How do I know my car has a cracked head? on 2002 Mercedes-Benz C230

I had the head gasket changed, as well as the thermostat. There has been no definitive test as to why I am losing coolant. The dealer had my car for a week, and they tell me "it must be a cracked head. We can't really determine for sure until we open up the head". I don't understand the answer, as they should have seen this when they changed the head gasket? Pressure tests show nothing. I am losing coolant still.

by in South Plainfield, NJ on April 24, 2013
2 answers 3 comments
ANSWER by on April 24, 2013
the head should have been sent out and check for cracks and warpage
COMMENT by on April 25, 2013
Thanks for the reply..when I first brought the car into the dealer- they used a scope to determine that the head gasket was cracked. I asked if the heads were ok, and they said yes. Now I am told it isn't. Does this sound like an irresponsible repair? I just want my car fixed.
ANSWER by on April 25, 2013
This should have been checked before replacing the head gasket by either the repair shop or by sending the cylinder head to a machine shop. standard proceedure when replacing a head gasket.
COMMENT by on April 25, 2013
Wow...I thought so. This is a major Mercedes Benz dealer in the area. Can you suggest what I should do?
COMMENT by on April 25, 2013
Not very professional of them,I would try to go after them legally but first i would try calling mercedes benz usa corporate office, they might go after the dealership. good luck. Dave F&M Tire & Auto Service

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