Squeaky wipers
in my view). But I followed their advice and no squeak for maybe the first 5 to 8 wipes and then it starts up again. 
Anyone else experience this problem with the stock wipers? or is there some product in the market I can apply to the windshield to solve this problem?
Appreciate the help!
1. Blade angle
2. Blade pressure
3. Arm pivont points
4. Blade condition
In my business I see people trying to cheap out and only purchase the inserts and not the entire blade. If you live in an area where there is a lot of heat, smog or dirt your blades life is reduced, in any case they should be replaced every six to twelve months, sooner in high dirt / smog areas. Chances are your blades simply need relacement. Old hard blades will not "flip" as direction changes this will cause the leading edge of the wiper to "push" against the windshield and hop or skip. If they are squeaking most liekly your windshield is dirty and have damaged the blade edges.
I am not sure about Mercedes but my BMW 7 series would perform micro movements in the blade arms every so often to keep the blade edges fresh.
in my view). But I followed their advice and no squeak for maybe the first 5 to 8 wipes and then it starts up again. 
Anyone else experience this problem with the stock wipers? or is there some product in the market I can apply to the windshield to solve this problem?
Appreciate the help!

in my view). But I followed their advice and no squeak for maybe the first 5 to 8 wipes and then it starts up again. 
Anyone else experience this problem with the stock wipers? or is there some product in the market I can apply to the windshield to solve this problem?
Appreciate the help!

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1. Blade angle
2. Blade pressure
3. Arm pivont points
4. Blade condition
In my business I see people trying to cheap out and only purchase the inserts and not the entire blade. If you live in an area where there is a lot of heat, smog or dirt your blades life is reduced, in any case they should be replaced every six to twelve months, sooner in high dirt / smog areas. Chances are your blades simply need relacement. Old hard blades will not "flip" as direction changes this will cause the leading edge of the wiper to "push" against the windshield and hop or skip. If they are squeaking most liekly your windshield is dirty and have damaged the blade edges.
I am not sure about Mercedes but my BMW 7 series would perform micro movements in the blade arms every so often to keep the blade edges fresh.

http://www.wikihow.com/Stop-Windshie...from-Squeaking


Your location shows Hong Kong, correct me if I am wrong but the air quality there isn't the best. That will have a detrimental affect on the life of the wipers too. In any case MBZ should replace your wipers....
disclaimer: I am not a representative of VALEO and therefore get my info secondhand....

Your location shows Hong Kong, correct me if I am wrong but the air quality there isn't the best. That will have a detrimental affect on the life of the wipers too. In any case MBZ should replace your wipers....
disclaimer: I am not a representative of VALEO and therefore get my info secondhand....
...thanks!!
...thanks!!
...thanks!!Hongkong air quality shouldn't be the problem otherwise mercedes wont sell their cars in hongkong.
I changed wipers to ones that were supposed to not chatter and that was fine for a couple of days, then it started up again.
I used a *very small amount* of tire shine on a sponge and ran it along the rubber blades. The chattering has gone and there's no film or streaking on the windshield.

Regards,
Don
The problem is that your windshield is exposed to the elements, a zillion bugs and other assorted crap that tends to stick to your windshield. At the same time, the blades are exposed to the same elements and the rubber will deteriorate.
Try dragging a new wiper blade over a dry window in your home - it'll chatter too.
The blades need to be cleaned regularly and replaced frequently.







