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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Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Lucas LRA02970
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ECU Engine Control BMW E81 E87 E90 LCI 118d 318d N47 Diesel DDE 7823422 Manual
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SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305
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Radio Player Mercedes W204 Audio 20 Navi CD Player Head Unit A2049006003
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Mercedes W163 ECU Start Engine Control Unit Immobilizer Ring A1635454032
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Peugeot 207 Negative Battery Terminal Cable Wiring Electrical Cable 9665205380
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BMW 3 5 E60 E61 E90 LCI 1 Display Screen 8.8" Monitor Sat Nav 9193745
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Mercedes W164 ML320 CDI 4-Matic OM642.920 Engine ECU Kit A6421506100 Key Lock
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Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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BMW E90 E91 E92 CCC Navi DVD System Controller 6981569
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Starter BMW G20 G21 G30 G31 G01 Engine Starter Motor 8671504
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BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V5 REM 9293313
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Mercedes Vito W639 OM646.980 111 CDI 116HP Engine ECU Module A6461500400 Manual
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BMW Z4 Series E89 LED Xenon Footwell Light Module Control Unit ECU FRM3R 9340337
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Engine Control Kit DDE 8518167 Manual
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GM Vauxhall Opel Relay 4-Pin Glow Plug Unit Black Tyco 90464760
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BMW F45 X1 F48 Mini F60 Automatic Gearbox Module Control Unit EGS 8627098
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Mercedes R171 SLK200 M271.944 163HP Engine Control ECU A2710106644 Automatic
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BMW X3 G01 Fuse Relay Box Control Unit ECU 6828076 8795477
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Door Wiring Mercedes W176 W246 Front Passenger Side Cable Harness A2465403505
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BMW E39 Radio Business Cassette Player 6958566 8377005
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BMW X5 E53 4.4i 4.6is M62 Water Cooled Alternator Generator 150A
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Volkswagen Sharan 7N Sliding Door Locking Catch Plate Left N/S 7N0843639
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BMW E87 Light Module ECU PL2 FRMFA 61359128183 9128183 9128223
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Audi A3 8P 1.6 TDI 105HP CAYC Diesel Engine ECU Kit 03L906023M 2 Keys Manual
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Mercedes W203 W210 W211 Starter Motor Diesel Engine Remy A0051511301
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BMW E60 E87 LCI E90 120d 320d 520d N47 ECU Kit Control Unit DDE 7809000 CAS3 Key
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BMW 1 Series F20 Rear Module Fuse Box Power Distribution Control 9362397
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit Module ECU AC11-12A650-BA
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Audi A6 C6 Adaptive Suspension Software Module Control Unit ECU 4F0910553D
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BMW E87 LCI E90 320i N43 170HP ECU Engine Control Unit DME 7580279 Manual
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Mercedes SLK R172 Relay Fuse Box Control Unit A1725400950
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BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8578946 Automatic
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Smart ForTwo C453 Bonnet Hood Opening Release Sensor 296B20856R
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Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key
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Navigation Head Unit BMW E60 E61 CCC CD Sat Nav Player System Controller 9170702
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Parking Sensor Mini Cooper F54 F55 F56 F57 F60 PDC Ultrasonic Black 9274428 SET
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Alternator Mercedes W166 W213 C292 OM651 Generator 14V 250A A0009060903
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BMW E81 E87 E90 LCI 118d 318d N47 Diesel ECU KIT DDE CAS3 Key 8506375
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Mercedes-Benz A B Class W169 W245 SAM Control Module Fuse Box A1699004800
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Mini Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS 3 + Key Manual
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BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 6843898
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BMW 7 Series F01 LCI ECU Body Control Module Junction Box JBBFEIII V5 9286940
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Volkswagen VW Golf Mk7 Front Radar Distance Control Unit Module 3QF907561D
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BMW X5 E70 Front Bumper PDC Wiring Loom Cable Harness 6970675
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Part no. Mini Lodgesons
MINI Cooper R50 Lodgesons Steering Wireless Control Unit Module System
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Transmission Module Mercedes C117 AMG Petrol OM133 Gearbox Control A0009002010
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Ford Focus Mk3 Radio Stereo CD Player Head Unit F1BT-18C815-LK
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BMW Z4 E85 Positive Battery Clamp Fuse Box Cable Wiring 6958138
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BMW 5 F11 Touring Body Control Module ECU Junction Box V7 PL6 JBBFE III 9286943
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BMW E90 E91 LCI 318d Diesel 143HP N47N ECU Kit DDE 8518268 + CAS3 + Key Manual
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Part no. 5Q0906121F
Audi Q3 8U 2.0 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121F
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Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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Mini R60 R61 Ultra Sonic Module Alarm System Sensor 9806332
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Mercedes W163 Fuse Main Box Relay Comfort Control Module Unit CMM A1635450205
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Peugeot 5008 2.0 HDI DW10C Diesel Engine Control Unit ECU 9667082380
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Mercedes W204 C207 W212 E250CDI OM651.924 204HP Engine ECU A6519007500 Automatic
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Mini Cooper One R50 Petrol W10 W11 Engine Control Unit DME 7520019 Manual
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BMW F07 F10 F11 X6 F16 Rear Cabin Entertainment Audio CD DVD Player 9368387
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Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121536379 Key Automatic
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Mercedes W221 Sound Audio Amplifier Control Unit Module A2218207689
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Mercedes W204 C220CDI BlueEFFICIENCY OM651.911 Engine ECU A6519007500 Automatic
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Mercedes W176 A200 CDI OM651 136HP Engine Module ECU Unit A6519007003 Automatic
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Audi A5 8T BCM Body Comfort Convenience Module Unit ECU 8K0907289C
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Mercedes-Benz A B Class W169 W245 Sam Control Module Fuse Box Unit A1695454332
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VW Volkswagen Touran Golf Polo Interface Module Multimedia Control 5N0035342B
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Audi RS3 8P 2.5 TFSI CEPA Quattro 340HP Engine Unit ECU Kit 8P0907404 Automatic
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Mini Cooper D R55 R56 LCI N47N 112HP Diesel Engine ECU Kit DDE 8512415 CAS3 Key
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Mercedes CL203 CLC200 CDI 122HP M646.963 Engine ECU Kit A6461501934 Key Lock
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BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine ECU Kit DDE 8576341 Manual
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BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
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VW Volkswagen Golf Mk5 Rear Tailgate Wiring Harness Cable Left N/S 1K6971147Q
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 Manual
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Mercedes W169 A200 M266.960 136HP Engine Control Unit ECU A2661534779 Automatic
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AdBlue Module BMW G20 G21 G30 G31 X3 G01 Control Unit ECU SCR 9423397
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Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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BMW 1 Series F20 F21 114i N13 Engine Control Unit ECU Module DME 8614302 Manual
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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 .