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. 3C0035270
VW Volkswagen Golf 6 Polo Radio Head Unit RNS 310 Media Player Unit 3C0035270
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Alternator Generator Mercedes W177 W247 M260 Petrol Engine 200A 14V A0009068206
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Audi A4 B9 A5 F5 Q5 FY A6 C8 A7 C8 Alternator Generator Valeo 04L903018A
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BMW E60 E87 E90 Telematics Bluetooth Control Unit Module 9177754
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BMW Mini Cooper S R55 R56 R57 N14 1.6 ECU Kit DME CAS 3 2 Keys 7610011 Manual
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BMW 1 X5 Series E53 E87 Hands-free Bluetooth Charging Module MULF Unit 6987546
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BMW F10 F11 F20 F21 F30 F31 130A Electric Fan Motor Relay 9198302
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CD
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Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P
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BMW E81 E87 E90 MULF Hands Free Electronics Charging Module 9116725
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Mercedes A238 SAM Control Module Unit ECU A2139008123
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BMW 7 Series E65 E66 Cooler Fan Unit Cooling 6932273 0130002845
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Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C
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Engine Wiring Mercedes W204 W212 OM651 Diesel Harness Loom Cable A6511504633
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BMW E90 E92 335i Petrol N54 306HP ECU Engine Unit Module DME 7586933 Automatic
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BMW Z4 Series E85 Roadster Wiring Passenger Side Door Cable Harness 6941884
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Part no. 5Q0959655AA
VW Volkswagen Golf Mk7 Front Impact Crash Air Module Sensor 5Q0959655AA
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Part no. A6421501500
Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU A6421501500 Automatic
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BMW F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182
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Mercedes W207 Seat Adjustment Motor Front Seat Actuator Unit 0390203330
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Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047
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Audi VW Seat Skoda Headlight Aim Range Control Unit Module ECU Xenon 3Q0907338C
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Part no. 1005831549
Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549
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Part no. A0009006207
Mercedes-Benz A B E W176 W212 W246 Fuel Pump Module Control Unit A0009006207
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Part no. 6C0937089D
Seat Ibiza 6J Central Body Comfort BCM Interface Module 6C0937089D
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Part no. A6549061500
Starter Mercedes W204 C238 W213 W447 Diesel OM654 Starter Motor A6549061500
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BMW 3 4 Series F30 F80 M3 F82 M4 Battery Cable Lead Positive Underfloor 9348763
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Part no. 3455241
Mini Cabrio R57 PL3 SPEG H4 Fuse Control Unit Module Distribution Box 3455241
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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Part no. A0131541002-2
Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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Part no. 8580307-2
BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8580307 CAS3 Key Automatic
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Exhaust Flap Control Mercedes C117 W176 W246 Actuator Drive Unit A0009061201
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Part no. 7552176-2
BMW E87 E90 118i 318i N46 129HP ECU DME 7552176 Manual Transmission
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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. 03C906024CN
VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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Part no. 9224595
BMW E90 LCI Footwell Light Control Module LCM LED Basis 9224595
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Part no. 7573701
Mini Cooper R56 N12 1.6 120HP Petrol Engine ECU Kit DME 7573701 CAS3 + Keys
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Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640
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Mercedes R172 PDC Parking Distance Sensor Control Module Unit A1729000302
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Mercedes W203 W210 W211 Starter Motor Diesel Engine Remy A0051511301
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Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
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Mercedes W221 DSM ISM Automatic Gearbox Control Unit Module ECU A1644460710
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Mercedes CL203 Radio Aerial Antenna Amplifier Wiring Cables A2038200389
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Part no. 8J0035223C
Audi TT 8J Audio Amplifier Premium Sound Booster Control Unit Bose 8J0035223C
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Part no. A2701506733
Wiring Harness Mercedes W246 M270 Petrol Engine Wiring Harness Loom A2701506733
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Part no. 9227766
BMW F11 Touring Tailgate Spoiler Probe AM/FM Sensor 9227766
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Part no. 6906607
Fuse Box BMW E87 E90 E91 E92 E93 Front Power Distribution Relay Box 6906607
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Part no. UB2305000334
Mercedes CLA C117 Head Unit Sat Nav Navigation Display Screen UB2305000334
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Part no. A2479001506
Mercedes C118 W177 W247 Body Control Module BCM V2 A2479001506
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Part no. 9366112
Mini F56 Active Sound Design Radio Audio Amplifer Control Unit Module 9366112
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Part no. 275850906R
Engine Wiring Renault Trafic 2 Loom Module Harness Cable 275850906R
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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. 02T911023R
VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R
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Part no. 8V21-10300-AB
Ford Focus Diesel Engine Alternator Generator Engine Unit 8V21-10300-AB
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Part no. 7542529-3
BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Part no. 04L907309B
Volkswagen Golf Mk7 1.6 TDI CLHA Engine Control Unit ECU 04L907309B Manual
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Part no. A1669005420
Mercedes W166 Radio Sat Nav CD Multimedia Control Central Head Unit A1669005420
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Part no. 6914605
BMW X5 E53 Radio Stereo Screen Multifunctional Display Head Unit 6914605
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Part no. 7N0959792
Skoda Yeti 5L Door Control Unit Module ECU Passenger's Side 7N0959792F
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Part no. A2038700026
Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026
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Part no. 9353066
BMW F20 F21 F30 F31 Relay Cover Electric Fan Relay Cap 9353066
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Part no. A2198200089
Antenna Amplifier Mercedes CLS C219 Pillar C Left N/S Aerial Module A2198200089
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Part no. 6975688
BMW E64 Gateway Module Sensor Air Module Control ECU 6975688
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Part no. A2115405645-1
Mercedes W211 Central Gateway Module Control Unit A2115405645
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Part no. 9663615380
Battery Cover Citroen Berlingo Peugeot Partner Tray Holder Housing 9663615380
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Part no. GK2T-6M091-AB
Ford Transit Mk8 2.0 Ecoblue Diesel Glow Plug Wiring Loom GK2T-6M091-AB
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Part no. A2049001813
Mercedes W204 Head Unit Radio CD Player Audio Sat Nav Control A2049001813
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Part no. A9069004700-1
Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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Part no. 8378339
BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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Part no. A2218704895
Mercedes W221 Door Module Rear Door Control ECU Unit Left N/S A2218704895
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VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S
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Part no. 9215952-1
BMW E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 9215952
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Part no. 9232896-2
Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen 8,8" Unit 9232896
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Part no. 7520019-13
MINI Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS3 + Key Automatic
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Part no. 6950525-2
4 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
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Part no. 8J0959433B
Audi TT 8J BCM Body Comfort Convenience Module Unit ECU 8J0959433B
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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. 4F0910223C
Audi A6 C6 Hifi Audio Sound Speakers Amplifier Control Unit ECU 4F0910223C
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Part no. 04C903023K
Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K
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BMW E65 E66 Front Seat Occupancy Sensor Mat 6914666
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BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9294309
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Mercedes Vito W639 Suspension Level Control Unit Module ECU A6394460317
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Front Air Module Mercedes W205 X253 SRS Control Unit ECU A2059009627
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Alternator Mercedes W212 Engine Generator 220A Valeo A0009063522
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Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601
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Mercedes W204 Dashboard Dash Navigation Central Display Wiring Cable A2045405709
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BMW F07 F10 F11 N47N Diesel Alternator Generator Engine 220A Valeo 8507625
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Part no. 7787356-1
BMW E46 E60 LCI E83 E87 M47N2 Diesel Starter Motor 7787356
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Part no. 8515900-1
Engine Starter Motor BMW X5 E70 LCI F01 N57 Diesel Starter Actuator 8515900
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Part no. A2035400006
Mercedes-Benz C W203 Front Bumper Parking Sensor Wiring Loom Cable Harness
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Part no. 8V0907357A
Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Part no. 4L0915181
Audi Q7 4L Power Supply Battery Control Module Unit 4L0915181
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Part no. A0055461040
Energy Distributor Mercedes W204 W212 W906 Power Block Control Unit A0055461040
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Part no. YSB001040
Land Rover Range L322 3.0d M57 Engine Wiring Loom Harness Automatic 7788409
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Part no. 8U0959107
Audi Q3 8U Boot Tailgate Control module Unit 8U0959107
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Part no. 8603352-2
BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8603352 Automatic
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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 .