CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

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Old Jan 24, 2013 | 03:24 PM
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2004 CLK320
Cold Weather

In winter, how long does it take for the heat to come out?

It has been around -20c to -25c in Toronto in the last few days. When I start my car in the morning, I would drive slowly once the RPM gauge drops. I noticed that warm air would come out after about 15-20 minutes. Is this normal?

My thermostats was changed in Oct-2011 and I just changed the serpentine belt and some pulleys (Tensioner pulley, Idler pulley, crankshaft pulley) last weekend.

Last edited by mis3; Jan 24, 2013 at 03:28 PM.
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Old Jan 25, 2013 | 12:20 AM
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It doesn't get that cold here, but both our C240 and CLK550 warm up quickly - I have warm (warmer than ambient) air in the system within about 5 minutes of starting the engine. After 15 minutes, it would be "hot".
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Old Jan 25, 2013 | 10:28 AM
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2004 CLK320
Maybe -20C is too cold that the car needs more time to warm up.
It actually went down to -25c overnight in the last few days. No windchill because the car was kept inside my garage,
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Old Jan 28, 2013 | 04:35 AM
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From: Prospect (Louisville), KY
'08 CLK 550 Cabriolet, '15 ML 350
Have your dealer check the thermostat; valve could be stuck open.
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Old Jan 28, 2013 | 11:04 AM
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CLK 550
I'm living in Montréal and we have -30. The hot air start blowing when the engine temperature is at 1/4 on the gauge. The engine rev little higher one speed higher to get this temperature faster.

I hope you understand my english.
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