Streaking Badly, I did use search function :)
The washer fluid I use is the one from the dealership. The problem usually worsen after a 10-20+ wipes in a rainy day (after blades becomes really wet???
)It did get slightly better after I changed the wiper, but the problem came back again within 1 month of usage. I asked the dealer and they told me it could be oil or tree sap and they buff it real hard, still pretty useless

I'm thinking to just use goo gone or vinegar or some alcohol on the windshield. What should I use to clean the rubbers on the blade? That's one thing I have no idea. I attached a few videos to show how bad it is. I'm at a huge disadvantage for driving at night. The wiper streaks just made it worse. This is a huge safety issue for me

Thank you guys
https://www.youtube.com/watch?v=w62K...ature=youtu.be
https://www.youtube.com/watch?v=biMl...ature=youtu.be
https://www.youtube.com/watch?v=7p1p...ature=youtu.be
https://www.youtube.com/watch?v=GDog...ature=youtu.be
Last edited by rookiezxc; Mar 21, 2015 at 06:10 AM.

Oh yeah, I just changed my wiper into OEM from Benz dealer 2 months ago. It got better for the first few weeks, then it's the worsen again

Do you guys think the windshield itself is moldy? I remember when I was cleaning off the chromes on my previous car with gasoline. Will it be okay if I use gasoline on my windshield??? The only thing that kinda makes sense is goo gone, that's the only thing I haven't try honestly.
Last edited by rookiezxc; Mar 21, 2015 at 06:13 AM.
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startman1954 No, I don't use car washes. I usually wash it by hands every 2 weeks.
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I found McGuires scratch x by experimenting over the years is the best hands down window glass cleaner/ploish I know it sounds strange but please trust me and give it a go.
It coats the glass with something which eliminates the film of water causing the streaks also a lot of the water beads up and blows off with the wind when driving.
I also use it on the inside to stop fogging streaks and smears works exactly as I have described it.
Dave.
NZ-Merc, wow, never have thought of it honestly. A scratch removal chemical can be used to windshield and put a water beading coat on it too? I will definitely try it after using the isopropyl alcohol!
I'm gonna call the MBSeattle since I got the car CPO from there just months ago and it had this issue since week 1 / week 2 when it starts to rain pretty hard.
http://www.griotsgarage.com/product/...Picks&refType=
http://www.chemicalguys.com/JetSeal_...wac_118_16.htm

nelson_g Cool, I like the jetseal, but since I got an appointment with MBSeattle this Friday, I'll let them take a look at it again throughly this time. I'm hoping that they wouldn't charge me anything or least a very very reasonable amount as I got this car as a CPO and hoping no issues will happen to the car that I need to pay it out of my pocket

So far I got free (Spot) re-paint on the front and rear bumper since the clear coat is not throughly applied on both bumpers. (Free of Charge
)Wiper blades were changed just 1 month after the purchase of a CPO car
($70ish)Service B (18k-20k Miles) that's coming in 1 or 2 months

Thank you guys for being patient and staying here to help me. Much appreciate it!


