Season driven z4m 40k miles maintenance

[just2talented]

So my Z4 has about 40k on the clock and usually only driven in the warmer months. Its a 2006 and oil is changed roughly every 5k miles or at the beginning of every season religioulsy. Since its getting a little up there in age im thinking that this spring i should really swap out some fluids and do some routine work. However since i bought my car used and the BMW dealer i bought it from is less than useless with my request for scheduled maintenance intervals and lists, i thought id ask here since theres alot more enthusiasts on here than at the dealer.

Im thinking oil change but that goes without saying, Trans fluid, diff fluid, clutch fluid, brake flush? Air filter is K&N and only has 2-3k on it. Any other suggestions are very welcomed. Tires are also new also. Pads seem good so far with no warning lights. Thanks!

PS i did look for a thread on this but i couldnt find much so dont yell at me if there are any!! hahaa

[G80indy]

plus radiator flush with BMW coolant + distilled water
maybe power steering flush (ATF)
new spark plugs
check your control arm bushings
maybe an alignment
how's your battery?
I assume you've had the every 25k valve clearance job

the list can go on and on

[elwesso]

My preferred way of doing PS fluid is to go buy a turkey baster, and just suck the fluid out of the reservoir and replace with new.. Do this every time you drive the car for say 5-6 drives and you should have mostly new fluid. The PS system only holds about 1-2 qts so you won't go through a lot fluid doing it this way. I've done this on other cars and very DIY friendly.

I'd ditch the K/N personally.. Plenty to read on that.

If you're changing the clutch fluid, remove the CDV while you're in there.

Diff, tranny, brake, and coolant fluid are good to do as well..

You should have done a Service II, which would include spark plugs.. At service II you should check the valves and adjust as necessary.

[RobMCoupe]

I recommend purchasing a power bleeder to bleed brakes and clutch. It makes the job much easier. The clutch bleeder nipple is difficult to get to. There isn't much room there and it is 7mm not 9mm for the brakes. I have to run out to purchase 7mm to complete the job.