M-Class (W166) Produced 2012-2015

Major Coolant leak and some other random oil leak ML250 2014

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Old Apr 19, 2018 | 08:38 AM
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Arrow Major Coolant leak and some other random oil leak ML250 2014

Topped up nearly 1.5L of coolant and tonight saw this. Not sure if this is from the pump or a pipe, looks like it's been going on for quite some time and has splattered everywhere. Nothing coming out of the bottom surprisingly. Out of warranty, if I take this to the private Merc service they are bound to have a field day, hopefully it's just the outlet pipe and can get the local mechanic to do it.



coolant leak. added 1.5L and still low.


not sure what system this leak is from but is relatively minor
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Old Apr 19, 2018 | 04:36 PM
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If it's my car, I'd clean up that entire area,make sure the coolant is up to the mark, drive for a day, let the engine cool down, and then I'd check all coolant hose fittings (coolant tank, thermostat connection, water pump hoses, etc) to identify the source of the leak.
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Old Apr 19, 2018 | 05:38 PM
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Old Apr 20, 2018 | 08:51 AM
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Originally Posted by pcy
If it's my car, I'd clean up that entire area,make sure the coolant is up to the mark, drive for a day, let the engine cool down, and then I'd check all coolant hose fittings (coolant tank, thermostat connection, water pump hoses, etc) to identify the source of the leak.
Too hard to access, in lower bottom. Wish I had one of those commercial car lifts. Taking it to the 3rd party merc dealer monday. Called mercedes as out of warranty going to be full retail.
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