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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Audi TT 8J 2.0 TFSI BWA 200HP Engine Module Control Unit ECU Set 8J0907115
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Communication Module Mercedes R172 C117 W176 Hermes LTE Control Unit A2229004519
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Front Seat Module BMW E60 E61 E65 E66 Control Unit ECU 6924879
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Ford Transit Custom Body Control Module BCM Control Unit ECU JK2T-15604-FAE
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215408745
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Mini One 1.6i R50 W10 90HP Engine ECU Kit DME 7520019 + EWS + Key Automatic
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Starter Motor Ford Transit 2.2 TDCI Diesel Engine BK3T11000FA
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BMW F87 M2 N55 Engine Wiring Loom Harness Injection Valve Ignition 8073593
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Mercedes ML W164 Front Door Module Left N/S Control Unit ECU A1648200385
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BMW G11 G12 G20 G21 G30 G31 F33 F36 Generator Alternator 180A Bosch 8571357
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BMW X3 E83 Telematics Bluetooth Control Unit Module Computer 9207074
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Alternator Mercedes ML W164 GL X164 Diesel OM629 Bosch 14V 220A A6291500450
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Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C
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Audi A4 B9 Engine Starter Motor Actuator Starter 04L911021B
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Roof Antenna Mini Cooper R57 Convertible Cabrio Aerial Base 9149080
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BMW 3 5 7 Series E34 E36 E38 E39 Relay Control Module Unit White 1729004
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Mercedes R171 SLK200 271.944 163HP Engine ECU Kit A2711534691 Key Lock Ignition
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Body Control Module Mercedes W117 W176 W242 W246 Fuse Box Sam A2469008510
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Alternator Mercedes W166 W213 C292 OM651 Generator 14V 250A A0009060903
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Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801
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BMW E90 E91 LCI Wiring Cable Harness Gearbox Transmission Module 8507810
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BMW Z4 E89 2.3i 3.0i N52N Petrol Engine Wiring Loom Harness Cable 7598076
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Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 80A971104A
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Mercedes W169 200CDI OM640.941 140 HP Engine Module ECU Kit A6401502579 Key Lock
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BDC Module Mini Cooper F56 Body Domain Controller Unit Fuse Relay Module 8796101
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Peugeot 207 Display Screen Dashboard Multifunction Monitor Unit 966448398000
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Mercedes W205 W213 C253 Fuse Box Front Relay Control Unit Module A2059065806
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Mercedes SLK R170 W202 W208 ESP Control Unit ABS ASR Module ECU A0195453132
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BMW X3 Z4 E83 E85 CID Control Unit CD Player Radio Audio System 9197131
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BMW E81 E87 E90 E91 LCI Combox Telematics Module 9248179
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Ford Transit MK7 2.2 TDCi Diesel Glow Plug Wiring Loom Cable BK2Q6M091AE
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Mercedes ML W163 Comfort Control Module Central Electronics A1635457332
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Mercedes W205 Towbar Trailer Hitch Control Module Unit ECU HELLA A2049007905
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MINI S R52 R53 W11 170HP Engine Control Unit ECU DME 7557395 Manual Gearbox
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BMW F20 F21 F30 F31 F32 N47N Diesel Alternator 175A 7823343 7823344
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Audi Q7 4L ECU Air Module Control Unit Crash Impact Sensor 4L0910655B
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Mercedes W203 Fuse Box SAM Control Unit Module Relay A2035454501
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Audi TT FV 2.0 TFSI CHHC HV Battery Power Central Distribution Point 8S0915459A
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Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126
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Mini Cooper F54 F56 F60 JCW B48E 306HP Engine ECU Kit DME 5A4C367 BDC Key
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BMW 1 3 5 Series F10 F20 F30 Reversing Camera Rear View Control Unit 9282420
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Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
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Mercedes ML W163 Stability Controller 4ESP Unit Module ECU A1635458032
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Engine Wiring Mercedes W212 Diesel OM651 Cable Loom Harness A6511505933
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Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700196
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Audi TT 8N 1.8T AUQ 180HP Petrol Engine Control Unit ECU 8N0906018CN Automatic
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BMW X3 F25 X4 F26 Central Gateway Module Control Unit Lear ZGW-02 9266410
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BMW X5 E70 Alternator Generator Engine Unit Valeo 220A 14V 7801124
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Mercedes W221 Night Vision System Camera Module Control Unit A2218705885
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BMW E60 E90 E91 E92 LCI 335D 535d M57N2 Engine ECU KIT DDE 7809955 + CAS3 + Key
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527
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Part no. YLE000051
Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE000051
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BMW Z4 E89 Power Distribution Box Control Unit Module With Fuse 9192124
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BMW X5 E70 Front Seat Control Unit Module ECU Left Right N/O/S 9149834
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Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469003818
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475J
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Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186AB
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BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035
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Audi A4 B7 Servotronic Steering Control Unit Module 8E0907307D
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Audi TT FV A/C Air Condition Climate Control Module Unit ECU 8S0820043
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Mercedes ML W164 W251 SAM Module Control Unit ECU A1649004600
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM LR01 ECU 9324784
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Mercedes W213 Front Seat Control Unit Module ECU A2139008309
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Audio Module Mercedes C238 Premium Sound E Control Unit A0009000518
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Mercedes W166 Tailgate Control Module Unit A1669006311
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Amplifier BMW F30 F31 F32 F33 F34 F36 Active Sound Design Audio Module 2448166
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401830
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Mini Cooper R57 Cabrio Convertible Wiring Loom Harness Rear Trunk Lid 9144846
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Mercedes C117 W176 45 AMG 133.980 Engine Control Unit ECU A2709002100 Automatic
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BMW X5 E53 E65 Bulb Parking Light Headlight Front Lighting 12V 10W
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Ford Fiesta Transit Relay 4-Pin Grey FoMoCo Unit 6G9T-14B192-EA SET X2
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BMW X3 E83 1.8d 2.0d N47 Engine Wiring Loom Harness 3452217 3452220
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Porsche Boxster 986 Fuel Pump Relay Control 12V 15A 99661510100
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BMW 5 Series E60 E61 Airbag ECU Control Unit Gateway Module
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Audi A1 8X 1.2 TFSI CBZA Petrol Engine Starter Motor 02T911024JX
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BMW 5 F10 F11 Battery Cable Wiring Harnes Lead Positive Underfloor 9150990
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Mini R60 Cooper SD N47N 143HP Engine ECU Kit DDE CAS3 + Key 8583423 Automatic
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Mini R50 R52 R53 6-Disc CD Changer Multichanger with Magazine 6946989
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Mercedes E-Class W211 Front Door Wiring Loom Harness Rubber Grommet A2118210097
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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 .