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Old 03-20-2011, 08:41 AM
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Oil Fouling/consumption Question

Hey I have made comments about this before. I'm becoming more concerned.

2002 e53, 3.0, 133,000 miles

Here are the symptoms:
-oil fouled plugs
-hard starting when warm,
-quick/first time start when cold
-oil spots on trailer after 3,000 mile trip
-uses 1 qt every 1500 miles

I alternate between M1 0-40 or castrol syntec 5-30. It doesn't seem to matter which oil.
Would a thicker oil be better? I experience 5 degree weather here sometimes in the winter. Do you have any suggestions about an oil choice or repair or do nothing?

Otherwise the car runs great, no noise/very quiet, feels like a new car power and engine wise. Lots of power pulling trailer etc.
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Old 03-20-2011, 08:47 AM
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pcv valve. change it
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Old 03-20-2011, 04:23 PM
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Is that the same thing as the CCV?
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Old 03-20-2011, 07:06 PM
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Yes, BMWs don't use a PCV but rather a CCV. Same function.
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Old 03-21-2011, 12:00 AM
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Incorrect, the bmw uses a PCV. not a CCV. It is called a pressure control valve.
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Old 03-21-2011, 12:33 AM
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I believe the reference was to a PCV valve, not a PC valve

I've heard the CCV called a pressure regulating valve.

Isn't the pressure control valve in the transmission?
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