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.

More information

Find it faster

Match to your vehicle

Make

Mercedes W169 W245 W907 W910 Fuse Box Carrier A0025451301

PLN 56.95

Delivery: Nov 10

If paid before 14:00

Part no. A2469005312

Mercedes X117 X156 W246 Relay Control Unit Module A2469005312

PLN 46.95

Delivery: Nov 10

If paid before 14:00

Part no. A2135406100

Fuse Box Mercedes W205 Interior Equipment Fuse Box Control Module A2135406100

PLN 47.95

Delivery: Nov 10

If paid before 14:00

Part no. A2475457300

Mercedes W177 Fuse Box Relay Cover Lid Control Unit Bracket Trim A2475457300

PLN 66.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2469060093

Fuse Box Mercedes W176 OM607 Front Relay Control Unit Module A2469060093

PLN 94.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1665402450-1

Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A6395480174

Mercedes-Benz Vito W639 Fuse Box Cooling Outlet Pipe Air Duct A6395480174

PLN 75.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1695453740

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

PLN 47.95

Delivery: Nov 10

If paid before 14:00

Part no. A2075402950

Mercedes W204 Power Distribiuton Battery Fuse Box Control Unit ECU A2075402950

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2049060205

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

PLN 142.95

Free delivery: Nov 10

If paid before 14:00

Part no. A0045450201

Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201

PLN 94.95

Free delivery: Nov 10

If paid before 14:00

Part no. A1669001814

Mercedes W166 SAM Body Control Unit Module Fuse Box A1669001814

PLN 199.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2129009522

Mercedes W212 Fuse Box Relay Rear SAM Control Unit Module A2129009522

PLN 99.95

Free delivery: Nov 10

If paid before 14:00

Mercedes W447 Fuse Relay Box Module Control Unit A4479060400

-1%

Part no. A4479060400

Mercedes W447 Fuse Relay Box Module Control Unit A4479060400

Promo price

PLN 263.95

PLN 261.95

Free delivery: Nov 10

If paid before 14:00

Part no. A2465402050

Mercedes W176 Fuse Box Control Unit SAM Module Relay A2465402050

PLN 184.95

Free delivery: Nov 10

If paid before 14:00

Part no. A9075450100

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

Product currently unavailable

Part no. A0035421819

Mercedes C205 Fuse Box Relay Control Unit Module A0035421819

Product currently unavailable

Part no. A6395450301

Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301

Product currently unavailable

Part no. A9066880008

Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008

Product currently unavailable

Part no. A6395450003

Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003

Product currently unavailable

Part no. A1715451301

Mercedes R171 Fuse Box Control Unit SAM Module Relay A1715451301

Product currently unavailable

Part no. A9065450003-1

Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003

Product currently unavailable

Part no. A2075401850

Fuse Box Mercedes W204 Battery Terminal Control Unit Module A2075401850

Product currently unavailable

Part no. A2035400050

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

Product currently unavailable

Part no. A1649005001

Mercedes ML W164 Sam Control Module Fuse Box Unit A1649005001

Product currently unavailable

Part no. A4475450069

Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069

Product currently unavailable

Part no. A2045455401

Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401

Product currently unavailable

Part no. A2045453901

Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901

Product currently unavailable

Part no. A1669067701

Mercedes ML W166 GLE C292 Relay Current Power Limiter Fuse Box A1669067701

Product currently unavailable

Part no. A2129008007

Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129008007

Product currently unavailable

Part no. A0025424019-1

Mercedes W906 W907 Cut Off Electric Relay Module A0025424019

Product currently unavailable

Part no. A1695451940

Mercedes W169 W245 Fuse Box Module Unit A1695451940

Product currently unavailable

Part no. A2215401682

Mercedes W221 Cover Fuse Box Case Trim Panel Lid A2215401682

Product currently unavailable

Part no. A2215403250

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215403250

Product currently unavailable

Part no. A2115458601-1

Fuse Box Mercedes W211 CLS C219 Rear SAM Module Relay Control Unit A2115458601

Product currently unavailable

Part no. A2075401550-1

Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550

Product currently unavailable

Part no. A0009824823

Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823

Product currently unavailable

Part no. A1645400701

Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701

Product currently unavailable

Part no. A2049000600

Mercedes W204 Fuse Box Relay Control Unit SAM Module A2049000600

Product currently unavailable

Part no. A2115459001

Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001

Product currently unavailable

Part no. A2319003606

Mercedes R231 Seat Control Unit Module Driver A2319003606

Product currently unavailable

Part no. A9075450100-1

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

Product currently unavailable

Part no. A0005404750

Mercedes-Benz S CL Class W220 C215 Fuse Box Battery Connector A0005404750

Product currently unavailable

Part no. A2049060105-1

Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105

Product currently unavailable

Part no. A2479002516

Mercedes C253 Windscreen Camera Control Unit Module A2479002516

Product currently unavailable

Part no. A1645401801

Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801

Product currently unavailable

Part no. A2115400082

Mercedes S211 W211 Fuse Box Unit Cover Front A2115400082

Product currently unavailable

Part no. A1775404307

Fuse Box Mercedes C118 W177 W247 Engine Compartment Relay Box Module A1775404307

Product currently unavailable

Part no. A9075406960

Fuse Box Mercedes Sprinter W907 Prefuse Box Module F150/1 - MFB-1 A9075406960

Product currently unavailable

Part no. A6385454440

Mercedes W639 W906 Battery Terminal Fuse Box Control Unit Module A6385454440

Product currently unavailable

Part no. A2125406250-2

Mercedes W212 Positive Battery Power Distribution Fuse Box A2125406250

Product currently unavailable

Part no. A2215460935

Mercedes W221 W216 Fuse Box Cover Control Unit Trim Panel Lid A2215460935

Product currently unavailable

Part no. A2035454701

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

Product currently unavailable

Part no. A4475404326-1

Mercedes Vito W447 Fuse Relay Box Control Module A4475404326

Product currently unavailable

Part no. A2479006804

Mercedes W205 Multi-Purpose Windscreen Camera Control Unit Module A2479006804

Product currently unavailable

Part no. A2139065706

Mercedes W205 W213 Front Engine Compatment Fuse Relay Box Module A2139065706

Product currently unavailable

Part no. A1645403372-1

Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

Product currently unavailable

Part no. A0005400650

Mercedes Sprinter W901 W638 Fuse Box Relay Control Unit Module A0005400650

Product currently unavailable

Part no. A9065453001

Mercedes W906 Fuse Box SAM Relay Control Unit Module A9065453001

Product currently unavailable

Part no. A2059065806

Mercedes W205 W213 C253 Fuse Box Front Relay Control Unit Module A2059065806

Product currently unavailable

Part no. A2479061803-1

Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803

Product currently unavailable

Part no. A2129005722-1

Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722

Product currently unavailable

Part no. A2095452801

SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801

Product currently unavailable

Part no. A6399005400

Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400

Product currently unavailable

Part no. A0005408250

Fuse Box Mercedes W205 W213 C238 C253 Control Unit Module A0005408250

Product currently unavailable

Part no. A2115459301-2

Mercedes W211 W219 Fuse Box Rear SAM Module Electrical Unit A2115459301

Product currently unavailable

Part no. A2035453401

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

Product currently unavailable

Part no. A4475407880

Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880

Product currently unavailable

Part no. A6395400050

Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400050

Product currently unavailable

Part no. A2035453801-1

Mercedes W203 W209 Fuse Box Rear SAM Module Relay Control Unit A2035453801

Product currently unavailable

Part no. A1645403072

Mercedes ML W164 Rear Fuse Relay Box Module SRB A1645403072

Product currently unavailable

Part no. A1775404507

Mercedes V177 C118 W247 Fuse Box Relay Control Unit Module A1775404507

Product currently unavailable

Part no. A0015427419

Mercedes C140 W210 Multifunctional Purpose Relay Fuse Unit Module A0015427419

Product currently unavailable

Part no. A2229063805

Fuse Box Mercedes GLC X253 Engine Compartment Relay Box Unit A2229063805

Product currently unavailable

Part no. A2469068601

Battery Junction Block Mercedes W176 W246 Battery Plus Pole Terminal A2469068601

Product currently unavailable

Part no. A0009060086

Mercedes W205 Control Unit Power Distribution Box Electrical A0009060086

Product currently unavailable

Part no. A0045467640

Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640

Product currently unavailable

Part no. A4479060117

Mercedes Vito W447 Front Fuse Box Relay Control Unit Module A4479060117

Product currently unavailable

Part no. A1699001600

Mercedes-Benz W169 W245 48V Technology SAM Control Module Fuse Box A1699001600

Product currently unavailable

Part no. A2115456101

Mercedes W211 SAM Module Fuse Box Relay Control Unit A2115456101

Product currently unavailable

Part no. A9065454701

Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701

Product currently unavailable

Part no. A9065454301

Mercedes Sprinter W906 Fuse Box Relay Control Unit Module A9065454301

Product currently unavailable

Part no. A1645402372-1

Mercedes W164 W251 Fuse Box Fuse And Relay Module Rear Unit A1645402372

Product currently unavailable

Part no. A2045842982

Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982

Product currently unavailable

Part no. A1645403372

Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

Product currently unavailable

Part no. A9069006701-1

SAM Module Mercedes Sprinter W906 Fuse Box Relay Control Unit A9069006701

Product currently unavailable

Part no. A2129005912

Mercedes W204 Fuse Box Relay SAM Control Unit Module A2129005912

Product currently unavailable

Part no. A2129009705-1

Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705

Product currently unavailable

Part no. A1695450540

Fuse Box Mercedes W169 W245 Electrical Relay Control Unit A1695450540

Product currently unavailable

Part no. A0009822223

Mercedes W906 SAM Module Fuse Box Relay Control Unit Regulator A0009822223

Product currently unavailable

Part no. A2129060105

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129060105

Product currently unavailable

Part no. A1695456332-1

Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332

Product currently unavailable

Part no. A2219013000

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219013000

Product currently unavailable

Part no. A1645404601

Mercedes ML W164 Control Unit Module Fuse Box SAM A1645404601

Product currently unavailable

Part no. A2115455301

Fuse Box Mercedes W211 Rear Trunk Module Relay Fuse Box SAM A2115455301

Product currently unavailable

Part no. A2215450801

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215450801

Product currently unavailable

Part no. A1665405202

Mercedes ML W166 GLE C292 Engine Compartment Fuse Box Right A1665405202

Product currently unavailable

Part no. A6399000800

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

Product currently unavailable

Part no. A2129006429

Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429

Product currently unavailable

Showing 199-297 of 483 products