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How important is the "aero" part of a beam wiper? #4593471
12/03/17 09:44 PM
12/03/17 09:44 PM
Joined: Dec 2002
Posts: 42,085
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,085
New Jersey
My 135i needed wiper refills, on its aero style wipers. I generally love PIAA super silicone wipers/refills, and had a pair of long refills left over from other cars.

I had successfully refilled the VW's aero type wipers back in the day, and the PIAA refills fit just fine. The BMW wipers are different. These Valeo wipers have the aerodynamic fin feature as part of the squeegee, not part of the wiper itself.

To attempt to illustrate:



The main squeegee section is the same as any classic wiper, but on the OE BMW item, the squeegee has the fin on its back. I guess this is to cause downward force when wiping at speed.




The main ramification is that now the beam doesn't have the fin, only the ends.



Note how the wiper is now flat until the end section.

Ive not looked at many wipers of this type. How critical is it to have the fin/spoiler on it to force the wiper down to the glass? I'm not opposed to buying new blades in full, but I'd rather refill this way if I can...

Thanks!

Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593504
12/03/17 10:18 PM
12/03/17 10:18 PM
Joined: Mar 2015
Posts: 5,030
Virginia
bbhero Offline
bbhero  Offline
Joined: Mar 2015
Posts: 5,030
Virginia
My thought is that unless you plan on routinely going 85 mph plus it likely will be fine. I think as you stated the back fin comes more into play at rather high speed. Having said this.... In New Jersey on Interstate 95.... 85 is a cruising speed for a good number of people up that way smile


Nissan Altima 3.5 Coupe
Quaker State High Mileage 5w30 Purolator Boss 14610
"Treat your family like your friends and treat your friends like your family."
Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593583
12/04/17 12:10 AM
12/04/17 12:10 AM
Joined: Aug 2004
Posts: 19,989
CA
The Critic Offline
The Critic  Offline
Joined: Aug 2004
Posts: 19,989
CA
Test the wipers at highway speeds to see if you experience any chatter. If not, all is well.


2011 Toyota Prius - 173k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 131K - Mobil 1 EP HM 5W-30
Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593588
12/04/17 12:25 AM
12/04/17 12:25 AM
Joined: Feb 2013
Posts: 10,699
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,699
Phoenix, AZ
If you keep it under 160 in a rain storm, you should be good to go.


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: How important is the "aero" part of a beam wiper? [Re: The Critic] #4593662
12/04/17 06:36 AM
12/04/17 06:36 AM
Joined: Nov 2008
Posts: 3,157
Oshawa, Ontario Canada
JC1 Offline
JC1  Offline
Joined: Nov 2008
Posts: 3,157
Oshawa, Ontario Canada
Originally Posted By: The Critic
Test the wipers at highway speeds to see if you experience any chatter. If not, all is well.


+1.


2015 Grand Caravan SXT Plus 5w-20 PPPP/Fram Ultra Filter
1997 Honda Civic CX 5w-30 Shell Conventional/Fram Ultra Filter
Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593695
12/04/17 07:41 AM
12/04/17 07:41 AM
Joined: Sep 2010
Posts: 6,998
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 6,998
Texas
Where the rubber meets the glass driving in the rain yesterday I had one peel. It did not work well at all. They were Duralast and a year old just bought a single Trico and back on the road worked perfect

Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593768
12/04/17 10:07 AM
12/04/17 10:07 AM
Joined: Jan 2013
Posts: 1,842
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,842
Texas
Checking the wiper blades is part of our yearly state inspection . Seems that I am lucky to get more than 1 cycle out of new wiper blades .

I do not know if this is relevant , but we are not in a rainy climate .


Wyr
God bless
Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593770
12/04/17 10:10 AM
12/04/17 10:10 AM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
I just buy a new pair of OE wipers every spring. They can be found at reasonable prices.

I tried taking apart a stock wiper to maybe install a Honda refill. Looked like [censored] afterwards so gave up.

Last edited by mightymousetech; 12/04/17 10:12 AM.

Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593800
12/04/17 10:42 AM
12/04/17 10:42 AM
Joined: Jul 2012
Posts: 377
Michigan
khittner Offline
khittner  Offline
Joined: Jul 2012
Posts: 377
Michigan
I use wiper blades as a "box filler" when I'm buying other stuff from RockAuto. At $7-$9 each for Trico Neoforms (18"-26" for my fleet), it's not bad. They last about a year before the UV does enough damage to start them streaking. I didn't think "refills" were still available, particularly for the beam-style blades, and I wouldn't bother.

Re: How important is the "aero" part of a beam wiper? [Re: JHZR2] #4593827
12/04/17 11:31 AM
12/04/17 11:31 AM
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
I purchase a set of Michelins every year from Menards when they go on sale for $7.00+.

Re: How important is the "aero" part of a beam wiper? [Re: khittner] #4593833
12/04/17 11:40 AM
12/04/17 11:40 AM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
Originally Posted By: khittner
I use wiper blades as a "box filler" when I'm buying other stuff from RockAuto. At $7-$9 each for Trico Neoforms (18"-26" for my fleet), it's not bad. They last about a year before the UV does enough damage to start them streaking. I didn't think "refills" were still available, particularly for the beam-style blades, and I wouldn't bother.


Honda still uses refills for all their wipers. Wish every car company did this.

For the OP though, every aftermarket wiper I have seen for our 1ers looks like [censored] with a giant adapater to the wiper. I would just go OE.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: How important is the "aero" part of a beam wiper? [Re: mightymousetech] #4594088
12/04/17 03:52 PM
12/04/17 03:52 PM
Joined: Dec 2002
Posts: 42,085
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,085
New Jersey
Originally Posted By: mightymousetech
Originally Posted By: khittner
I use wiper blades as a "box filler" when I'm buying other stuff from RockAuto. At $7-$9 each for Trico Neoforms (18"-26" for my fleet), it's not bad. They last about a year before the UV does enough damage to start them streaking. I didn't think "refills" were still available, particularly for the beam-style blades, and I wouldn't bother.


Honda still uses refills for all their wipers. Wish every car company did this.

For the OP though, every aftermarket wiper I have seen for our 1ers looks like [censored] with a giant adapater to the wiper. I would just go OE.


Honda does, but both our Odyssey and accord have a custom shape to the non-squeegee rubber section. Can't refill Honda blades with PIAA squeegees as a result, for example.

The PIAA rubber I used to refill my BMW blades has the same profile, minus the fin, as the BMW blade.

PIAA blades just wipe so perfectly smooth I greatly prefer them.

No chatter even on dry glass.

Re: How important is the "aero" part of a beam wiper? [Re: mightymousetech] #4594370
12/04/17 08:42 PM
12/04/17 08:42 PM
Joined: Mar 2016
Posts: 1,413
Western S.C. since 1996
CR94 Offline
CR94  Offline
Joined: Mar 2016
Posts: 1,413
Western S.C. since 1996
Originally Posted By: mightymousetech
I just buy a new pair of OE wipers every spring. ...
I tried taking apart a stock wiper to maybe install a Honda refill. Looked like [censored] afterwards so gave up.
My OE aero Toyota blades are still OK after 4+ years. A couple of days ago I figured out how to replace the refills, which are about $10 apiece on-line for OE ones.

It doesn't seem long since we could by aftermarket refills for $2/pair at Wal-Mart or Kmart. Now they don't have them. For my Mazda I had to buy complete blades, take out the refill, install them in the original blades, and throw away the rest of the crummy aftermarket blade.

Last edited by CR94; 12/04/17 08:45 PM.

2011 Toyota Prius now at 92K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: How important is the "aero" part of a beam wiper? [Re: CR94] #4595151
12/05/17 04:09 PM
12/05/17 04:09 PM
Joined: Jan 2004
Posts: 4,155
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,155
California
Originally Posted By: CR94
Originally Posted By: mightymousetech
I just buy a new pair of OE wipers every spring. ...
I tried taking apart a stock wiper to maybe install a Honda refill. Looked like [censored] afterwards so gave up.
My OE aero Toyota blades are still OK after 4+ years. A couple of days ago I figured out how to replace the refills, which are about $10 apiece on-line for OE ones.

It doesn't seem long since we could by aftermarket refills for $2/pair at Wal-Mart or Kmart. Now they don't have them. For my Mazda I had to buy complete blades, take out the refill, install them in the original blades, and throw away the rest of the crummy aftermarket blade.

O'Reilly sells Trico refills but they are very hit or miss. They work OK on metal frame wipers but don't last a [censored] on OEM aero beam wipers, I had a set installed in a friend's Forester start to fail in the snow. He asked me for a non-OEM blade recommendation, I suggested Denso aero blades.

Nowadays I prefer Denso wipers on Japanese cars and OEM-series Bosch/Valeo on European cars. Denso's non-value blades do take OEM refills, with a small modification to the refill with a pair of dikes to cut through the
"notch" that OEM blades use to locate the metal spline. Denso OEM-replacement blades are made by NWB. I think OEM blades are good for a long time until there's slop in the frame.

Re: How important is the "aero" part of a beam wiper? [Re: nthach] #4596329
12/06/17 06:29 PM
12/06/17 06:29 PM
Joined: Mar 2016
Posts: 1,413
Western S.C. since 1996
CR94 Offline
CR94  Offline
Joined: Mar 2016
Posts: 1,413
Western S.C. since 1996
Originally Posted By: nthach
... I think OEM blades are good for a long time until there's slop in the frame.
Could be. The OEM blades of my '81 Mazda were still good after 33 years+ and over 600K miles, albeit with several refill replacements.

*Minus maybe a couple of years with short-lived aftermarket blades.


2011 Toyota Prius now at 92K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K

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