S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

07 S550 Radiator Replacement?

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Old Jun 26, 2014 | 04:52 PM
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AstonLiyanarchi's Avatar
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2007 Mercedes S550
07 S550 Radiator Replacement?

Ive had my 07 S550 for about a year now and everything's been working perfect. I just had my schedule C Service done at the local dealer and when I got the car back I noticed that the coolant light was on. I picked up the car after hours so I couldn't talk to anyone but it just seemed like the coolant was a little low so I put some distilled water in it. A week or so goes by and the light comes on again and I notice a puddle under the front pass side.

All of the hoses seem to be fine and it seems like the radiator is leaking somewhere near the bottom.

Has anyone replaced the radiator on their s550? My car only has 39k miles and it seems early to have a radiator failure
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Old Jun 26, 2014 | 07:14 PM
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From: Southern California
2007 CL550
Are you sure you are not seeing condensate from your air conditioner?
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Old Jun 26, 2014 | 08:11 PM
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AstonLiyanarchi's Avatar
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2007 Mercedes S550
Yea. I see where the condensation is coming from. I can also smell that it's coolant. If I fill the tank it will drain in about 3 days with the car just sitting there
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Old Dec 11, 2014 | 07:48 AM
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09 S550, 08 Charger Srt8, 63 Ford Galaxie 500, 07 GSXR1000
I have a small leak in my 08 s550. It is coming from the driver side top of the radiator where the intake tube goes thru. Anyone have instructions on how to replace the radiator?
I found one rockauto for $220
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Old Dec 11, 2014 | 10:36 AM
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From: North Scottsdale, AZ
'71 Pinto
Originally Posted by AstonLiyanarchi
I just had my schedule C Service done at the local dealer and when I got the car back I noticed that the coolant light was on. I picked up the car after hours so I couldn't talk to anyone but it just seemed like the coolant was a little low so I put some distilled water in it. A week or so goes by and the light comes on again and I notice a puddle under the front pass side. My car only has 39k miles and it seems early to have a radiator failure
Take it back and have dealer revisit best case they repair it at no cost, worst case scenario they claim it is not their fault at least you will have an accurate handle on what needs to be repaired/replaced.
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