Coolant replacement schedule
Thread Starter
Member
Joined: Mar 2002
Posts: 171
Likes: 14
From: VA
14 ML350 4MATIC
Coolant replacement schedule
I searched for the manual, and forum, but didn't have much luck.
My dealer keep asking me to replace the coolant.
How often would you replace your coolant in your ML350 (gas). I have currently 55,000 miles and it is 2014.
Thanks in advanced,
My dealer keep asking me to replace the coolant.
How often would you replace your coolant in your ML350 (gas). I have currently 55,000 miles and it is 2014.
Thanks in advanced,
Out Of Control!!
Joined: Sep 2018
Posts: 14,678
Likes: 4,578
From: unbegrenzt
2017 GLE350 4MATIC
Dig up the maintenance schedule from M-B. I think it is not listed. Therefore never “required”. At 100k miles imo it is a nice to do.
55k miles is the dealer trying to put his hand in your wallet.
55k miles is the dealer trying to put his hand in your wallet.
MBWorld Fanatic!
Joined: Nov 2012
Posts: 6,130
Likes: 1,117
A gaggle of MB's
Coolant replacement is a function of "time" - than mileage. MB coolant is pH neutral - and over time thru exposure to the mixed metals in the engine loses neutrality - and that's where internal corrosion starts.
In markets like Australia and Middle East coolant change is "promoted" to be annual - however in both those market areas dealers use "tap/hose" water for coolant mix which is alkaline from the start - which leads to "common" premature thermostat/radiator failure.
By-and-large US tap/hose water is ph neutral - coolant replacement at 5yrs - sure - frankly I have mine done every two years which for me is about 20K miles - but that's me.
In markets like Australia and Middle East coolant change is "promoted" to be annual - however in both those market areas dealers use "tap/hose" water for coolant mix which is alkaline from the start - which leads to "common" premature thermostat/radiator failure.
By-and-large US tap/hose water is ph neutral - coolant replacement at 5yrs - sure - frankly I have mine done every two years which for me is about 20K miles - but that's me.
