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. A1718205126
Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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Mercedes W205 Door Module Front Left N/S Control Unit ECU A2059001311
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Brake Harness Mercedes W205 Rear Left Brake Pad Wear Wire Wiring A2055404106
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Mini R60 Countryman Footwell Light Module High EKS ECU PL3 FRM3R Lear 3456588
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Mercedes W204 C180 BlueEFFICIENCY M274.910 Engine ECU Kit A2749000700 Key
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Audi A4 B9 2.0 TDI DTNA 163HP Engine Control Unit ECU 05L907309 Automatic
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BMW Mini Cooper R55 R56 R57 CCC Navigation Navi Sat Nav Head Unit 9195956
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Air Module BMW E60 E63 Control Unit Centre Sensor ECU 6952994
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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Door Module Mercedes C219 Front Left Door N/S Control Unit Module A2198200626
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Part no. 6G9Q10K019AA
Land Rover Freelander 2 L359 2.2 Alternator Support Bracket Mount 9661310080
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Mercedes SLK R172 W212 Rear Fuse Box SAM Relay Control Unit Module A2129004830
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio CD Professional 65126957351 6957351
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CD Changer BMW E60 E61 E63 E64 6-disc Without Magazine 6949694
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BMW MINI Cooper One F55 Cable Harness Door Right O/S Loom Driver Side 9359246
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Control Unit BMW E60 E61 E63 E64 CAS2 ECU Module 6927929
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Mercedes-Benz E-Class W210 Positive Plus Cable Wiring Cover Cap A2105451303
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Part no. 8J0907274
Audi TT 8J Tyre Pressure Control Module Unit 8J0907274
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BMW 7 Series E65 E66 E67 Steering Wheel Electronics Control Unit Module 6958040
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BMW F20 F21 F30 F31 Head Unit Basic Media DAB Headunit 8798185
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Part no. 4M0907355E
Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
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BMW X5 E70 Front Seat Control Unit Module ECU Left Right N/O/S 9149834
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Mercedes W166 Parking Sensor Wiring Loom Cable Harness Front PDC A1665408332
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BMW 3 E46 N42 316i 318i Petrol Engine Alternator Generator 110A Valeo 7521382
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Part no. 3457413
Mini Cooper One R56 High PL3 SPEG H4 Relay Fuse Distribution Box 3457413
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Part no. 9230455
BMW 1 Series E81 Footwell ECU Light Control Module Basis PL2 FRM3R Lear 9230455
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Part no. 04L903021H
Seat Ateca FR 2.0 TDI Engine Alternator Generator Valeo 14V 140A 04L903021D
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Part no. 7565300-1
BMW E87 E90 E91 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Manual
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Part no. A2189008903
Mercedes X218 CLS350 Airmatic Suspension Self Leveling Module A2189008903
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BMW 1 3 5 Series E60 E81 E87 LCI E90 Hands-free Bluetooth Module High MULF2
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Part no. 3427751
BMW X3 Series E83 Wiring Passenger Side Loom Front Door Cables 3427751
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Part no. 9124583-KAS1
BMW E87 E90 Front Rear PDC Ultrasonic Parking Sensor SET X4 Kaschmirsilber
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Part no. 9216273-1
Auto Radio BMW E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9216273
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Part no. 8K0907364A
AUDI S4 B8 Quattro Dynamic Suspension Electric Damper Control Module 8K0907364A
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Part no. A6394404809
Mercedes Viano Vito W639 Wiring Harness Tailgate License Plate Lamp A6394404809
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Part no. A6398200186
CD Radio Mercedes W639 W906 Audio Stereo Head Unit A6398200186
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Part no. 9897880-5
Mini Cooper S F55 F56 B48C 192HP Petrol Engine ECU Kit 9897880 BDC + Key
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Part no. 7620625
Wiring Mini R55 R57 LCI R58 R60 Petrol N18 Injection Ignition Harness 7620625
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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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Mini F56 Module Active Sound Design Audio Control Module Harman Becker 9363496
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Part no. 9198826
BMW 1 3 Series E81 E87 E90 LCI Professional Navigation System Car Computer CIC
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BMW X5 E70 CD Player Head Unit CIC DAB Professional Navigation Sat Nav 9257200
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Part no. 7796125
Alternator BMW X5 E70 X6 E71 M57N2 Generator 170A 170AMP 14V VALEO 7796125
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BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513242 Automatic
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Part no. 059903023BX
Audi A4 B7 2.7 TDI BPP Diesel Engine Alternator Generator 059903023BX
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Part no. 6948578
BMW E60 Light Control Unit Module LM E6X Lear 6948578
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Part no. A2048708926
Mercedes S204 Bootlid Control Unit Trunk Lid Module A2048708926
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Part no. 7811999-2
BMW X3 E83 LCI 2.0d N47 177HP Diesel ECU Kit DDE 7811999 + EWS4 + Key Manual
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Part no. A2049007408-1
Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Part no. 8581370
BMW 1 Series F40 MINI F56 F57 F60 Control Unit Box 8581370
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Part no. 9253111
BMW F20 F21 F22 Positive Plus Pole Battery Blow Off Cable 9253111
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Part no. 7513983-2
Mini Cooper R50 Engine W10 116HP Engine ECU Kit DME 7513983 EWS Key Automatic
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Part no. A2139068601
Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601
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Part no. A2044400605
Mercedes W204 Wiring Loom Cable Harness Door Front Left N/S A2044400605
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Part no. 7599881-1
BMW E87 LCI E90 E91 118i 318i Petrol N43 143HP ECU KIT DME 7599881 CAS3 + Key
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Part no. 9267515
Gateway Module BMW F10 F11 Central Module Control Unit Lear ZGW-02 ECU 9267515
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Part no. 5Q0937084BR
Audi TT 8S Module BCM Body Control Unit Module ECU 5Q0937084BR
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Part no. 9243645
Battery Cable BMW X3 F25 Wire Lead Positive Alternator Starter B+ 9243645
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Part no. 6983018-1
BMW E90 Radio Professional CD Audio Player Dash Control Unit 6983018
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Part no. 03F971612
VW Volkswagen Polo 1.2 TSI CBZB Engine Wiring Harness Cable Loom 03F971612
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Part no. 6919474
BMW 7 Series E65 E66 6-fold CD Disc Changer Without Magazine 6923547
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Part no. A2059002141
Mercedes W205 Air Module Control Unit SRS ECU A2059002141
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Part no. 8380407
BMW X5 Series E53 Power Distribution Fusebox Cover Fuse Box 8380407
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Part no. 9263803-2
BMW E90 Max Brose Footwell Light Module Control Unit FRM3R 9263803
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Part no. 04L903017E
Audi A4 8K 2.0 TDI Diesel Engine Alternator Generator 04L903017E
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Part no. 7639049-1
Mini Cooper S R56 LCI N18 1.6 Engine Control Unit ECU Kit DME 7639049 CAS 3 Key
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Part no. 8686185
BMW F40 X1 F48 Mini Countryman F60 Engine Starter Motor 12V 8686185
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Part no. 7531986
BMW X5 SERIES E53 3.0i M54 Engine Wiring Loom Harness Module 7531986
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Part no. 6981569
BMW E90 E91 E92 CCC Navi DVD System Controller 6981569
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Part no. A1715451332
Mercedes SLK R171 Parking Distance Aid Sensor Control Unit Module A1715451332
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Part no. 6915576
BMW Mini Cooper R50 R53 Cable Door Right Wiring Harness Loom 6915575 6944249
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Part no. 9354277
BMW F01 LCI Seat Module Front Seat Control Module Unit Temic 9354277
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Part no. 03E906033
VW Polo Petrol Engine Control ECU Manual Siemens 5WP1630440 03E906033
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Part no. 8K5907551B-1
Audi S4 B8 3.0 TFSI CGWC 333HP Quattro Engine Control Module ECU Kit 8K5907551B
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BMW F20 F21 F30 F31 F32 Radio Professional CD DAB Head Unit 9299268
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Part no. 9147387
BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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Part no. 6H52-14B321-AE
Land Rover Freelander 2 Air Module Control Unit ECU 6H52-14B321-AE
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Part no. 7831436
Alternator BMW M3 E46 Z3M E36 Petrol S54 Generator Valeo 120A 7831436 7830791
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Part no. 6948167
BMW 5 Series E60 E61 Centre Console DTC PDC Switch Center Cluster 9134025
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Part no. 1125053
Audi A4 B7 Starter Motor Engine Diesel Bosch 0001125053
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Part no. 9284420
Central Gateway Module BMW F10 F11 F12 ECU Control Unit Lear ZGW-02 High 9284420
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Part no. 7306797
BMW F30 F31 F32 Tailgate Smart Opener Control Unit Module 7306797
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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D
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Part no. 9194064-2
On-Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen 8,8" 9194064
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Mercedes SLK R171 Roof Module Convertible Folding Top Control Unit A1719000000
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Whelen Euro-1 Vehicle Siren Amplifier Booster Module 200W 16A 01-086A664-01
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BMW X5 E70 Front Bumper PDC Wiring Loom Cable Harness 6970675
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Part no. 6957528
BMW 5 6 E60 E63 LCI Body Control Module ECU Control Unit KBM Basis 6957528
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Part no. A2048702826
Mercedes S204 Module Control Unit Trunk Lid Rear Tailgate Lift A2048702826
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Part no. 6870078
Earth Ground Cable BMW G20 G21 G30 G31 G11 Line Strap Battery Lead 6870078
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Part no. 8385232
PDC Module BMW E39 Parking Assist Distance Control Module PDC 8385232
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Part no. 7640132-2
Alternator BMW F20 LCI F30 Mini F56 F60 Alternator Generator DENSO 180A 7640132
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Part no. 6802943
Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943
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Part no. 7578032
BMW E81 E87 LCI E90 E91 N43 Petrol Engine Control Unit ECU DME 7578032 Manual
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Part no. A6519006401
Mercedes GLC X253 220d 170HP 651.921 Engine Unit ECU A6519006401 Automatic
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Part no. 7521123-1
Starter Motor BMW E60 E81 E87 E90 F20 Bosch 0986021500 7521123
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Part no. 6962424
On Board Navigation BMW E60 E61 E90 E91 Display Monitor Screen 6,5" 6962424
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Part no. A2229001821
Mercedes GLA X156 Comunication Module Telematic Bluetooth Control A2229001821
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Part no. 8371011
BMW X3 Series E83 Cover Positive B Battery Terminal Point Case 8371011
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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 .