What is the construction and purpose of wires, harnesses, and connectors?

Wires, harnesses, and connectors are elements of a car's electrical installation that connect power sources, consumers, sensors, and controllers. A typical set consists of conductive cores, insulation, covers, plugs, pins, and mounting points to the body or equipment. These parts appear in various vehicle zones, from the engine compartment to the interior and trunk lid. Their construction must correspond to the specific circuit and car equipment.

What are wires, harnesses, and connectors used for?

Wires, harnesses, and connectors are used to transmit current and control signals between car components. They are responsible for powering devices, communication between modules, and maintaining stable electrical connections. Without them, lighting, starting, charging, sensors, or onboard electronics would not work properly. Their condition also affects the speed of fault diagnosis and the reliability of installing other electrical elements.

What is the construction and function of an electrical connector in a car?

An electrical connector is an element connecting two sections of an installation or a wire to a specific vehicle component. It usually consists of a housing, contact pins, a latch, and often a seal protecting against moisture and dirt. Its function is to ensure a secure contact and the possibility of safely disconnecting the installation during service. The appropriate type of connector is important for conductivity quality, sealing, and vibration resistance.

How to choose wires, harnesses, and connectors for a specific car version?

It is safest to compare the OEM part number, interchangeable numbers, location on the vehicle, and the body and equipment version. It is also worth checking the number of pins, plug shape, harness routing, and mounting points. For elements supporting several systems, the fuel type and the presence of additional modules are also important.

What symptoms indicate wear of wires, harnesses, and connectors?

Typical symptoms include intermittent power loss, controller errors, blown fuses, unstable lighting operation, and problems with starting selected devices. In practice, insulation cracks, corrosion on contacts, and damage in bending areas are also encountered. Such signals should be immediately compared with the mounting location and the condition of the connections.

How to take care of wires, harnesses, and connectors after installation?

After installation, ensure the harness is routed correctly so it does not rub against sharp edges and is not exposed to excessive bending. It is also important to properly seat all clips, holders, and latches, and to keep the connectors clean. During periodic inspections, it is good to check the condition of the insulation and the tightness of connections in areas exposed to moisture.

Wiring Harnesses, Cables & Connectors

At the Global Parts automotive store, we offer a wide selection of original used car parts, including cables, harnesses and connectors for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The cables, harnesses and connectors we offer undergo quality control so that you can be sure that you are receiving a top-class product.

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Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627M

€23.95

Part no. 7795638

BMW 3 E90 E91 E92 E93 Cable starter-base B Diesel 7795638

€23.95

Part no. 6821203

Battery Cable BMW F45 F46 Negative Lead IBS Wiring Harness 6821203

€23.95

Part no. 8509105

BMW E90 E91 E92 LCI N47N Cable Alternator Starter Base B+ 8509105

€28.95

Part no. 1K0971228T

Volkswagen Scirocco Mk3 Battery Starter Motor Loom Lead 1K0971228T

€23.95

Part no. 7515253

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

€23.95

Part no. 6809545

Mini F56 Interior Electrical Cable Excitement Package Wiring Harness 6809545

€32.95

Part no. A9075406749

Mercedes W907 Battery Electrical Ground Line Wire Earth Cable A9075406749

€23.95

Part no. 8636064

Wiring Cable BMW F20 F30 LCI B48 Engine Injector Ignition Loom 8636064

€85.95

Part no. A2475400600

Mercedes W177 Rear Axle Wheel RPM Speed Right Sensor Wire Harness A2475400600

€23.95

Part no. 8J0971237A

Audi TT 8J Starter Motor Negative Battery Wiring Harness Cable 8J0971237A

€23.95

Part no. 6967184

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

€28.95

Part no. 8XA971679C

Audi A1 8X Dashboard Glove Box Wiring Loom Cable Storage Harness 8XA971679C

€23.95

Part no. 8635815

BMW F20 F30 LCI 118i 318i B38 Gearbox Wiring Loom Harness Cable 8635815

€23.95

Part no. HK72-13444-AA

Land Rover Discovery Sport L550 Rear Tailgate Boot Wiring Loom HK72-13444-AA

€23.95

Part no. 2751265-7

Cable Wiring Mini R55 R56 Headlight Lamp Front Left N/S Plug Socket 6913653

€23.95

Part no. A6394409909

Wiring Loom Mercedes W639 Vito Cable Sliding Door Rear Left N/S A6394409909

€23.95

Part no. 6972611

BMW 5 Series E60 E61 Wiring Rear Left Right Door Cable Harness N/O/S 6982362

€23.95

Part no. A1715403932

Mercedes SLK R171 Rear Bumper PDC Wiring Loom Parking Sensor Cable A1715403932

€37.95

Part no. A2054402834

Mercedes W205 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2054402834

€56.95

Part no. H1BT-15K868-ABE

Ford Fiesta Mk8 Rear Bumper Parking Sensor Wiring Loom Harness H1BT-15K868-ABE

€32.95

Part no. A2055409750

Door Harness Mercedes W205 Rear Left N/S Door Wiring Loom A2055409750

€32.95

Part no. 7638003

BMW F20 F21 F22 F23 F34 LCI F22 F30 F36 Starter Ground Cable 7638003

€23.95

Part no. 7800164

BMW F10 F11 N57 N57S Positive Battery Cable Alternator Starter Lead 7800164

€28.95

Part no. 8514291

Battery Cable BMW X3 F25 X4 F26 B47 Alternator Starter Base B Cable 8514291

€23.95

Part no. A2195404505

Mercedes C219 Coupe Front Bumper Parking Sensor PDC Wiring Harness A2195404505

€89.95

Part no. 6938215

BMW 3 Series E90 E91 Front Right O/S Driver Side Door Wire Wiring Loom 6938210

€23.95

Part no. 8586574

BMW 1 F20 F21 LCI 116d B37 Engine Gearbox Module Wiring Cable Loom 8586574

€94.95

Part no. E92-PDC-WIRING-LOOM-HARNESS-REAR-BUMPER-1

BMW E92 LCI PDC Wiring Loom Harness Rear Bumper

€23.95

Part no. A2044405935

Mercedes W204 Door Card Harness Loom Cable Wiring Front Left N/S A2044405935

€23.95

Part no. 7510921

Mini R52 Cabrio Petrol W10 Engine Wiring Loom Harness Module 7510921

€32.95

Part no. 7631932

Engine Wiring BMW F30 F31 N20 Loom Module Harness Cable 7631932

€75.95

Part no. 9255048

BMW 1 Series E81 E87 E87N Battery Wire Cable Negative Earth Lead 9255048 6929705

€23.95

Part no. GK2T-6M091-AB

Ford Transit Mk8 2.0 Ecoblue Diesel Glow Plug Wiring Loom GK2T-6M091-AB

€23.95

Part no. 8514766

BMW 1 Series F20 114d 116d ed N47N Wiring Harness Engine Glow Module 8514766

€170.95

Part no. 3AA971693CB

VW Volkswagen Passat B7 Rear Door Wiring Loom Harness Left N/S 3AA971693CB

€23.95

Part no. 7549284

BMW 1 3 Series E87 E90 118i 318i N46 Wiring Loom Cable Harness Engine Gearbox

€23.95

Part no. 8473167

BMW F30 F31 F32 LCI 330dX N57N Engine Gearbox Module Wiring Cable Loom 8578498

€28.95

Part no. A2075401102

Mercedes W207 A207 C207 Loudspeaker Cable Wiring Loom Harness

€23.95

Part no. 8678962

Mini Cooper S F55 F56 F57 Petrol Injector Wiring Cable Loom Harness 8678962

€37.95

Part no. 9269956

BMW X1 Series E84 Cable Loom Door Passenger Side Wiring Harness 9269948

€23.95

Part no. 7075907

BMW Z4 E85 Left N/S Contact Bush 7075907

€23.95

Part no. A2124404851

Mercedes W212 Rear Bumper PDC Wiring Parking Sensor Loom Harness A2124404851

€32.95

Part no. 8581872

Engine Wiring BMW F10 F11 N57Z Diesel Gearbox Loom Module Harness 8581872

€42.95

Part no. 8635808

Engine Wiring BMW F20 F30 F31 LCI B38 Loom Module 2 Harness Cable 8635808

€56.95

Part no. 6839821

Battery Cable BMW G01 G02 F97 F98 Positive Plus Pole Lead L= 712MM 6839821

€75.95

Part no. 7599378

Transmission Wiring BMW F20 Petrol N55 Automatic Gearbox- Engine Harness 7599378

€66.95

Part no. A1775407932

Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932

€56.95

Part no. 8J0971035A

Audi TT 8J Door Wiring Loom Harness Cable Driver Side 8J0971035A

€42.95

Part no. 9291731

BMW F10 Seat Wiring Cable Front Right O/S Electrical Loom Harness 9291731

€23.95

Part no. A1635402333

Mercedes-Benz M ML W163 Centre Console Wiring Harness Cable Loom A1635402333

€23.95

Part no. 7843349

BMW F10 F11 LCI M5 F06 F13 M6 S63N Cable Alternator Starter Base B+ 7843349

€28.95

Part no. 9115107-1

BMW X5 Series E70 E70N LCI Wiring Set Wash Water Container Cable Loom 9115107

€23.95

Part no. 5G0971104D

VW Volkswagen Golf Mk7 Wiring Loom PDC Rear Harness Parking Sensor 5G0971104D

€23.95

Part no. 9389229

Mini F57 Cabrio Door Wiring Cable Harness Loom Front Left Right N/O/S 9389229

€23.95

Part no. 3417160

BMW X3 E83 LCI Cable Alternator Starter Base B 3417160

€23.95

Part no. C1BT-14K138-BDF

Ford Fiesta Mk7 Front Door Wiring Harness Cable Left N/S C1BT-14K138-BDF

€23.95

Part no. 8678976

Engine Wiring Mini F56 BMW F40 Petrol B38C Valvetronic Servo Motor Harness

€28.95

Part no. 3412244

BMW X3 E83 Wiring Harness Engine Loom Wire Gearbox Module 3412244

€28.95

Part no. A2465403805

Mercedes W176 W245 Front Left N/S Door Wiring Loom Harness A2465403805

€23.95

Part no. 7243564

BMW F20 F30 Front Sport Seat Backrest Heating Mat Element 7243564

€51.95

Part no. 3412336

BMW X3 E83 Battery Cable Negative Wiring 3412336

€23.95

Part no. 7524715

BMW Z4 E85 Roadster Starter Earth Ground Wire Cable 2.0 Petrol 7524715

€47.95

Part no. 4H22-14301-EA

Land Rover Discovery 3 L319 Negative Battery Cable Wiring Loom 4H22-14301-EA

€28.95

Part no. 7E0971794A-1

Volkswagen Transporter T5 Positive Battery Cable Wire 2.0 TDi CAAA 7E0971794A

€23.95

Part no. A2135406303

Mercedes W213 PDC Parking Sensor Wiring Loom Cable Rear Bumper A2135406303

€28.95

Part no. 7839662

BMW E90 E92 E93 LCI Cable Alternator Starter Base B 7839662

€23.95

Part no. A0009053816

Mercedes C118 W117 Battery Cable Negative Terminal Wiring A0009053816

€23.95

Part no. A2205404208

Mercedes W220 Rear PDC Parking Sensor Wiring Loom A2205404208

€28.95

Part no. A1644400937

Mercedes ML W164 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1644400937

€56.95

Part no. 9237082

BMW F10 F11 Cable Harness Door Driver's Side Right O/S Wiring 9237082

€23.95

Part no. 9286236

BMW F30 Door Wiring Front Passenger Door Loom Cables Harness F31 9286236

€51.95

Part no. 7E0971411

Volkswagen Transporter T5 2.0 TDI Oil Level Sensor Wiring Harness 7E0971411

€47.95

Part no. 5G4971693T

Volkswagen VW Golf Mk7 Rear Door Wiring Harness Cable Loom Left N/S 5G4971693T

€23.95

Part no. 8483814

BMW G20 Starter Wiring Battery Alternator Cable Harness Loom 8483814

€32.95

Part no. 9134855-1

Battery Lead BMW E81 E87 Battery Cable Negative IBS 9134855 61129134855

€23.95

Part no. A1775401731

Mercedes W177 M282 Wiring Harness Battery Starter Motor Alternator A1775401731

€89.95

Part no. 8K0971693B

Audi A4 B8 Rear Door Card Harness Wiring Cable Loom Left Right N/O/S 8K0971693B

€23.95

Part no. 9163173

BMW E60 E61 LCi Right Left Rear Door Wiring Loom N/O/S 9120797

€23.95

Part no. A1695402733

Mercedes W169 W245 Cable Loom Wiring Parking Sensors Rear A1695402733

€28.95

Part no. 7850599

BMW F80 M3 F82 M4 Wheel Accelerator Sensor Cable Rear Axle Suspension 7850599

€28.95

Part no. 6975044

Mini Cooper One R50 Cable Wiring Loom Door Front Left N/S 6962777

€23.95

Part no. 7534705

Mini R50 R52 Ground Battery Cable Alternator Starter 7534705

€23.95

Part no. 8625072

Wiring Loom Mini Cooper F55 F56 Harness Injection Valve Ignition 8625072

€23.95

Part no. 7522234

Mini R50 R52 Battery Cable Negative Wire 7522234 7519551

€23.95

Part no. A6071500133

Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500133

€47.95

Part no. 9253111-1

BMW 1 2 Series F20 F21 F22 Positive Plus Pole Battery Blow Cable Part 9253111

€23.95

Part no. 8604258

Mini Cooper R56 Positive Battery Cable Alternator Lead 8604258

€51.95

Part no. 7627021

BMW 1 3 Series F20 F21 F30 Petrol N13 Harness Engine Sensors Module 1 7627021

€32.95

Part no. 1388277080

Citroen Relay 35L III Positive Battery Wiring Loom Harness Diesel 1388277080

€23.95

Part no. 8L0971035H

Audi A3 S3 8L Front Door Card Panel Wiring Harness Right O/S 8L0971035H

€23.95

Part no. A6511501433

Mercedes W176 W246 Glow Plug Wiring Harness Loom OM651 Engine A6511501433

€23.95

Part no. 8586571

BMW 1 3 F20 F30 LCI B47 Engine Gearbox Module Wiring Cable Loom Harness 8586571

€66.95

Part no. 7248911-1

BMW F20 F21 F22 F30 F31 Fog Light Lamp Wiring Harness Plug Left N/S 7248911

€23.95

Part no. 5Q0971228AC

Audi Q2 GA Volkswagen T Roc Battery Terminal Positive Cable 5Q0971228AC

€23.95

Part no. A1695400606

Mercedes-Benz A W169 Parktronic Parking Sensor Wiring Cable Rear PDC A1695400606

€23.95

Part no. 8R0971693B

Audi Q5 8R Rear Door Card Wiring Loom Left Right N/O/S 8R0971693

€23.95

Part no. 9128573

BMW 1 Series E87 LCI E87N Cable Set PDC Front Wiring Loom 9128573

€42.95

Part no. A6395406209

Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406209

€23.95

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