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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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Old 02-02-2017, 03:52 AM
Mattywoo Mattywoo is offline
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Location: New forest
Join Date: Dec 2016
Posts: 12
Mein Auto: 2008 525 m-sport
N53 ccv ?

Hi ,
Took my 523i m-sport to a bmw Indy yesterday as I'm getting erratic tickover when engine warms up , they told me my hpfp needs replacing at a cost of 900 fitted ! But I feel this isn't the issue ..once the engine is warm my oil filler cap has huge vacuum and the ccv makes a hissing noise from drawing in air ..if I realease the pressure via the cap then replace it the tick returns normal and hissing stops until I rev the engine again ?? Could this be a faulty ccv (I get no smoke or much oil use ) or a blocked breather else where ??? Help !!!

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