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Re: 1993 525iT engine tune check list (archive)

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Posted by Bill R. on July 31, 2001 at 09:52:07:

In Reply to: 1993 525iT engine tune check list posted by Brumm (Gedern) on July 30, 2001 at 23:22:49:

Hi Brumm,
Your stuff is on the way. For a general tune on yours I would change plugs, check the insulators on the coils for arcing, change fuel filter, change air filter, Clean the throttle by hand with some cotton cloths and fuel injection throttle body cleaner, Open the throttle bore and wipe it out with the cleaner and cloths. Clean both sides of the throttle plate as well. Check the various vacum lines for cracking and air leaks. Check electrical connectors on injection and dme related components. Check the battery connectors and battery condition. Check the brake fluid and flush yearly. Check brake pads, Check belt condition and A/C sightglass Check hoses and cooling system for signs of leakage. Change trans fluid on auto if its not the lifetime fluid, change filter and pan gasket as well. If your near 100k You might think about changing the o2 sensor as well.

My wife's 93'525it needs a general engine tuning. Does anyone have a BMW recommended check or to do list.



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