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

€23.95

Part no. A2049060205-1

Mercedes C204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

€37.95

Part no. A2139068701

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

€23.95

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BMW 7 Series E65 E66 Fuse Board Power Distribution Box

€23.95

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BMW F10 F11 Power Distribution Fuse Box Front 9210861 61149210861

€23.95

Part no. A2229063202-1

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

€23.95

Part no. 9315151

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

€23.95

Part no. 4H0907348C

Audi A8 D4 4H Relay Fuse Bracket Holder Junction Box 4H0907348C

€37.95

Part no. A2035450803-1

Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803

€23.95

Part no. 3457416

Mini Cooper R58 Fuse Distribution Box Control Unit High PL3 SPEG H8 3457416

€165.95

Part no. BJ32-14F041-AG

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

€99.95

Part no. 9270356

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

€23.95

Part no. BK2T-14A075-AB

Ford Transit Custom Engine Bay Fuse Relay Box Cover Top Lid BK2T-14A075-AB

€28.95

Part no. A2049060205

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

€37.95

Part no. A1725400950

Mercedes SLK R172 Relay Fuse Box Control Unit A1725400950

€37.95

Part no. A0009822112

Energy Distributor Mercedes W205 W238 Power Control Unit Module A0009822112

€23.95

Part no. 5WA937615

Audi A3 S3 8Y Fuse Box Control Module Relay Box Electrical Unit 5WA937615

€23.95

Part no. 6906606

Mini Cooper One R50 R52 R53 Fuse Box Electrical Unit Cover Cap Black 6906606

€23.95

Part no. 5Q0937615C-2

Seat Leon Mk3 5F Fuse Relay Box Module Electrical Control Unit 5Q0937615C

€23.95

Part no. 1J0906381B

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

€23.95

Part no. 9264924

BMW F01 F02 F10 F11 F13 Power Distribution Fuse Box Rear 9264924

€23.95

Part no. A2469066600

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

€23.95

Part no. AE8T-14A003-AA

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

€23.95

Part no. FK72-5162-A

Land Rover Discovery L550 Cover Fuse Box Battery Trim Panel FK72-5162-A

€61.95

Part no. 8A0937530

Audi A6 C6 Fuse Relay Box Module Unit Holder Bracket 8A0937530

€32.95

Part no. 6906598

Mini Cooper One R50 R52 R53 JCW Fuse Relay Electrical Box Housing 6906598

€23.95

Part no. A2129001306

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129001306

€51.95

Part no. A2049006301-1

Mercedes W204 Rear SAM Module Fuse Box Control Unit A2049006301

€51.95

Part no. 9360501

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

€23.95

Part no. A1645400182

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

€23.95

Part no. A1645402372

Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372

€23.95

Part no. A2049009501

Fuse Box Mercedes W204 Rear SAM Relay Control Unit Module A2049009501

€284.95

Part no. 6957330

BMW E60 E61 E63 Power Distribution Electrical Fuse Box 6957330

€23.95

Part no. 8V51-14A075-AC

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

€23.95

Part no. A1665402450

Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450

€75.95

Part no. 9350313

BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313

€32.95

Part no. 9240945

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

€23.95

Part no. LT1T-15604-DCB

Ford Transit Connect Mk2 Body Control Fuse Box Module BCM LT1T-15604-DCB

€85.95

Part no. 4H0911075B

Audi A8L 4H Power Positive Distribution Junction Jumper Box Housing 4H0911075B

€23.95

Part no. A2465402150

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

€28.95

Part no. 7638477

Ignition Coil BMW E81 E87N LCI E90 E91 E92 F10 F11 Bosch 7638477

€23.95

Part no. 3449505

Mini Cooper One R55 R56 Fuse Distribution Box Cover Trim Cap 3449505

€23.95

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

€51.95

Part no. A2129006824

Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824

€89.95

Part no. 2755704-1

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

€23.95

Part no. 9316569

BMW X5 F15 Fuse Box Rear Relay Module Control Unit 9316569

€23.95

Part no. A6395400150

Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400150

€23.95

Part no. 6911922

BMW Z4 E85 E86 Interior Fuse Power Distribution Box 6911922 8384629

€23.95

Part no. AV6T-14A076-AB

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

€23.95

Part no. A0045450201

Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201

€23.95

Part no. A2465401850

Prefuse Box Mercedes W176 OM607 Fuse Relay Control Unit A2465401850

€23.95

Part no. A0009822723

Mercedes W205 Estate Fuse Relay Box Module Control A0009822723

€23.95

Part no. 6837092

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

€23.95

Part no. 6C0907361E

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

€75.95

Part no. H1BT-14D068-BG

Ford Fiesta Mk8 Fuse Relay Box Under Bonnet 1.0 1.5 Petrol H1BT-14D068-BG

€23.95

Part no. A1645400350-1

Mercedes ML W164 Fuse Prefuse Box Jump Start Terminal A1645400350

€23.95

Part no. DV6T-14A073-DG

Ford Focus Mk3 C-Max Mk2 BCM Body Control Module Fuse Box DV6T-14A073-DG

€37.95

Part no. A2125406250

Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250

€51.95

Part no. 6809051

BMW F20 LCI REM Rear Electronic Module Fuse Box Control 6809051

€32.95

Part no. A1669063801

Mercedes ML W166 Relay Box Engine Compartment Relay Module A1669063801

€42.95

Part no. A2115457001

Mercedes C219 Fuse Box Control Unit SAM Module A2115457001

€28.95

Part no. C1BT-14A005-BNE

Ford Fiesta Mk7 Fuse Box Control Module Unit C1BT-14A005-BNE

€51.95

Part no. A2129003922-1

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922

€23.95

Part no. AV6T-14K131-AC-1

Ford Focus Mk3 Fuse Relay Box Board Housing 6626RFAPF

€23.95

Part no. AB39-14A076-BF

Ford Ranger Mk6 Fuse Box Control Unit Housing Cover Trim Panel AB39-14A076-BF

€28.95

Part no. A1669061202

Mercedes W221 Fuse Box Control Unit Module Relay A1669061202

€32.95

Part no. M8A2-14A067-CA

Range Rover Velar L560 Fuse Box Cover Bracket Housing 6G9T-14A067-AB

€23.95

Part no. 6900583-1

BMW 7 Series E65 E66 Cable Wire Power Distribution Box 6900583

€23.95

Part no. 2Q0937615A

Volkswagen Polo Mk6 Fuse Relay Box Power Supply Unit 2Q0937615A

€28.95

Part no. 8734161

BMW G20 Power Distribution Rear Fuse Relay Box 330e B48X B48B20A 8734161

€32.95

Part no. BK2T-14B144-BA

Ford Transit Mk8 Battery Fuse Box Holder Housing 2.2 TDCi Diesel BK2T-14B144-BA

€23.95

Part no. 4H0941824

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

€23.95

Part no. A2115458601-2

Mercedes C219 Rear SAM Module Fuse Box Relay Control Unit A2115458601

€61.95

Part no. A2515400524

Mercedes W251 Fuse Relay Electrical Box Housing Cover A2515400524

€28.95

Part no. 9337881

BMW 1 3 4 F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear 9337881

€23.95

Part no. 2751445

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

€23.95

Part no. 4M0010006J

Audi Q7 4M Fuse Box Battery Terminal Cover Housing 4M0010006J

€23.95

Part no. 7C0937517AL

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

€132.95

Part no. 7N0937311

Volkswagen Passat B7 Sharan 7N Electrical Fuse Relay Box 7N0937311

€23.95

Part no. 8632554

Fuse Box Cover BMW X3 G01 X4 G02 Trim Panel Lid Housing Bracket 8632554

€23.95

Part no. CB250-FUSE

Honda CB250 CB 250RS Fuse Box Electrical Unit Cable Wiring

€23.95

Part no. 1J0941365B

Audi A3 8l TT TTS 8N Fusebox Fuse Relay Box Cover Lid Top End Cap 1J0941365B

€23.95

Part no. 9274023

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

€66.95

Part no. 99661011100

Porsche 911 986 996 Fuse Relay Box Mounting Block 9603 Petrol 99661011100

€42.95

Part no. N000000004325

Mercedes W169 W204 W211 C219 Replacement Fuse Kit Set N000000004325

€23.95

Part no. 9177784

BMW X5 E70 X6 E71 X6 E72 Map Fuse Box Grouping Diagram Card 9177784

€23.95

Part no. CPLA-14Q073-AA

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

€23.95

Part no. 9265835

Fuse Box Holder BMW X5 F15 X6 F16 Control Unit Module Bracket Carrier 9265835

€23.95

Part no. 1J0937550AB

Audi A3 8L VW Golf Mk4 Battery Fuse Box Terminal Cover Panel 1J0937550AB

€23.95

Part no. A2465400340-2

Mercedes W176 Fuse Relay Box Control Unit A2465400340 A2465400140

€28.95

Part no. 5Q0907361C-1

Seat Ibiza Mk4 Audi A3 8V TT FV Fuse Box Control Module Relay Box 5Q0907361C

€23.95

Part no. A2139068701-1

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068701

€32.95

Part no. 7L5907160

Porsche Cayenne 9PA Relay Module 6 Pin 462 7L5907160

€32.95

Part no. HPLA-14N030-AB

Land Rover Range Rover Mk4 L405 Rear Fuse Box Board 3.0 TDV6 HPLA-14N030-AB

€61.95

Part no. A2129060005

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

€23.95

Part no. 4E0971845

Audi A8 D3 Rear Fuse Relay Box Plate Mounting Right O/S 4E0971845

€23.95

Part no. CV44-S023B02-AAW

Ford Kuga C520 Fuse Box Cover Panel Lid Top Housing CV44-S023B02-AAW

€23.95

Part no. 6C1T-14A067-CB

Ford Transit Mk7 Fuse Box Relay Under Bonnet Control Module 6C1T-14A067-CB

€37.95

Part no. 1709792

Ford Fiesta Mk7 Interior Fuse Relay Box BCM Junction Box Unit 8V5T-14A005-KFF

€23.95

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