Coolant Consumption?
Thread Starter
MBWorld Fanatic!
Joined: Apr 2008
Posts: 1,399
Likes: 202
From: Bay Area, California
2015 E63s AMG, 2020 GLC 43 AMG
Coolant Consumption?
Hey Guys,
I seem to be getting a dash warning to add coolant about every 2 to 3 months. It seems to only need a few ounces and I cannot find any leaks of any kind. Everything looks shiny clean. I don't see any steam or anything ever either.
I don't recall either of my prior AMG's needing periodic coolant added so I'm curious if this is normal. I know that the tunes can cause a bit higher oil consumption, but I hadn't heard of any coolant consumption.
Anyway, any of you guys needing to add a bit of coolant every few months?
Thanks
I seem to be getting a dash warning to add coolant about every 2 to 3 months. It seems to only need a few ounces and I cannot find any leaks of any kind. Everything looks shiny clean. I don't see any steam or anything ever either.
I don't recall either of my prior AMG's needing periodic coolant added so I'm curious if this is normal. I know that the tunes can cause a bit higher oil consumption, but I hadn't heard of any coolant consumption.
Anyway, any of you guys needing to add a bit of coolant every few months?
Thanks
Junior Member
Joined: Nov 2016
Posts: 56
Likes: 7
2014 ML63s
Hey Guys,
I seem to be getting a dash warning to add coolant about every 2 to 3 months. It seems to only need a few ounces and I cannot find any leaks of any kind. Everything looks shiny clean. I don't see any steam or anything ever either.
I don't recall either of my prior AMG's needing periodic coolant added so I'm curious if this is normal. I know that the tunes can cause a bit higher oil consumption, but I hadn't heard of any coolant consumption.
Anyway, any of you guys needing to add a bit of coolant every few months?
Thanks
I seem to be getting a dash warning to add coolant about every 2 to 3 months. It seems to only need a few ounces and I cannot find any leaks of any kind. Everything looks shiny clean. I don't see any steam or anything ever either.
I don't recall either of my prior AMG's needing periodic coolant added so I'm curious if this is normal. I know that the tunes can cause a bit higher oil consumption, but I hadn't heard of any coolant consumption.
Anyway, any of you guys needing to add a bit of coolant every few months?
Thanks
EDIT: Meant M156 and see I am in the wrong forum :P
Last edited by mdotk; Jul 10, 2019 at 07:24 PM.
Member
Joined: Jan 2017
Posts: 84
Likes: 25
From: Canberra, ACT. Australia.
2012 E63 AMG Estate
The head bolt issue was specific to early model M156 motors. I haven't heard or read of any such issues with the M157? That said, I've put 55,000kms in 2 and a half year on my M157 and haven't added a drop of coolant in that time. Something doesn't sound right there.
Junior Member
Joined: Nov 2016
Posts: 56
Likes: 7
2014 ML63s
The head bolt issue was specific to early model M156 motors. I haven't heard or read of any such issues with the M157? That said, I've put 55,000kms in 2 and a half year on my M157 and haven't added a drop of coolant in that time. Something doesn't sound right there.
Super Member
Joined: Apr 2018
Posts: 613
Likes: 213
From: Boston area
2016 E63 Wagon
Adding coolant is never normal. Even with tune.
It can really only go three ways:
1. Evaporation (if you have a small "air leak" (not liquid but "steam" - air with higher moisture content that air outside - leaking). You do live in a very dry climate.
2. Leak. Look for the pinkish residue. If you are truly starting to worry - add UV dye to coolant and use light to trace Has helped me in the past to find small leaks.
3. Going into cylinder and out tail pipe as steam. Means you have a real problem - minimum gasket.
in your case, with such limited consumption, almost brand new motor and warranty, I say keep on driving until problem shows itself more materially.
That said - since you DID have a new motor installed, I feel it's about 90% that one of the clamps somewhere is not 100% and you have a tiny leak.... Look for pink. Or go UV route.
It can really only go three ways:
1. Evaporation (if you have a small "air leak" (not liquid but "steam" - air with higher moisture content that air outside - leaking). You do live in a very dry climate.
2. Leak. Look for the pinkish residue. If you are truly starting to worry - add UV dye to coolant and use light to trace Has helped me in the past to find small leaks.
3. Going into cylinder and out tail pipe as steam. Means you have a real problem - minimum gasket.
in your case, with such limited consumption, almost brand new motor and warranty, I say keep on driving until problem shows itself more materially.
That said - since you DID have a new motor installed, I feel it's about 90% that one of the clamps somewhere is not 100% and you have a tiny leak.... Look for pink. Or go UV route.
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Thread Starter
MBWorld Fanatic!
Joined: Apr 2008
Posts: 1,399
Likes: 202
From: Bay Area, California
2015 E63s AMG, 2020 GLC 43 AMG
Adding coolant is never normal. Even with tune.
It can really only go three ways:
1. Evaporation (if you have a small "air leak" (not liquid but "steam" - air with higher moisture content that air outside - leaking). You do live in a very dry climate.
2. Leak. Look for the pinkish residue. If you are truly starting to worry - add UV dye to coolant and use light to trace Has helped me in the past to find small leaks.
3. Going into cylinder and out tail pipe as steam. Means you have a real problem - minimum gasket.
in your case, with such limited consumption, almost brand new motor and warranty, I say keep on driving until problem shows itself more materially.
That said - since you DID have a new motor installed, I feel it's about 90% that one of the clamps somewhere is not 100% and you have a tiny leak.... Look for pink. Or go UV route.
It can really only go three ways:
1. Evaporation (if you have a small "air leak" (not liquid but "steam" - air with higher moisture content that air outside - leaking). You do live in a very dry climate.
2. Leak. Look for the pinkish residue. If you are truly starting to worry - add UV dye to coolant and use light to trace Has helped me in the past to find small leaks.
3. Going into cylinder and out tail pipe as steam. Means you have a real problem - minimum gasket.
in your case, with such limited consumption, almost brand new motor and warranty, I say keep on driving until problem shows itself more materially.
That said - since you DID have a new motor installed, I feel it's about 90% that one of the clamps somewhere is not 100% and you have a tiny leak.... Look for pink. Or go UV route.
Thanks everybody for your replies.
