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View Full Version : Hard Start, Knocking and exhaust smell



wool
09-23-2009, 04:42 PM
We're talking about a 1995 530it with 206k miles

Several months ago I began to get a pre ignition knocking and a pronounced
exhaust smell. Yesterday I started the engine and it sputtered and shut down. I cranked it for a while before it finally started - and ran very nicely -
It will not restart after sitting for several hours. No codes. Any thoughts before I begin the diagnostic chain. Thanks

Wool