Car owners share–Replacement of ignition coils at 10W kilometers–Comparative analysis of old parts and the importance of replacement_Use car, Use car

Car owners share–Replacement of ignition coils at 10W kilometers–Comparative analysis of old parts and the importance of replacement

MortonCommons

August 17, 2024

Catalogue

— the role of ignition coils
— replacement cycle of ignition coils
— Aging performance of ignition coil
— Ignition coil failure
Ignition coil display
-get in the car and start disassembling and disassembling.
— dismantle the ignition coil
-the experience of installation and commissioning
— Summary
Do-it-yourself DIY, enjoy the sense of achievement, happy!

Hello, brothers in the forum, Hello, everyone!

Today to hand in the homework, F18 10W km replacement ignition coil and old parts analysis!

As the car is getting older, I feel that even if the car changes the foot glue, it will shake a little when idling. Although there is no failure code, it is also an ultimatum initiated by the car to jump the fault code. The car, 7-minute maintenance, 3-minute repair, there is still a difference between driving and driving!

Take advantage of the 618 activity, bought the ignition coil to install, found that the installation is not shaking, second, the ignition coil disassembly is really not too easy, do not need any tools! There are picture and text tutorials below! And the ignition coil brand officially also has installation tutorials!

— the role of ignition coils

The function of the ignition coil is to change the low-voltage direct current into high voltage, the voltage can reach tens of thousands of volts, and the spark is ionized through the air by the spark plug in the cylinder. The core components of the ignition device are the ignition coil and the switchgear. By increasing the energy of the ignition coil, the spark plug can produce enough energy sparks!

— replacement cycle of ignition coils

Generally, the ignition coil should be replaced every 8-100000 km. When the engine is running, there is often tens of thousands of volts of high voltage pulse current on the ignition coil. because it works in the environment of high temperature, dustiness and vibration for a long time, it will inevitably cause aging or even breakage. If it is not replaced in time, it will affect the working performance of the engine. However, the 100000 km we are talking about is not a fixed replacement cycle, usually as long as the ignition coil works properly and there is no obvious aging on the surface, it does not need to be replaced.

Moreover, the aging ignition coil will reduce the ignition energy a lot, resulting in an increase in engine fuel consumption, a decrease in power, and, in serious cases, a fire break, etc., which is very harmful to the engine, especially when the engine has a ternary catalytic converter. So when we find that the ignition coil has been aging, it is necessary to replace it in time!

If the ignition coils on the vehicle need to be replaced because of aging, then even if only one failure occurs, it is best to replace all of them, because the others are in similar condition!

— Aging performance of ignition coil

The easiest way to judge the aging of the ignition coil is to open the engine cabin and directly observe whether the ignition coil has the symptoms of glue overflow, burst, connecting pipe and high-pressure nozzle ablation. If you want to know whether the ignition coil on the vehicle is working properly, there is a relatively simple and practical way: hold the fire coil with your hand after the vehicle has been working for a period of time. If you can hold it, it is normal. If you can’t hold it (hot), it indicates a fault, usually an internal short circuit!

— Ignition coil failure

When the ① is idling, the car body jitters obviously. Observing the outlet of the exhaust pipe, the exhaust gas from the car has obvious intermittence, at the same time, the exhaust pipe trembles badly, and the sound of “protruding” can be heard clearly.

② is in the process of driving, when the rotational speed is less than 2500 rpm, the car body trembles obviously, and the acceleration is weak; when the rotational speed is more than 2500 rpm, the sense of jitter disappears

③ is to open the engine cover, observe the running engine, and find that the engine has obvious jitter. This kind of jitter obviously does not belong to the jitter under the normal engine working condition, and the jitter range is very large.

Ignition coil display

Try NGK’s ignition coil with NGK’s spark plug while the 618 is active. The original factory is Delphi’s, and the original car can be removed below.

The packaging is pretty good!

-get in the car and start disassembling and disassembling.

Start removing the engine cover!

I am PWG turbine (mechanical vacuum exhaust gas bypass valve actuator). To remove the hood, you need to unplug the vacuum tube! After the 14 models are all EWG (electronically controlled exhaust gas bypass valve actuator), the engine hood does not have any connection with the body, just remove it!

The vacuum energy storage box on the engine hood is connected to the vacuum tube!

— dismantle the ignition coil

One independent pen ignition coil per cylinder

Just break it apart. That’s how it’s designed. It’s very simple.

Fully open!

Unplug the power port! Easy and easy!

Pull up, don’t be afraid, work miracles!

Pull out like a radish, the ignition coil body appears, I this yellowing, normal should be silver! Maybe it was caused by the water in the engine compartment before, but I don’t know much about it. If you understand, you can tell me to leave a message. Thank you!

The spark plug is on the inside!

There is a yellowish-brown stain in the ignition coil cavity, I do not know how it is caused, whether it needs to be cleaned, have a clear message to answer ha!

The coil removed, the normal color of the outer ring is silver!

The original factory is Delphi ignition coil, hot hand, hot hand!

The new ignition coil is ready to be installed, and it can be installed in the opposite order according to the dismantling order, simple and easy!

All the new ignition coils have been installed, so don’t be too simple!

What is the reason for the yellowing of the Delphi coil removed from the original factory for 10W kilometers? Is there water in the engine compartment, or is the spark plug blowing up? If you know, leave a message and let me know. Thank you!

-the experience of installation and commissioning

① starts the car and sits in the cab, the jitter of the car is reduced a lot, if you don’t feel it carefully, it’s almost there, mute and comfortable!

② ignition effect is better, after all, the original has been aging, the engine runs more smoothly and powerfully, it seems that the power has restored the texture of the new car!

— Summary

Did not expect the replacement of the ignition coil is so simple, do not need any tools, you can use your hands!

The replacement of the new ignition coil really brings a different body feeling. I didn’t understand it before, but now I realize it’s important. although there is no fault code, there is nothing wrong with 10W km maintenance!

My sharing is only for your reference, does not mean that it must be changed, everyone’s concept of owning a car is different, depending on their own situation!

I am just a car owner, not a businessman, not an advertisement, just share my mind process with everyone in the forum!

Friends who have questions can also leave messages or personal messages. I will answer them all. In addition, there are fun modified car users to join.

Like a friend, like, leave a message, thank you, take a break from your busy schedule, writing a post is not easy, haha!