What is the construction and purpose of fuses and fuse boxes?

Fuses and fuse boxes are components of a car's electrical installation responsible for protection and power distribution to individual circuits. A typical fuse contains a fusible link with a specific current rating, and a fuse box has sockets, connectors, circuit descriptions, and often spaces for relays. These elements are mounted in the cabin, engine compartment, or trunk, depending on the vehicle version.

What are fuses and fuse boxes used for?

Fuses and fuse boxes are used to protect wires and power consumers from the effects of overloads and short circuits. Their task is also to organize electrical circuits, which facilitates diagnostics and replacement of a damaged element. Without efficient protection, a failure in one circuit can affect the operation of lights, radio, air conditioning, or control modules.

What is the construction and function of a car electrical relay?

A car electrical relay is a control element that uses a small current to switch a higher-load circuit on or off. It usually consists of a housing, a coil, working contacts, and terminals fitting into a socket in the box. The cooperation of the relay with the fuse box allows for proper power supply to systems such as fans, heating, or selected comfort modules.

How to choose the right fuse box for a car?

It is best to compare the OEM part number, interchangeable numbers, mounting location on the vehicle, and connector type. It is also worth checking the engine version, equipment, and any differences between pre-facelift and post-facelift models. For boxes integrated with relays, the completeness of the relay configuration and pin layout compatibility are also important.

What symptoms indicate a problem with a fuse or fuse box?

A typical symptom is the sudden failure of one device or a whole group of consumers, for example, lights, wipers, or the radio. In the case of a fuse box, there may be power interruptions, traces of overheating, corroded contacts, or loose sockets. Repeated fuse blowing usually means that you also need to check the installation and the component powered by the given circuit.

How to maintain fuses and fuse boxes after installation?

After installation, it is worth periodically checking the cleanliness of the housing, the condition of the cover, and the absence of moisture traces at the connectors. Do not replace a fuse with an element of a higher rating than specified by the manufacturer. It is also good practice to compare the circuit description with the actual car equipment after every major installation repair.

Fuses and fuse boxes

At Global Parts, we offer a wide selection of original used car parts, including fuses and fuse boxes for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Our fuses and fuse boxes undergo quality control to ensure you receive a top-quality product.

More information

Find it faster

Match to your vehicle

Make

Range Rover Sport L320 Fuse Box Control Module Unit YQE500420

Product currently unavailable

Part no. A4475401440

Mercedes Vito W447 Fuse Box Relay Control Unit Module A4475401440

Product currently unavailable

Part no. 9636079380

Fuse Box Peugeot 207 308 Battery Terminal Control Unit Module 9636079380

Product currently unavailable

Part no. BK2T-14A075-AB

Ford Transit Custom Engine Bay Fuse Relay Box Cover Top Lid BK2T-14A075-AB

Product currently unavailable

Part no. DH52-14F041-AF

Land Rover Freelander 2 L359 Fuse Box Relay Control Unit DH52-14F041-AF

Product currently unavailable

Part no. 9813233

Mini Cooper Countryman R60 Fuse Distribution Box SPEG High 9813233

Product currently unavailable

Part no. 4F0937503

Audi A6 C6 R8 42 Dashboard Fuse Box Electrical Relay Unit 4F0937503

Product currently unavailable

Part no. A2049000902-1

Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902

Product currently unavailable

Part no. 8X0971845A

Audi A1 8X Fuse Relay Box Electrical Control Unit Module 8X0937124

Product currently unavailable

Part no. A2215402250

Mercedes W221 SAM Relay Fuse Box Module Control Unit ECU A2215402250

Product currently unavailable

Part no. A2035400050

Fuse Box Mercedes SLK R171 W203 W209 Front Relay Control Unit A2035400050

Product currently unavailable

Part no. 3457168

Mini Cooper R58 Fuse Distribution Box PL3 SPEG H8 DC/DC 3457168

Product currently unavailable

Part no. 5WA907361A

Volkswagen Golf Mk8 Audi S3 RS3 8Y Relay Electrical Fuse Box 5WA907361A

Product currently unavailable

Part no. A1715450901

Mercedes SLK R171 Front Fuse Box SAM Relay Control Unit Module A1715450901

Product currently unavailable

Part no. CPLA-14K131-AA

Land Rover Range Rover L405 Battery Fuse Box Unit Terminal CPLA-14K131-AA

Product currently unavailable

Part no. 6906621-1

BMW E87 E90 E91 E92 E93 Fuse Box Power Distribution Front 6906621

Product currently unavailable

Part no. A9065454701

Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701

Product currently unavailable

Part no. 6936655

BMW 1 3 X1 Series E81 E82 E84 E87 E90 E91 E92 Power Distribution Box 6936655

Product currently unavailable

Part no. 9683140380

Air Intake Duct Peugeot 3008 Air Intake Channel Unit Duct 9683140380

Product currently unavailable

Part no. 5C0937819R

Volkswagen Beetle 5C Fuse Box Relay Module Unit 5C0937819R

Product currently unavailable

Part no. A2115458601-1

Fuse Box Mercedes W211 CLS C219 Rear SAM Module Relay Control Unit A2115458601

Product currently unavailable

Part no. A0009060086

Mercedes W205 Control Unit Power Distribution Box Electrical A0009060086

Product currently unavailable

Part no. 1757525

Ford Transit Mk7 V Fuse Box Loom Wiring Harness Under Bonnet Unit CC1T9K499MLE

Product currently unavailable

Part no. A2095452001

Mercedes CLK C209 Fuse Box Relay SAM Module Control Unit A2095452001

Product currently unavailable

Part no. 1J0937617-1

Audi A3 8L Fuse Box Battery Terminal Control Unit Module 1J0937617

Product currently unavailable

Part no. 3455241

Mini Cabrio R57 PL3 SPEG H4 Fuse Control Unit Module Distribution Box 3455241

Product currently unavailable

Part no. 9809590-1

Mini Countryman R60 Fuse Distribution Box PL3 SPEG H7 DC/DC 9809590

Product currently unavailable

Part no. A2129003825

Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2129003825

Product currently unavailable

Part no. A2229063202

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

Product currently unavailable

Part no. AH22-14F041-BH

Land Rover Discovery 4 L319 Fuse Relay Box BCM AH22-14F041-BH

Product currently unavailable

Part no. A2075401850

Fuse Box Mercedes W204 Battery Terminal Control Unit Module A2075401850

Product currently unavailable

Part no. A2129009025

Mercedes W212 Fuse Box Front Relay Control Unit Module SAM A2129009025

Product currently unavailable

Part no. A4475460064

Mercedes W447 Fuse Box Module Cover Trim Trunk A4475460064

Product currently unavailable

Part no. 8N0937550A

Audi TT 8N Battery Fuse Box Power Distribution 8N0937550A

Product currently unavailable

Part no. A9065454401

Mercedes Sprinter W906 Fuse Box Relay Module Control Unit A9065454401

Product currently unavailable

Part no. 9812535

Mini Cooper Countryman R60 Fuse Distribution Box Module 9812535

Product currently unavailable

Part no. A0005404750

Mercedes-Benz S CL Class W220 C215 Fuse Box Battery Connector A0005404750

Product currently unavailable

Part no. rhd-9136726-1

BMW Mini Cooper One R55 R56 1 Multifuse B Battery Power Distributor 9136726

Product currently unavailable

Part no. A2059008204

Mercedes W205 SAM Module Fuse Box Relay Control Unit A2059008204

Product currently unavailable

Part no. A4475404326-1

Mercedes Vito W447 Fuse Relay Box Control Module A4475404326

Product currently unavailable

Part no. BK2T-9K499-ACH

Ford Transit Custom Fuse Box Loom Harness Wire 2.2 TDCi CYFF Mk8 BK2T-9K499-ACH

Product currently unavailable

Part no. 7633242-1

BMW F10 F20 F30 Integrated Relay Power Supply Module Distribution Box 7633242

Product currently unavailable

Part no. 3451924

BMW Mini Cooper R56 High SPEG PL3 DC/DC M2 Fuse Distribution Box 3451924

Product currently unavailable

Part no. A2125407050-1

Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050

Product currently unavailable

Part no. 5B31359

BMW i4 G26 Fuse Box Front Body Control Module ECU BCM Unit 5B31359

Product currently unavailable

Part no. 6920035

BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035

Product currently unavailable

Part no. A2049060105-2

Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105

Product currently unavailable

Part no. A2115457301

Mercedes C219 Front Fuse Box SAM Relay Control Module A2115457301

Product currently unavailable

Part no. 7P0937548F

Porsche Cayenne 92A Battery Distribution Fuse Box Relay Module 7P0937548F

Product currently unavailable

Part no. F1FT-14014-ALA

Ford Focus Mk3 BCM Body Control Module Fuse Box F1DT-14A073-DF

Product currently unavailable

Part no. 3456905

Mini R56 LCI Fuse Relay Distribution Box PL3 SPEG H4 3456905

Product currently unavailable

Part no. A1695456332-1

Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332

Product currently unavailable

Part no. 6R8T-14A094-AA

Ford Transit Mk8 Battery Fuse Box Fusebox 400 AMP MEGA Fuse AJ126 6R8T-14A094-AA

Product currently unavailable

Part no. A2075401850-1

Mercedes C207 Fuse Box Prefuse Battery Terminal Control Unit Module A2075401850

Product currently unavailable

Part no. A2319007707

Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2319007707

Product currently unavailable

Part no. 3C0937125A-1

VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A

Product currently unavailable

Part no. A2049009501

Fuse Box Mercedes W204 Rear SAM Relay Control Unit Module A2049009501

Product currently unavailable

Part no. A2129006012

Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2129006012

Product currently unavailable

Part no. 3456855

BMW Mini Cooper R55 LCI PL3 SPEG H5 Fuse Distribution Box 3456855

Product currently unavailable

Part no. A2129006724-1

Fuse Box Mercedes W204 S204 W212 SAM Control Unit Module Relay A2129006724

Product currently unavailable

Part no. 3455238

Mini Clubman R55 Fuse Box Relay Unit Module Control Unit 3455238

Product currently unavailable

Part no. 1308204070

Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 1308204070

Product currently unavailable

Part no. A0005400950

Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950

Product currently unavailable

Part no. 6906598

Mini Cooper One R50 R52 R53 JCW Fuse Relay Electrical Box Housing 6906598

Product currently unavailable

Part no. 6C1T14A076C

Ford Transit Fuse Box Cover Housing Lid Trim Cap 6C1T14A076C

Product currently unavailable

Part no. A2035400050-1

Mercedes SLK R171 W203 W209 Front Fuse Box Relay Control Unit A2035400050

Product currently unavailable

Part no. A2035451701

SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701

Product currently unavailable

Part no. BK2T-14A175-AA

Ford Transit Mk8 Engine Bay Fuse Box Unit Wiring Loom Harness BK2T-14A175-AA

Product currently unavailable

Part no. 9192124

BMW Z4 E89 Power Distribution Box Control Unit Module With Fuse 9192124

Product currently unavailable

Part no. 9177209-2

BMW 1 3 X1 E81 E82 E84 E87 E90 E91 E92 2 Radio Business CD Audio Player 9177209

Product currently unavailable

Part no. A1699010100-1

Fuse Box Mercedes W169 W245 Sam Control Module Unit ECU A1699010100

Product currently unavailable

Part no. A2219005801

Mercedes W221 Fuse Box Relay Module Driver Side A2219005801

Product currently unavailable

Part no. 8380409

BMW X5 E53 Fuse Distribution Box Relay Board 6907395 8380409 6909721

Product currently unavailable

Part no. A1649005001

Mercedes ML W164 Sam Control Module Fuse Box Unit A1649005001

Product currently unavailable

Part no. A2135401115

Fuse Box Mercedes W205 W213 GLC X253 Hybrid Power Distribution Unit A2135401115

Product currently unavailable

Part no. 3456911

Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3456911

Product currently unavailable

Part no. 9240508

Fuse Map BMW X5 X6 E70 E71 Assignment Grouping Card 9240508

Product currently unavailable

Part no. A2129000004-2

SAM Module Mercedes W212 Fuse Box Relay Control Unit A2129000004

Product currently unavailable

Part no. A2035453201

Mercedes-Benz C CLK W203 C209 Sam Control Module Fuse Box Rear A2035453201

Product currently unavailable

Part no. A2035453501

SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501

Product currently unavailable

Part no. A6395450003

Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003

Product currently unavailable

Part no. A2469067200

Fuse Box Mercedes CLA C117 X156 W176 W246 Relay Unit A2469067200

Product currently unavailable

Part no. lhd-A2215400224

Mercedes W221 S500 OM273 Fuse Relay Box Module Housing Cover A2215400224

Product currently unavailable

Part no. 7P0937548H-1

Porsche Cayenne 92A Battery Distribution Fuse Box Relay Module 7P0937548H

Product currently unavailable

Part no. A1645450201

Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201

Product currently unavailable

Part no. YQE500300

Land Rover Discovery 3 Range Rover Sport Body Control ECU Fuse Box YQE500300

Product currently unavailable

Part no. 7M5T-14A073-DB

Ford Focus Mk2 Body Control Module BCM Fuse Box Unit 7M5T-14A073-DB

Product currently unavailable

Part no. A2215401682

Mercedes W221 Cover Fuse Box Case Trim Panel Lid A2215401682

Product currently unavailable

Part no. A1645402972

Mercedes W164 Fuse Box Holder A1645402972

Product currently unavailable

Part no. 9813621

Mini Countryman R60 Fuse Distribution Box SPEG High DC/DC H7 9809382

Product currently unavailable

Part no. A0005408250

Fuse Box Mercedes W205 W213 C238 C253 Control Unit Module A0005408250

Product currently unavailable

Part no. 8378107

BMW X5 Series E53 Electrical Power Distribution Fuse Box 8378107

Product currently unavailable

Part no. A1685400082

Mercedes-Benz A-Class W168 Control Box Unit Cover Front A1685400082

Product currently unavailable

Part no. 4F0915459

Audi A6 C6 Battery Positive Plus Pole Terminal Lead Overload 4F0915459

Product currently unavailable

Part no. A2139003029

Mercedes A238 Fuse Box Control Unit SAM Module Relay A2139003029

Product currently unavailable

Part no. A2475407600

Fuse Box Cover Mercedes W177 W247 Engine Compartment Housing Holder A2475407600

Product currently unavailable

Part no. 4K0941828F

Audi A6 C8 Q5 Mk2 Battery Flat Fuses Fuse Box Panel 4K0941828F

Product currently unavailable

Part no. A2129009605

Fuse Box Mercedes W204 W212 Diesel Front Sam Control Module Unit A2129009605

Product currently unavailable

Part no. 6R0937548C-1

Skoda Fabia 5j Fuse Box Relay Carrier Holder Bracket Mount Tray 6R0915345E

Product currently unavailable

...

Showing 892-990 of 1254 products