Fuses and relays Volkswagen Polo Sedan, 2008 - 2015

If the backlight of the instrument cluster, headlights, cigarette lighter or stove fan stops working for no reason, this is a reason to check the condition of the fuses.

In the Volkswagen Polo 5 (2010-2022), the fuses are located in two places: in the passenger compartment and under the hood. To replace them, no special tools are required. The exception is the power fuse block attached to the battery.

The article describes the location of fuses and relays and a diagram of their decoding.

Fuse boxes in the engine compartment

In the repair and operating instructions they are designated as mounting blocks (MB) A and C. The first includes fuse links SA1-SA7 for protecting high-current consumers. For the second - fuses No. 1-6. The purpose is given in the table.

Location of power inserts

Mounting block A

Mounting block C

How to replace fuses on a Volkswagen Polo Sedan 2011 - 2014?

Users of our resource already know why a car needs a fuse block (hereinafter referred to as the fuse block) and what functions it performs. The main purpose of this device is to protect the vehicle's electrical devices from overvoltage. After reading this material, you will learn where the Volkswagen Polo Sedan fuses are located and how to replace them.

Volkswagen Polo Sedan

In order for all the electrical equipment of your Volkswagen Polo Sedan to work properly, it is necessary from time to time to devote time to a visual inspection of the fuse boxes. Often the cause of non-working headlights or, for example, interior lighting lamps is a malfunction associated with the operation of the power supply. First, let's look at the electrical circuits and purposes of each power supply.

In total, in a Volkswagen Polo car, regardless of the year of manufacture, there are three fuse blocks: one of them is located in the engine compartment, the other two are located in the passenger compartment.

Let's consider in turn the electrical circuit and the purpose of each power supply. Let's start with the power supply installed in the engine compartment.

Block in the cabin

In the repair and operating instructions, the mounting block in the interior of the Volkswagen Polo 5 is designated by the letter B. The fuses and relays in it are divided into 2 parts and are located on the left side of the instrument panel: the fuses are under the steering column, the relays are under the lower decorative trim of the instrument panel.

Circuit breakers

They are hidden under the lid.

On its reverse side there are tweezers for replacing burnt out elements.

The location of the fuses and the explanation of their purpose are shown in the photo and table below.

Relay

Volkswagen Polo interior unit relay

All relays in the car are located on a separate mounting block, which is located in the dashboard on the left side of the driver.

• R4 - pressure gasoline supply relay.
• R3 - starter blocking relay.
• R9 - air conditioning relay.
• R7 - relay for headlights. See fuses 57 and 58.
• R8 - fuel pump relay.
• R5 - power relay.
• R6 - spare seat.
• R10 - relay contact “X”.
• R1 - reserve seat.
• R11 - R15 are reserved.
• R2 - windshield heating relay. See fuse 56.

Removal and replacement process

To replace, you will need a multimeter, a slotted screwdriver and a 10 mm wrench.

Under the hood

To replace the fuse in block C, simply remove the cover from it, unfasten the plastic latches and pull out the blown element with your fingers. For block A the procedure is more complicated:

1. Press the latch and open the MB cover.
2. Check the condition of the fuses:

• Switch the multimeter to ohmmeter mode.
• Apply one probe to each terminal in turn, and the second to the L-shaped metal plate. If the device shows 1 or infinity, this means that the fuse link connected to the terminal has burned out.

1. Unscrew the 5 nuts securing the terminals and disconnect them.
2. Unscrew the nut on the C block side and press the plastic lock on the battery side.
3. Remove the power fuse block.
4. Install the removed elements in reverse order.

Checking the health of fuses

If any vehicle device fails, it is necessary, using Tables 1 and 2, to determine which fuses are served by this element. Then you need to turn off the ignition.

In some cases (failure of the engine control unit, generator, side lights, cigarette lighter, etc.), it is better to remove the negative terminal of the battery. Then, using special dielectric pliers (you can use pliers), you need to disassemble the necessary fuses.

Testing fuses without removing them from the block may give an erroneous result.

Fuses in transparent housings can be checked visually. It should be remembered that this method of fault monitoring does not have a 100% guarantee, since sometimes it is not possible to see a microcrack in the conductive insert.

It is best to use the multimeter in the "diode", "resistance" or "continuity" test positions. The resistance value of a good fuse is approximately zero. The resistance of a blown fuse tends to infinity (the multimeter displays “1”).

Where is the fuse located

The Volkswagen Polo cigarette lighter fuse is located under the steering wheel on the right side in the first row from the edge. The fuse box is closed on top with a special plastic cover. Any driver can easily find this device without a hint. Fuse boxes in Volkswagen 2012 and 2013 problems are located there.

Check and replacement

It is difficult to replace a device without available tools if it does not work. To do this, it is more convenient to use pliers or tweezers. Determining where this part of the car is located is not so difficult - it is always blue.

The replacement procedure is as follows:

1. The cover is carefully removed.
2. Below is a fuse block, among which it is necessary to determine the one that is responsible for the operation of the cigarette lighter.
3. Its power is 15 A. The insert must be replaced with exactly the same part.

This car has a standard fuse for the cigarette lighter.

The most common malfunction of a device is the formation of a defect when it overheats. It's easy to pick out this little detail. A working fuse has a transparent body, so the metal wire is clearly visible through it. It will be complete. Faulty - wire break.

There are fuses with opaque housing. In this case, the element has a special window through which the spiral is clearly visible. If its integrity is damaged, the part must be replaced. You can repair the fuse yourself.

Improved Polo cigarette lighter illumination

Users of cars manufactured before 2010 often complain that the backlight of the standard device is not enough - the device is invisible in the dark. As an improvement, the modern market offers options.

• Replacing the standard lamp with a brighter one. In this case, a diode illuminator of similar power is ideal.
• Installing another cigarette lighter. In stores you can buy a factory version of the cigarette lighter, suitable for mounting under the car.
• Replacing the case with a model of a different color.

Fuse location diagram for a Volkswagen Polo sedan

Whether it's a cooling system motor that doesn't work or a windshield washer that doesn't work, it doesn't matter. Various electronic systems of the car are responsible for all elements. Sometimes you wonder: does automation hold the reins of power over you or are you trying to dominate it? I immediately remember the Terminator with the machines that took over the whole world.

The creators of the first internal combustion engine cars would have been greatly impressed if they had discovered with their own eyes chipsets and a great variety of wires in the insides of modern “iron horses”.

Previously, the traveler car was held in high esteem, the main task of which was to move from point A to point B. Now only lazy or incompetent car manufacturers leave their creations without basic details that create comfort in the car.

Electronics and the enormous pace of its development are to blame for everything. Isn't it a miracle of technology - heated rear window? After all, there is nothing complicated here, just pure physics: the circuit is closed, current is supplied to the contacts connected by thin filaments on the surface of the glass, the conductor heats up, and the defrosting process is started.

The Volkswagen Polo sedan is a modern car, in which a whole arsenal of various electronic “gadgets” is hidden, including a rear window heater.

The main control post that distributes the current throughout the circuit is the fuse box. It protects the network from voltage surges that can damage vehicle mechanisms.

Therefore, if problems arise with one of the components of the Polo sedan, many experts first advise checking the fuse box.

And only then, provided that it is functioning properly, study the damaged components of the machine.

The energy generated by the generator is consumed by almost all elements of the car. These include lighting devices and various auxiliary systems, which are a dime a dozen today, as well as standard car devices such as the ignition and starter.

Each component on the Polo sedan has its own type of fuse. The hardest thing is for those fuses that control the most important consumers of electricity - lighting equipment, cooling system fan, air conditioning compressor, as well as the notorious rear window heater (yes, on the Polo sedan it consumes a huge amount of energy).

Helpful information

There are a few things you need to know about fuses:

• the machine should always have suitable fuses of each type in reserve;
• Repairing this part is strictly prohibited;
• installing an unsuitable or repairable fuse can cause a fire, electrical failure or an accident;
• You cannot install fuses designed for a higher current supply than the factory part.

To protect yourself, it is important to remember that you cannot replace a removed fuse with any available parts, even for a short period of time.

Location

In a 2012 car, the required element is located at number 42 and has a rating of 15 A. In other modifications, the fuse can be installed in a different location.

The photo above shows where the fuse is located in the most popular modification common in the CIS.

Connection diagram

Fundamentally, the connection diagram of the device is no different in the sedan, hatchback or station wagon version. Below is the electrical part and the complete connection cycle of all components of the cigarette lighter power circuit.

For ease of perception, the highway is highlighted in blue.

Replacement instructions

To remove the device, proceed in the order shown.

1. Turn off the ignition, open the hood and open the circuit. To do this, you need to remove the wire from the negative terminal of the battery.
2. We insert specially curved nails or nail scissors into the cartridge to press in the fixing grooves (see photo).
3. We take out the metal cartridge with the wire block and disconnect the plug. It must be removed by pressing the corresponding fasteners.
4. Use a small screwdriver to bend the plastic filter clips and remove them.
5. You can now install the new part. The assembly step is performed in the reverse order of disassembly. The video below will tell you more about how to remove the cigarette lighter on a Volkswagen Polo sedan.

Sources

• https://rus-avtomir.ru/predohraniteli/prikurivatelya-polo
• https://vsepredohraniteli.ru/volkswagen/polo-sedan.html
• https://AutoTuning.expert/prikurivatel/predohranitel-volkswagen-polo.html
• https://sto-AvtoStroy.ru/zashchita-avto/shema-predohranitelej-polo-sedan.html
• https://otdelka-remont.ru/remont-prikurivatelya-polo-sedan/
• https://DaciaClubmd.ru/lighter/prikurivatel-volkswagen-polo
• https://avtoblokrele.com/blok-predohranitelej-i-rele-volkswagen-polo-sedan/
• https://art-lg.ru/volkswagen/gde-nahoditsya-predohranitel-prikurivatelya-v-folksvagen-polo-sedan.html

Relay Polo

A standard 2001 and later Volkswagen has multiple relays. Parts are needed to safely turn on high-power equipment. The low side is connected to the control elements, the high voltage side cuts into the power line.

Air conditioning system

The switch for the R9 air conditioning system completely powers the entire device and is located in the interior mounting block installed at the end of the dashboard.

Main relay

The part is located on the bulkhead between the engine compartment and the car interior.

Switch position relay

When SA3 is turned on, the ignition switch is unloaded. The part is necessary for stable starting.

Relay regulator

The specified element is shown using the example of a Valeo generator. In the Bosch modification, the part looks different. The function and purpose of the devices is the same.

Cigarette lighter repair

The standard device is a collapsible module - in fact, it can be repaired if a malfunction is detected. On a VW Polo, the unit does not need to be repaired. The parts are sold assembled and are cheap.

Usually the entire part is removed from the car and replaced with a known good one.

Causes of cigarette lighter failure

Among the common occurrences, factors stand out.

• Use of the device for purposes other than its intended purpose. Individual drivers often use the device as a charger or power source for powerful consumers. The device cannot withstand the load and fails.
• Short circuit in the network. Water ingress, damage to wiring and loosening of contacts provoke short circuits and failure of the unit.
• Careless use of the device. Each unit must be operated carefully. Over time, the fasteners and body of the device may become deformed.

How to remove and disassemble the cigarette lighter

The principle of the procedure is the same for cars 2011-2016. The bottom line is that the design of the part is quite primitive and does not require modification.

To disassemble the cigarette lighter you will need to follow a sequence of steps.

• Disconnect the car.
• Using a special tool or a “homemade device”, press out the core fastening terminals.

• After this, remove the cigarette lighter from the plastic socket.

• Next, you will need to disconnect the terminal of the contact group and dismantle the device.
• The next step is to remove the plastic casing of the device. To do this, you need to take an awl or a thin screwdriver and pry off the expansion clamps.
• After this, the socket can be removed and the contacts from the backlight bulb disconnected.

Troubleshooting the food chain

On 2022 cars, some users encountered problems with the cigarette lighter line. Similarly, faults can appear in older cars.

To find and eliminate the malfunction, the entire circuit must be completely checked. The procedure begins with diagnosing the fuse. Next, the power line and the cigarette lighter itself are diagnosed.

Changing the backlight bulb

In rare cases, the light on the cigarette lighter burns out. To replace the illuminator lamp, you will need to dismantle the device and disassemble its housing. A standard lamp of a fairly common standard size is used inside.