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.

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Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A4475400082

Mercedes Vito W447 Fuse Box Cover Trim Panel Lid Housing A4475400082

£37.95

Free delivery: Aug 07

If paid before 14:00

Part no. RHD-7H2857151C

Volkswagen Transporter T5 Interior Fusebox Panel Cover 7H2857151C

£37.95

Free delivery: Aug 07

If paid before 14:00

Part no. 3457415

Mini Cooper One R57 PL3 SPEG H4 Fuse Distribution Box 3457415

£94.95

Free delivery: Aug 07

If paid before 14:00

Part no. A0025450801

Fuse Holder Mercedes W169 W245 W906 Electrical Fuse Box Bracket A0025450801

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2075400740

Fuse Box Mercedes W204 Battery Terminal Control Unit Module A2075400740

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6907395

BMW X5 Series E53 Electrical Power Distribution Fuse Box 6907395

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A9075406960-1

Mercedes Sprinter W907 Fuse Box Prefuse Box Module F150/1 - MFB-1 A9075406960

£66.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2129003614

Fuse Box Mercedes W212 Rear Relay Control Unit Electric Module SAM A2129003614

£94.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2049006301

Mercedes W204 Rear SAM Module Fuse Box Control Unit A2049006301

£37.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2465403803

Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465403803

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9374507

BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9360501

Mini F54 F55 F56 F57 F60 Rear Electric Power Distribution Fuse Box 9360501

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9210861

BMW F10 F11 Power Distribution Fuse Box Front 9210861 61149210861

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2469066600

Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2469066600

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. 1480790

Fuse Relay Mini Cooper One R50 R53 Electrical Box Housing With Cover 148079

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 7H0907299

Volkswagen Transporter T5 Engine Bay Cover For Main Fuse Box 7H0907300

£51.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9257426

Fuse Box Grouping BMW F10 F11 Fuse Placement Map Card Diagram 9257426

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1645450201

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

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 8380407

BMW X5 Series E53 Power Distribution Fusebox Cover Fuse Box 8380407

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9177209-2

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

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6900583

BMW E65 E66 Power Distribution Box 6900583

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2469060093

Fuse Box Mercedes W176 OM607 Front Relay Control Unit Module A2469060093

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1695451940-1

Fuse Box Mercedes W169 W245 Electrical Relay Control Module Unit A1695451740

£37.95

Free delivery: Aug 07

If paid before 14:00

Part no. A9069006701-1

SAM Module Mercedes Sprinter W906 Fuse Box Relay Control Unit A9069006701

£66.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1635450016

Mercedes ML W163 Fuse Box SAM Control Unit Module A1635450016

£237.95

Free delivery: Aug 07

If paid before 14:00

Part no. A0009822112

Energy Distributor Mercedes W205 W238 Power Control Unit Module A0009822112

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9240945

Mini Cooper D R55 R56 R57 R60 LCI Electrical System Fuse Distribution Box

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6911922

BMW Z4 E85 E86 Interior Fuse Power Distribution Box 6911922 8384629

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9350313

BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2479005708

Mercedes W177 Fuse Box Front Central Body Control Module BCM Unit A2479005708

£70.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6802943

Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943

£66.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6C1T14A067AB

Ford Transit Mk7 Fuse Box Relay With Bracket Holder 6C1T14A067AB 6C1T14C445AB

£37.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

£47.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9809589

Mini R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809589

£123.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9213374

Mini R55 R56 R57 Cover Power Distribution Fuse Box 9213374

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6951079

BMW E60 525i 530i 545i Fuses Set Electrical Fuse 6951079 61146951079

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2229063202-1

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. rhd-8D2941824

Audi A6 C6 Fuse Box Control Module Relay Box 8D2941824

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. KK3T-15604-FAJ

Ford Transit Custom Mk8 BCM Body Control Module Fuse Box Unit KK3T-15604-FAJ

£104.95

Free delivery: Aug 07

If paid before 14:00

Part no. 8509914

BMW F20 F21 F22 F23 F30 F31 F32 F33 F34 F36 Cover Electronics Box 8509914

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2045455401

Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401

£332.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2129005912

Mercedes W204 Fuse Box Relay SAM Control Unit Module A2129005912

£75.95

Free delivery: Aug 07

If paid before 14:00

Part no. 8387546

BMW 3 Z4 Series E46 E85 E86 Battery Positive Cable Fuse Box B Base 8387546

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1715450201

Fuse Box Mercedes SLK R171 Roadster Fuse Relay Box Control Module A1715450201

£161.95

Free delivery: Aug 07

If paid before 14:00

Part no. 7533283

BMW X3 Z4 Series E83 LCI E85 E86 Cover Top Power Distribution Fuse Box 7533283

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2139065706-1

Fuse Box Mercedes W205 W213 Front Engine Compatment Relay Module A2139065706

£42.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2129004711

Fuse Box Mercedes W204 W212 Front Relay Control Unit SAM Module A2129004711

£132.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1715451701

Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451701

£237.95

Free delivery: Aug 07

If paid before 14:00

Part no. 3C0937125A

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

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2045458201

Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201

£94.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2045457001

SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2045457001

£75.95

Free delivery: Aug 07

If paid before 14:00

Part no. A6395450203

Mercedes-Benz Vito W639 Fuse Box Cover Cap Trim A6395450203

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2115455301

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

£32.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2129004901

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

£23.95

Free delivery: Aug 07

If paid before 14:00

Part no. 7H0937617-1

Volkswagen Transporter T5 T30 Fuse And Relay Box 7H0937617

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1775404107

Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107

£56.95

Free delivery: Aug 07

If paid before 14:00

Part no. A9075407312

Mercedes W907 Battery Fuse Box Positive Distribution Terminal A2479061803

£47.95

Free delivery: Aug 07

If paid before 14:00

Part no. 3451924

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

£37.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9259467

Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467

£37.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1645400182

Mercedes ML W164 GL X164 Fuse Box Cover Trim Panel Cap A1645400182

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2465400082

Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465400082

£23.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2465410005

Mercedes W176 W246 Battery Cover Fuse Box Trim Panel Lid A2465410005

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2049060105

Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1645402372

Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. KK3T-14A075-AB

Ford Transit Custom Fuse Box Cover Housing Lid Trim Cap Panel KK3T-14A075-AB

£32.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2465402050

Mercedes W176 Fuse Box Control Unit SAM Module Relay A2465402050

£23.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9383709

BMW X5 F15 X6 F16 M Sport Fuse Box Body Control Module BCM ECU Unit 9383709

£118.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2049000902

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

£47.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2115457001

Mercedes C219 Fuse Box Control Unit SAM Module A2115457001

£94.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2465840971

Mercedes W176 Fuse Box Allocation Fuse Placement Map Card Diagram A2465840971

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2129008825

Mercedes C204 Fuse Box Control Unit SAM Module Relay A2129008825

£66.95

Free delivery: Aug 07

If paid before 14:00

Part no. A0005404750

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

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. 1480793

BMW Mini Cooper One R50 R53 Fuse Box Cover Black 1480793 61131480793

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1779061002-1

Mercedes W177 Fuse Box Power Distribution Junction Relay Unit A1779061002

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. A6395400150

Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400150

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9252812

BMW F10 F11 F01 Fuse Box Power Distribution Junction Relay Rear 9252812

£23.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2055400840

Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840

£23.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9315150

BMW X3 F25 Front Distribution Box Fuse Box Power Control Unit 9315150

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2429004101

Mercedes W204 W212 Telephone Control Unit Module ECU A2429004101

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 2755704

Genuine BMW Mini Cooper One R55 R56 R57 R60 R61 Fuse Box Empty Housing 2755704

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9261110

BMW F20 F21 F30 F31 Fuse Box Power Distribution Control Unit Box Rear 9261110

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. 7E0907296C

VW Transporter T5 Fuse Box Cover Upper Engine Compartment 2.0 TDI 7E0907296C

£47.95

Free delivery: Aug 07

If paid before 14:00

Part no. 8578818

Fuse Box Cover BMW G30 G31 G11 G15 Holder Bracket Mount Housing Trim 8578818

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2035450803-1

Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A1645400350

Mercedes-Benz M-Class ML W164 Fuse Prefuse Box Jump Start Terminal A1645400350

£23.95

Free delivery: Aug 07

If paid before 14:00

Part no. 7H0937617

Volkswagen Transporter T5 T30 Fuse And Relay Box Wiring Cable 7H0937617

£18.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6819334

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 6819334

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9252816

BMW F01 F02 LCI F07 GT Power Distribution Electrical Fuse Box Front 9252816

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A4475401440

Mercedes Vito W447 Fuse Box Relay Control Unit Module A4475401440

£42.95

Free delivery: Aug 07

If paid before 14:00

Part no. 8384525

BMW X5 Series E53 Electrical Power Distribution Fuse Box 8384525 6920648

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2059007037

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Fuse Unit A2059007037

£56.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6957330

BMW E60 E61 E63 Power Distribution Electrical Fuse Box 6957330

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. A2049060205-5

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

£32.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6906607

Fuse Box BMW E87 E90 E91 E92 E93 Front Power Distribution Relay Box 6906607

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 9240508

Fuse Map BMW X5 X6 E70 E71 Assignment Grouping Card 9240508

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. 6809051

BMW F20 LCI REM Rear Electronic Module Fuse Box Control 6809051

£28.95

Free delivery: Aug 07

If paid before 14:00

Part no. 8387541

BMW X5 E39 E53 Fuse Box Housing 8 Fold Voltage Regulator Boot 8387541

£13.95

Free delivery: Aug 07

If paid before 14:00

Part no. rhd-8K2971845A

Audi A1 8X Fuse Box Relay Control Unit Module 8K2971845A

£13.95

Free delivery: Aug 07

If paid before 14:00

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