2003 BMW 530i Q&A

2003 BMW 530i Question: Burning Smell

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. -
Answer 1
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 -
Comment 1
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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