Engine oil cap

[dan-mb]

So gents
I cant get my CLK (209) engine oil cap off to top it up...cant even get it to move slightly any tips? its one of those caps that doesnt have a proper 'grip handle' just round with a little grove grip at the sides.

Thanks in advance DAN-MB

 

[Bellow]

Jam jar trick is an elastic band around perimeter of lid to provide more grip.
My trick for my oil cap is a gentle tap with a plastic mallet to free its grip.
My trick for my brake reservoir cap is hammer and screwdriver.
Start gentle before going mental.

Edit PS: If there's no raised central bar to tap on to loosen with mallet - you probably need some form of strap wrench.

 

[flango]

We used to take the tough ones off with the oil filter strap I'm sure some had never been off from new

 

[dan-mb]

Thanks ill give it a try. last time i started off 'gentle' was with the CD changer....it wasnt working so i whacked it with a mallet and it soon gave in and produced the CD magazine.
I was thinking perhaps it was technique not power!

 

[Bellow]

If the cap is as I imagine it - with vertical indentations/grooves around the perimeter - then engaging one of those with the end of a screwdriver and tapping with a hammer in the appropriate direction should free it. Just be careful not to break the cap and have bits of it fall into the engine.

 

[E270 Owner]

Remove it after you have been on a run and let the engine cool for 2 mins.

These are useful for oil filter removal, and tough grip situations > Mad Grip Gripper Gloves