Quote:
Originally Posted by N54lr
So I just bought a 2007 e90 335 6mt ,I wanted a 335 for years but I was just too afraid to buy one ,everyone told me not to buy one because they are super unreliable ,the car has 81k miles bought it at 79k miles I bought the car for 7 k from some older gentleman , being super paranoid I did a lot of stuff to the car before I started tuning it,I change the indx 1 that where on the car with index 12 ,valve cover gasket, ofhg,serpentine belt and pully's,7.5 vrsf intercooler down pipes,and a tile bov the car had this noise even before I start to do al the maintenance ,and I can't figure it out what it could it be it's like a hissing noise when I let of the throttle ,and it's not the bov
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Hi,
can you start your own thread and describe exactly what is going on ?
I mean when the hissing starts ? if the hissing is when you let off the throttle after boosting, it's likely to be a normal sound of the BOV, it just dumps the excess of boost and it does a "woosh" sound.