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  #1  
Old 09-29-2010, 10:18 AM
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Dan K
 
Join Date: Jan 2009
Posts: 11
intermittent wipers in W126 cars?

Did any of the W126 cars come with intermittent wipers? My '85 300SD has just the one 'speed' (AFAIK) and I was hoping there was a way to change that.

My old '85 Golf came from the factory with a fixed intermittent duration, but by swapping in the relay from a newer car I was able to add the variable delay function. Any chance there's anything similar for my Benz?

TIA,

Dan

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1985 300SD w/328K miles
1997 E320 251K
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  #2  
Old 09-29-2010, 12:02 PM
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Cruisin on Electric Ave.
 
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Location: La Conner, WA
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It's easier to retrofit a programmable delay relay into a Gen1 (IE 85 and before) W126. The Gen2 cars' wiper relay is built into a big relay unit which also handles the turn signals and rear defroster.

Perhaps one of these days I'll crack it open and retrofit a VW 99 wiper relay inside...

-J
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.
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  #3  
Old 09-29-2010, 12:52 PM
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I LOVE BRUNETTES
 
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Thumbs up

I have multiple speeds on my '85 SD
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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

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  #4  
Old 09-29-2010, 01:42 PM
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Cruisin on Electric Ave.
 
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Location: La Conner, WA
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Yes, you have a fixed delay, low, and high. Just like a VW, because they're wired the same way. VW changed the wiper relay in the early 90s on the upper range cars so you could program the delay interval. Turn it to delay, back off, wait until you need the glass cleared, turn it back to delay. The wipers now wipe at that interval.

-J
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.
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  #5  
Old 09-29-2010, 02:26 PM
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smoke gets in your eyes
 
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Location: Eastern TN
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Isn't there someone who sells an add-on variable intermittent module for 80s MBs?

Sixto
87 300D
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  #6  
Old 09-29-2010, 02:46 PM
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Cruisin on Electric Ave.
 
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Yes, it works the same as the VW unit, and only works on the gen1 cars.
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  #7  
Old 09-29-2010, 02:49 PM
One step at a time
 
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Location: Burleson, TX
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Yes, there was a forum member who made this, along with tach amps.

He has a website:\

http://www.mbelectronicupgrades.com/Products.html
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1985 300SD 322,000
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  #8  
Old 09-29-2010, 06:19 PM
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Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
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Quote:
Originally Posted by compu_85 View Post
Yes, it works the same as the VW unit, and only works on the gen1 cars.
Interesting, is the relay plug and play in our MB's? Or does it require plug modifications? That'd be a nice feature to have....
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'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
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  #9  
Old 09-29-2010, 06:29 PM
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Cruisin on Electric Ave.
 
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VW's have spade plugs, MB's have round plugs. You'd need to make an adapter. What does the MB delay realy look like? I bet you might be able to stuff the guts of the VW relay into the MB case for a nice stealth fitment.

-J
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.
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  #10  
Old 09-29-2010, 06:43 PM
Registered User
 
Join Date: Apr 2005
Location: Austin, TX
Posts: 631
Quote:
Originally Posted by pawoSD View Post
Interesting, is the relay plug and play in our MB's? Or does it require plug modifications? That'd be a nice feature to have....
Plug and play. No mods or wiring harness changes. Don't like it, slap a stock relay back in and you're back to stock.
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'82 300D Petrol B-G Metallic
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  #11  
Old 09-29-2010, 10:50 PM
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Quote:
Originally Posted by 4thesporty View Post
Yes, there was a forum member who made this, along with tach amps.

He has a website:\

http://www.mbelectronicupgrades.com/Products.html

Good pricing too. Even with the core it comes out cheaper than my 03 Toyota's recent relay replacement.
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86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
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  #12  
Old 09-29-2010, 11:18 PM
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Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,438
Hmm....I will need to find one of these relays.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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