Bosch Wiper Blades - Alfa Romeo Forum
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(Post Link) post #1 of 20 Old 28-09-16 Thread Starter
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Bosch Wiper Blades

Hi all. Just fitted new Bosch blades on the 159 & would you believe it they are smearing on the drivers side right at eye level!!! Typical. Passenger side is fine. Any thoughts.
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screen contamination... grab some vinegar/glass cleaner/neat screen wash/anything high detergent... clean screen and blade, then you *should* be good to go
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I bin'd my Bosch blades, rubbish, Valeo are perfect.

Last edited by Top Down; 05-10-16 at 07:52.
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Valeo are cheap French tat. Currently using Championn on the Evoque.
Always used Bosch on the Alfas.

I've used Bardahl's "Sineo" waterless screen cleaner on the last 3 cars.
shifts all the gunk really well. Don't know if you can source it in the UK.
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Normally get Bosch wiper blades but the convenient spares place sells Valeo which I needed for my daughter's polo. They were crap!
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Obviously the main problem is diesel oil contamination after a motorway run. So a proper 'cream' cleaner is needed. However, if the smearing is only up against the right hand pillar then you have the known problem of the linkage distorting which reduces the pressure the arm can apply. See the stickies for an easy fix to the mounting rubber.
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Using a bit of old clay works quite nicely too.
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Autoglym Fast Glass to clean, then Carlack Glass Sealant.

I find rain and dirt just sheets off the windscreen......
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Wow! Really surprised the support for the Bosch and not the Valeo, must have been something wrong with the Bosch ones I had and the Valeo must be some special ones reserved for special people.
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I must have the "special people" Valeos.
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My Brera had Valeo fitted when I bought it, they were fine, replaced with Bosch, they were fine, now got Valeo again and guess what...................they are fine. I occasionally clay my windscreen or use a pan cleaner to get the crap off, that might help i suppose.
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Wiper blades all seem much of a muchness - but wax from a car wash or road grime makes a wet screen positively dangerous. I've had to get out 2400 grit wet & dry on pool cars to cut through that bloomin' car wash wax.
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Hi all thanks for the replies. Cleaned screen but no difference. If the problem was the wiper arm not applying enough pressure then surely i would have had the same problem with my old Bosch blades which incidentally i've stuck back on while I sort my refund out.
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Originally Posted by alfagumper66 View Post
Hi all thanks for the replies. Cleaned screen but no difference. If the problem was the wiper arm not applying enough pressure then surely i would have had the same problem with my old Bosch blades which incidentally i've stuck back on while I sort my refund out.
New blades will be stiffer so need more pressure to flatten. But to be exact, the well known mounting failure only gives an unwiped portion against the pillar. If this is your problem then look at the stickies on how to apply a 'penny washer' to the mounting bolt.
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Hi "Old engineer". You seem to know what you're talking about so i'm going to take your advice. However i'm a bit thick. What are "stickies" & how do i find them? Cheers.
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Hi "Old engineer". You seem to know what you're talking about so i'm going to take your advice. However i'm a bit thick. What are "stickies" & how do i find them? Cheers.
When the site techies changed the format of the top entries (always remaining at the top and hence the name sticky) I did wonder how many people would find them. My entry on steering attracts PMs because people can't find it.

Anyway, at the top are the stickies and amongst them is this one...
159,Brera & 946 Spider - Owners Tech info - Fault Guides and more!

When you go down the list you find the wiper fix. But to help you here is the link...
http://www.alfaowner.com/Forum/alfa-...ng-itself.html (Brera wiper eating itself?)
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Bosch every time for me
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My wife drove the car for the first time in the rain last week and told me she had purchased a pair of bosh blades are the windscreen was smearing badly and would i be a love and fit them.

I decided to claybar the windscreen first and what a difference that made !

Looks like a new screen and the new wipers now clean perfectly

ian
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Very slightly off topic but I fitted Bosch replacement wipers on my ten year old Brera. They worked fine but the ugly/large connecting knuckle just annoyed me ( OK I could be a bit weird).

Fortunately, I had kept my original Alfa blades and found it quite straightforward to remove the old rubbers from these and replace them with the rubbers from my Bosch replacements.

They work perfectly and look neat. Refills for me in the future.
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My Bosch (discounted through Euro Car Parts) were an exact match to the originals. Bosch code is AO85S.

But Bosch also do a 'multiclip' version AM22U/AM18U which you can see is a 22 inch drivers side and wrong (should be 23 inch). This is the one with the ugly clips for all cars.
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