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. 7811151
BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Unit DDE 7811151 Automatic
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BMW 5 Series E61 LCI Light Control Module Unit Lear LM II E6X LWR 9180756
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BMW E60 Light Control Unit Module LM E6X Lear 6948578
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BMW X5 Series E53 GM III General Body Control Module Unit ECU Lear 6940923
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BMW E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9251487
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BMW 5 6 Series E60 E61 E63 E64 6-disc Compact CD Changer 6941416
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BMW X5 E53 3.0d M57N 218HP ECU Control Unit Module DDE 7800131 Automatic
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BMW F10 Tailgate Module Rear Boot Trunk Lid Control Unit ECU 7317512
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Mini Cooper R55 R56 R57 Petrol N12 DME 7640005 Engine Control Unit ECU
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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BMW 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6945029
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Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101
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BMW E87 E90 118i 318i Engine N46 129HP ECU KIT DME 7561834 CAS2 + Key Automatic
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BMW E60 E64 LCI Body Gateway Module ECU Control Unit KGM E6X High D-Can 9176079
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Steering Lock Mercedes W176 W246 Control Unit Module VST A0999000400
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Mini Cooper One F54 F55 F56 F57 F60 Starter Motor Engine Petrol 8658275
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Part no. 7810980
BMW E60 LCI E90 335d 535d M57N2 286HP Engine Control Unit ECU 7810980 Automatic
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Part no. 8039827
BMW X5 E70 Front Bumper PDC Parking Sensor Wiring Loom Cable Harness 8039827
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Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7314798
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Part no. 1K0959433BT
VW Golf 5 Body Control Comfort Unit Module BCM Convenience Unit ECU 1K0959433BT
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Part no. 8709211
BMW F20 F21 F22 F30 F31 F32 F36 Front Electronic Module Control Unit FEM 8709211
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BMW 1 Series E87 ECU Footwell Light Module Control Unit PL2 FRMFA 6955491
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Airbag Module BMW F20 F21 F30 F31 F32 ECU ICM Plus Control Unit Air Bag 6887754
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BMW 5 X5 Series E61 E61 LCI E70 Telematics Bluetooth Control Unit Module 9171347
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Part no. 1K0907530AD
VW Volkswagen Golf 6 Gateway Control Unit Module ECU 1K0907530AD
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Part no. 7504737
BMW 5 X5 Series E39 E53 Petrol M62 Engine Starter Motor Adapter Cable 7504737
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Part no. 7557395-2
Mini Cooper R50 1.6 W10 116HP Engine ECU Kit DME + EWS + Key 7557395 Manual
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Part no. A2125406462
Mercedes W212 Air Suspension Control Unit Module ECU A2125406462
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Part no. rhd-7802567-1
BMW 3 Series E90 E91 E92 325D M57N2 Diesel Manual Engine Wiring Loom Harness
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Part no. 7589971-14
Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 + CAS3 + Keys Manual
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Part no. 7700821864
Renault Relay 12V 70A Black V23134-J52-X207 7700821864
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Part no. 9249081
BMW E93 Footwell Light Control Module FRM3R PL2 Lear 9249081
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Part no. 9125031-1
BMW 1 Series E81 E87 LCI 1 Positive Battery Lead Cable Wiring 9125031
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Part no. 9160190
BMW 3 Series E93 ECU Body Control Module H3 Junction Box PL2 JBBFE II 9160190
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Part no. 03G911023
Audi A4 B7 A6 C6 Motor Starter Unit 2.0 TDI Diesel Engine 03G911023
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Part no. A2129005010-1
Mercedes W212 Audio CD Player Audio Stereo Radio Head Unit A2129005010
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Part no. 8709338
On-Board Screen BMW F20 F30 LCI Information Display Touch Monitor 8,8" 8709338
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Part no. 6948052
BMW Z4 Series E85 Roadster Driver's Side Door Wiring Loom Cable 6941877
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Part no. 9393182
BMW F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182
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Part no. 7559178-4
BMW E60 E90 E91 330i 530i Engine N52 ECU Kit DME 7559178 CAS2 + 2 Keys Manual
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BMW E60 E61 E63 Airbag ECU Control Unit Gateway Module 6962703
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Part no. 7540686-1
BMW F32 F33 F36 435i N55 306HP Engine Control Unit ECU DME 7540686 Automatic
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Part no. 7243562
BMW F20 F30 Sport Seat Front Heating Mat Element F21 F31 F32 7243562
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Part no. A2038209885
Airbag Module Mercedes W203 W209 SRS Control Unit Crash Sensor ECU A2038209885
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Part no. 8P0907530C
Audi A3 8P Control Unit Gateway Module ECU 8P0907530C
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Part no. 9253484
BMW 3 Series E90 LCI ECU Body Control Module H3 Junction Box 61359253484 9253484
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Part no. 6827063
BMW X5 E70 Footwell Light Control Unit Module FRM3R Lear ECU 6827063
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Part no. A1715450701
Mercedes SLK R171 Rear SAM Control Unit Module Relay Fuse Box A1715450701
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Part no. 8643642
BMW F30 LCI 330e G11 740e G30 530e Hybrid B48X Engine Starter Motor 8643641
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BMW 3 Series E90 E91 318i N46 Wiring Harness Engine Gearbox Manual 7572362
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Part no. 284B13345R
Mercedes Citan W415 Renault Kangoo Body Control Module BCM Unit 284B13345R
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Part no. 9274032
BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9274032
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Part no. 3457429-1
Mini Cooper R61 Footwell Light Module High EKS SZT ECU FRM3R PL3 Lear 3457429
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Part no. 7621178-2
BMW 1 Series E81 E87 LCI N43 118i 143HP ECU Kit DME 7621178 CAS3 Key Automatic
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Part no. rhd-7802571
BMW 5 Series E60 E61 530d M57N2 Wiring Loom Harness Engine Manual 7802571
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Part no. rhd-7812509
BMW 3 Series E90 E91 LCI N57 Diesel Engine Wiring Harness DDE 7812509 7808251
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Part no. 7809955-1
BMW E60 E90 E91 E92 LCI 335D 535d M57N2 Engine ECU KIT DDE 7809955 + CAS3 + Key
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Part no. 7640004
Mini Cooper One R55 R56 Petrol N12 Engine Control Unit DME 7640004 ECU Manual
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Part no. 6929148
BMW E63 E64 Front Bumper PDC Loom Cables Wiring Set 6929148
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Part no. 7527610-2
£MINI Cooper S R53 W11 170HP Engine ECU Kit DME 7527610 + EWS + Key Manual
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Part no. A2115459301
Mercedes W211 W219 Fuse Box Rear SAM Module Electrical Fuse Unit A2115459301
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Part no. 8P0907063G
Audi A3 8P Body Control Module Unit 8P0907063G
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Part no. A1698204789
Mercedes-Benz W169 W245 CD Player Radio Audio Head Unit A1698204789
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Part no. A2139002022
Door Module Mercedes W213 C238 Front Left N/S Control Unit ECU A2139002022
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Part no. 8P0907279N
Audi A3 8P BCM Body Control Module Unit ECU 8P0907279N
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Part no. 3453736
Mini Cooper R56 SPEG PL3 M2 SPEG Fuse Distribution Box 3453736
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Part no. 9299592
BMW F10 F11 Central Gateway Module ECU Control Unit Lear ZGW-02 4SK 9299592
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Part no. 9418460
PDC Module BMW G30 G31 Parking Assistant Control Unit USS VA03 HIGH 9418460
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Part no. 038907281D-1
Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 038907281D
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Part no. A2218206397
Mercedes-Benz S W221 Rear View Reversing Camera Video Unit Park A2218206397
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Part no. 9249073
BMW X5 E70 LCI Light Module Footwell Module FRM3R Lear ECU Unit 9249073
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Part no. A2129004911
Fuse Box Mercedes W207 Front Relay Control Unit Module SAM A2129004911
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Part no. 7807828-4
BMW E87 LCI E90 118d 318d N47 143HP ECU KIT DDE 7807828 CAS3 + Key Automatic
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Part no. A2129003825
Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2129003825
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Part no. 7810950-3
BMW E70 3.0d M57N2 235HP Engine Control Unit Module ECU DDE 7810950 Automatic
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Part no. 9257200
BMW X5 E70 CD Player Head Unit CIC DAB Professional Navigation Sat Nav 9257200
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Part no. 7552176-17
BMW E87 E90 120i 320i N46 ECU Engine Control Kit DME 7552176 CAS2 Key Automatic
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Part no. 7558220
BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220
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Part no. 8617551-1
BMW F30 F31 320i Petrol N20 184HP Engine ECU Kit DME 8617551 FEM Key Automatic
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Part no. 6965942
BMW MINI Cooper One R50 Rear Bumper PDC Cables Wiring Loom Set
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Part no. 6781575-1
YAW Rate Sensor BMW E81 E87 E90 E91 Accelerator Speed Module 6781575
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Part no. 7527610-3
Mini Cooper R50 W10 90HP Engine ECU Kit DME 7527610 + EWS + Key Automatic
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Part no. 7797521
BMW E60 E61 E63 E65 E83 Alternator Generator VALEO 170A 7797521
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Part no. A0061514501-2
Starter Motor Mercedes W204 W212 Sprinter W906 OM651 Diesel Engine A0061514501
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Part no. 7527610-7
MINI Cooper R53 W11 170HP Engine ECU Kit DME 7527610 EWS Key Manual
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Part no. A2479061803
Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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Mercedes E-Class W211 Passenger Side Acquistition Actuation Signal Control Unit
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Part no. 6947498
BMW 5 Series E61 Touring Negative Battery Lead Wire Cable Ground 6947498
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Part no. A2098204926
Mercedes W209 A209 Convertible Windscreen Rain Light Sensor Module A2098204926
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Part no. 8506199-1
BMW 5 Series E60 E61 LCI 520d Diesel N47 Engine ECU Kit DDE CAS 3 Key 8506199
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Part no. A9069000501
Mercedes W906 Door Module Front Left Right N/O/S Control Unit ECU A9069000501
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Part no. A1765401201
Mercedes W176 Multimedia Box Wiring Loom Electrical Harness A1765401201
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Part no. 4L0907553E
Audi Q7 4L Air Suspension Adjustment Module Control Unit 4L0907553E
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Part no. 6923877
BMW X5 E53 Onboard Computer Navigation System Monitor Widescreen 6923877
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Part no. A2045453901
Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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Part no. 1480790
Fuse Relay Mini Cooper One R50 R53 Electrical Box Housing With Cover 148079
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Part no. 9315094
BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315094
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Part no. 7607685-2
Mini Cooper R56 LCI N16 1.6 Petrol Engine ECU Kit DME 7607685 + CAS 3 + Key
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Part no. 9160557
BMW Z4 E60 E61 E63 E85 Air Module Control Unit Module ECU 9160557
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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 .