Glühkerzen wechseln - Wahrscheinlichkeit des Reißens | Posts 16+

Spark plugs replaced, instructions: https://community.dieselschrauber.org/en/viewtopic.php?t=29019

Great instructions!
I can only confirm that a warm engine is the most important factor in preventing glow plug failure.
"I tested this on my 2.5 V6 TDI AKE, which had new BAU cylinder heads installed at 260,000 km. After 120,000 km, the glow plugs needed to be replaced. They were very difficult to remove when cold. The threads of two of the glow plugs were rounded off on the outside!"
After that, the engine was warmed up to approximately 50 degrees Celsius. The other two glow plugs came out very easily.
Again, bring the engine temperature up to about 70 degrees Celsius, and the remaining glow plugs came out just as easily. The threads on the outside of the glow plugs were pointed. As mentioned, these were the original glow plugs installed from the factory in the new cylinder heads, so any contamination from ceramic paste or something similar from the previous installation can be ruled out.

Thank you .