CL-Class (W216) 2007-Present: CL 500, CL 600

coolant leak in 2008 Cl550

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Old 09-25-2018, 12:11 PM
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2008 CL 550
coolant leak in 2008 Cl550

does anyone know what would cause the coolant leak outta the car completely? ive had no issues with the vehicle and all of a sudden the coolant fluid is low, i then top it off and by the next evening its saying the samething and the coolant tank is empty again. Any insight would be appreciated
Old 10-02-2018, 11:18 PM
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Cl550
They all do it you have a hairline crack on the radiator it’s about 150 to buy a new one
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Titan1969 (11-30-2019)
Old 11-08-2019, 10:08 PM
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2019 C43 Coupe, 2017 GLE63, 2007 CL600, 1985 SEC560, 2015 FIAT 500,
I know this is an old post but recently I had the same issue. My local MB garage said the o-rings for the transmission tubes were bad. Well, lo and behold, I drove the car into Chicago and when I came out to the parking garage, I had a large puddle of coolant. The radiator had a crack between the inlet and outlet hoses. It was $2300 to repair at MB of Naperville.
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Titan1969 (11-30-2019)
Old 11-30-2019, 10:04 AM
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Originally Posted by Bill Baird
I know this is an old post but recently I had the same issue. My local MB garage said the o-rings for the transmission tubes were bad. Well, lo and behold, I drove the car into Chicago and when I came out to the parking garage, I had a large puddle of coolant. The radiator had a crack between the inlet and outlet hoses. It was $2300 to repair at MB of Naperville.
same here, 07 CL600 91K cracked rad. Cost $1100 local indy repair shop.

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