Author Topic: 230SL Air Conditioning  (Read 1762 times)

Harry

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230SL Air Conditioning
« on: August 01, 2022, 17:00:59 »
I just got my A/C working again (and for the first time) and I had a question regarding the addition of an electric fan.  Has anyone on the forum replaced their belt driven fan with an electric?  This would increase the airflow through the condenser/radiator, especially at low speeds, which would help engine cooling and A/C performance.

Any experience and/or recommendations?

Thanks,
Harry
Harry Bailey
Knoxville, TN
1966 230SL
Automatic

Norm

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Re: 230SL Air Conditioning
« Reply #1 on: August 01, 2022, 19:30:14 »
I added an auxiliary fan in front of the radiator that comes on with the A/C, I can also manually switch on from a switch on he dash and it has a thermo sensor that will switch it on at 200 degrees F.

I also added a fan shroud from a 250 SL and 6 blade metal fan.  After these additions I have never seen the car over 85 degrees C, even driving on country roads at outside temperature over 100 degrees F.

I don't use the A/C very often but when I do I am super glad I have it! ;D
Norm
1966 230SL 162H Blue-Grey
1994 Acura NSX Formula Red
2024 Acura RDX A-Spec, White Pearl
2016 Mercedes S63 AMG Coupe Obsidian Black
2011 Harley Davidson Super Glide Light / Dark Root Beer

Harry

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Re: 230SL Air Conditioning
« Reply #2 on: August 02, 2022, 01:05:17 »
Thanks Norm.  I’m not sure I have room on the front.  What kind/brand did you use?
Harry Bailey
Knoxville, TN
1966 230SL
Automatic

Norm

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Re: 230SL Air Conditioning
« Reply #3 on: August 02, 2022, 02:00:31 »
Sorry Harry.  It's a slim 12" frame but it was installed over 10 years ago.  I have no idea what brand.

If you have a good A/C shop near by maybe they could take a look at the space you have and make a suggestion.

Norm
Norm
1966 230SL 162H Blue-Grey
1994 Acura NSX Formula Red
2024 Acura RDX A-Spec, White Pearl
2016 Mercedes S63 AMG Coupe Obsidian Black
2011 Harley Davidson Super Glide Light / Dark Root Beer

Harry

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Re: 230SL Air Conditioning
« Reply #4 on: August 02, 2022, 19:35:10 »
Thanks Norm.
Harry Bailey
Knoxville, TN
1966 230SL
Automatic

Tomnistuff

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Re: 230SL Air Conditioning
« Reply #5 on: August 03, 2022, 18:24:06 »
Hello Harry,
I too added an auxiliary electric fan between my condenser and grill.  I added a SPAL Model
VA11-AP7-/C-57S  12V fan turned on by a relay triggered by the AC clutch.
If you search SPAL VA11-AP7-/C-57S , you will get SPAL's web site and then search again the model number for all the details.  I couldn't find the price on their site and don't remember what I paid.  I bought mine from the mobile AC guy who came to my house to charge my AC.  I probably paid too much but they are in the range of $100.00, I think.
The only problem I had installing mine was removing the grill and black grill screens to avoid removing the hood.
In the end, I removed the hood anyway to provide easier access to put the grill screen screws back.
It works great and my temperature also stays at about 80 or 81 degrees C even on a hot day here in Quebec.
Tom Kizer
Apparently late 1966 230SL 4-spd manual (Italian Version)
Owned since 1987 and wrapping up a full rotisserie restoration/modernization.
Was: Papyrus White 717G with Turquoise MBtex 112 and Kinderseat
Is: Dark Blue 332G with Dark Blue Leather (5300, I think)

Harry

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Re: 230SL Air Conditioning
« Reply #6 on: August 03, 2022, 21:38:38 »
Thanks Tom!
Harry Bailey
Knoxville, TN
1966 230SL
Automatic