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Coolant leak, odd spot.

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Old 06-23-2017, 09:06 PM
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2005 CLK500
Coolant leak, odd spot.

This has a pinhole leak that directly hits the alternator belt, causing loss of power steering and battery check engine lights. I have tried to find it on several parts catalogs, but with no luck. It is a rubber cap, held on with a hose clamp. It is about 1/2" diameter. Any insight as to where I could get a replacement?

Coolant leak, odd spot.-20170623_194005-20copy.jpg
Coolant leak, odd spot.-20170623_193959-20copy.jpg
Old 06-23-2017, 10:33 PM
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I'm not sure, but I think that might be a return connection for the heated washer fluid reservoir, which may be an option you do not have. I can't find the part, but it should be easy enough to find a suitable cap at an auto parts store.
Old 06-23-2017, 10:49 PM
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I kinda figured it was an air bleed point. But I need to find a cap of some sort, and none of the online sources list it. I will check Autozone tomorrow.

Thanks,
Old 06-23-2017, 11:02 PM
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get a short hose of the proper diameter and a stainless steel or aluminum bolt that fits it. Clamp the bolt in place, then the hose to the block.
Old 06-24-2017, 03:10 PM
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Found these at AutoZone, $5 for the pair.

Coolant leak, odd spot.-20170624_103421.jpg
Coolant leak, odd spot.-20170624_103426.jpg
Coolant leak, odd spot.-20170624_103505.jpg
Old 06-24-2017, 03:29 PM
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2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
Nicely done

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