Clk 270cdi water from header tank going into washer bottle??

[alf1956]

Hello fellow members'
I have a very strange thing happening to my 55 plate Clk270cdi auto, I have noticed that I am putting lots of water in the header tank on a daily basis at first I thought it may be the problem with the valeo radiator scenario but I checked the transmission fluid regular & the level has not risen so today I was topping up the header tank & the washer bottle so with the top of the washer bottle I topped up the header tank & noticed to my amazement that the water level in the washer bottle rose as I poured water in the header tank & subsequently the water level went down in accordance with the water bottle level going up! I also noticed that I have a tiny pinhole leak on a plastic elbow situated at the rear of the engine on the passenger side (I will attach a photo). This has puzzled me no end as I cannot see the connection between the header tank & washer bottle & will be grateful for any advice on this problem

 

[Dec]

Do you have heated windscreen washer tank?

Dec

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[Joderest]

would be surprised a 2005 merc would have this system, but it would be the perfect reply to the problem. Will wait to see if O/P states he has the system.

 

[jaymanek]

heated washer bottle for sure.

 

[alf1956]

Hello
I looked at the washer bottle which is different to the shown in the video & sits low down just below the headlight & it does have 2 x metal pipes coming out of the top which I did think was very strange so it points to the problem that is shown in the video so hopefully the washer heating element is the same as in the video & its just an "O" ring that's failed. Has anybody done this job before as any advice would be gratefully received.

 

[alf1956]

does anybody know what the plastic elbow in the photos are please, I have put a white cross on the part that is leaking

 

[Dec]

Video is by way of explanation, yours, I think is a W209 if it’s a 2005 car?

Got better pictures of the scene?

Mercedes Benz CLK W209 2005 Windscreen Washer Bottle Free Uk Delivery!!! | eBay

MERCEDES CLK 200 C209 2007 RHD WINDSCREEN WASHER TANK BOTTLE 2038600360 | eBay

Dec

 

[alf1956]

Yes that looks like mine, I have seen a few on ebay & one is about 5 miles where I live so I am hoping to get it tomorrow & get it fitted asap I'm just hoping its not a major job fitting it

 

[Dec]

Can you clamp the rubber hose to stop the coolant entry into the tank?

Dec