Has anyone done a Transmission filter and fluid change and caused more issues?

[JCL]

Originally Posted by sunny5280

And, given the 2002 model year uses the same transmission as the 2000 and 2001 model years a reasonable person would conclude BMW changed their minds regarding the lifetime fluid. Furthermore given BMW has recommended a fluid change since 2002 one would have to wonder why they would recommend something JCL says is known to cause transmissions failures.

Because the BMW department that wrote that book is playing the odds, and considering the balance of probabilities. Exactly what has been discussed for some time now.

Edit: I can't look up your service link because I get an unsafe link message. I can look at the online manuals posted on this site (US versions). The 2003 version states it was published in August 2002. The 2006 version states it was published in July 2005. Where is this change? It appears these manuals always stated 100,000 miles in the US.

[JCL]

Originally Posted by sunny5280

I've shown you mine, now you show me yours.

As for saying BMW is wrong do you follow BMW's 15K oil change interval?

I can't show you my 2003 Canadian service booklet, as I don't have the vehicle any more. And BMW Canada (who publishes different service books than the US) doesn't put theirs on line.

We don't have a 15,000 mile oil change interval in Canada, but we do use a 24,000 km baseline that is adjusted based on vehicle usage so that the service lights come on at different times. I follow the lights and also limit oil change intervals to 24 months or so, so I have gone up very close to 24,000 km. Works well.

[sunny5280]

Originally Posted by JCL

Because the BMW department that wrote that book is playing the odds, and considering the balance of probabilities. Exactly what has been discussed for some time now.

Please don't damage your credibility any further with this line of "reasoning". It's quite evident to any reasonable person the whole risk you spoke of was nothing more than a wives tale.

Originally Posted by JCL

Edit: I can't look up your service link because I get an unsafe link message. I can look at the online manuals posted on this site (US versions). The 2003 version states it was published in August 2002. The 2006 version states it was published in July 2005. Where is this change? It appears these manuals always stated 100,000 miles in the US.

The change comes from the fact the service interval changed from "lifetime" (I put that in quotes because the earlier manuals don't state it was lifetime...they're just silent on it) to 100K miles for the same transmission. Any reasonable person can see BMW's policy changed during the production. Or are you of the mindset BMW should have gone back and updated their warrant information booklet?

Please JCL...your desperation is making you look foolish. Just admit the position of transmission problems was nothing more than your personal opinion.

[sunny5280]

Originally Posted by JCL

I can't show you my 2003 Canadian service booklet, as I don't have the vehicle any more. And BMW Canada (who publishes different service books than the US) doesn't put theirs on line.

We don't have a 15,000 mile oil change interval in Canada, but we do use a 24,000 km baseline that is adjusted based on vehicle usage so that the service lights come on at different times. I follow the lights and also limit oil change intervals to 24 months or so, so I have gone up very close to 24,000 km. Works well.

I do not know nor do I care what BMW Canada says for service intervals. My position has been that of BMW USA recommendations. However I do not see BMW Canada having different service intervals from BMW USA. Take the 15K mile oil change baseline. 24km is equivalent to 15K miles.

[admranger]

Originally Posted by sunny5280

24km is equivalent to 15K miles.

Or, to be precise, 14,616 miles, so rounded to two significant figures, 15k miles.

I think this topic is dead now.

The OP has either committed suicide after reading the tone of some of the posts, or moved on.

Somebody do us all a favor and lock this thread.

[sunny5280]

Originally Posted by admranger

Or, to be precise, 14,616 miles, so rounded to two significant figures, 15k miles.

I think this topic is dead now.

The OP has either committed suicide after reading the tone of some of the posts, or moved on.

Somebody do us all a favor and lock this thread.

In summary the recommendation should be: If you own a 2002 or later model E53 then following the manufacturers recommendation (i.e. change it every 100K miles). If you own a 2000 or 2001 the manufacturer is silent on whether it should be changed (i.e. I didn't see anything in the service booklet which stated it was lifetime fluid) do what you feel is best for your situation. Since these model years use the same transmission as the 2002 - 2004 model years a change every 100K miles would be reasonable.

[JCL]

Originally Posted by sunny5280

I do not know nor do I care what BMW Canada says for service intervals. My position has been that of BMW USA recommendations. However I do not see BMW Canada having different service intervals from BMW USA. Take the 15K mile oil change baseline. 24km is equivalent to 15K miles.

The point was not that it is 24,000 km or that it is 15,000 km. The point was that BMW does not recommend a fixed service interval, but rather uses a starting point that is dynamically adjusted based on the condition monitoring system. I thought that it was clear that BMW doesn't use fixed mileage intervals.

[JCL]

Originally Posted by admranger

Or, to be precise, 14,616 miles, so rounded to two significant figures, 15k miles.

I think this topic is dead now.

The OP has either committed suicide after reading the tone of some of the posts, or moved on.

Somebody do us all a favor and lock this thread.

I think that the OP got the answer to his question some pages back.

I think this thread is dead, but in a year or so it will come back to life, as it always does.

[sunny5280]

Originally Posted by JCL

The point was not that it is 24,000 km or that it is 15,000 km. The point was that BMW does not recommend a fixed service interval, but rather uses a starting point that is dynamically adjusted based on the condition monitoring system. I thought that it was clear that BMW doesn't use fixed mileage intervals.

This is all tangential. It's been shown BMW recommends a 100K mile transmission fluid change. They've been doing so for approximately 13 years. As you've previously stated you do not recommend not following the manufacturers recommendations (post 91):

"I have not recommended not following manufacturer's recommendations."

I can assume this is the last we'll hear about this wives tale from you.

[sunny5280]

Originally Posted by JCL

I think that the OP got the answer to his question some pages back.

I think this thread is dead, but in a year or so it will come back to life, as it always does.

The difference is this time the wives tale has been buried. Perhaps you'll resurect it in a years time. But we can always give the advice to follow the manufacturers recommendation (which you support). That means change it every 100K miles.