Low Temp Heat Exchanger
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2016 S550
Low Temp Heat Exchanger
Took my car to the dealer to look at a few things. They said that when they pulled the off the undercover under the engine they found pink coolant all over the place. Checked the lines and fittings and said none were leaking so they want to replace the low temperature heat exchanger. They checked and said that this is NOT covered by CPO warranty. They said they pressure tested the system for 45 min and it held pressure so they think the leak is coming from the low temp heat exchanger.
Any thoughts on how big of an issue this is and if it should or should not be covered under CPO? I wasn't having any issues with the car at all. I am considering not doing anything and taking it to an independent to look at this an get a second opinion.
Any help would be appreciated.
Thanks
Any thoughts on how big of an issue this is and if it should or should not be covered under CPO? I wasn't having any issues with the car at all. I am considering not doing anything and taking it to an independent to look at this an get a second opinion.
Any help would be appreciated.
Thanks
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2019 S560, 2015 Honda Civic Hybrid
The low temp circuit cools intake air coming out of the turbochargers. There's a device called an intercooler where the heated & compressed air gives up its heat to coolant traveling in the low temp system. It sits in the "V" of the engine, right beneath the small reservoir for the low temp system.
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2020 S560, 2014 SLK55 (Prev. 2016 S65, 2013 SLK350, 2008 CLS63, 2006 E350, 2006 CLS500, 2005 C230K)
As discussed above this should be covered by CPO, but honestly they are also likely wrong.
The low temperature circuit is about 1L, any leak means the system would be very dry.
I would suggest going to another dealer, definetly don't pay for a new radiator yet.
The low temperature circuit is about 1L, any leak means the system would be very dry.
I would suggest going to another dealer, definetly don't pay for a new radiator yet.
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For what's its worth I tried to upload a video of what the tech said is the issue. Sounds like a bit of guesswork on his part. Maybe that is why they are saying this isnt covered?
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2019 S63 4Matic+, 2018 E400 Cabrio, wardens car.
If it is a radiator that is leaking out around the aluminum fins then most dealers will say it is not covered because this is typically the result of a rock or debris hitting the radiator at speed and causing the damage. Ironically if it is bad enough your insurance would cover this as a collision depending on your coverage.
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From: Phoenix
222 S-65
Soooo the point of the video is to play show and tell about your car. Where is all this coolant that was all over the bottom of the engine and in the plastic under the engine? Did the tech wash it all away (prior to show and tell) to better figure out where it is coming from? Where the point of the video is to show you how awful things are you’d think this would be in the video. Perhaps the tech needs help with cinematography.
If it is the heat exchanger that failed and it is due to a rock hitting it (I would not be surprised) you are out a comprehensive deductible getting it fixed; though you may get into fisticuffs with insurance as they think it should be replaced with used or (crap) aftermarket parts (assuming such an animal is available in the aftermarket).
If it is the heat exchanger that failed and it is due to a rock hitting it (I would not be surprised) you are out a comprehensive deductible getting it fixed; though you may get into fisticuffs with insurance as they think it should be replaced with used or (crap) aftermarket parts (assuming such an animal is available in the aftermarket).
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2020 S560, 2014 SLK55 (Prev. 2016 S65, 2013 SLK350, 2008 CLS63, 2006 E350, 2006 CLS500, 2005 C230K)
The AC Condesenser is in front of the low temp radiator so unlikely they can blame a rock.
Most likely leak is from main circuit, normal procedure would be to clean up and do a road test.
Most likely leak is from main circuit, normal procedure would be to clean up and do a road test.
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Great plan Mercedes.... put a heating element in front of the heat exchanger for charge cooling! This is a factor for me living where I see temps up to 120 in the summer. She pulls boost with higher charge temperature.
Rocks manage to get to everything but the radiator behind all the layers of the stack. It happens. Radiators also like to leak from a seam in the moulded plastic to feed the intake a diet of coolant. That was fun.
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2016 S550
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As an update, the dealer said they were "Suprised" that the low temp circuit cooler wasn't covered under CPO.
I asked for documentation of what was submitted and the response from Mercedes and the service manager at the dealer said all they do is put the part number into the Mercedes system and Mercedes tells them whether or not it is covered. Does this sound right?
They encouraged me to submit a goodwill assistance claim to MBAUSA, which I did. Do people have any luck with doing this?
They quoted me $1900 to replace the low temp radiator.
I asked for documentation of what was submitted and the response from Mercedes and the service manager at the dealer said all they do is put the part number into the Mercedes system and Mercedes tells them whether or not it is covered. Does this sound right?
They encouraged me to submit a goodwill assistance claim to MBAUSA, which I did. Do people have any luck with doing this?
They quoted me $1900 to replace the low temp radiator.
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