Author Topic: 280SL Supplementary Cooling Water Bypass Kit Wanted  (Read 4672 times)

GM

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280SL Supplementary Cooling Water Bypass Kit Wanted
« on: September 17, 2019, 00:33:10 »
Looking for a MBZ Supplementary Cooling Water Bypass Kit (see Retrofit Cooling Modification in Tech Manual) for '71 280SL, that connects the rear of the cylinder head with the suction side of the water pump. See attached photo.
This part was described as part of the MBZ Service Bulletin #116, file group 20, dated October 1970 - Subject: Supplementary By-Pass Cooling. Water Line Installation to Prevent Overheating / 6 Cylinder Fuel Injected Engines (1970) Air Conditioning (which I'd also like to get a copy of). Thanks! Gary
Gary
1971 280SL - Sold
(98 from the end of production)
DB180 Silver Gray Metallic
Black MB Tex

doitwright

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #1 on: September 19, 2019, 04:46:22 »
If you can’t find an OEM, Bud’s Benz sells their version of the same.
Frank Koronkiewicz
Willowbrook, Illinois

1970 280SL Originally Light Ivory - Now Anthracite Gray Metallic

m300cab

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #2 on: September 20, 2019, 13:16:00 »
buds has it for $325
i have an original set up
i'm willing to sell for $250
Michael Parlato

teahead

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1970 280SL auto, AC - aka "Edelweiss"

Cees Klumper

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #4 on: September 20, 2019, 23:50:35 »
It really baffles me why Mercedes makes buying their parts so difficult. Even the classic center website offers no way to order parts in a user-friendly way, the way any other successful commercial retailer does. It directs you to some 'epc parts catalog' that you have to pay a subscription for, I mean come on. No wonder alternative sellers do relatively well. It's actually not so different for BMW or Volvo here in the US, just a nightmare to try and figure out how you can buy what you need from the dealer, so I end up buying most parts, including original manufacturer's, from retailers like FCP Euro.
Cees Klumper
1969 Mercedes 280 SL automatic
1968 Ford Mustang 302 V8
1961 Alfa Romeo Giulietta Sprint Coupe 1600
1962 FIAT 1500S OSCA convertible
1972 Lancia Fulvia Coupe 1.3
1983 Porsche 944 2.5
1990 Ford Bronco II

ja17

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #5 on: October 01, 2019, 03:07:03 »
I like to use this website to look up parts and get the correct MB part numbers;   

https://7zap.com/en/

Click on "Catalogs" , then click on the Mercedes Star, next click on your model number etc. Choose your category. When the parts diagrams come up, click on the part you need and the part number will be visible on the left with brief description.

Next go to this website:  https://www.mbpartsworld.com/  Don't bother to "select vehicle".  Just plug the Mb part number into the search box on the upper right . If available, list price of the part will come up. I believe you can order parts from this site, discounted from list price.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

doitwright

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #6 on: October 01, 2019, 21:29:11 »
I have used Joe’s method with other parts sites. There are several. I record their price (anywhere from 25 to 30 percent off list) send it to Tom at the CC and he matches it. Provided he has it in stock which is usually the case. Tom is also on the ball with any part number changes.
Frank Koronkiewicz
Willowbrook, Illinois

1970 280SL Originally Light Ivory - Now Anthracite Gray Metallic

GM

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #7 on: October 04, 2019, 14:50:54 »
Thanks, Joe. Excellent help for general part lookup - thanks!
For this part I've been everywhere from the Classic Center to Stuttgart, with no evidence of the part anywhere. Fortunately, the fine members of this forum have been helpful.
Gary
« Last Edit: October 04, 2019, 15:03:51 by GM »
Gary
1971 280SL - Sold
(98 from the end of production)
DB180 Silver Gray Metallic
Black MB Tex

GM

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #8 on: October 04, 2019, 15:05:51 »
Thanks, Michael. Since getting the car and having all the fluids replaced, as well as a new fan clutch and 9-bladed fan, I'll see if I still need it next summer. Heading into fall now, I should be ok for the time being, but I'll keep you in mind next year.
Gary
1971 280SL - Sold
(98 from the end of production)
DB180 Silver Gray Metallic
Black MB Tex

GM

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Re: 280SL Supplementary Cooling Water Bypass Kit Wanted
« Reply #9 on: October 04, 2019, 15:06:45 »
Thanks, Frank!
Gary
1971 280SL - Sold
(98 from the end of production)
DB180 Silver Gray Metallic
Black MB Tex