This episode of Bosch TechNuggets is all about what can go wrong when changing spark plugs - the 5 most common mistakes.
Spark plugs can withstand a lot and have a long service life, but at some point the time comes when they need to be replaced - it is best to simply follow the vehicle manufacturer's instructions.
If strange noises, increased fuel consumption or starting difficulties occur, it may be necessary to change the spark plugs earlier.
In such a case, it is important that not only the defective spark plug is replaced, but all of them at the same time and to make sure that the correct tool is used to tighten the new spark plugs!
Cleanliness is also very important when changing, since dirt that falls into the combustion chamber can cause considerable damage.
The use of lubricants or readjustment of the electrode gap is also NOT recommended. Watch the video to find out why.

More information: www.boschaftermarket.com