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c250d
Date registered: Dec 1899
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| c class small water leak
I have a 96 c class 2.5 diesel,its a non turbo 5 cyl 20v, i guess its just a 3.0 24v with a cylinder lopped off really, problem is i have a very small water leak. It takes around 6 tankfulls of fuel to lose a litre of water wich is no big deal but i wondered wether there were any common problems with these engine types,ive checked the engine oil and its never shown even a drop of water or milky residue. Hope its not a cracked head or anything pricey, will get it up to temp the weekend and stick my head under the radiator the weekend and look for trouble but i fear until it gets any worse im on a loser to find it or has anyone better idea? |
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BenzDieselTuner
Date registered: Dec 1899
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| Re: c class small water leak
it just occurred to me that u may be experiencing a problem i had.......maybe your cap for the coolant tank's pressure relief valve spring is worn out, and this is causing it to leak steam constantly, when under pressure, thus creating your gradual water loss...... |
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skyline7
Date registered: Dec 1899
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| Re: c class small water leak
check out the tank cap a worn out one can cause the steam to leak.. |
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cootofrito
Date registered: Dec 1899
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| Re: c class small water leak
Cap and radiator side seal leaks are all common as well as water pump seal leaks. You need to pressure test the system for a few hours..when it is cold! |
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c250d
Date registered: Dec 1899
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| RE: c class small water leak
Oh no guys i sold my merc,difficult decision but with the slight water loss and not great fuel economy i couldnt resist a 50mpg hdi citroen xantia witch has the torque of a tractor,trouble is i cant get mercs outa my head and have been looking for a 300d for a while,long time no visit and heres hi to you all. |
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louwdj
Veteran
Date registered: Feb 2007
Location: Johannesburg South Africa
Vehicle(s): 89 W460 230GE 5 door; 82 W123 230e; 99 W210 E240
Posts: 139
| RE: c class small water leak
I have a '95 C220 which also developed a water leak. It turned out to be a leaking head gasket. It leaked near the firewall and I could eventually trace it from white anti-freeze streaks underneath the gearbox. Turned out to be quite an expensive gasket replacement ~US$2,000. The wiring harness had gone brittle and had to be replaced ($1,000). Car had done close on 200,000kms but engine insides still absolutely spottless - no detectable wear. Have since clocked another 30,000kms, trouble free.
David (Johanesburg, South Africa) |
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