rEAD THE POSTS STILL 2 ANSWERS
 

OK,had my 2010 GLK 3 weeks,fill the windshield washer fluid to the top and it will slowly leak all over the ground but not the fluid in the tank.I have noticed the difference in the tube compared to my 08 C230 as this one is actually flexable.The posts on here say the seals are bad or the tank is cracked.My dealer says it is a new safety feature where the down spot is not sealed to the tank but simply pushed in so if you fill to the top of the spot it will run out.Reason in a front end accident the spot will collapse and the fluid will run down not act like a gysor blowing up.Thoughts ?:confused:

Its news to me with the whole safety filler neck..from my experience Ive dealt with a lot of cracked resvoirs, prob 10 within this year..my 2cents

Thanks for your response do you remember what model years they were.My GLK is still under warranty for 6 more weeks so if it is a cracked resvoir I definitely prefer MB pay to replace it.