5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
New to E39's, my wife had an awesome e34 that was used to cushion two SUV's. Shortly thereafter the insurance co. decided it wasn't worth fixing. Anyway, we ended up finding and buying a beautiful 2001 525i that looked and ran great. The only problem it had and we knew was a stuck open tstat. Living in FL. we weren't too concerned as it seemed fine and I figured I would correct at some point in the future.
Fast forward a couple weeks and we are having some cold weather,(for us) and suddenly the e39 isn't happy at all. Can't run it on the interstate as it drops the operating temp down in to the blue zone. So we figured until I get it fixed we'd just use for local driving but now with it being colder the car stalls right out. Only way to keep it running is to hold the throttle at about 1000rpm's until it warms up a little and then it runs fine.
Does this sound like just a tstat problem or maybe a VANOS issue as well? Doesn't have all the VANOS symptoms I have seen but I am concerned it is more than the tstat. Any help would be appreciated.
My guess is also that the thermostat could do all of that.
My suggestion is to do more than the thermostat if you can afford it. Thermostat, water pump, radiator, and fan clutch all together would be the best combo. Those are listed in order of priority. Remember also that when you do the thermostat you should also do the thermostat housing.
I'm not sure if you are aware but OEM is Original Equipment Manufacturer, in other words you are getting stock parts. On the other hand if you are looking for cheaper and/or better parts............ Personally, I am a fan of PBR metal master brake pads. They seem to stop better and dust less than factory. As far as springs, I have only used OEM so I can't tell you if there is a better cost effective alternative.
100% agreed with Teh Prof. I also have an E39, although with a M52TU, and my car HATES the cold. I have to replace the faulty crankcase vent valve as it opens too much in the cold and causes a vacuum leak. First thing first is to replace the thermostat and then the water pump.
ck1995, thanks ... how I can order the brake pads & what is the price?
Acually, I have replaced all my brake pads & brakediscs recently by a cost effective ones but after that I had a noise problem "squeaking" when braking .. I guess front side only ... Therefore I am thinking to replace the brake pads by better ones & to keep the brakediscs.
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