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PointedThree :  Vans, Trucks, SUVs and Other Forums : W163 M-Class : ML 320 2002 Coolant leak

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ML 320 2002 Coolant leak
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Posted 11/27/2017 9:16 PM
zeng
New user


Date registered: Oct 2011
Location: Canberra,Australia
Vehicle(s): G Wagen 300GD,ML320
Posts: 3

ML 320 2002 Coolant leak

Hi All Hail from Oz,
I have a 2002 ML320 and its just sprung a green leak!
Let me run through some observations: It doesn't leak while the engine is running
It only leaks after I switch off engine.
It only leaks a set amount ....about 300mls ( a half Pint)
There is no oil present in the coolant.
There is no coolant present in engine oil.
While the engine is running the exhaust colour is normal, not white.
While the engine is running the cooling system pressurises,so not head gasket.
Replaced top and bottom radiator hoses.
Facing the car the leak appears near centre front approx. where the bottom hose enters radiator which made me originally assume
it was a perished hose.
After a weekend of changing hoses blah blah blah Im led to believe its the waterpump housing where the leak originates.
Does this sound like a possibility?
Allan
#237769
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Author
Posted 11/28/2017 6:24 AM
zeng
New user


Date registered: Oct 2011
Location: Canberra,Australia
Vehicle(s): G Wagen 300GD,ML320
Posts: 3

Re: ML 320 2002 Coolant leak

Hi Again,
Just a quick follow up on my very recent post;
about an hour later my serpentine belt wrapped itself
around the alternator.
#237772 - in reply to #237769
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Author
Posted 11/28/2017 11:39 PM
Otiswesty
Administrator




Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3013
2000
Re: ML 320 2002 Coolant leak

Sounds like your water pump was seized
#237779 - in reply to #237772
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