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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Peugeot 206 1.6 NFU TU5JP4 109HP Engine Control Unit ECU 9643218980 Manual
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Audi Q7 4M Positive Battery Terminal Distribution Box 4M0941823E
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Seat Ibiza 6J Cupra Sound Control Module ECU Unit 6P0907159
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VW Volkswagen Phaeton Mk1 Mulitmedia Audio Sound System Amplifier Unit 3D0035465
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Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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VW Volkswagen Touareg 7L Air Module Control Unit Crash Impact Sensor 7L0959655A
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Audi A4 B8 3.0 TDI CAPA Diesel Alternator 04L903017A
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Renault Master II Trafic II 2.5 dCi Diesel Engine Starter Motor Valeo 8200634602
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8518424 + FEM + Key Manual
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BMW F30 320iX xDrive 184HP N20 Engine Control Unit ECU DME 8606306 Manual
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Mercedes-Benz S-Class W221 Trunk Closing Hydraulic Pump Cover Cap A2218000235
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Audi TT 8N Alternator Main Cable Wiring Harness Loom 8J0971349CF
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Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802
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Audi A4 B9 Rear Right O/S Door Wiring Loom Harness 8W0971687BR
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Distribution Box BMW X3 G01 X4 G02 Power Junction Point B+ Control Rear 6841701
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Volkswagen Golf Mk7 Audi A3 8V Alternator 14V 140A 1.5 TSI 05E903026B
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Fuse Box Peugeot 207 308 Battery Terminal Control Unit Module 9636079380
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Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049003609
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BMW E46 E60 E61 E65 E83 E53 M57N Engine Starter Motor 63223537
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BMW 3 5 7 X5 E38 E39 E46 E53 6-disc CD Changer Without Magazine 8377049
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Mini Cooper S F55 F56 F57 F60 Valvetronic Wiring Cable Loom Harness 8678960
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Mercedes W204 W207 W212 W221 Starter Motor A6429060900
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Antenna Wiring Mercedes W211 Rear End Antenna Wiring Harnes A2114409906
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BMW AGM Exide Car Battery 12V 60Ah 660A 7604799
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BMW E60 E61 525i Petrol N52 218HP ECU Engine Kit DME 7555361 CAS2 + Key Manual
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Mercedes W213 Engine Wiring Harness Cable Loom A2741501802
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BMW F10 F11 LCI 520d B47 190HP Engine ECU Kit DDE 8589141 CAS4 + Key Manual
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BMW F06 F10 F11 F12 F13 Wiring Harness Cable Engine Ignition Module N55 7605076
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Mercedes X253 Electrical Wiring Harness Cable Hybrid A2135400329
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Mercedes C118 W177 W243 W247 Centre Console Dual USB-C Socket Ports A2478207502
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Porsche Macan 95B Front Door Window Lifter Regulator Right O/S 95B837462B
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Porsche Cayenne 955 Telematics Bluetooth Telephone Module Unit 95504490277
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Volkswagen VW New Beetle 1.9 TDI BSW Engine Unit ECU Kit 038906019NN Key Manual
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Audi Q3 8U Tailgate Lift Boot Lid Control Unit Module Trunk 8U0959107A
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BMW 3 Series E46 M54 Engine Gearbox Module Wiring Cable Loom Harness 7506793
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Mercedes-Benz E W210 Estate CDI Gearbox Control Module Unit ECU A0305454932
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BMW 5 7 E60 E61 E65 M57N M57N2 Compact Alternator Generator VALEO 170A 7802929
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BMW 7 Series E65 Door wiring harness mod. carrier rear right O/S
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Mercedes R231 Seat Memory Control Unit Module Front Right A2219005404
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Engine Wiring BMW F10 F31 F32 N20 Engine Sensor Module 1 Harness 7641652
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Mercedes W221 S500 OM273 Fuse Relay Box Module Housing Cover A2215400224
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VW Volkswagen Polo 6R Multimedia Electronic Control Interface Module 5N0035342E
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VW Volkswagen Touran TDI Diesel Engine Control Unit ECU 03G906021MP
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Mercedes W204 Dashboard Stereo Display Screen Sat Nav Multimedia A2049005205
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Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205
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Audi A5 8T A4 B8 8K BCM Body Control Unit Module Power Supply 8K0907063B
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BMW 3 E46 Petrol M52 M54 Engine Ignition Wiring Loom Harness Cables 1440006
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BMW E81 E88 E90 N43 118i 318i 143HP Engine Control ECU DME 7621178 Automatic
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Audi A6 C7 CD Player Radio Stereo Head Unit MMI NAVI 4G0035193C
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Display Screen Citroen Dispatch Dashboard On Board Dash Monitor 9809842880
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Radar Sensor Mercedes W177 W205 W213 Distronic Control Unit Module A0009051912
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BMW X6 71 Amplifier HiFi Stereo System Sound 9312471
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Citroen Relay III Alternator Generator Valeo 9805343480
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BDC Module BMW X5 F15 Body Domain Controller BDC Unit 9355750
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Skoda Rapid NH1 1.4 TSI Petrol Alternator Generator Bosch 04E903021M
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Mazda 6 GJ Engine Starter Motor 2.2 Diesel M001T81582
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Mercedes W205 W213 63 AMG Starter Motor Wiring Cable Harness A2055403512
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Audi A3 8V Door Wiring Harness Loom Rear Left Right N/O/S 8V5971687Q
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Mercedes E-Class S211 Touring Bracket Holder Control Units A2115453340
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Peugeot Expert Citroen Jumpy Negative Battery Terminal Cable Wiring 1486455080
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Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382
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BMW F20 F30 F32 120dX 320dX 420dX 184HP N47N Engine ECU Kit DDE 8582155 FEM Key
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BMW E60 520i M54 170HP Engine Control Unit ECU Kit DME 7541335 CAS2 Key Manual
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 136HP ECU Kit A6519009402 Key
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BMW F13 Front Seat Control Module Unit ECU Left Right N/O/S 9313992
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PDC Module BMW E38 Parking Assist Distance Control Module Unit ECU PDC 8372271
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BMW E38 Radio Business RDS Cassette Audio Player Head Unit 8379279
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Peugeot 3008 1.6 HDI T84 DV6-C Engine Control Unit Module ECU 9675391480 Manual
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Mercedes E-Class S211 Touring Positive Battery Terminal A2115456540 A2115450403
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Mercedes C140 W202 Engine Cooling Radiator Fan Control Unit Module A0165459632
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AUDI A8 4E S8 D3 CD Changer Control Module 6 CD unit 4E0057110C
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Mercedes A B W169 W245 M266 Petrol Engine Wiring Harness Loom A2661502933
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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Mercedes W203 Fuse Box Rear SAM Module Relay Control Unit A2035450701
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801
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Audi A4 B8 3.2 FSI Alternator Generator 06E903016S
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BMW E82 E88 E90 LCi Switch Cluster Cruise Control Stalk Unit 9110882
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BMW Z4 E85 E86 Battery Holder Hold Down Bracket 7572873
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Mercedes GLC 300e X253 Electric Drive Ground Earth Line Wire A2134400200
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Battery Cable Citroen Relay Peugeot Boxer Positive Wiring Harness 1362688080
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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 .