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1,6,7,8 - Series and Mini Cooper General Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.

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Old 11-14-2008, 06:59 AM   #1 (permalink)
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Unhappy "Can you help???"

The car is a 1987 BMW 735i E32.

The head gasket was replace 1500 km ago with the head fully reconditioned,including new radiator with thermo fans. Since then we have had three radiator flushes, the last one had 150ltrs flushed through, and after only a few km of driving the overflow bottle fills with more oil than coolant.

This does not make sense to us as with good compression and CO2 tests, and no water to oil contamination, itís not the head. The car starts, runs fine, and does not overheat.

Does this engine have an oil cooler that could maybe causing this problem??
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Old 11-14-2008, 10:50 AM   #2 (permalink)
OMFG another one!?
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If oil gets into the coolant, the head gasket must be leaking. Any oil cooler would be closed to the oil circulation system (the cooler would be located in the lower part of the front air dam).

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Old 11-14-2008, 11:45 AM   #3 (permalink)
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a1papa, If your engine was overheated at some stage your problem could be a cracked block or head. A crack from an oil passage to the water jacket will cause this problem. The oil pressure, being higher, will cross over into the water jacket. Difficult to locate but your problem may just be at the head gasket. Was the head torqued properly and then rechecked? Pull the head off again and check the gasket where the oil passes through to the head. I'll bet that's where your problem lies.
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Old 06-19-2009, 04:18 PM   #4 (permalink)
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all chek that head gasket > similar problem with an 89 e32 il
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