Author Topic: Wanted: New or rebuilt Warm Running Device (WRD)  (Read 240 times)

Kent Busley

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Wanted: New or rebuilt Warm Running Device (WRD)
« on: July 04, 2025, 22:31:34 »
Does anyone know where I can buy a new or rebuilt Warm Running Device?
1970 280SL
1987 560SL
2019 E450 Convertible
2025 AMG SL55

rwmastel

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Re: Wanted: New or rebuilt Warm Running Device (WRD)
« Reply #1 on: July 05, 2025, 01:01:49 »
https://www.sl113.org/forums/index.php?topic=39538.0

Did you see the thermostat for sale?

Or, do you just need the thermostat housing?
Rodd

Did you search the forum before asking?
2017 C43 AMG
2006 Wrangler Rubicon
1966 230SL auto "Italian"

Kent Busley

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Re: Wanted: New or rebuilt Warm Running Device (WRD)
« Reply #2 on: July 05, 2025, 16:21:47 »
Hi Rodd,

Thanks for the reply.  I did not see that.  Unfortunately, it appears that these have all been sold.

Kent
1970 280SL
1987 560SL
2019 E450 Convertible
2025 AMG SL55

Lori

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  • 1968 280SL (US)
Re: Wanted: New or rebuilt Warm Running Device (WRD)
« Reply #3 on: July 05, 2025, 16:53:52 »
Kent, what is wrong with your WRD? 
Since you have a 1970 280sl, that thermostat in Rodd's post is not for your car.

Usually issues can be resolved with:
New thermostat
New air filter
Shims under the WRD

You can search "warm running device" to find lots of threads about troubleshooting



Autohausaz has the best price for the thermostat.
https://www.autohausaz.com/pn/0012039575

Authentic classics has additional parts
https://www.authenticclassics.com/230SL-250SL-280SL-Convertible-113-Chassis-s/1.htm?searching=Y&sort=13&cat=1&search=Injection+pump&show=32&page=1
Lori
1968 280SL (US)

Kent Busley

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Re: Wanted: New or rebuilt Warm Running Device (WRD)
« Reply #4 on: July 05, 2025, 21:49:04 »
Thanks for the info, Lori.  Very helpful.

Problem is with cold and warm (not hot) starting.
1970 280SL
1987 560SL
2019 E450 Convertible
2025 AMG SL55

rwmastel

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Re: Wanted: New or rebuilt Warm Running Device (WRD)
« Reply #5 on: July 06, 2025, 02:57:58 »
Kent,

How much have you studied?  Scroll down on this page to Components -> Engine Starting Aids

Also to Smaller Components -> Warm Running Device

https://www.sl113.org/wiki/Engine/Start
Rodd

Did you search the forum before asking?
2017 C43 AMG
2006 Wrangler Rubicon
1966 230SL auto "Italian"

Kent Busley

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Re: Wanted: New or rebuilt Warm Running Device (WRD)
« Reply #6 on: July 06, 2025, 13:25:30 »
Thanks Rodd, looks like a great resource.  Much appreciated.
1970 280SL
1987 560SL
2019 E450 Convertible
2025 AMG SL55

 

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