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. 9331211
BMW F20 F21 Radio BMW Professional CD DAB Player Controller F21 F22 F30 9331211
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Mercedes SLK R171 Rear SAM Control Unit Module Relay Fuse Box A1715450701
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BMW E87 LCI Light Module BASIS LCM Footwell Module PL2 FRM II 9241002
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BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513242 Automatic
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BMW 1 3 Series E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9132539
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SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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Audi Q3 8U Air Module ECU Sensor Control Unit 8U0959655D
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Part no. 9168833
BMW E60 E60N E63 E63N Body Control Module ECU Control Unit 9168833
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Part no. 7806779
MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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Rain Sensor Mercedes W211 W219 Windscreen Control Unit Module A2118701585
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BMW 7 Series E65 E66 E67 Diagnosis Interface Media System MOST Jumper 6917541
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BMW X5 E53 Basic Body Control Unit Module GM3 6946947
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BMW E93 Cabrio ECU Body Control Module H3 Junction Box 9177985
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Telematics Control Unit BMW F20 F31 LCI F32 Module ATM ECE 4G WLAN 8734748
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Radio Player BMW F20 F21 F30 F31 CD DAB Head Unit Audio Player 9335347
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Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P
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BMW E60 E61 E63 E64 Body Gateway Module KGM LOW
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Part no. 1438902
BMW X5 Series E53 4.4i Petrol M62 B44 448S2 Engine Wiring Loom Harness 1438902
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Part no. A2079005400
Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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BMW E91 Touring LCI ECU Body Control Module Junction Box H2 9267205
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Part no. A6395450301-2
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Part no. 7543083-3
Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Bosch LRA02970
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Part no. A1779008206
Mercedes W177 Ambience Illumination Light Control Module Unit A1779008206
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Part no. 8W0907428C
Audi A4 B9 Camera Control Module Unit ECU 8W0907428C
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Part no. 7560955-1
BMW 3 Series E90 320si 173HP DME 7560955 Petrol N45 ECU Kit CAS2 + Key Manual
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Part no. 7599881-2
BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic
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Part no. 8506281-5
BMW E87 E90 LCI 116d 316d Diesel N47 ECU KIT Engine DDE 8506281 CAS3 Key Manual
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Part no. A0051513901-1
Mercedes W203 W211 Kompressor M271 Petrol Engine Starter Motor A0051513901
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Part no. 6942507
Mini R52 R53 Battery Cable Wiring Lead Positive Plus Pole 6942507
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Part no. 6943427
BMW 3 Series E46 Radio Business Cassette Player 6928762
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Part no. 8488548
High Voltage Inverter BMW i3 I01 Hybrid 120Ah Rex Electrical Machine 8488548
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Part no. A1648209585
Mercedes ML W164 Air Module System Control Unit A1648209585
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Part no. A2128702751-1
Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Part no. A0061510301-1
Mercedes W169 W245 Petrol Engine Starter Motor A0061510301
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Part no. A1635457432
Mercedes-Benz ML W163 Parktronic Parking Control Unit Module A1635457432
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Part no. 6961364
Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6961364
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Part no. 6923945-2
BMW E60 E60N E61 E63 LCI B Terminal Point Engine Compartment 6923945
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Part no. A6429004701
Mercedes C292 GLE 350d 4-Matic OM642.826 Engine Control Unit ECU A6429004701
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Part no. 7L6035191R
VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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Part no. 7797660
Alternator BMW X3 E46 X5 E53 E85 Diesel Generator 150A 7797660
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Part no. 3448964
Mini Cooper One R56 High SPEG Fuse Distribution Box SPEG High 3448964
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Part no. A4479063000
Mercedes Vito W447 Heater Blower Motor Fan Resistor A4479063000
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Part no. 7823422
ECU Engine Control BMW E81 E87 E90 LCI 118d 318d N47 Diesel DDE 7823422 Manual
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Part no. A1635400534
Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Part no. 3457163
BMW Mini Cooper One R56 LCI High PL3 SPEG H4 Fuse Distribution Box 3457163
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Part no. 5N0971228D
Volkswagen Tiguan 5N Battery Lead Positive Cable Plus Pole Wiring 5N0971228D
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Part no. 9236531
BMW E81 E87 E90 E91 LCI E92 E93 CD Radio Business 9236531
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Fuse Box MINI R56 LCI Cooper One PL3 SPEG H5 Distribution Control Unit 3456852
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Rear Bumper Antenna BMW E93 E93N LCI 2 Aerial Telephone 6970701
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Part no. 8512498
BMW E84 20dX N47 177HP ECU Control Unit Kit DDE 8512498 Automatic Transmission
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Part no. 9240528-2
BMW X1 E84 Footwell Xenon Light Control Module Lear FRM3R PL2 9240528
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Part no. A0141542702-1
Alternator Generator Mercedes Vito W639 Sprinter W906 14V 120A Bosch A0141542702
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Part no. 8512499
Engine Control Unit BMW E81 E87 E90 E91 LCI N47 Diesel ECU DDE 8512499
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Part no. A2129008404
Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008404
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Part no. 9311035
Navigation Head Unit BMW F10 F20 F21 F30 F31 Media Player High 9311035
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Part no. 8586572
Engine Wiring BMW F20 LCI F30 F31 B47 Automatic Gearbox Loom Harness 8586572
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Part no. 4L0907566A
AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Part no. 7803373-6
BMW E60 E87 E90 120d 320d 520d M47N2 Engine Control ECU Kit DDE 7803373 CAS3
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Part no. 9110890
BMW 1 3 Series E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9110890
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Part no. A6395450003
Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003
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Part no. 9133335
BMW 1 3 X1 Z4 Series E81 E87 E88 E89 E90 E91 E92 E93 Radio Business CD 9133335
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Part no. 4H0907063DB
Audi A5 8T Body Control Comfort Unit Convenience Module BCM1 ECU 4H0907063DB
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Part no. A2048705490
Mercedes-Benz C W204 Digital Audio DAB Receiver Control Unit Module A2048705490
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Part no. X3 E83 Rear Wiring Loom PDC-1
BMW X3 Series 1 E83 Rear Bumper Wiring Loom PDC Harness Parking Sensor
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Part no. A2079014300
Mercedes-Benz E-Class A207 W207 Convertible Air Module System Control Unit
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Part no. A1695451940-1
Fuse Box Mercedes W169 W245 Electrical Relay Control Module Unit A1695451740
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Part no. 7605060
BMW F20 F21 F30 LCI DENSO 170A Alternator Generator 7605060
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Part no. 9325653
BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9325653
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Part no. 9224673
BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9224673
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Part no. 9117532-1
BMW E60 E61 Radio Player M-ASK M-Audio System Controller CD Head Unit 9117532
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Part no. 6941503
BMW X5 Series E53 Cable Harness Door Front Right Left N/O/S 6941503
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Part no. A0315450732
Mercedes-Benz W202 W208 W210 ESP + BAS Control Unit Module ECU A0315450732
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Part no. A6397602004
Bowden Cable Mercedes W639 Rear Right O/S Sliding Door Handle Catch A6397602004
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Part no. 06J903023H
Volkswagen Golf Mk7 5G Alternator Generator 2.0 TFSI CHHA 06J903023H
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Part no. 9131776
BMW 3 Series E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 9131776
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Part no. 8K0919475R
Parking Module Audi A4 B8 A5 8T PDC Sensor Control Unit 8K0919475R
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Part no. A2219006404
Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Part no. A2721540002-1
Alternator Generator Mercedes R171 W209 W211 M272 Petrol Engine 150A A2721540002
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Part no. 8625241-7
BMW F20 F30 116i 316i N13 Engine Control Unit Module ECU DME 8625241 Automatic
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Part no. 7589971-3
Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + Key
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Part no. 9244429
BMW X6 Series E71 Rear Bumper PDC Cables Wiring Loom Set 9244429
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Part no. 7808073-1
BMW E90 E91 E92 E93 LCI Diesel N57 Alternator Remy 150A 7808073 DRA0429
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Part no. 7595179-7
BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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Part no. 4H0919475AA
Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475AA
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Part no. 3456987
Mini Cooper R60 Footwell Light Module Unit High EKS ECU PL3 FRM3R Lear 3456987
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Audi A3 8V VW Passat B8 Gateway Control Unit Module 5Q0907530AM
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Part no. 6840399-1
Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation GPS 6840399
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Part no. 8782591-1
Mini F55 F56 Roof Antenna AM FM GPS TEL 8782591 65208782591
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BMW 1 3 Series E87 E90 E91 ABS DSC Module Pump ECU Hydro Unit 6778164 6791521
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Part no. 9382517
Audio Amplifier BMW F20 F21 F23 LCI I3 I8 Top Hifi Harman Kardon Unit 9382517
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Part no. 9361150
Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9361150
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Part no. 6956586
BMW 1 Series E87 Footwell Light Module ECU Control Unit NSW PL2 FRMFA 6956586
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Part no. 7798179-2
BMW 1 3 Series E87 E90 E91 118d 318d M47N2 Engine ECU KIT DDE 7798179 CAS2 + Key
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Part no. 6977767-1
Mini Cooper R50 R52 R53 6-Disc CD Changer Unit Module With Magazine 6977767
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Part no. 9147195
BMW E60 E81 E87 E90 E91 CAS 3 Control Unit ECU Key Reading Module CAS3 9147195
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Part no. 3455895
Mini Cooper One R56 Footwell Light Module Low EKS ECU PL3 FRM3R 3455895
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Part no. 2163807
BMW E92 Mid-Range Loudspeaker Midtone Speaker 2163807
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Part no. 9115661
Mini Cooper One R50 R52 R53 Radio Boost CD Player Unit Head 9115661
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Part no. A2129005213
Mercedes C204 Sound Audio Amplifier Unit Harman Becker A2129005213
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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 .