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 1 3 Series E87 E90 116i 316i N45 Petrol ECU Kit DME 7557809 CAS2 + Key
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Vauxhall Corsa D Air Module Control Unit ECU 13256905
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Mercedes VRLA / AGM 12V Accumulator Battery 95Ah 850A A0055411001
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Mercedes W907 Wiring Cable Harness Bracket Mount Trim A9075463500
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Mercedes R171 W203 W204 W212 Engine Control Unit ECU Pin Bracket Set A0009930860
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BMW F20 F21 118d N47N 143HP Engine ECU Kit DDE 8517874 Key FEM Lock Automatic
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Mercedes ML W164 OM642 Diesel Engine Wiring Loom Harness Cable A6421507733
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BMW Mini Clubman R55 High SPEG PL3 H5 Fuse Distribution Box 3455531
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Audi A3 8V Microphone Cable Wiring Loom Cable Harness 8X2035711C
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BMW X6 E71 Antenna Amplifier Diversity Control Unit Module 868 MHZ 9130160
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Head Up Display BMW F45 F46 Hud Project Dash Screen Control Unit 9389363
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BMW E90 E91 E92 Professional CCC Navigation System Controller 6949171
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Mercedes CLC CL203 C160 122HP 271.921 Engine Unit ECU A2711539879 Automatic
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Central Control Unit DAF FT85 CF430 Electronic Module 1339650 Manual 428 HP
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BMW 7 Series 1 E65 E66 Battery Cable Positive Plus Pole 6904905
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Mercedes Vito Viano W639 Battery Cable Positive Wire Lead Terminal A6395400830
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Renault Trafic Display Screen Sat Nav Navigation Unit Dashboard 259151852R
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Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
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Audi A3 8P Front Door Wiring Right O/S Harness Loom Cable 8P4971030F
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Seat Module Mercedes W205 W253 Memory Control Unit Driver's Side A2059007727
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BMW 5 Series E61 Light Control Module Unit Lear LME6X Ohne LWR 6943288
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Audi Q2 GA 35 TDI DTTC 150HP Quattro Engine ECU Kit 05L907309B Ignition + Key
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Keyless Go Module Mercedes C118 W177 W247 ECU Entry Control Unit A1679003604
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Audi A1 8X Stereo Sat Navi Navigation Radio Head Unit 8XA035192F
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Comfort Unit Audi A4 S4 B8 Q5 8R Central Control Module BCM Unit ECU 8K0907064GH
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BMW E87 LCI E90 118i 318i N43 143HP ECU Kit DME 7579142 CAS3 Key Automatic
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SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305
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Skoda Rapid NH1 Engine Control Unit ECU Module 1.2 TSI CJZD 90HP 04E907309AF
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BMW 1 3 Series F20 F21 F30 LCI B47 Wiring Loom Harness Engine Module 8490136
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BMW F30 F31 N57N 330d 258HP Diesel Engine ECU Kit DDE 8572439 FEM Key Automatic
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BMW X1 E81 E84 E87 E90 E91 Earth Cable Battery Cable 7795485
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Radio Player Renault Trafic III Vauxhall Vivaro B Audio Head Unit 8200585305
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Audi RS6 C7 Air Condition A/C Climate Control Module Unit 4G0919158M
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BMW F40 Bluetooth Module Multimedia Control Unit ECU 5A35119
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Audi A4 B9 Front Door Module Control Unit ECU Driver's Side 8W0959593N
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Audi Q5 8R Engine Noise Control Module Unit ECU 8R0907160
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BMW F30 F31 320i B48 ECU Kit Engine Control Unit DME 8676533 Keys FEM Manual
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Audi A1 8X HV Battery Cable Loom Harness Wiring Negative Terminal 7P0915181C
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Audi A4 S4 B8 Q5 8R Front Right Door O/S Control Unit Module ECU 8K0959792P
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BMW F01 LCI 730d N57N Engine Control ECU Kit DDE 8577834 CAS4 Key Automatic
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Mini Cooper S R60 JCW ALL4 N18 218HP Engine Control ECU DME 8621260 Manual
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Mercedes W906 Radio Sat Nav Navigation System Head Unit Screen A9069000904
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Audi A4 B8 A5 8T Q5 8R Quattro Alternator Generator 2.0 TDI 03L903017
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Air Bag Module BMW E65 E66 Control Unit ECU Gateway Airbag 9149934
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Skoda Octavia II Door Module Front Left N/S Door Control Unit 1K0959792J
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BMW X3 Series E83 M47N2 2.0d 150HP ECU Kit DDE + EWS3 + Key 7799855 Manual
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BMW E90 E91 E92 325d E60 E61 LCI 525d M57N2 Engine ECU DDE 8506951 Automatic
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BMW X3 X5 E39 E46 E53 E83 Mini R50 R52 Control Unit Control Unit EWS3 6905668
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BMW X1 E84 X5 E70 X6 E71 Z4 E89 CAS3 Control Unit Key Reading Module ECU 9227106
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Dodge Journey 1 Radio CD Player Audio Head Unit 05064952AC
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Mini Cooper One R55 High SPEG DC/DC H3 Fuse Distribution Box 3451927
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BMW F20 F30 F32 LCI 120i 320i 420i Petrol B48 184HP ECU DME Unit 8740343 Manual
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BMW X6 E71 Rear Trunk Battery Cover Tray Storage Box 6981050
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Audi Q5 R8 3.0 TDI CGQB Seat Heater Control Module Unit 8R0907333
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BMW Z4 E85 2.5i M54 192HP ECU Engine Control Kit DME 7533651 + EWS3 + Key Manual
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Audi A4 S4 B8 Q5 8R Front Left Door N/S Control Unit Module ECU 8K0959793P
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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Headlight Module BMW F01 F02 LCI Xenon Headlamp Control Unit Lear TMS 7316218
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527
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Mercedes W205 W212 W246 Parking Distance Sensor Set x2 Cavansite Blue - 890
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BMW Mini Clubman R55 LCI Cable Wiring Loom Splitdoor Door Rear Left N/S 9224424
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Mercedes A207 Automatic Gearbox Transmission Control Module ECU A0009009400
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Telematics Module BMW F90 M5 Telephone Control Unit ATM ECE R1 9858556
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BMW E60 LCI 525d E90 E91 325d M57N2 197HP Engine ECU Unit DDE 7806987 Manual
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Mercedes W211 Rain And Light Sensor Control Unit Module ECU A2118206026
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Mercedes R171 Front Module Door Left N/S Control Unit A1718200726
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Mercedes W213 C238 Air Suspension Valve Block Control Unit Module A0993200258
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BMW E60 LCI E90 M57N2 325d 525d 197HP ECU Kit DME CAS3 + Key 7809941 Automatic
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Audi Q3 8U 2.0 TDI DFTA 150HP Quattro Engine Control ECU 04L907309AB Manual
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BMW X5 F15 Battery Management Electronics Module Unit 7536513
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Head Unit BMW X3 F25 X4 F26 Radio Media GPS Sat Navigation Unit 6822106
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Porsche Cayenne 92A Sound Audio Amplifier Bose AMP 7P5035481D
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Mini Cooper R58 Fuse Distribution Box PL3 SPEG H8 DC/DC 3457168
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BMW X1 E84 Wiring Harness Loom Cable Door Front Right O/S 9191419
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Mercedes W203 C180 Kompressor M271.946 Engine Unit ECU Kit A2719000600 Key Lock
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Renault Master 3 Vauxhall Movano B Display Screen Navigation Monitor 280563352R
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Mini F55 BDC FCC BSI Fuse Box Power Distribution Control Module Unit ECU 5A402E9
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6CIT-10300-BC
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Citroen Berlingo Peugeot Partner Radio CD MP3 Player Head Unit 9666393777
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PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 6819195
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BMW E84 LCI Body Comfort Control Module Unit CCM BCM 9247476
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Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N
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BMW 6 Series E63 Driver Side Seat Wiring Loom Electric Harness 9142453
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BMW E60 E90 E92 335i 535i N54 306HP Petrol Engine Control Unit ECU DME 7573863
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Fuse Relay Box Volkswagen Audi Skoda Seat Engine Bay Supply Unit 5Q0937125A
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Mazda 6 Mk3 GJ Bluetooth Module Control Unit ECU GHP966DH0F K2352
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Ford Transit Mk7 2.2 TDCI P8FA 85HP Engine Control ECU Kit AC11-12A650-BC Manual
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Mercedes W203 Electrical Wiring Cable Connection Media Interface A2128270026
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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 .