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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Audi A6 C6 Fuse Relay Box Electrical Module 4F2971845A

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. 9259468

BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9259468

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. 4F0971845A-2

Audi A6 C6 Comfort Body Module Fuse Relay Box Control Unit 4F0971845A

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. RHD-4G2937503A

Audi RS4 B8 Fuse Box Relay Carrier Holder Bracket Mount 4G2937503A

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. RHD-4H2971845

Audi R4 B8 Fuse Box Relay Carrier Holder Bracket Mount Right O/S 4H2971845

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. 386MMKP

Vishay 386MMKP Double Metallized Film Capacitor Snubber Electrical Control Unit

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. R8D2-14N030-AB

Range Rover Evoque L551 Fusebox Fuse Relay Box Unit R8D2-14N030-AB

£28.95

Free delivery: Oct 07

If paid before 14:00

Part no. A1669063901

Mercedes ML W166 Relay Module Box Under Rear Right Seat F4 A1669063901

£37.95

Free delivery: Oct 07

If paid before 14:00

Part no. A1645400750

Mercedes ML W164 Battery Fuse Box Power Distribution A1645400750

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. 4M0010006B

Audi Q7 4M Fuse Box Battery Terminal Cover Housing 4M0010006B

£37.95

Free delivery: Oct 07

If paid before 14:00

Part no. A1779061002

Fuse Box Mercedes W177 Power Distribution Junction Relay Unit A1779061002

£18.95

Free delivery: Oct 07

If paid before 14:00

Part no. A2055402850

C205 Fuse Box Mercedes C205 Electrical Interior Relay Fuse Socket Control A2055402850

£23.95

Free delivery: Oct 07

If paid before 14:00

Part no. 4F0915519-1

Audi TT TTS 8J Battery Overload Protection Control Unit 4F0915519

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. A9065460643-1

Mercedes Sprinter W906 Fuse Box Relay Bracket Monunt Holder A9065460643

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. A2045400150

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

£23.95

Free delivery: Oct 07

If paid before 14:00

Part no. RHD-8K2971845B

Audi A4 B8 S5 8T Fuse Box Control Module Relay Box 8K2971845B

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. 9151320

BMW F01 F02 F07 Front Fuse Relay Box Power Distribution 9151320

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. 8J0937503

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

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. RHD-7E2919317

Volkswagen Transporter T6 Relay Plate Fuse Box Mounting Retainer 7E2919317

£42.95

Free delivery: Oct 07

If paid before 14:00

Part no. A2535450140

Mercedes X253 Keyless Go Module Unit Bracket Mount Holder Support A2535450140

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. 8V0937548

Audi A3 S3 RS3 8V Bettery Terminal Fuse Box Unit 8V0937548

£18.95

Free delivery: Oct 07

If paid before 14:00

Part no. A2475452301

Mercedes C118 W177 W247 Engine Compartment Fuse Box Bracket M260 A2475452301

£28.95

Free delivery: Oct 07

If paid before 14:00

Part no. 518171004

DAF 85CF Fuse Box Module Electrical Relay Control Unit 518171004

£28.95

Free delivery: Oct 07

If paid before 14:00

Part no. A1779069601-1

Fuse Box Mercedes W177 W247 Front Relay Engine Control Unit Module A1779069601

£104.95

Free delivery: Oct 07

If paid before 14:00

Part no. 8V51-14A075-CA

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

£13.95

Free delivery: Oct 07

If paid before 14:00

Part no. RHD-1850829

Ford Focus Mk3 Fuse Relay Box Control Unit Module EM5T-14K733-CAB

£42.95

Free delivery: Oct 07

If paid before 14:00

Part no. RHD-LR016057

Range Rover Sport L320 Engine Fuse Box Electrical Unit AH32-14290-AWB

£56.95

Free delivery: Oct 07

If paid before 14:00

Part no. 9119444

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

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BMW E87 E90 E91 E92 E93 Power Distribution Fuse Box Front 6906621

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Mini Cooper One R56 High SPEG Fuse Distribution Box H1 3450824

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BMW E81 E87 E90 E91 Power Distribution Fuse Box Front 9119445

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Mini R56 High SPEG M3 Fuse Distribution Box Electrical Control Unit 3453737

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BMW X5 Series E70 Power Distribution Fuse Box Front 9145115 6931690

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BMW F10 F20 F30 Integrated Relay Power Supply Module Distribution Box 7633242

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Mini Cooper Countryman R60 Fuse Distribution Box Module 9812535

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Mini Cooper R56 Electrical System Fuse Distribution Box 6906548

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BMW E87 E90 E91 Power Distribution Fuse Box Front 6906613

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Mini Cooper One R56 High SPEG DC/DC M3 Fuse Distribution Box 3451925

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Fuse Box Mercedes W204 S204 Front Relay SAM Control Unit Module A2075402750

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Mini Cooper One R56 High SPEG H1 Fuse Distribution Box 3450435

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Audi A3 8P Engine Bay Fuse Box 1K0937125D

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Fuse Box Mercedes W169 W245 Electrical Relay Control Unit A1695450540

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BMW E87 E90 E91 E92 Front Power Distribution Fuse Box 6906622

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Mini Cooper R56 LCI High SPEG PL3 H4 Fuse Distribution Box 3455439

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BMW Mini Cooper One R50 R52 R53 1 Power Distribution Fuse Box Front 6906604

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Mercedes Sprinter W906 SAM Module Fuse Box Relay Control Unit A9069006701

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Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701

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Mini R56 High SPEG DC/DC Fuse Distribution Box H3 3453739

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BMW X5 E53 E60 E65 Integrated Relay Power Supply Module 7510638

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BMW E87 E90 E91 E92 E93 Fuse Box Power Distribution Front 6906621

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Fuse Box Mercedes W204 Battery Terminal Control Unit Module A2075400740

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MINI Countryman R60 Control Unit Fuse Distribution Box SPEG High 9811672

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Mini R50 R53 Fuse Relay Electrical Box Housing With Cover 1480790

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Part no. 8364542

BMW E46 X3 E83 Power Distribution Fusebox Cover Fuse Box 8364542

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Part no. 6906558

Relay Box BMW E60 E61 E63 E64 Rear Power Distribution Fuse 6906558

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Part no. 9178962

BMW X5 X6 E70 E71 Power Distribution Fuse Box Battery 9178959

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Part no. rhd-A2035400250

Mercedes-Benz C CLK Class W203 C209 Fuse Distribution Dashboard A2035400250

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Part no. 9809381

Mini Cooper R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809381

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Part no. A9066880008

Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008

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Part no. 9813622

Mini Cooper Countryman R60 Fuse Distribution Box SPEG High 9813622

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Part no. 9252813

BMW 5 7 Series F01 F02 F10 F11 Power Distribution Fuse Box Rear 9252813

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Part no. 3455527

Mini Cooper One R56 High SPEG DC/DC Fuse Distribution Box 3455527

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Part no. A1699010100

Mercedes W169 W245 Sam Control Module Fuse Box Unit A1699010100

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BMW Z4 E89 Power Distribution Box Control Unit Module With Fuse 9192124

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Part no. 9213372

Mini Cooper One R55 R56 R58 Electrical System Fuse Distribution Box 9213372

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BMW F20 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9329702

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Part no. A1695405645-1

Mercedes W169 SAM Module Control Fuse Box Unit A1695405645

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Part no. A2045403850

Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850

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Part no. A9075450100

Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100

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Mercedes W169 W245 Fuse Box Module Unit A1695451940

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Mercedes-Benz C CLC Class CL203 S203 W203 Fuse Box Module SAM Unit A2035454701

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Mercedes-Benz A B Class W169 W245 Sam Control Module Fuse Box Unit A1695454332

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Fuse Box Mercedes W212 Front Relay Control Unit Electric Module SAM A2129000006

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Mercedes W906 W907 Cut Off Electric Relay Module A0025424019

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BMW X5 E70 Power Distribution Fuse Box Front Control Unit Module 6976384

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Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050

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Part no. 3451927

Mini Cooper One R56 High SPEG DC/DC H3 Fuse Distribution Box 3451927

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Part no. A2229063202

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

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Mercedes W906 Fuse Box SAM Relay Control Unit Module A9065453001

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Mercedes Vito Viano W639 Fuse Box Cover Trim Panel Lid Housing A6395450403

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Mercedes W212 Fuse Box Relay Rear SAM Control Unit Module A2129009622

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

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Part no. A2129005712

Mercedes W204 Front Fuse Box Relay Module Sam Control A2129005712

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Part no. 3455236

Mini Cooper One R56 High SPEG DC/DC Fuse Distribution Box H5 3455236

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Audi A3 8P Volkswagen Touran Mk1 Skoda Yeti Engine Fuse Box 2.0 TDI 1K0937125D

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Mercedes W169 W245 W906 Fuse Holder Electrical Fuse Box Bracket A0025450901

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Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

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BMW E60 E61 E63 E64 Rear Power Distribution Fuse Relay Box 6956505

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Part no. 9813233

Mini Cooper Countryman R60 Fuse Distribution Box SPEG High 9813233

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Part no. A9065454301

Mercedes Sprinter W906 Fuse Box Relay Control Unit Module A9065454301

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Part no. A2129008007

Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129008007

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Part no. 6971370

BMW 1 3 X1 Series E81 E82 E84 E87 E90 E91 E92 Power Distribution Box 6971370

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Mercedes C CLK Class W203 C209 Sam Control Module Fuse Box Rear A2035453401

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Part no. A2035400050

Fuse Box Mercedes SLK R171 W203 W209 Front Relay Control Unit A2035400050

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Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823

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Battery Junction Block Mercedes W176 W246 Battery Plus Pole Terminal A2469068601

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Part no. 9298958

Rear Electronic Module BMW F20 REM Fuse Box Control Unit V1 9298958

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