0915181
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VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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Audi A7 4G PDC Sensor Wiring Loom Harness Cable Front Bumper 4G8971095C
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Engine Wiring BMW F20 F30 LCI 118d 318d 120d 320d B47 Loom Harness Cable 8595284
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BMW X3 F25 Footwell Light Control Unit Module ECU FRM III TEMIC 6823594
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BMW 5 F10 F11 Battery Cable Wiring Harnes Lead Positive Underfloor 9150990
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Audi Q5 FY Crash Impact Sensor Unit Module Left Right N/O/S 4N0959651D
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Alternator Generator Mercedes W207 W212 OM642 Diesel Engine 200A A0009062722
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V9 Lear 9247386
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Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9268752
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Manual
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Mini Cooper F54 F55 F56 F60 HSD Line Cable Wire HU - CID 9314634
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Adblue Module Mercedes W205 W222 C253 Exhaust Gas Control Unit ECU A0009004810
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Mercedes CL C215 W220 Sam Control Module Fuse Box Unit A0345459432
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BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Manual
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Volkswagen Golf Mk6 VI Air Module Control Unit ECU 5C0959655B
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Tuner Box Mercedes W207 W212 W218 Digital Audio Control Unit DAB ECE A2229002710
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Mini Cooper S R56 LCI N18 1.6 184HP ECU Kit DME + CAS3 + Key 7648190 Manual
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BMW X3 Z4 Series E83 E85 E86 Radio Business CD Player 9205278
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Merceedes W211 E280 CDI OM642.920 Engine Control Unit ECU Kit A6421509177 Key
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BMW X3 F25 20dX 190HP B47 Engine Control Unit Module ECU DDE 8588946 Automatic
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Mercedes W203 W210 W220 DIesel Glow Plug Relay Module Unit A0285454032
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Audi Q7 4L Radio Multimedia Receiver Control Module Unit 4E0035541S
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Mini Cooper R56 Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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MINI Countryman R60 Control Unit Fuse Distribution Box SPEG High 9811672
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Engine Control Unit BMW F10 F30 320d 520d N47N 184HP ECU DDE 8518423 Manual
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VW Volkswagen Fox 5Z 1.2 CHFB Engine Wiring Loom Harness Cable Loom 03D971595CJ
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4 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
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BMW F20 F23 F11 N55 Engine Wiring Harness Motor Adapter Sensor System 2 7592529
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BMW E60 E61 LCI 550i N62N 367HP Engine Unit Module ECU DME 7577664 Manual
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Mini Cooper F55 F56 Navigation Sat Nav NBT HU DAB Head Unit High 9365758
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Mercedes Vito W639 Sprinter W906 CD Audio Stereo Radio Head Unit A9068201186
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Air Module Sensor BMW Z4 E85 E64 B-Pillar Left N/S Crash Module ECU 6962887
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BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 Lear 9312602
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BMW F30 F31 F32 N20 Engine Gearbox Module Wiring Cable Loom Harness 7634059
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BMW 1 3 Series E81 E87 E90 E91 LCI N47 Diesel ECU DDE engine control 8506375
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Mercedes ML W166 C216 W221 Auxiliary Additional Generator Battery A0019822708
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Head Unit Mercedes CLA C118 W907 Sat Nav Radio Media Player Unit A2479006213
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Adblue Module BMW F40 SCR Control Unit ECU 9454320
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Mini Cooper R57 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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Mini R56 LCI One 55kW N16 1.6 75HP Engine ECU Kit DME 8617050 CAS 3 + Key
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BMW E87 LCI E90 E91 118i 318i Petrol N43 143HP ECU KIT DME 7599881 CAS3 + Key
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Mini Cooper One R55 R56 R57 Engine Alternator Generator Petrol 120A
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Volkswagen Touran Engine Starter Motor 02M911023N
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Skoda Octavia II Engine Bay Fuse Box 1K0937125A
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BMW G20 Axle Differential Module Control Unit ECU 5A11E72
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BMW F45 i8 Mini F60 B38 B38X Hybrid Engine Alternator Generator 7649390
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PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 9117847
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CD Player BMW E81 E82 E87 E88 E90 E91 E92 Radio Professional Head Unit 9258167
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Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
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Iveco Daily 2.3 Diesel Engine F1AE0481 Unit Module ECU Manual 504121602
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Mini One R56 LCI R60 N16 98HP Engine Control Unit ECU DME 7619335 Manual
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Audi A6 S6 RS6 C6 4F Convienience Comfort Module Unit ECU 4F0910289N
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Audi Q7 4L Air Suspension Adjustment Module Control Unit 4L0907553E
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Mercedes R171 Door Control Module Front Right O/S A1718206226
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Ventilation Valve BMW F90 M5 F91 M8 S63M Fuel Tank Pipe Cyl. 5-8 7852338
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BMW E87 E90 E91 118d 318d M47N2 122HP Engine ECU KIT DDE 7798179 CAS2 + Keys
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Mercedes W176 W246 Parktronic Parking Control Unit Module ECU A2469005010
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Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332
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BMW F07 GT Self-Levelling Suspension Control Unit Module Bracket Holder 6792443
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Mercedes-Benz W169 W245 CD Player Radio Audio Head Unit A1698204789
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BMW F10 Tailgate Module Rear Boot Trunk Lid Control Unit ECU 7317512
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Mercedes W202 A208 C208 W208 W210 Fuse Box Relay Control Unit A0005400072
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BMW X1 E84 ECU Footwell Light Module BASIS PL2 FRM3R Lear 9230451
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BMW 3 5 X3 Series 4 E46 E60 E65 E83 M54 Petrol Starter Motor 2354693
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Mercedes W176 W246 Front Door Module Control Unit Module Right O/S A1669004302
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Renault Trafic 3 R9M 450 1.6 DCI Diesel Engine Unit ECU 237103984R Manual
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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Engine Starter BMW F20 M135i F30 335i F32 435i F80 M3 F82 M4 Motor Start 7631558
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BMW X5 E53 Navigation System Sat Navi TV Video IBUS Module Unit 6968041
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BMW F01 F07 530d 730d N57 Engine Control ECU Kit DDE 8511372 CAS4 Key Automatic
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Mercedes-Benz W221 Distronic Intelligent Cruise Control Radar Unit A2129004603
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BMW X3 F25 Tailgate Trunk Lid Wiring Harness Rubber Cover Right O/S 9285768
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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 .