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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Jaguar XF X250 Fuse Relay Box Holder Bracket Mount Support 8X2T-14A067-FA

PLN 56.95

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BMW F01 F02 F03 F04 ECU Bracket Engine Module Box Housing Holder Mount 7555166

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Toyota Aygo B1 Fuse Box Unit Module Tray Holder Housing Panel Cover N101624V

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

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Range Rover Evoque L538 Engine Bay Fuse Box EJ32-14290-CGC LR046377

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Volkswagen Transporter T5 Caravelle Fuse Box Battery Terminal TDI 7H6970187

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

PLN 237.95

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Range Rover Velar L560 Rear Boot Trunk Fuse Box Relay Module JX63-14N030-AB

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Range Rover L322 Fuse Box Cover Lid Panel YQS500170

PLN 94.95

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Mercedes W177 Fuse Box Relay Cover Lid Control Unit Bracket Trim A2475407800

PLN 170.95

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Audi A7 4G Power Distribution Box Control Unit 4G0937517B

PLN 42.95

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Jaguar XK8 X100 Fuse Box Engine Bay Fusebox 4.2 Petrol AJ8FT LJG-2822-AC

PLN 237.95

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Audi TT 8N VW VW Golf Mk4 Fuse Box Relay Central Control Unit Module 8L0941822

PLN 46.95

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Volkswagen VW Passat B6 Fuse Box Relay Electrical Module Unit 3C0937125

PLN 46.95

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

PLN 66.95

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Ford Transit Mk7 Fuse Box Relay Housing Electrical Unit 2.2 TDCi 6C1T-14A067-AB

PLN 113.95

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Mercedes SLK R172 Rear Fuse Box SAM Relay Control Unit Module A1729060105

PLN 332.95

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Ford Fiesta Mk7 Positive Battery Terminal Fuse Box Cover Lid 8V51-14A075-AC

PLN 94.95

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Fiat Panda Mk2 Fuse Box Relay Cover Lid Cap Housing Under Bonnet 51794731

PLN 75.95

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Mercedes-Benz C E Class W204 W207 Fuse Distribution Box Interior A2045400150

PLN 56.95

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

PLN 51.95

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Ford Fiesta Mk7 Engine Fuse Box Control Unit Module E1BT-14K012-PDB

PLN 142.95

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

PLN 46.95

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Range Rover Velar L560 Fuse Box Unit Upper Cover Cap Trim M8A2-14A076-AA

PLN 94.95

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SAM Module Mercedes W212 Fuse Box Relay Control Unit A2129000004

PLN 61.95

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Ford Transit Mk8 Battery Fuse Box BK2T14A094BA

PLN 189.95

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Mercedes W207 Fuse Junction Box Relay Control Unit Module SAM A2129005401

PLN 208.95

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BMW X3 F25 Fuse Box Grouping Map Diagram Location 9315152

PLN 42.95

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Ford Galaxy Mk2 Fuse Box Relay Fusebox Control Unit Module 6G9T-14K131-CB

PLN 142.95

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Land Rover Discovery 4 L319 Junction Fuse Box 3.0 Diesel GH22-14F041-AA

PLN 379.95

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Mercedes C219 Rear SAM Module Fuse Box Relay Control Unit A2115458601

PLN 460.95

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Fuse Box Mercedes W176 OM607 Front Relay Control Unit Module A2469060093

PLN 94.95

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

PLN 94.95

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Jaguar XK8 X100 Fuse Box Control Unit Module Passenger Side N/S LJG2800BA

PLN 66.95

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Mercedes W169 W245 W907 W910 Fuse Box Carrier A0025451301

PLN 56.95

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Jaguar XF X250 Relay Fuse Box FX23-14A005-CP

PLN 237.95

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Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450

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Ford Transit Mk7 Fuse Box Relay Housing Cover 2.2 TDCi 6C1T-14A067-AB

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Volkswagen Trasnporter T5 Main Fuse Socket Engine Bay Panel Module 7H0937550A

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Citroën C4 Grand Picasso Fuse Box Cover Housing Bracket Holder 9658447380

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Fuse Box Mercedes W177 Relay Fuse Box COntrol Module Unit A1779061102

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Volkswagen Touareg 7L Fuse Box Relay Control Unit Module 7L0937503A

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Honda CB250 CB 250RS Fuse Box Electrical Unit Cable Wiring

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Mercedes C CLC Class CL203 W203 Rear SAM Unit Fuse Box Trim Cover A2036901430

PLN 46.95

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Ford Transit Custom MK8 2.2 TDCI Fuse Relay Box Unit Module BK2T14B144BA

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BMW Z4 E85 Fuse Box Modue Unit Bracket Mount Holder Retainer Support 6957913

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Mercedes ML W164 Battery Fuse Box Power Distribution A1645400750

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Audi A8L 4H Fuse Relay Battery Junction Box Housing 4H0937517

PLN 118.95

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Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400150

PLN 56.95

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Audi TTS 8J Fuse Relay Box Bracket Mount Frame 8J0937503

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Ford Fiesta Mk7 Heater Resistor Blower Fan Motor Unit Module VPCE2H-18B647-AA

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Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

-9%

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Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

Promo price

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Land Rover Range Rover L322 Rear Fuse Relay Box AH42-14N030-AE

PLN 189.95

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Porsche Cayenne 955 9PA Audi Q7 4L VW Touareg 7L Fuse Box Relay Module 7L0937559

PLN 94.95

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Toyota Avensis T270 Fusebox Fuse Relay Box 1.8 Petrol 2ZRFAE 8273005150B

PLN 46.95

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Mercedes ML W166 Fuse Box Electric Distribution Control Module A1665460143

PLN 70.95

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PLN 66.95

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Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200

PLN 61.95

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Ford Fiesta Mk7 Fuse Box Cover Housing Lid Trim Cap Panel AE8T-14A003-AA

PLN 89.95

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Range Rover Sport L494 Exhaust Heat Shield 3.0 Diesel K6D3-9A462-BB

PLN 137.95

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Audi A3 8V Gateway Control Module Unit ECU 5Q0907530P

PLN 47.95

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Mini Cooper One R56 R55 R57 R58 LCi Retaining plate fuse box SPEG 2751445

PLN 51.95

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Ford Focus Mk2 Under Hood Bonnet Fuse Box Cover Lid Trim Panel 3M5T-14A076-AC

PLN 51.95

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PLN 66.95

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PLN 46.95

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Land Rover Discovery 3 L319 Engine Compartment Fuse Panel Cover Lid YQH500130

PLN 94.95

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PLN 51.95

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PLN 94.95

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PLN 113.95

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PLN 80.95

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PLN 422.95

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PLN 65.95

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PLN 322.95

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PLN 70.95

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PLN 85.95

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PLN 46.95

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PLN 61.95

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PLN 61.95

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PLN 46.95

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Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

PLN 46.95

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PLN 474.95

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Ford Transit Connect Fuse Relay Box Panel Cover Trim Mount JT76-14K012C-NES

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Mini R55 R56 Fuse Box Electrical System Distribution Box 3449504

PLN 51.95

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Land Rover Discovery Sport L550 Fuse Box Trim Cover BJ32-06040-A

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BMW E81 E82 X1 E84 E87 E90 E91 E92 Power Distribution Box Fuse Box 6942912

Product currently unavailable

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BMW E81 E87 LCI E90 E91 E92 Front Fuse Box Power Distribution 9119444

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Battery Distribution Box BMW F01 F02 F10 F11 Power B+ Rear 9240490

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