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. A1775404307
Fuse Box Mercedes C118 W177 W247 Engine Compartment Relay Box Module A1775404307
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Mini Cooper R50 R53 Rear Battery Hold Down Strap Retaining Bracket 6917738
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Light Module Mercedes W209 W219 W164 Headlight Headlamp Control Unit A2198202526
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Mercedes W166 Headlight Lamp LED Control Module Left Right N/O/S A2189009203
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BMW 3 5 7 X5 Series E61 E65 E70 E90 Telematics ECU Control Unit GSM 9206778
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BMW F10 F11 N47S1 Engine Injector Module Wiring Harness 8508654
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BMW G20 Reverse Rear View Camera 5A63731
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Rain Sensor Mercedes W204 Light Solar Condensation Control Unit A2048208185
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Seat Module BMW E60 E61 E65 E66 Front Control Unit ECU 6927313
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Audi A4 B7 Door Harness Loom Cable Wiring Rear 8E1971687L
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BMW 3 Series E90 Footwell Light Control Module Lear FRM3R PL2 9230445
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Mercedes W166 Tailgate Control Module Unit A1669006311
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Peugeot Boxer Body Control Module Control Unit BCM Fuse Box 1371887080
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Mercedes W204 Radio Control Function Button Knob Controller Unit A2048704658
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Mini Cooper R57 R58 R59 Microphone Hands Free Telephone 9167397
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Mercedes W221 Seat Control Module SSG Unit Front Left Seat N/S A2218702986
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Ford Mondeo Mk4 Alternator Bracket 2.0 TDCi Mount Support AG9Q-10K019-AB
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Mercedes ML W163 Comfort Control Module Central Electronics A1635457332
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Mercedes W211 OM646 Battery Cable Starter Alternator Wiring Harness A2114406209
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BMW F06 Electric Wiring Cable Loom Harness 9269983
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Mercedes Vito Viano W639 Battery Cable Positive Wiring Harness A6735460011
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BMW E61 E63 X5 E70 Telematics Bluetooth Control Unit Module 9138179
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Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A C543294A
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Ford Transit Connect Mk2 Alternator Generator 165A 1.5 Diesel JX6T-10300-KB
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Mercedes W140 Electric Seat Adjustment Control Unit Module ECU A1408205126
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BMW 5 E60 E61 Wiring Loom Harness Co-Drivers Passengers Side 6982360
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Part no. 8A6T17D547AB
Rain Sensor Ford Fiesta MK7 Mondeo MK4 Windscreen Light Module 8A6T17D547AB
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Part no. 9215649
Mini Clubman R55 Rear Right O/S Wiring Loom Cable Harness Set 9215649
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Part no. A2118702885
Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118702885
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Part no. A0121544502
Mercedes W168 Alternator Generator A0121544502
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Part no. 8P0959433J
Audi A3 8P Body Control Comfort Unit Module BCM Convenience Unit ECU 8P0959433J
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Part no. 5QA035858A
Seat Ibiza IV Multimedia Radio Sat Nav CD Player Head Unit 5QA035858A
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Part no. 7541694
BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Mercedes A-Class W168 Cable Starter Line Negative Line Battery A1661500333
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BMW F10 F11 Cable Harness Door Driver's Side Right O/S Wiring 9237082
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Part no. 4L0907290A
Audi Q7 4L Door Control Unit Module ECU Front Right O/S 4L0907290A
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Part no. 7823343
Alternator BMW F20 F21 F30 F31 F32 N47N Diesel Generator 180A 7823343
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Part no. 7570487-1
Mini Cooper One R50 R52 W10 Engine Starter Motor 7570487
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Part no. A9068200486
Radio Player Mercedes W639 W906 Audio Stereo CD Head Unit Display A9068200486
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BMW E65 E66 730i M54 Diesel Battery Cable Starter-Base B+ 7522057
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Head Unit BMW F20 F21 F22 F30 F31 F82 LCI Sat Nav Radio Media Navigation 8736162
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Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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BMW F01 F02 F03 F10 LCI X3 F25 Control Unit Rear Function Module 7327886
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Mercedes S211 W211 Fuse Box Unit Cover Front A2115400082
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VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9173686
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Part no. A2098205489
Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Part no. 7532140-4
BMW X3 E83 Z4 E85 2.5i M54 192HP Engine ECU DME Control Unit 7532140 Automatic
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Part no. A1649004400
Sam Module Mercedes ML W164 Rear Relay Box Control SAM Unit A1649004400
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Part no. A2218702686
Mercedes W221 Head Unit Radio Player Media Navigation DVD Changer A2218702686
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Part no. 117103703R
Renault Master II Alternator Support Bracket Mount 117103703R
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Part no. 5Q0906121G
Audi A3 8V 1.6 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121G
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Part no. 3457587-1
Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3457587
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Telematics Module BMW F10 F20 F30 Bluetooth Communications Control 2447522
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Part no. 96766518XT00
Peugeot 307 CD Player Radio Stereo Head Unit 96766518XT00
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BMW E90 E91 E92 E93 Longitudinal Dynamic Module Cruise Control 6771182
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Parking Sensor Display Mercedes W176 W204 W246 Dashboard Panel PDC A1725420023
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Part no. 6Q0937517
VW Polo 9N Battery Terminal Fuse Distribution Cable Cover Power Board 6Q0937517
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Part no. A9065453001
Mercedes W906 Fuse Box SAM Relay Control Unit Module A9065453001
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BMW 3 Series E46 Radio Business Cassette Player 6928762
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Starter Ford Mondeo MK3 2.0 TDDi Mk4 2.0 Tdci Diesel Engine Starter Motor
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Volkswagen New Beetle Air Module Control Unit Sensor ECU 6Q0909605AL
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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399002900
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6461501388
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Part no. 8200634602
Renault Master II Trafic II 2.5 dCi Diesel Engine Starter Motor Valeo 8200634602
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Part no. A2129003908
Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129003908
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Part no. 7545165
BMW E87 E90 116i 316i Petrol N45 Wire Wiring Harness Engine Gearbox Mod Loom
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Part no. A2198202326
Mercedes CLS W219 Door Module Front Left N/S Control Unit Module A2198202326
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Part no. 5H4971162MP
Volkswagen Golf CD1 Front Door Right O/S Loom Wiring Cable Harness 5H4971162MP
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Part no. A2028207426
Mercedes W202 W208 Anti Theft Alarm Module Control Unit ECU A2028207426
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Part no. 05L903026B
Audi Q2 GA 3.0 TDI DTTC Diesel Engine Alternator Generator 05L903026B
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BMW 3 Series E46 Coupe Saloon Aerial Antenna Amplifier Diversity 433MHZ 6907123
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Part no. A2115456101
Mercedes W211 SAM Module Fuse Box Relay Control Unit A2115456101
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Part no. A2059000044
Mercedes C205 Midline Sound Audio Amplifier Unit A2059000044
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Part no. 6836883
PDC Module BMW X3 F25 X5 F15 Mini F55 F56 Parking Distance Control Unit 6836883
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Part no. 9371131
Seat Control Unit BMW F30 F36 Front Seat Module Unit Controller ECU 9371131
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Part no. 9218086
BMW E81 E87 E90 LCI Top Hifi System Amplifier Logic 7 L7 Harman Becker 9218086
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Part no. A1779002610
Mercedes W177 Ambient Lighting Control Module Unit ECU A1779002610
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Part no. 9645100680
Peugeot 307 Citroen C4 C5 1.6 HDI Diesel Engine Starter Motor 9645100680
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Audi Q7 4M Rear Boot Lid Tailgate Opening Module Cable Wiring Line 4M8962239
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Part no. 6917556-IB
Mini R50 R52 R53 Rear PDC Ultrasonic Parking Sensor Indi Blue 6917556
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Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712
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BMW E39 E46 E53 E83 Control Unit EWS IV 9127086
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Audi Q7 4L S8 D3 Interface Control Unit Module 4E0035785B
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Mercedes GLC C253 X253 Pedestrian Protection Pressure Crash Sensor A2539052100
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On-Board Screen BMW F10 F11 LCI Central Information Display 10,25" 9321016
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BMW 3 Series E93 E93N LCI Cabrio Battery Cable Plus Pole 9160101
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Mini R55 R56 LCI R60 R61 D N47N Engine Injector Module Wiring Harness Cable
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Mercedes C238 Head Unit Radio CD Player Audio Sat Nav Control A2229009519
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Opel Vivaro A Renault Trafic MK3 1.6 dCi Engine Alternator 185A 93461046
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Xenon Control Unit BMW X5 E70 E90 E91 LCI Adaptive Headlight 7189311
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Audi A3 8P Multimedia Stereo Sat Nav CD Player Radio Head Unit 8P0057186SX
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Cable BMW E39 Petrol Engine M52 Alternator Starter Cable Wire B+ 7503505
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BMW 5 7 X3 X5 X6 F10 F11 E70 E71 F01 F02 Rain Light Solar Sensor Unit 9123152
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Part no. 3448964
Mini Cooper One R56 High SPEG Fuse Distribution Box SPEG High 3448964
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Mercedes R231 Seat Control Unit Module Driver A2319003606
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Part no. 3G0919605D
VW Volkswagen Golf Mk7 Multimedia MMI Sat Nav Radio Display Screen 3G0919605D
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Part no. P04727535AC
Chrysler Grand Voyager Automatic Gearbox Control Module Unit ECU P04727535AC
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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 .