Good morning!
Decided to change the spark plugs on my car. I read beforehand how others do it. They write that changing the plugs is extremely inconvenient. Well, what can you do, they need to be changed.
Buying DensoIKBH20TTtwo boxes of four pieces each. This time I bought them from a distributor at an auto shop.
First thing I do is disconnect the battery cable and the VVB fuse. Then I remove the decorative cover on the engine.
I started with the left side. Removed the side plastic and the air filter housing as one unit. It's straightforward: carefully unplug the sensor connector from the air filter housing, loosen the hose clamp of the intake tube, disconnect them, then pull up the air filter housing to remove it.
Then I unscrewed the protection for the left TNVD.
Carefully removed it. Unscrewed the bolts that hold the ignition coils and pulled out the coil for the first cylinder. Unscrewed the bracket holding the A/C hoses.
Removed all other coils and pulled out the old plugs. The coil for the fifth cylinder had to be taken out with its spark plug bushing as well, because it wouldn't come out any other way.
Almost all of the old plugs are cracked.
New plug:
Put everything back in reverse order. Tightening torque for the spark plugs is 21Nm, ignition coil mounting bolts - 10Nm.
Now the right side. Just like on the left side, I removed the side plastic, air filter housing, TNVD protection. Then I unscrewed the cover holding high voltage wires of the inverter and the wires themselves. Unscrewed the mounting bolts for the ignition coils and pulled them out. Here the coil for the third cylinder wouldn't come out because it was hitting the bodywork. So I had to take it out with its spark plug bushing.
Put everything back in reverse order. Tightening torque for high voltage wire mounting bolts and inverter covers - 8Nm.
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