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

£18.95

Part no. A0045467540

Mercedes W204 W221 Distributor Box Block Control Unit Relay A0045467540

£13.95

Part no. A2469066600

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

£13.95

Part no. 9279822

BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 9279822

£13.95

Part no. 9136726

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

£13.95

Part no. A1695450540-1

Mercedes-Benz A-Class W169 Fuse Electrical Box Relay Control Unit A1695450540

£18.95

Part no. 3456911

Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3456911

£151.95

Part no. 9337879

BMW 1 3 4 Series F20 F21 F30 F31 F34 Power Distribution Fuse Box Front 9337879

£13.95

Part no. 1480790

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

£13.95

Part no. 9136725

BMW Mini Cooper One R55 R56 Multifuse B Battery Power Distributor 9136725

£13.95

Part no. 7521582

BMW E46 E83 E85 Engine Electronics Unit Box Cover Trim 7521582

£13.95

Part no. 9326204

BMW X3 F25 B+ Distribution Box Battery Power Front Control Unit Point 9227458

£13.95

Part no. 7560626

BMW X3 Z4 E83 LCI E85 E86 Power Distribution Module Fuse Box 7560626

£13.95

Part no. A2125400382

Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382

£13.95

Part no. 6932452

BMW 5 6 Series E60 E61 E63 E64 Power Distribution Electrical Fuse Box 6932452

£13.95

Part no. A4475400082

Mercedes Vito W447 Fuse Box Cover Trim Panel Lid Housing A4475400082

£37.95

Part no. RHD-7H2857151C

Volkswagen Transporter T5 Interior Fusebox Panel Cover 7H2857151C

£37.95

Part no. 9298959

BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V2 REM 9298959

£47.95

Part no. A2075400740

Fuse Box Mercedes W204 Battery Terminal Control Unit Module A2075400740

£28.95

Part no. 6907395

BMW X5 Series E53 Electrical Power Distribution Fuse Box 6907395

£13.95

Part no. A2469060093

Fuse Box Mercedes W176 OM607 Front Relay Control Unit Module A2469060093

£18.95

Part no. A2465403803

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

£18.95

Part no. 9374507

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

£18.95

Part no. 9360501

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

£13.95

Part no. 9210861

BMW F10 F11 Power Distribution Fuse Box Front 9210861 61149210861

£13.95

Part no. 6C1T14A067AB

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

£37.95

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

£47.95

Part no. A2229063202-1

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

£13.95

Part no. 3457577

Fuse Box MINI R61 Paceman PL3 SPEG H4 Distribution Control Unit 3457577

£94.95

Part no. 7533283

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

£13.95

Part no. 9257426

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

£13.95

Part no. 8380407

BMW X5 Series E53 Power Distribution Fusebox Cover Fuse Box 8380407

£13.95

Part no. 9177209-2

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

£13.95

Part no. 8C1T14A073BG

Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T14A073BG

£18.95

Part no. 6900583

BMW E65 E66 Power Distribution Box 6900583

£13.95

Part no. A9075407312

Mercedes W907 Battery Fuse Box Positive Distribution Terminal A2479061803

£47.95

Part no. A1695451940-1

Fuse Box Mercedes W169 W245 Electrical Relay Control Module Unit A1695451740

£37.95

Part no. A1635450016

Mercedes ML W163 Fuse Box SAM Control Unit Module A1635450016

£237.95

Part no. 9240945

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

£13.95

Part no. 6911922

BMW Z4 E85 E86 Interior Fuse Power Distribution Box 6911922 8384629

£13.95

Part no. A2479005708

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

£70.95

Part no. A2225403150

Fuse Box Mercedes W205 Front Passenger Side Footwell Fuse Box A2225403150

£13.95

Part no. 6802943

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

£66.95

Part no. 9383709

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

£118.95

Part no. 9213374

Mini R55 R56 R57 Cover Power Distribution Fuse Box 9213374

£13.95

Part no. 6951079

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

£13.95

Part no. 9252812

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

£23.95

Part no. rhd-8D2941824

Audi A6 C6 Fuse Box Control Module Relay Box 8D2941824

£13.95

Part no. 8509914

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

£13.95

Part no. 1693500

Ford Transit Mk7 Engine Compartment Fuse Box Lid Cover 6C1T-14A076-AA

£13.95

Part no. 8387546

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

£13.95

Part no. A2139065706-1

Fuse Box Mercedes W205 W213 Front Engine Compatment Relay Module A2139065706

£42.95

Part no. 6819334

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

£13.95

Part no. A2049000902-1

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

£28.95

Part no. 3C0937125A

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

£13.95

Part no. A2045458201

Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201

£94.95

Part no. 6957330

BMW E60 E61 E63 Power Distribution Electrical Fuse Box 6957330

£13.95

Part no. 6906607

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

£13.95

Part no. A2045457001

SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2045457001

£56.95

Part no. A6395450203

Mercedes-Benz Vito W639 Fuse Box Cover Cap Trim A6395450203

£13.95

Part no. A2129004901

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

£23.95

Part no. 7H0937617-1

Volkswagen Transporter T5 T30 Fuse And Relay Box 7H0937617

£28.95

Part no. A2115457701

Fuse Box Mercedes W211 CLS C219 Front SAM Control Unit Module A2115457701

£28.95

Part no. A1695454332-1

Mercedes W169 W245 SAM Control Module Fuse Box Unit A1695454332

£28.95

Part no. 4G0971845A

Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A

£13.95

Part no. 9259467

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

£37.95

Part no. 5Q0907361C

Audi A3 8V Fuse Box Control Module Relay Box 5Q0907361C

£13.95

Part no. A1645400182

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

£13.95

Part no. A2465410005

Mercedes W176 W246 Battery Cover Fuse Box Trim Panel Lid A2465410005

£13.95

Part no. rhd-A2135400750

Battery Terminal Mercedes W213 W238 Fuse Box Module A2135400750

£47.95

Part no. A2465400340

Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200

£13.95

Part no. A2129004811

Fuse Box Mercedes W204 W212 Front Relay Control Unit SAM Module A2129004811

£142.95

Part no. A2215400850

Mercedes W221 Fuse Box Relay Control Unit Module A2215400850

£28.95

Part no. A2049060105

Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105

£28.95

Part no. A1645402372

Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372

£18.95

Part no. A2049060305

SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305

£18.95

Part no. A1645403572-1

Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572

£104.95

Part no. A2465402050

Mercedes W176 Fuse Box Control Unit SAM Module Relay A2465402050

£23.95

Part no. A2465840971

Mercedes W176 Fuse Box Allocation Fuse Placement Map Card Diagram A2465840971

£13.95

Part no. A2215403050

Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050

£28.95

Part no. 9259466

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear

£13.95

Part no. A0005404750

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

£18.95

Part no. A1779061002-1

Mercedes W177 Fuse Box Power Distribution Junction Relay Unit A1779061002

£28.95

Part no. A6395400150

Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400150

£18.95

Part no. A2055400840

Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840

£23.95

Part no. 9315150

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

£13.95

Part no. A2429004101

Mercedes W204 W212 Telephone Control Unit Module ECU A2429004101

£13.95

Part no. 2755704

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

£13.95

Part no. rhd-A2138300300

Mercedes W213 Engine Bay Cover Water Drain Left N/S Trim Panel A2138300300

£18.95

Part no. 9261110

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

£13.95

Part no. 7E0907296C

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

£47.95

Part no. 8578818

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

£18.95

Part no. A2035450803-1

Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803

£13.95

Part no. A1645400350

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

£13.95

Part no. 7H0937617

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

£18.95

Part no. AV6T-14A076-AB

Ford Focus Mk3 Fuse Box Relay Cover Cap Flap AV6T-14A076-AB

£13.95

Part no. 9252816

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

£13.95

Part no. rhd-9136726-1

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

£13.95

Part no. 7H0907296

VW Volkswagen Transporter T5 Fuse Box Housing Lid Cover Trim Lower 7H0907296

£32.95

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