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 W204 Fuse Box Relay Module SAM Electrical Control Module A2045451669

£113.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8380407-1

BMW X5 E53 Power Distribution Fusebox Cover Fuse Box 8380407

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9267980

BMW F10 Fuse Location Diagram Map Fuse Grouping 9267980

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 3450247

BMW X3 E83 LCI Map Card Fuse Box Grouping Diagram 3450247

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8K0971845A

AUDI A5 8T 2.0 TDI CGLC Fuse Relay Box Power Distribution 8K0971845A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9315152

BMW X3 F25 Fuse Box Grouping Map Diagram Location 9315152

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6933410

BMW E85 Fuses Electrical Fuse Set 6933410

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 5Q0907361C

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

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129000004-2

SAM Module Mercedes W212 Fuse Box Relay Control Unit A2129000004

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8W0937124A

Audi A4 B9 A5 F5 Q5 FY Fuse Box Control Module Relay Box 8W0937124A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A4479060117

Mercedes Vito W447 Front Fuse Box Relay Control Unit Module A4479060117

£42.95

Free delivery: Aug 13

If paid before 14:00

Part no. MU5T-146599-AGC

Volkswagen Amarok NF Battery Relay Fuse Terminal Electrical Unit MU5T-146599-AGC

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2465400140

Mercedes-Benz A-Class W176 Equipment Electrical Cover Fuse Box A2465400140

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6924389

BMW Z4 Series E85 E86 Battery Positive Cable Fuse Box B Base 6924389

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2465402150

Mercedes-Benz A B Class W176 W246 Diesel Fuse Box Relay Unit A2465402150

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. rhd-A1725400182

Mercedes SLK R172 Fuse Relay Box Cover Cap Top Trim A1725400182

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6837092

BMW G30 G12 Fuse Relay Box Rear Trunk Power Distribution B + Box Basis 6837092

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129003922

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2049060305

SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305

£37.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1645400350-1

Mercedes ML W164 Fuse Prefuse Box Jump Start Terminal A1645400350

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. BK2T14A094AA

Ford Transit Mk8 Custom Fuse Pack BK2T14A094AA

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9316569

BMW X5 F15 Fuse Box Rear Relay Module Control Unit 9316569

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1645403572-1

Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572

£104.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9383681

Mini F55 Fuse Box Front Body Control Module ECU BCM Unit 13275881

£104.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. 5Q0937125A

Fuse Relay Box Volkswagen Audi Skoda Seat Engine Bay Supply Unit 5Q0937125A

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. rhd-A2135400124

Mercedes W213 Fuse Relay Electrical Box Housing Covering Panel A2135400124

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. AV6T14A067BC

Ford Transit Connect Mk2 II Fuse Box Battery Terminal Unit Module AV6T14A067BC

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8509910

BMW X3 F25 X4 F26 Engine Electronics Control Unit Box Cover Trim 8509910

£21.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6819652

Map Fuse Box BMW F15 F16 F85 F86 Grouping Diagram Card 6819652

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 5Q0907361G

Seat Leon Mk3 5F Fuse Box Control Unit Module Relay Box 5Q0907361G

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. 46858322

Peugeot Boxer II Citroen Relay III Fuse Box Control Unit Module 46858322

£237.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8X0915459

Audi A1 8X Positive Battery Overload Protection 8X0915459

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9312766

BMW F11 BCM Body Control Module Unit Electronic Junction Box ECU 9312766

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2049060405

Mercedes W204 Front Fuse Board Box Relay Unit Case A2049060405

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. rhd-A2055402250

Mercedes W205 Fuse Box Relay Control Module Battery Terminal A2055402250

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129005101

Fuse Box Mercedes W212 Rear SAM Relay Fuse Box Control Module A2129005101

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129060005

Fuse Box Mercedes W212 Rear Relay Control Unit Electric Module SAM A2129060005

£47.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8387551

BMW 3 Series E46 Battery Positive Cable Fuse Box Base B 8387551

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129060105

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129060105

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. A0005406050

Mercedes ML W164 W169 W205 W212 Fuse Box Relay Control Unit Module A0005406050

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9274023

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9274023

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9330542

BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2229063302

Fuse Box Mercedes W205 W222 Engine Compartment SAM Module Relay Unit A2229063302

£75.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1665400080

Fuse Box Cover Mercedes ML W166 C292 SAM Module Top Cap Panel Black A1665400080

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 7555188-1

BMW F01 F07 GT F10 F11 F12 F13 Control Unit Box Cover Cap 7555189

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2075402950

Mercedes W204 Power Distribiuton Battery Fuse Box Control Unit ECU A2075402950

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2135406200

Fuse Box Mercedes W213 S213 W238 Rear Electrical Control Unit Module A2135406200

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1645403572

Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572

£156.95

Free delivery: Aug 13

If paid before 14:00

Part no. 3455235

Mini Cooper R56 Fuse Box SPEG High DC/DC H4 3455235

£99.95

Free delivery: Aug 13

If paid before 14:00

Part no. 5A323C8

BMW F40 Fuse Relay Power Distribution Box Unit 5A323C8

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8380409

BMW X5 E53 Fuse Distribution Box Relay Board 6907395 8380409 6909721

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9315151

BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9315151

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. GJ32-14F041-AB

Range Rover Evoque L538 Fuse Box Control Unit Module GJ32-14F041-AB

£47.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9387228

Mini F56 Fuse Box Control Unit SAM Module Relay 9387228

£123.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2465401350

Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2465401350

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129005001

Relay Control Unit Mercedes W212 Rear SAM Electrical Fuse Module A2129060105

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. AV6T-14A076-AB

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

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9270356

Fuse Box BMW F40 Mini F55 F56 Power Distribution Junction Relay Unit 9270356

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A9065460643

Mercedes Sprinter W906 Fuse Box Relay Bracket Monunt Holder A9065460643

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 1308204070

Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 1308204070

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2215450801

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215450801

£189.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9809590

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

£208.95

Free delivery: Aug 13

If paid before 14:00

Part no. rhd-A2115400824

Fuse Box Housing Mercedes W211 CLS C219 Holder Mount Bracket A2115400824

£37.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2049060205-1

Mercedes C204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

£32.95

Free delivery: Aug 13

If paid before 14:00

Part no. BK2T14A175CA

Ford Transit Custom MK8 Fuse Relay Box Control Unit Module BK2T-14A175-CA

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. rhd-9136726-1

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

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 7H0907296

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

£32.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6842524

BMW G20 G21 G22 G28 G42 Battery Voltage Jump Start Terminal Unit 6842524

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-LR026120

Land Rover Evoque L538 Fuse Box Fusebox Fuse Panel Cover BJ32-14A076-BBW

£47.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1665400182-1

Mercedes C292 Fuse Box Cover Trim Panel Lid Black A1665400182

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8781423

BMW F30 Fuse Box Front Body Control Module ECU BCM Unit 8781423

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. AC1T9K499FNA

Ford Transit Mk7 Fuse Box Loom Wiring Harness Under Bonnet Unit AC1T-9K499-FNA

£113.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. A2129004901-1

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9270356-1

BMW F40 Mini F55 F56 Fuse Box Power Distribution Junction Relay Unit 9270356

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8509722-2

Control Unit Box BMW F20 F21 F22 F30 F31 Cover Panel Protection 8509722

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A6395480174

Mercedes-Benz Vito W639 Fuse Box Cooling Outlet Pipe Air Duct A6395480174

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A0009050338

Mercedes W212 Multi-Purpose Windscreen Camera Control Unit Module A0009050338

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6C0907361E

Fuse Box Audi A1 Seat Ibiza Control Module Relay Box 6C0907361E

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. 4H0941824

Audi A6 C8 Fuse Box Relay Plug Socket Fuse Unit Holder Bracket 4H0941824

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2465400950

Mercedes W176 W246 C117 Fuse Relay Box Unit Cables Wiring Loom A2465400950

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1640054799

Mercedes W164 Fuse Box Grouping Fuse Placement Map Card Diagram A1640054799

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2115452601

Mercedes ML W164 Prefuse Fuse Distribution Box Front A2115452601

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2469067100-2

Mercedes W176 W246 C117 Fuse Relay Box Unit A2469067100

£37.95

Free delivery: Aug 13

If paid before 14:00

Part no. 5J0937019

Seat Ibiza Mk4 6J Fuse Box On Board Supply Control Unit 5J0937615C

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1695454232

Mercedes-Benz A-Class W169 SAM Control Module Fuse Box Unit A1695454232

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. CPLA-14Q073-AA

Range Rover Discovery Sport L550 Fuse Box Control Module CPLA-14Q073-AA

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9362396

BMW F20 REM Rear Electronic Module Fuse Box Control Unit V3 9362396

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8K0937517B

Audi RS4 B8 Positive Battery Distribution Terminal Junction Relay Box 8K0937517B

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9177872

BMW 5 6 Series E61 E63 E64 LCI Map Card Fuse Box Grouping Diagram 9177872

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-8K2907613A

Audi S5 8T Fuse Box Lid Cover Box Trim 8K2907613A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9868384

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

£85.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9270355

Fuse Carrier BMW F40 Mini F55 F56 F57 F60 Distribution Box 9270355

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9270354

Mini F54 F55 F56 F57 F60 Rear Electric Power Distribution Fuse Box 9270354

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2115455232

Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115455232

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129060905

Mercedes A207 Rear SAM Module Fuse Box Relay Control Unit A2129060905

£42.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9387234

Mini F55 Fuse Box Front Body Control Module ECU BCM Unit 9387234

£118.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2055402350

Mercedes A205 W247 Battery Fuse Box Positive Distribution Terminal A2055402350

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2205400282

Mercedes CL S Class C215 W220 Fuse Box Unit Cover Front Left A2205400282

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 1J0906381B

Audi TT 8N Fuse Box Relay Control Unit Module 1J0906381B

£13.95

Free delivery: Aug 13

If paid before 14:00

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