What is the construction and purpose of automotive electrical systems?

Automotive electrical systems are a set of components responsible for starting, charging, powering consumers, and controlling vehicle electronics. They include, among others, the battery, alternator, starter, fuses, relays, controllers, and wiring harnesses. These components are located in different parts of the car and work together through connectors and signal buses.

What are automotive electrical systems used for?

Automotive electrical systems are used to supply energy and transmit control signals to vehicle components. Thanks to them, it is possible to start the engine, charge the battery, and operate lights, windows, air conditioning, and safety systems. A fault in one circuit can affect not only comfort but also the correct operation of other modules.

What role does the wiring harness play in a car?

The wiring harness is an organized set of wires, covers, and connectors that connects individual consumers and controllers in the vehicle. It is used to transmit power, ground, and signals between modules. Its construction depends on the body version, equipment, and mounting location, so when replacing it, you must compare the wire routing, plug type, and number of pins.

How to choose an electrical part for a specific car?

The safest way is to compare the OEM number, manufacturer number, connector type, and mounting location. It is also worth considering the engine version, year of manufacture, body type, and equipment, as the same model may have different variants of the alternator, starter, or controller. In practice, verification by VIN is very helpful.

What symptoms indicate a problem with the electrical system?

Typical signals include difficulty starting, flashing warning lights, dimming lights, unstable charging, or the failure of selected consumers. In some cases, controller errors, air conditioning malfunctions, or periodic power outages also occur. Symptoms must always be linked to a specific circuit and cooperating component.

How to take care of automotive electrical systems in daily use?

The basis is regular inspection of the battery condition, terminals, ground wires, and charging. It is also good to check the tightness of housings, the condition of harness insulation, and the cleanliness of contacts exposed to moisture. A quick reaction to the first symptoms of voltage drops or electronic errors makes it easier to avoid a major failure.

Automotive electrical systems

At 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 S3 8P Xenon Headlight Range Control Module Unit ECU 8P3907357B

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Part no. A9079006906

Mercedes Sprinter W907 W910 Ignition Lock Control Unit Module ECU A9079006906

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MINI Cooper R58 R59 Aerial Antenna Amplifier Module Rod 3456397

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Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604A

€37.95

Free delivery: Sep 14 – 15

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Fuse Box Mercedes W177 Relay Fuse Box COntrol Module Unit A1779061102

€66.95

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BMW F20 F21 F30 F32 LCI Headlight Ballast Control Unit Module FLE2 LOW 8494840

€94.95

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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9374510

€23.95

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BMW G11 G12 G30 G32 G14 Starter Cable Alternator Cable Starter-Base B+ 8595355

€29.95

Free delivery: Sep 14 – 15

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Mercedes-Benz A B W169 W245 Front Right Door O/S Control Unit Module A1698208426

€23.95

Free delivery: Sep 14 – 15

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Part no. 8506442-1

BMW E81 E87 LCI 123d Petrol N47S 204HP ECU Kit DDE 8506442 CAS3 Key Automatic

€256.95

Free delivery: Sep 14 – 15

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Part no. 5K0959655

Volkswagen VW Golf Mk6 5K Air Module Control Unit ECU 5K0959655

€23.95

Free delivery: Sep 14 – 15

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BMW Z4 E85 E86 Basic Body Control Unit Module GM5 Star12 LOW 9116445

€170.95

Free delivery: Sep 14 – 15

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Part no. A6519007003

Mercedes W176 A200 CDI OM651 136HP Engine Module ECU Unit A6519007003 Automatic

€51.95

Free delivery: Sep 14 – 15

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Bluetooth Module BMW F10 F20 F23 F30 Teleservices GPS Telematics Control 2622610

€32.95

Free delivery: Sep 14 – 15

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BMW F31 N47N 320d Engine Wiring Harness Module Diesel 8507899 8507896

€66.95

Free delivery: Sep 14 – 15

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Mercedes W213 C238 Telematic Charging Phone Control Module A2139006911

€47.95

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Part no. 9117847

PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 9117847

€23.95

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Part no. A0009004710

PDC Module Mercedes W205 X253 Parking Sesnor Assist Control Module A0009004710

€37.95

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Mini Cooper One R55 R56 R57 LCI R60 R61 CHAMP 2 Navigation DAB 3457441

€284.95

Free delivery: Sep 14 – 15

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BMW F13 Footwell Light Module Control Unit ECU FRM3 9313933

€66.95

Free delivery: Sep 14 – 15

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Part no. 5QA919294C

Audi Seat Skoda Volkswagen PDC Parking Sensor Control Unit Module 5QA919294C

€23.95

Free delivery: Sep 14 – 15

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Part no. A1699000700

Mercedes A B Class W169 W245 Door Control Module Front Right O/S A1699000700

€23.95

Free delivery: Sep 14 – 15

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Part no. 9346806

BMW F01 F02 F03 LCI F06 F10 F13 Antenna Amplifier Diversity 868 MHZ 9346806

€32.95

Free delivery: Sep 14 – 15

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Part no. 9224588

BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588

€161.95

Free delivery: Sep 14 – 15

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Part no. 8573260-6

BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8573260 + Key + FEM Manual

€227.95

Free delivery: Sep 14 – 15

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Part no. 9162930-WB1

BMW E81 E82 E87 E90 E91 Parking Sensor PDC Ultrasonic Bluewater - 896 SET X2

€23.95

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BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module

€23.95

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Ford Transit Mk7 Engine Cooling Fan Radiator Module Control Unit 940002904

€23.95

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Parking Distance Assistant BMW 20 F21 F30 F31 F36 Control Unit Module 6857208

€42.95

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Module Mercedes C205 Front Door Left N/S Control Module Unit A2229001414

€28.95

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Part no. 06L971627K

Audi TT FY 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06L971627K

€23.95

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Part no. 6901269

BMW X3 Z4 Series E83 E85 E86 Base B Positive Battery Terminal Cover Compartmen

€23.95

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Part no. A1669000318

Mercedes-Benz A B Class W176 W246 Front Left N/S Door Control Unit Module ECU

€23.95

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BMW 5 Series F10 ECU Body Control Module V2 Junction Box 61359228491 9228491

€66.95

Free delivery: Sep 14 – 15

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Part no. A1729058200

Mercedes W204 W207 W212 W221 Humidity Temperature Sensor Unit A1729058200

€23.95

Free delivery: Sep 14 – 15

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Part no. A1669000618

Mercedes-Benz A B Class W176 W246 Front Right Door O/S Control Unit Module ECU

€23.95

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Seat Module Mercedes W205 W253 Memory Control Unit Passenger's Side A2059005222

€47.95

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Part no. 8H0959985B

Audi Q7 4L Keyless Module ECU Door Lock Control Unit 8H0959985B

€23.95

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VW Volkswagen Scirocco Mk3 Air Module Control Unit ECU 1K0909605AE

€23.95

Free delivery: Sep 14 – 15

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Part no. 5Q0919294E

Volkswagen Golf Mk7 PDC Parking Distance Control Module Unit ECU 5Q0919294E

€23.95

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Starter Motor Volkswagen VW Golf VI Passat B6 Tiguan Diesel Engine 02M911024

€37.95

Free delivery: Sep 14 – 15

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Mercedes-Benz W176 W205 W207 W213 Bluetooth Control Unit Module ECU A2139002210

€23.95

Free delivery: Sep 14 – 15

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Fuse Box Mercedes W205 Front Passenger Side Footwell Fuse Box A2225403150

€23.95

Free delivery: Sep 14 – 15

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Part no. A6519007500-3

Mercedes W204 C220CDI BlueEFFICIENCY OM651.911 Engine ECU Kit A6519007500 Key

€313.95

Free delivery: Sep 14 – 15

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Part no. 0C8927750AL

Audi Q7 4L 3.0 TDI Automatic Gearbox Module Control Unit ECU Diesel 0C8927750AL

€170.95

Free delivery: Sep 14 – 15

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Part no. 6967184-1

BMW X5 E70 Positive Battery Cable Terminal Box Base B+ X6 E71 6967184

€23.95

Free delivery: Sep 14 – 15

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Part no. A0009053006

Battery Wire Mercedes W205 Negative Cable With Battery Sensor 48V A0009053006

€89.95

Free delivery: Sep 14 – 15

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Part no. 7436676

Adblue Module BMW F10 F11 LCI X5 F15 X6 F16 Control Unit ECU SCR 7436676

€33.95

Free delivery: Sep 14 – 15

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Part no. A9065450003

Fuse Cover Mercedes Sprinter W906 Box Trim Panel Lid Grey A6395450003

€23.95

Free delivery: Sep 14 – 15

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Part no. 6G9T-14B192-EA-1

Ford Fiesta Transit Relay 4-Pin Grey FoMoCo Unit 6G9T-14B192-EA SET X2

€23.95

Free delivery: Sep 14 – 15

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Part no. 7570487

Mini Cooper One R50 R52 Starter Motor 0,9KW BOSCH 4542741

€28.95

Free delivery: Sep 14 – 15

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Computer Mercedes W205 X253 W447 Navigation Radio Player Head Unit A2059001722

€118.95

Free delivery: Sep 14 – 15

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Part no. 8K0959795F

Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795F

€23.95

Free delivery: Sep 14 – 15

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Mini Cooper R57 R58 Antenna Bumper Mounted FM/DAB Wiring 3453590

€23.95

Free delivery: Sep 14 – 15

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Peugeot Boxer II Citroen Relay III Fuse Box Control Unit Module 46858322

€284.95

Free delivery: Sep 14 – 15

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BMW 5 Series E60 E61 Positive Battery Cable Plus Pole Lead 61126971219 6971219

€23.95

Free delivery: Sep 14 – 15

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Part no. A2048702789

Aerial Antenna Amplifier Mercedes W204 Estate Left N/S Booster Unit A2048702789

€23.95

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Mercedes W204 Door Module Control Unit Module Front Left N/S A2048704326

€23.95

Free delivery: Sep 14 – 15

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Part no. A2115455301

Fuse Box Mercedes W211 Rear Trunk Module Relay Fuse Box SAM A2115455301

€37.95

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Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595K

€23.95

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Skoda Yeti 5L VW Golf Mk6 Air Module Crash Impact Sensor Control 5K0959354

€23.95

Free delivery: Sep 14 – 15

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Part no. 6923209

BMW X5 E46 E53 Alarm System Inclination Indicator Module Unit 6923209

€23.95

Free delivery: Sep 14 – 15

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Part no. 8512292

BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Manual

€56.95

Free delivery: Sep 14 – 15

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VW Volkswagen Touran 1T 1.4 TSI Starter Motor Petrol Engine Unit 02Z911023G

€23.95

Free delivery: Sep 14 – 15

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Part no. 9139868

BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Schwarz Black 9139868

€23.95

Free delivery: Sep 14 – 15

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BMW F20 F21 F30 F31 N47N Wiring Loom Harness Engine Gearbox Module 8585642

€56.95

Free delivery: Sep 14 – 15

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Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655A

€75.95

Free delivery: Sep 14 – 15

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Genuine BMW 5 X5 Series E39 E53 Aerial Trap Circuit Antenna Noise Filter

€23.95

Free delivery: Sep 14 – 15

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Mercedes GLA X156 Interior SRS Air Module Seat Belt Tensioner A1179001702

€127.95

Free delivery: Sep 14 – 15

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Part no. A0009003210

PDC Module Mercedes W176 W246 Parking Assist Distance Control Unit A0009003210

€28.95

Free delivery: Sep 14 – 15

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Part no. 6824108

BMW F30 LCI 330e Hybrid High Voltage EDH Wiring Cable Wire 6824108

€32.95

Free delivery: Sep 14 – 15

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Mini F54 F55 F56 F57 F60 Petrol B36 B38 B46 B48 Engine Starter Motor 7645979

€23.95

Free delivery: Sep 14 – 15

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BMW F20 F21 F30 F31 116d 316d 118d 318d Diesel N47N Engine ECU 8573258 Manual

€23.95

Free delivery: Sep 14 – 15

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Part no. 6798872

BMW F10 F11 F30 F31 Wheel Electronics Module RDC 433MHZ Control Unit 6798872

€23.95

Free delivery: Sep 14 – 15

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Part no. A0009006516

Bluetooth Module Mercedes S205 W205 W177 Active Parking Assist Control Rear

€47.95

Free delivery: Sep 14 – 15

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Part no. 7567776

Starter Cable BMW E81 X1 E84 E87 E90 N52 Alternator Battery Wire B 7567776

€23.95

Free delivery: Sep 14 – 15

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Part no. 8586544

BMW F25 F26 35dX N57Z 313HP Diesel Control Unit Module ECU DME 8586536 Automatic

€161.95

Free delivery: Sep 14 – 15

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Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200

€23.95

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BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Control Unit Module 6868598

€23.95

Free delivery: Sep 14 – 15

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BMW Mini Cooper One R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 Earth Ground Cable

€23.95

Free delivery: Sep 14 – 15

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BMW F21 F22 Wiring Loom Door Drivers Side Front Right O/S 9340973

€23.95

Free delivery: Sep 14 – 15

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Seat Leon 5F Rear Bumper Wiring Loom PDC Harness Parking Sensor 5F4971194A

€23.95

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Part no. A2055402992

Mercedes W205 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2055402992

€47.95

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BMW F20 F21 F30 F31 N47N 116d 316d ECU Control Unit Module DDE 8518569 Manual

€56.95

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Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D

€28.95

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Mercedes Sprinter W907 W910 Battery Sensor Cable Negative Terminal A9079053907

€23.95

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€23.95

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Mercedes W205 Park Parking Assist PDC Distance Control Unit Module A0009003806

€89.95

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Part no. 9663528880

Citroen C4 Peugeot 3008 Starter Motor Engine Diesel 9663528880

€23.95

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Part no. A2135406200

Fuse Box Mercedes W213 S213 W238 Rear Electrical Control Unit Module A2135406200

€23.95

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Part no. 6864923

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU Control Unit 6864923

€23.95

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Part no. A2034404532

Mercedes CLC-Class CL203 Rear Parking Sensor Wiring Loom Cable PDC A2034404532

€23.95

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Bluetooth Module Mercedes W176 W213 Control Unit Hands Free A2139008013

€23.95

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BMW X5 X6 Series E70 E71 Airbag Control ECU Unit Module 9165623

€23.95

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Door Module Mercedes W204 W212 Front Right O/S Control Unit VST A2128203785

€23.95

Free delivery: Sep 14 – 15

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Part no. A2129004414

Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129004414

€23.95

Free delivery: Sep 14 – 15

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Part no. A1779003806

Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779003806

€28.95

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BMW F20 F30 F32 120d 320d 420d N47N 184HP Engine Unit ECU DDE 8518568 Automatic

€89.95

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