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

Make

Seat Ateca Audi Q3 Mk2 TT 8S Fuse Relay Box Engine Bay Supply Unit 5Q0937125G

Product currently unavailable

Part no. A2095451101

Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101

Product currently unavailable

Part no. A2049067702

Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702

Product currently unavailable

Part no. 3457168

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

Product currently unavailable

Part no. A2129001606

Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606

Product currently unavailable

Part no. A2215408745

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215408745

Product currently unavailable

Part no. A0025424019

Mercedes W906 W907 Cut Off Electric Relay Module Wiring Cable A0025424019

Product currently unavailable

Part no. GV6T14A073DF

Ford Transit Connect Mk2 II Fuse Box Body Control Module GV6T14A073DF

Product currently unavailable

Part no. 9663798380

Peugeot 207 Fuse Box BSI Control Unit Module 9663798380

Product currently unavailable

Part no. A2129003702

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003702

Product currently unavailable

Part no. A9065450401

Fuse Box Mercedes W906 Front Relay Control Unit Electric Module A9065450401

Product currently unavailable

Part no. A1405400282

Mercedes C140 Fuse Box Relay Cover Lid Control Unit Bracket Trim A1405400282

Product currently unavailable

Part no. A1645400272-1

Mercedes W164 W251 Fuse Box Control Unit Module Relay A1645400272

Product currently unavailable

Part no. 1735752

BMW E36 Electrical Fuse Relay Box Covering Panel Trim Socket Petrol 1735752

Product currently unavailable

Part no. 9317174

BMW F30 REM Rear Electronic Module Fuse Box Control Unit V2 9317174

Product currently unavailable

Part no. A4515401250

Smart 451 SAM BCM Fuse Box Relay Control Unit Module A4515401250

Product currently unavailable

Part no. A1699010100

Mercedes W169 W245 Sam Control Module Fuse Box Unit A1699010100

Product currently unavailable

Part no. A2129009705

Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705

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. 3453736

Mini Cooper R56 SPEG PL3 M2 SPEG Fuse Distribution Box 3453736

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. 6R0915345E

Seat Ibiza Fuse Box Relay Carrier Holder Bracket Mount Tray 6R0915345E

Product currently unavailable

Part no. 9293313

BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V5 REM 9293313

Product currently unavailable

Part no. A2049060205-3

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

Product currently unavailable

Part no. 9362397

BMW 1 Series F20 Rear Module Fuse Box Power Distribution Control 9362397

Product currently unavailable

Part no. 8N0937550D

Audi TT 8N 3.2 BHE Engine Bay Battery Fuse Box 8N0937550D

Product currently unavailable

Part no. A1699004800

Mercedes-Benz A B Class W169 W245 SAM Control Module Fuse Box A1699004800

Product currently unavailable

Part no. A1645402372

Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372

Product currently unavailable

Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129003314

-15%

Part no. A2129003314

Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129003314

Product currently unavailable

Part no. 6C0907361D

Audi A1 8X Fuse Box Control Module Relay Box 6C0907361D

Product currently unavailable

Part no. 1J0937617-1

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

Product currently unavailable

Part no. 9284420

Central Gateway Module BMW F10 F11 F12 ECU Control Unit Lear ZGW-02 High 9284420

Product currently unavailable

Part no. A1695456332

Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332

Product currently unavailable

Part no. 3456852

Fuse Box MINI R56 LCI Cooper One PL3 SPEG H5 Distribution Control Unit 3456852

Product currently unavailable

Part no. A2135403038

Fuse Box Mercedes W205 W213 C238 Relay Module Control Unit A2135403038

Product currently unavailable

Part no. A2129004830

Mercedes SLK R172 W212 Rear Fuse Box SAM Relay Control Unit Module A2129004830

Product currently unavailable

Part no. A2469068601-1

Mercedes W176 W246 Battery Junction Block Battery Plus Pole A2469068601

Product currently unavailable

Part no. 3455527

Mini Cooper One R56 High SPEG DC/DC Fuse Distribution Box 3455527

Product currently unavailable

Part no. 6C0941824D

Audi A1 S1 8X Fuse Relay Box Module Unit 6C0941824D

Product currently unavailable

Part no. 9251119

Distribution Box BMW F10 F11 Positive Battery Fuse Power Module B Rear 9251119

Product currently unavailable

Part no. A9065452101

Fuse Box Mercedes Sprinter W906 SAM Control Unit Module A9065452101

Product currently unavailable

Part no. A6395450301-3

Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301

Product currently unavailable

Part no. 3455238

Mini Clubman R55 Fuse Box Relay Unit Module Control Unit 3455238

Product currently unavailable

Part no. A1715450701

Mercedes SLK R171 Rear SAM Control Unit Module Relay Fuse Box A1715450701

Product currently unavailable

Part no. A2129060605-1

Mercedes W212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129060605

Product currently unavailable

Part no. 3455436

Mini Cooper One R55 R55N LCI High PL SPEG H4 Fuse Distribution Box 3455436

Product currently unavailable

Part no. A6395450601-1

Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450601

Product currently unavailable

Part no. 6907395

BMW X5 Series E53 Electrical Power Distribution Fuse Box 6907395

Product currently unavailable

Part no. A1715451701

Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451701

Product currently unavailable

Part no. 9809590-1

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

Product currently unavailable

Part no. A2129005622

Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129005622

Product currently unavailable

Part no. BK3T-14401-EWD

Ford Transit Mk8 Fuse Box Power Distribution Junction Relay BK3T-14401-EWD

Product currently unavailable

Part no. 3455534

BMW Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3455534

Product currently unavailable

Part no. 9636079380

Fuse Box Peugeot 207 308 Battery Terminal Control Unit Module 9636079380

Product currently unavailable

Part no. A2139062202

Mercedes W213 W222 Fuse Box Rear Electrical Fuse Unit Module A2139062202

Product currently unavailable

Part no. BG9T-14A073-YH

Ford Mondeo Mk4 Galaxy MK3 Body Control Module Fuse Box BCM BG9T-14A073-YH

Product currently unavailable

Part no. A2075401650

Mercedes W204 Fuse Prefuse Box Relay Electrical Control Unit A2075401650

Product currently unavailable

Part no. A2219006902

Mercedes Class W221 Rear Fuse Box Control Unit Module SAM A2219006902

Product currently unavailable

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

Product currently unavailable

Part no. 6920035

BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035

Product currently unavailable

Part no. A6395450601

Mercedes Vito W639 SAM Module Electric Control Unit A6395450601

Product currently unavailable

Mini Cooper R58 R59 Fuse Box Fusebox Relay Unit Module Control Unit 3456860

-40%

Part no. 3456860

Mini Cooper R58 R59 Fuse Box Fusebox Relay Unit Module Control Unit 3456860

Product currently unavailable

Part no. A0345459432

Mercedes CL C215 W220 Sam Control Module Fuse Box Unit A0345459432

Product currently unavailable

Part no. 3456913

Mini R58 Coupe Fuse Distribution Box Electrical Unit PL3 SPEG H8 DC/DC 3456913

Product currently unavailable

Part no. 9192124

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

Product currently unavailable

Part no. 6C1T14A076E

Ford Transit Fuse Relay Box Housing Covering Panel Cover Trim 6C1T14A076E

Product currently unavailable

Part no. 1K0937125D-1

Audi A3 8P Volkswagen Touran Mk1 Skoda Yeti Engine Fuse Box 2.0 TDI 1K0937125D

Product currently unavailable

Part no. A2049067702-1

Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702

Product currently unavailable

Part no. 8X0971845A

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

Product currently unavailable

Part no. A2315401050

Mercedes SL63 R231 Roadster Fuse Box Passenger Footwell Fuse Box A2315401050

Product currently unavailable

Part no. A1725401450

Mercedes SLK R172 Fuse Box Power Distribution Control Module Unit A1725401450

Product currently unavailable

Part no. A2049000902

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

Product currently unavailable

Part no. A2115456701

Mercedes C219 Fuse Box Rear Relay Control Unit Module A2115456701

Product currently unavailable

Part no. A1635450016

Mercedes ML W163 Fuse Box SAM Control Unit Module A1635450016

Product currently unavailable

Part no. A2479061803

Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803

Product currently unavailable

Part no. A9069004700-1

Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700

Product currently unavailable

Part no. A2125400450

Fuse Box Mercedes W212 Battery Terminal Control Unit Module A2125400450

Product currently unavailable

Part no. 5WA937548

Audi A3 8Y Skoda Octavia Mk4 VRS VW Golf Mk8 Battery End Fuse Box 5WA937548

Product currently unavailable

Part no. A1685453340

Mercedes-Benz A-Class W168 Fuse Box Unit Holder Bracket Frame A1685453340

Product currently unavailable

Part no. A2049009701

Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2049009701

Product currently unavailable

Part no. 1K0937124Q

Audi RS3 8P Engine Bay SAM Relay Fuse Box Module Control Unit ECU 1K0937124Q

Product currently unavailable

Part no. 243501820R

Vauxhall Vivaro B Renault Trafic 3 Fuse Box Battery Terminal Module 243501820R

Product currently unavailable

Part no. 8N0937550A

Audi TT 8N Battery Fuse Box Power Distribution 8N0937550A

Product currently unavailable

Part no. 8384527

BMW X5 Series E53 Electrical Power Distribution Fuse Box 8384527

Product currently unavailable

Part no. A2035454101

Mercedes W203 Front SAM Control Unit Module Fuse Box A2035454101

Product currently unavailable

Part no. A2215402250

Mercedes W221 SAM Relay Fuse Box Module Control Unit ECU A2215402250

Product currently unavailable

Part no. A1695454332-1

Mercedes W169 W245 SAM Control Module Fuse Box Unit A1695454332

Product currently unavailable

Part no. 9177784

BMW X5 E70 X6 E71 X6 E72 Map Fuse Box Grouping Diagram Card 9177784

Product currently unavailable

Part no. A1645400672

Mercedes ML W164 Fuse Box Relay Module Front Control Unit Module A1645400672

Product currently unavailable

Part no. A2035452901

Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901

Product currently unavailable

Part no. A1715451701-1

Fuse Box Mercedes SLK R171 Roadster SAM Relay Box Control Module A1715451701

Product currently unavailable

Part no. 4G0907613D

Audi A6 C7 A7 4G Fuse Box Modules Housing Cap Trim 4G0907613D

Product currently unavailable

Part no. 9499005

BMW F32 REM Module Body Control Module BCM Fuse Relay Unit V5 9499005

Product currently unavailable

Part no. 3457582

Mini R55 R56 LCI R57 LCI R61 Fuse Box Power Distribution Relay 61353457582

Product currently unavailable

Part no. A1695405645

Mercedes W169 SAM Control Module Fuse Box Unit A1695405645

Product currently unavailable

Part no. A2035453501

SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501

Product currently unavailable

Part no. A2129004025

Mercedes W212 Fuse Box Relay Control Unit Module SAM A2129004025

Product currently unavailable

Part no. A1645403472

Mercedes W164 Fuse Box Relay Module Unit A1645403472

Product currently unavailable

Part no. 9868384

Body Control BMW F22 F23 F30 F32 F33 F36 BCM Module Unit ECU 9868384

Product currently unavailable

...

Showing 991-1089 of 1135 products