This morning I replaced the dipstick tube (the Orange/Yellow one). First, carefully remove all broken pieces including those inside the lower tube.
First I tried to just push the new tube on, I couldn't get it to fully seat without risking breaking it. It's a bit of a tight fit. Next, I took a small pan of not boiling but very hot water (just heated it on the stove) dunked the flange into the hot water for maybe 30-45 seconds. Then slid the tube on until it stopped, then rapped the top of the tube with the heel of my hand and it easily popped on and seated properly. I then gave it a few minutes to cool before inserting the dipstick. Good as new.
First I tried to just push the new tube on, I couldn't get it to fully seat without risking breaking it. It's a bit of a tight fit. Next, I took a small pan of not boiling but very hot water (just heated it on the stove) dunked the flange into the hot water for maybe 30-45 seconds. Then slid the tube on until it stopped, then rapped the top of the tube with the heel of my hand and it easily popped on and seated properly. I then gave it a few minutes to cool before inserting the dipstick. Good as new.