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 Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400150

PLN 56.95

Delivery: Nov 10

If paid before 14:00

Part no. A2465400140

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

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A1665459340

Mercedes W166 C292 Fuse Box Relay Control Unit Module A1665459340

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2229063202-1

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

PLN 70.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2139068701-3

Mercedes C205 W213 Fuse Box Rear SAM Module Electrical Control Unit A2139068701

PLN 75.95

Free delivery: Nov 10

If paid before 14:00

Part no. A9065420044

Mercedes W906 Bracket Mount Fuse Distribution Box A9065420044

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A1645450201

Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201

PLN 56.95

Delivery: Nov 10

If paid before 14:00

Part no. A2115452601

Mercedes ML W164 Prefuse Fuse Distribution Box Front A2115452601

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2465400340-1

Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200

PLN 85.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1775404307-1

Fuse Box Mercedes C118 W177 Engine Compartment Relay Box Module A1775404307

PLN 474.95

Free delivery: Nov 10

If paid before 14:00

Part no. A9075407312

Mercedes W907 Battery Fuse Box Positive Distribution Terminal A2479061803

PLN 474.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2139068701-1

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068701

PLN 75.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1779061002

Fuse Box Mercedes W177 Power Distribution Junction Relay Unit A1779061002

PLN 104.95

Free delivery: Nov 10

If paid before 14:00

Part no. A4475450069-2

Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069

PLN 94.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129003702-1

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003702

PLN 99.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2038301613

Mercedes C CLK Class W203 C209 Engine Bay Fuse Box Right O/S Cover A2038301613

PLN 56.95

Delivery: Nov 10

If paid before 14:00

Part no. A0015456403

Mercedes Sprinter W906 Fuse Box Relay Cover Box Cap A0015456403

PLN 42.95

Delivery: Nov 10 – 12

If paid before 14:00

Part no. A1725400950

Mercedes SLK R172 Relay Fuse Box Control Unit A1725400950

PLN 175.95

Free delivery: Nov 10

If paid before 14:00

Part no. A0005406050

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

PLN 85.95

Free delivery: Nov 10

If paid before 14:00

Part no. A0535450226

Mercedes Sprinter W906 Fuse Box Connector Plug Socket A0535450226

PLN 61.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2059067200

Mercedes W205 S205 W213 Fuse Box Front Relay Control Unit Module A2059067200

PLN 66.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2475451101

Mercedes C118 W177 C247 Fuse Box Module Cover Cap Trim Housing M282 A2475451101

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129060605

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

PLN 284.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129004711

Mercedes W204 W212 Front Fuse Box Relay Control Unit SAM Module A2129004711

PLN 583.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2115458601-2

Mercedes C219 Rear SAM Module Fuse Box Relay Control Unit A2115458601

PLN 460.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2125400382

Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382

PLN 47.95

Delivery: Nov 10

If paid before 14:00

Part no. A0009827403

Mercedes W205 Energy Distributor Power Electrical Control Unit A0009827403

PLN 85.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129004611

Mercedes W204 Front SAM Unit Fuse Box Control Power Distribution A2129004611

PLN 422.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1775404107

Mercedes C118 W177 W247 Fuse Box Battery Relay Terminal A1775404107

PLN 303.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129005401

Mercedes W207 Fuse Junction Box Relay Control Unit Module SAM A2129005401

PLN 208.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129060017

Mercedes W212 Hybrid Engine Bay Fuse Relay Box Housing A2129060017

PLN 61.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2139068701-2

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

PLN 61.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2125400072

Mercedes W212 Fuse Box Housing Relay Unit Module A2125400072

PLN 127.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1669061202

Mercedes W221 Fuse Box Control Unit Module Relay A1669061202

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2059067200-1

Mercedes W205 S205 W213 Fuse Box Front Relay Control Unit Module A2059067200

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A1665402150

Mercedes W166 Seat Fuse Relay Junction Box Block A1665402150

PLN 427.95

Free delivery: Nov 10

If paid before 14:00

Part no. A4475401440

Mercedes Vito W447 Fuse Box Relay Control Unit Module A4475401440

PLN 70.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129060605-1

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

PLN 208.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2045403850

Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850

PLN 189.95

Free delivery: Nov 10

If paid before 14:00

Part no. A9075409482

Fuse Box Mercedes Sprinter W907 Prefuse Box Module Relay Holder A9075409482

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2035450803-1

Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803

PLN 93.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1636880035-1

Mercedes-Benz M-Class ML W163 1 Fuse Box Relay Lid Cover Trim A1636880035

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A0025450601

Mercedes W906 Fuse Relay Box Module Control Unit A0025450601

PLN 123.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2205401224

Mercedes CL S Class C215 W220 Fuse Box Unit Front Left ECU A2205401224

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2129000204

Mercedes W212 Fuse Box Control Unit SAM Module Relay A2129000204

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2055402750

Mercedes W205 C253 Hybrid Fuse Control Unit Module Distribution Box A2055402750

PLN 75.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2049060105

Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105

PLN 189.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2135403839

Mercedes W213 C238 Power Relay Fuse Box Unit Cover A2135403839

PLN 237.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1645400624

Mercedes W164 Fuse Box Relay Housing Cover A1645400624

PLN 75.95

Free delivery: Nov 10

If paid before 14:00

Part no. A4479009808

Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM 4479009808

PLN 664.95

Free delivery: Nov 10

If paid before 14:00

Part no. A9425426040

Mercedes Sprinter W906 Fuse Box Relay Carrier Holder Bracket A9425426040

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2049009501

Fuse Box Mercedes W204 Rear SAM Relay Control Unit Module A2049009501

PLN 949.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129060005-1

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

PLN 61.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2465402150

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

PLN 465.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2059068501-1

Fuse Box Mercedes W205 S205 W213 Fuse Box Front Relay Control Module A2059068501

PLN 94.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129006824

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

PLN 379.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2095451101

Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101

PLN 379.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2465401350-1

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

PLN 94.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2215401101

Mercedes W221 Fuse Box Control Unit SAM Module Relay Controller A2215401101

PLN 474.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2055400182

Mercedes W205 W213 C238 C253 Relay Fuse Box Top Cover Lid Cap A2055400182

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2059007539

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

PLN 51.95

Delivery: Nov 10

If paid before 14:00

Part no. A0045450201-1

Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201

PLN 56.95

Delivery: Nov 10

If paid before 14:00

Part no. A1695405545

*Mercedes-Benz A-Class W169 Body Control Unit Module SAM A1695405545

PLN 127.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129003922-1

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922

PLN 170.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2229063302

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

PLN 99.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1779061102

Fuse Box Mercedes W177 Relay Fuse Box COntrol Module Unit A1779061102

PLN 284.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2049060205-1

Mercedes C204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2045403750

Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2045403750

PLN 379.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129007024

Mercedes CLS C218 Front Fuse Relay Box On Board Supply A2129007024

PLN 322.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2135406200

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

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2055407311

Mercedes C205 C63 AMG Fuse Box Housing Cover A2055407311

PLN 560.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1779061302

Mercedes EQA H243 W247 Fuse Box Relay Control Unit Module A1779061302

PLN 284.95

Free delivery: Nov 10

If paid before 14:00

Part no. A6399000800-1

Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800

PLN 631.95

Free delivery: Nov 10

If paid before 14:00

Part no. A0009050038

Mercedes W212 Multi-Purpose Windscreen Camera Control Unit Module A0009050038

PLN 47.95

Delivery: Nov 10

If paid before 14:00

Part no. A1645400750

Mercedes ML W164 Battery Fuse Box Power Distribution A1645400750

PLN 61.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2465451500

Mercedes W176 Control Unit Bracket Holder Mount A2465451500

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2139068801-1

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801

PLN 61.95

Free delivery: Nov 10

If paid before 14:00

Part no. A0005456786

Mercedes W205 W213 Fuse Box Protective Bracket Cover A0005456786

PLN 42.95

Delivery: Nov 10 – 12

If paid before 14:00

Part no. A0035453501

Mercedes Vaneo W414 Sprinter W901 W902 W903 Fuse Box Battery A0035453501

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A1665460143

Mercedes ML W166 Fuse Box Electric Distribution Control Module A1665460143

PLN 70.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2049060305

SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305

PLN 80.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2049060105-2

Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2465451440

Mercedes W176 Fuse Relay Box Cover Cap Top Trim Lid A2465451440

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2465410905

Mercedes W176 W246 C117 X156 Battery Fuse Relay Box Top Cover Trim A2465410905

PLN 99.95

Free delivery: Nov 10

If paid before 14:00

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

-9%

Part no. A2129004901

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

Promo price

PLN 46.95

PLN 42.95

Delivery: Nov 10

If paid before 14:00

Part no. A2129009908

Mercedes SLK R172 Fuse Box Relay Control Unit SAM Module A2129009908

PLN 474.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2465401350

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

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A0025451201

Mercedes W169 W245 W906 Fuse Box Carrier A0025451201

PLN 94.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2469067100

Mercedes W176 W246 C117 Fuse Relay Box Control Unit Module A2469067100

PLN 151.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2515400524

Mercedes W251 Fuse Relay Electrical Box Housing Cover A2515400524

PLN 118.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129001306

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129001306

PLN 89.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1775405931

Mercedes W177 Engine Compartment Power Distribution Fuse Box Unit A1775405931

PLN 474.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129005101

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

PLN 113.95

Free delivery: Nov 10

If paid before 14:00

Part no. A0045468540

Mercedes W221 Distributor Box Block Control Unit Relay A0045468540

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2049060405

Mercedes W204 Front Fuse Board Box Relay Unit Case A2049060405

PLN 94.95

Free delivery: Nov 10

If paid before 14:00

Part no. A9076830400

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

PLN 61.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1779069601-1

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

PLN 522.95

Free delivery: Nov 10

If paid before 14:00

Part no. A0025451301

Mercedes W169 W245 W907 W910 Fuse Box Carrier A0025451301

PLN 56.95

Delivery: Nov 10

If paid before 14:00

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

PLN 104.95

Free delivery: Nov 10

If paid before 14:00

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