How to change candles on a Volkswagen Polo sedan

Spark plugs are an important part of any car. Its quality directly affects the operation of the engine. The service life depends on many parameters such as high temperatures, fuel quality and various additives.

Often, breakdowns of the Volkswagen Polo Sedan are associated precisely with spark plugs. If the engine twitches, there is a loss of power, the engine runs unevenly, fuel consumption increases, then the first step is to check its condition. After all, the negative factor of a faulty part is that an idle spark plug can cause failure of the exhaust gas converter, as well as increase the rate of emission of gasoline and toxic substances into the atmosphere. Therefore, you need to constantly monitor the technical condition of the candles.

All automakers recommend changing them after an average of 15 thousand kilometers. As a general rule, for the Polo sedan, this is 30 thousand km using only gasoline, and 10 thousand km using gaseous fuel.

For automobile engines, candles of the VAG10190560F type or their analogues offered by other manufacturers are used.

There are two reasons why it is necessary to change the spark plugs in a Volkswagen Polo":

1. Mileage from 30 thousand km or more (these figures are indicated in the rules for car maintenance).
2. Typical engine failure (floating idle, cold engine, etc.).

Checks of the technical condition must be carried out in a specialized service center. But if the car was bought without a guarantee, and all the necessary tools are available, then the replacement and inspection can be carried out on your own.

First you need to prepare all the necessary tools:

1. Wrench for 16 candles 220 mm long.
2. The screwdriver is flat.

All work must be carried out on a cold engine. The surface of all parts must be pre-cleaned to prevent debris from entering the combustion chamber.

After all the preparatory work, you need to remove the protective plastic casing from the engine. Its latches are located on both the left and right sides and open with normal pressure. Under the cover you can see four ignition coils along with low voltage wires. To get to the candles, you need to remove all these parts.

The coil is usually removed with a special tool, but, as a rule, this device is found only in technical services. Therefore, a simple flat screwdriver is used to remove it. The restart starts from the first loop. To do this, bring the sharp end of the screwdriver under the part and carefully lift the entire structure up.

After all the coils are torn from their places, you need to remove the wires from them. There is a latch on the coil block, when pressed, you can remove the terminal with wires.

After that, all ignition coils can be removed. It is necessary to check the contact point between the coil and the candle. If the connector is rusty or dirty, it should be cleaned, as this can cause the spark plug to fail or, as a result, the coil to fail.

Then use a spark plug wrench to blow out the spark plugs one at a time. Here you should also pay attention to its status. A workpiece is considered to be one on the surface of which there are no deposits of black carbon deposits and various liquids, traces of fuel, oil. If such signs are found, a set of measures should be taken to identify the malfunction. It could be a burnt valve, resulting in low compression. Problems can also be in the cooling system or with the oil pump.

Install new spark plugs in reverse order. From the recommendation, it is worth noting that they should be wrapped manually, and not with a handle or other auxiliary devices. If the part does not go along the thread, it can be felt and corrected. To do this, unscrew the candle, clean its surface and repeat the procedure. Tighten to 25 Nm. Overtightening can damage the internal threads of the cylinder. Which will include the main review.

The ignition coil is inserted until a characteristic click, then the remaining wires are attached to it. All terminals must be placed strictly in the places where they were. Improper installation may damage the vehicle's ignition.

Subject to simple recommendations, difficulties with replacing candles should not arise. This repair is simple and can be done both in the garage and on the street. Do-it-yourself replacement will not only reduce professional labor costs, but also save you from problems such as difficult starting, loss of power and high fuel consumption.