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2003 BMW 530i Question: Burning Smell



, Tacoma, WA, February 14, 2011, 11:38

I had the value cover gaskets replaced and smell went away for a short while (several weeks), but is back again. Took car to shop for a review...no oil leaks visible, oil level fine. Will be taking car in for more diagnostics, but was wondering if it could be a coolant hose leak. Smell is prevalent when the heater blower is on and after driving for awhile, not when you first start the car.

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    Auburn Foreign & Domestic (194 Answers) , Auburn, WA - (253) 259-3676
    Greg-Julia February 14, 2011, 12:49

    Coolant odor in a BMW is not very noticeable- the coolant BMW uses does not have much odor. You would also have a low coolant warning light on by now. When a valve cover gasket is replaced on a 530i oil will leak onto the exhaust manifold- it is possible the shop that did the work did not clean it up well or may have not installed it properly. Let me know if you need more help! Greg

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    , February 14, 2011, 13:08

    it is very common to also have a secondary oil leak; usually at the oil filter housing gasket. because oil always flows downhill, it's always good to start at the
    top (valve covers). it's not your car; it's just every
    six cylinder BMW ever built---they all leak.

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