2017 B-Class Water Leak - a common issue?

[TeddyRuxpin]

Hi,

My brother has 'inherited' a 2017 B-Class. It's very low milage and has full MBSH. Garaged most of its life.

He lives in Germany and it's sub-zero at the moment - he is noticing ice on both the inside of the windscreen in the mornings, which obviously indicates a leak.

Given that the car has seen so little action, is there a common leak location that I'm not aware of with this era B-Class?

He says the carpets aren't wet but from my experience it can be hard to tell in the winter.

Cheers

 

[colinallcars]

Hi,

My brother has 'inherited' a 2017 B-Class. It's very low milage and has full MBSH. Garaged most of its life.

He lives in Germany and it's sub-zero at the moment - he is noticing ice on both the inside of the windscreen in the mornings, which obviously indicates a leak.

Given that the car has seen so little action, is there a common leak location that I'm not aware of with this era B-Class?

He says the carpets aren't wet but from my experience it can be hard to tell in the winter.

Cheers

Possibly just condensation? Had no leaks on our 2013 B Class.

 

[TeddyRuxpin]

The car has been used recently with the AC on and his other car/no local cars are showing the same signs. I did wonder if the AC needed a re-gas (hard to tell in the winter) and so the AC isn't brining the humidity down, but I think the extent of it is a bit too extreme for a bit of humidity.

In the attached photo, the outside screen is actually clear/scraped, the ice is on the inside.

 

[radek093]

The car has been used recently with the AC on and his other car/no local cars are showing the same signs. I did wonder if the AC needed a re-gas (hard to tell in the winter) and so the AC isn't brining the humidity down, but I think the extent of it is a bit too extreme for a bit of humidity.

In the attached photo, the outside screen is actually clear/scraped, the ice is on the inside.

Hi, I don't know how else to contact you. Have you been solving a problem with the om642 where the car was jerking around 1500rpm at 1/4 throttle.. could you send me a private message?

 

[TeddyRuxpin]

Hi - it was solved after a gearbox oil service, thankfully.

 

[MrGreedy]

It might be blocked or partially blocked drain holes. That has (thankfully as relatively easy and cheap fix) always been the case on cars when this has happened to me.