I have the common "sticky steering" problem on my 2003 BMW Z4. BMW refuses to recall these so instead of replacing the steering column for $3k, there appears to be a fix where some lubricant is squirted into the gearbox. This fix involves drilling a new hole so that can be done so it's not for the faint of heart.
I'm trying to figure out what grease would be best. I've read on the Bimmer Forums that folks have had success but there doesn't appear to be a consensus on the type of lubricant that should be injected. Some use standard grease (I assume Moly) others use silicon gun oil. The gears are some sort of plastic or nylon and BMW seems to use a urea grease on the newer models.
Reading on the WEB I figure I would want to use a synthetic PAO or silicon based grease without moly or EP additives. Anyone have any advice? What's urea grease all about?
I'm trying to figure out what grease would be best. I've read on the Bimmer Forums that folks have had success but there doesn't appear to be a consensus on the type of lubricant that should be injected. Some use standard grease (I assume Moly) others use silicon gun oil. The gears are some sort of plastic or nylon and BMW seems to use a urea grease on the newer models.
Reading on the WEB I figure I would want to use a synthetic PAO or silicon based grease without moly or EP additives. Anyone have any advice? What's urea grease all about?
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