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 W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8K0937501

Audi A4 B8 A5 8T A6 C7 Q5 8R Fuse Box Relay Module Connector Plug 8K0937501

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-A2115400382

Mercedes W211 C219 Front Fuse Box SAM Module Cap Cover Housing A2115400382

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-AV6T-14A142-AB

Ford C-Max Mk2 Fuse Relay Box Wiring Cable 1.6 TDCI AV6T-14A142-AB

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-3D2937495

Volkswagen Phaeton 3D Dashboard Fuse Box Module Box Housing 3D2937495

£37.95

Free delivery: Aug 13

If paid before 14:00

Part no. 3428544

BMW X3 E83 LCI Fuse Box Grouping Map Diagram Location 3428544

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 2S6T-14A076-BA

Ford B-Max Fiesta Mk6 Fuse Box Cover Housing Lid Trim Cap 2S6T-14A076-BA

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129005922

Mercedes W212 SLK R172 Fuse Box Relay Control Unit SAM Module A2129005922

£237.95

Free delivery: Aug 13

If paid before 14:00

Part no. rhd-A2125400340

Fuse Box Mercedes W212 Prefuse Box Module Relay Holder A2125400340

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2035450403

Mercedes-Benz C CLK Class W203 C209 Fuse Box Cover Engine A2035450403

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1665400180

Mercedes W166 Fuse Box Relay Cover Shield Cap Trim A1665400180

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-GK2V-14401-DB-1

Ford Transit Custom Battery Fuse Box Police Wire Harness Cable GK2V-14401-DB

£94.95

Free delivery: Aug 13

If paid before 14:00

Part no. 2Q0937615A

Volkswagen Polo Mk6 Fuse Relay Box Power Supply Unit 2Q0937615A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2135401115

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

£42.95

Free delivery: Aug 13

If paid before 14:00

Part no. 2S6T-14A073-AC

Ford Transit Connect Fuse Box Power Distribution Junction Relay 2S6T-14A073-AC

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2049005501

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049005501

£75.95

Free delivery: Aug 13

If paid before 14:00

Part no. 827410D010

Toyota Yaris Mk1 XP10 Under Bonnet Hood Relay Fuse Box Board 827410D010

£47.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8720724

BMW F70 U11 F74 Gran Coupé Power Distribution Fuse Relay Box Module 8720724

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-A2055407011-2

Mercedes W205 Front Relay Power Fuse Box Control Unit Module A2055407011

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. GK2T-14B144-GA

Ford Transit Custom Mk8 Fuse Loom Junction Box Housing Bracket GK2T-14B144-GA

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129060605

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

£70.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8367094

BMW E65 Fuse Box Relay Unit Control Module Connector Box 8367094

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2049060405-1

Mercedes W204 Front Fuse Relay Control Module Unit A2049060405

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1665459340

Mercedes W166 C292 Fuse Box Relay Control Unit Module A1665459340

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9339830

BMW X3 G01 G11 G12 G30 Fuse Box Battery Jump Start Terminal Pack 9339830

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2215406801

Mercedes CLS500 C219 Fuse Box Relay Box Control Module Unit A2215406801

£118.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8P0937548A

VW Volkswagen Passat B6 Fuse Box Control Unit Module 8P0937548A

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2215405550

Mercedes W221 Front Fuse Box Relay Control Unit Module A2215405550

£284.95

Free delivery: Aug 13

If paid before 14:00

Part no. KK3T-14D068-AD

Ford Transit Mk8 Fuse Box Power Distribution Relay KK3T-14D068-AD

£232.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. 2348429

Ford Mustang GT Mk6 Fuse Box Upper Cover Panel Trim 2348429 KU5T-14A003-MA

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A0045467840

Distributor Box Mercedes W169 W245 Connector Block Control Unit A0045467840

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 5Q0937132B

Skoda Superb Mk3 3V Fuse Box Lid Cover Trim Upper Panel 5Q0937132B

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 13277321-04

Vauxhall Insignia A Fuse Box Relay Control Unit Module 544949969

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. K8D2-14A067-CA

Land Rover Discovery Sport L550 Fuse Box Fusebox Bracket Mount K8D2-14A067-CA

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-JK2T-14401-FMC

Ford Transit Mk8 Fuse Relay Box Control Unit Module 2.0 Diesel JK2T-14401-FMC

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1705450301

Mercedes R170 Fuse Distribution Box Junction Fuse Relay A1705450301

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2139068701

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Fuse Unit A2139068701

£47.95

Free delivery: Aug 13

If paid before 14:00

Part no. BS7T-14K131-DA

Land Rover Discovery Sport L550 Evoque L538 Fuse Relay Box BS7T-14K131-DA

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. 5A4CFA9

BMW G20 LCI Fuse Box Control Module Unit 5A4CFA9

£142.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. 1T2959503B

Volkswagen Touran 1T Fuse Box Relay Control Unit Bracket Holder 1T2959503B

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-2682933-1

Ford Custom Fuse Box Empty Cover Housing KU5T-14A003-AB

£37.95

Free delivery: Aug 13

If paid before 14:00

Part no. 1K0937132F

Vw Golf 5 Audi A3 8P Seat Leon 1P1 Fuse Box Cover Trim Panel Housing 1K0937132F

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 1T1937503A

Volkswagen Touran 1T Fuse Box Relay Control Unit Bracket Module 1T1937503A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6955431

BMW Z4 E85 Map Fuse Box Grouping Diagram 6955431

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6G9T-14K131-BB

Land Rover Discovery Sport L550 Fuse Relay Box 6G9T-14K131-BB

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6937668

BMW X5 Series E53 Fuse Box Label Trim Cover Panel Sticker 6937668

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2219067100

Mercedes CL C216 W221 Rear Fuse Relay Box Control Unit A2219067100 A2219067000

£66.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2055463100

Retaining Plate Mercedes W205 Relay Fuse Box Holder Bracket A2055463100

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. AH42-14F041-AK

Range Rover L322 Body Control Module Fuse Relay Box AH42-14F041-AK

£142.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. A1775404307-1

Fuse Box Mercedes C118 W177 Engine Compartment Relay Box Module A1775404307

£94.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. A2129004201

Mercedes S212 Estate Fuse Box Rear SAM Module Relay Control Unit A2129004201

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9389070

BMW F20 F30 LCI REM Electric Power Distribution Fuse Box Control 9389070

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6G9T-14C507-AB

Ford Galaxy Mk2 Fuse Box Lid Cover Panel Housing 6G9T-14C507-AB

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 6G9T-14C507-BB

Ford Galaxy Mk2 Fuse Box Lid Cover Panel Housing 6G9T-14C507-BB

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. GK2T-14401-FMB

Ford Transit Custom Fuse Relay Box 2.0 Diesel GK2T-14401-FMB

£47.95

Free delivery: Aug 13

If paid before 14:00

Part no. 99161032100

Porsche 718 Boxster 982 Battery Fuse Box Control Unit Socket Plug 99161032100

£18.95

Part no. 4K0941823J

Audi A6 C8 Fuse Box Power Distribution Module 4K0941823J

£94.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8E0907500

Audi A4 S4 B6 Fuse Box Holder Support Mounting 8E0907500

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-A2515404433

Mercedes W251 Engine Fuse Box Control Module Unit A2515404433

£85.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8781450

Fem Module BMW 325i M Sport Fuse Box Control Module Unit 8781450

£94.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9360501-4

Distribution Fuse Box BMW F40 F48 Mini F56 Rear Electric Power Fuse Box 9360501

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. A9076830400

Mercedes W907 Fuse Box Relay Cover Lid Control Unit Bracket Trim A9076830400

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. FUSE-SET-200

Automotive Electrical Fuse Set 200 Pieces Plug In Blade

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. BK2T14401FLH

Ford Transit Custom 2.0 Ecoblue Diesel Fuse Box Power Distribution BK2T14401FLH

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. BK2T14B144AA-1

Ford Transit Custom Mk8 Fuse Relay Box Unit Module 2.2 TDCI BK2T-14B144-AA

£47.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1669001716-1

Mercedes W166 W292 Sam Control Module Fuse Box Unit A1669001716

£113.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-A1405400750

Mercedes C140 Fuse Box Relay Box Control Module Unit A1405400750

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. BJ32-14F041-AC

Land Rover Evoque L538 Junction Fuse Box Control Module BJ32-14F041-AC

£75.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1779061102

Fuse Box Mercedes W177 Relay Fuse Box COntrol Module Unit A1779061102

£56.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9316568

BMW X5 F15 X6 F16 Front Fuse Box Relay Module Control Unit 9316568

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A9075409482

Fuse Box Mercedes Sprinter W907 Prefuse Box Module Relay Holder A9075409482

£37.95

Free delivery: Aug 13

If paid before 14:00

Part no. A0035453501

Mercedes Vaneo W414 Sprinter W901 W902 W903 Fuse Box Battery A0035453501

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-GH22-14290-CDA

Land Rover Discovery 4 L319 Under Bonnet Fuse Box Realy Unit GH22-14290-CDA

£94.95

Free delivery: Aug 13

If paid before 14:00

Part no. LR092049

Land Rover Discovery Sport L550 Fuse Relay Box Upper Lid Cover HK72-14A076-BB

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. rhd-A6395450202

Mercedes Vito W639 Fuse Box Relay Carrier Holder Bracket Mount A6395450202

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 7C0937517AL

VW Crafter SY Fuse Box Distribution Relay Module Housing Bracket 7C0937517AL

£113.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. 4F1941824A

Audi A5 F5 Fuse Box Control Module Connector Plug Socket Wiring Loom 4F1941824A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1695453740

Mercedes-Benz A-Class W169 Fuse Box Unit Holder Bracket Frame A1695453740

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A0009050038

Mercedes W212 Multi-Purpose Windscreen Camera Control Unit Module A0009050038

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A1695456332-1

Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332

£32.95

Free delivery: Aug 13

If paid before 14:00

Part no. 9367814

BMW 2 X1 X2 F39 F45 F48 Map Card Fuse Box Grouping Diagram 9367814

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 7L0941824A

Volkswagen Touareg 7L Fuse Box Module Electrical Relay Control Unit 7L0941828A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8K0941824A

Audi A1 A4 A6 A7 A8 Fuse Box Connector Socket Module Unit 8K0941824A

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. 3414469

BMW X3 E83 Fuse Grouping Front Stick-on Label Diagram 9267980

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. BK3T-9K499-BBD

Ford Transit Mk8 Fuse Box Power Distribution Junction Relay Unit BK3T-9K499-BBD

£142.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2129000204

Mercedes W212 Fuse Box Control Unit SAM Module Relay A2129000204

£18.95

Free delivery: Aug 13

If paid before 14:00

Part no. 8387135

BMW 5 7 Series E60 E61 E65 Fuse Box Power Distributor Cap Trim Cover 8387135

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A0045450201

Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2059007539

Fuse Box Mercedes S205 Interior Front Relay Fuse Box Sam Module A2059007539

£94.95

Free delivery: Aug 13

If paid before 14:00

Part no. 52236707

Vauxhall Movano C Fuse Box Module Unit 2.2 Diesel B22LUE 52236707

£180.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. 9259581

BMW X3 F25 Map Card Fuse Box Grouping Diagram 9259581

£13.95

Free delivery: Aug 13

If paid before 14:00

Part no. RHD-YPW500050

Land Rover Discovery 3 L319 Fuse Box Relay Control Module YPP500080

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. 3453294

Mini Cooper One R56 High PL3 SPEG DC/DC M3 Fuse Distribution Box 3453294

£85.95

Free delivery: Aug 13

If paid before 14:00

Part no. 46867943

Vauxhall Movano C Additional Fuse Box Module Unit 2.2 Diesel B22LUE 46867943

£47.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. GK3T-9K499-FBC

Ford Transit Mk8 Engine Bay Fuse Box Wiring Loom Harness 2.0 GK3T-9K499-FBC

£104.95

Free delivery: Aug 14 – 21

If paid before 14:00

Part no. A2125400072

Mercedes W212 Fuse Box Housing Relay Unit Module A2125400072

£32.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2119820302

Mercedes W211 C219 Prefuse Fuse Distribution Box Electric Unit Front A2119820302

£28.95

Free delivery: Aug 13

If paid before 14:00

Part no. A2465400340-2

Mercedes W176 Fuse Relay Box Control Unit A2465400340 A2465400140

£23.95

Free delivery: Aug 13

If paid before 14:00

Part no. 7L0941824B

Volkswagen Touareg 7L Fuse Box Module Electrical Relay Control Unit 7L0941824B

£18.95

Free delivery: Aug 13

If paid before 14:00

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