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|5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)|
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Hey, new here and I have a question.
my daughter blew the head gasket on her 98 528i, (bigger job than I have the time or talent to complete) so I take it to a mechanic, he tells me it is the head gasket and replaces the head gasket, at the same time he replaces the cooling system (radiator, water pump, thermostat and housing, hoses belts, fan clutch) $2,800...feel my pain. We get the car back and the next day it over heats and starts thowing a engine code that says cyl 3 misfiring...I have it flatbedded to his shop, 3/4 gallon low on "water"...we fill it and he tries to get it to over heat it won't...duh, he drives it for 13 miles around town and still won't over heat. I get in it and drive it for about 50 miles and it over heats...let it cool down and it is 1/2 gallon low on "water" and still missing on cyl 3... he thought that the head must be cracked he took it off and had it pressure tested turned out fine. He said he put a straight edge to the head when he had it off and it was fine...
What do we do next? ever heard of such a thing?
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Bleeding the cooling system is a absolute neccessity. Also I found that an aftermarket thermostat will not work. I had to get a BMW part number one.
lol I was actually hoping it got better with the E39s. The E34's are the same way. Bleed, bleed, bleed, bleed, bleed, bleed, and then bleed, bleed, bleed.
BTW - straight edge is the main method to check for straightness by the machine shops.
When was it overheating, when the car was not moving, like when sitting in traffic, idling, etc? Or was it overheating as you were just driving down the road?
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