Quote:
Originally Posted by JCL
Couple of comments:
1) You appear to have annual mileage around 20,000 or so. Some of the items you have listed depend more on age than mileage, so while the intervals work for you other posters may want to adjust them to similar age intervals. Examples would be cooling system components, and brake fluid flush. Are you doing your coolant more often than 150,000 miles? I use four years, myself.
2) Engine air filter and cabin air filter?
3) Battery?
4) Water pump?
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I'm actually doing 25,000 miles per year. The first owner just put 53,000 on it during his lease. The coolant was only completely changed one prior time at about 100,000 miles when the expansion tank blew. So, I'm now on my second complete flush. Other than that, it's only been topped off as needed like with the thermostat replacements, with BMW coolant. I'm still on the original water pump - no leaks or performance problems.
I have a K&N air filter I clean every 50,000 miles, and I do change the cabin air filter every summer after our wonderful Texas oak tree pollen season is over! The original battery lasted seven years, and I replaced it with the larger V8 size battery from Autozone.
It's interesting you mention coolant at four years though because of the number of radiator replacements I have noticed in other postings. Most of them seem to come from members in northern states which tells me there are probably corrosion concerns from salt exposure, not coolant life issues (as long as you're using the proper coolant). I worked for both a Japanese (Zexel) and a German (Behr) automotive A/C condenser manufacturers and the fin material we used was a specially produced zinc coated aluminum for salt spray resistance. Like I said, I think the fact I'm in Texas has contributed to my good fortune with the vehicle.
2002 X5 3.0 252,500 miles
2004 325i 113,000 miles