darcwun wrote:On top of the usual recommended serviceable items per manual dealer wants to change, the transmission fluid, rear differential fluid, coolant and brake fluid for my 03 m45 60k service. I thought some of these fluids were long or lifetime lasting fluids and would not need replacing at 60k. Which once these should I fork over the extra cash for?
On my M45, I replace my transmission fluid (including a full flush) every 30k miles, my rear differential fluid will be replaced at 60k miles, my brake fluid every two years (regardless of miles) and the coolant every 30k miles.
In addition to the list you posted, I also plan to replace the power steering fluid and the fan cooling fluid (and, yes, there is such a thing in the M45) at 60k or 67.5k miles. There are no real "lifetime" fluids, unless you expect the life of the car to be darn short!
IMHO, the critical ones to do above are the automatic transmission and the brake fluid - the others are good maintenance habits (although I would certainly not let them go past 90k miles). One is a longevity issue (transmission fluid) and the other is a safety issue (brake fluid). Both have implications (cost and safety) if they fail.
So, yes, I would recommend most, if not all, of the above dealer mentioned list at 60k too!
If you need to spread the cost out a bit, it is not an issue, imho, to stagger some of the work at some later 7500 mile intervals. For example, you might delay the differential fluid and coolant to the 67500 mile mark and brake fluid to 75k miles (maybe). But I would be very careful about the transmission flush every 30k miles ... expensive to replace if it breaks (you would be looking at $2600 to $3200 for that).
Z