ACS523i 0 Report post Posted May 6, 2010 Hi All Our E39 ACS523i recently had it's service, and has developed an oil leak. Our BMW guy - Ex Jeff Gray/ Shelley BMW - reckons it may be the gasket around the oil filter - does this sound common??? Our E39 has done 170kms now - anyone know of related/ common leaks - whether it's likely to be serious and pricing if you've has similar prob's and had them repaired ??? Cheers All Steve Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted May 6, 2010 (edited) It's quite a common problem. The oil filter remote housing gaskets leak on M40, M43, M44, M50, M52, M54. The gaskets are cheap, the labour to do the job varies on engine type. To do yours, including cleaning out the housing and resealing the gallery plugs is quite easy. The early model 6 cylinders have press fit plugs which are not easy to do, however yours has threaded gallery plugs and its alot easier, should take 1.5-2 hrs to do. The gasket ("O" ring) costs $10. The vanos hose might also be leaking. Rocker cover gaskets, sump gaskets and dipstick breather hoses are other common problems which will cause oil leaks. Edited May 6, 2010 by *Glenn* Quote Share this post Link to post Share on other sites
ACS523i 0 Report post Posted October 14, 2010 Thanks Glenn All sorted as per your response, quick and cheap fix (most expensive part was the degrease and cleanup) Cheers Steve Quote Share this post Link to post Share on other sites
