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      04-30-2022, 10:02 PM   #25
TheVazha
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Drives: X5Mmmkay.
Join Date: Sep 2015
Location: Los Angeles

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Quote:
Originally Posted by Sophisticated Redneck View Post
Quote:
Originally Posted by M3jamaica View Post
Ok i always loved them, was about to buy a e70, then was gonna go for a f85(seems more reliable), so i found a 2016 with 42k miles, excellent condition. Now after reading all the mantainance issues and reliability problems i can't see myself buying it. I live in a country where there is no warranty for it, but mechanic work not so expensive as in USA. But i read so many threads where it seems a very bad idea to buy a 40k plus miles x5M, the forum makes it seems as I'm gonna spend my life at mechanic shops. 2 weeks ago i was about to drop off the check and collect it, i froze and i didn't. Thinking to buy an M3 instead for the same price. Really wanted the x5M. Am i overstressing cought up into this forum compared to real life?
You can easily get 150k+ miles out of any N63/S63 powered X5. I'm almost at 180k miles on the E70 N63 which was the original and the worst of this engine family. It's modded and tuned and still pushing almost 600hp and drive the hell out of it every day. The F85's S63TU has many improvements, and getting to 200k miles will not be a problem if you follow the simple steps below.

1 - Change oil every 5k miles, no exceptions. Run a good 5-40 oil (Liquid Moly Liechlauf is what I use). I also add 2 cans of the LM Mos2 additive. This protects yours rod bearings IMHO which are the Achilles heal of any turbo engine as turbo engines are more susceptible to LSPI (low speed pre-ignition) Also known as super knock, especially in hotter climates and questionable fuel quality. During LSPI, the oil film is compressed and metal on metal contact happens on the rod and crank bearings. Over time this wears the bearing down and they eventually lose their ability to hold the oil film, catastrophic failure then occurs and your wallet goes on am instant $30,000 dollar diet. MoS2 contains Molybdenum disulfide which vastly improves the oils ability to withstand LSPI events, preventing metal to metal contact and bearing failure. To put this in perspective, a good 5-40 oil will have a shear strength of around 500-580psi, Molybdenum disulfide has a shear strength of approx 3,600psi. Mos2 adds a critical buffer for bearing longevity in turbo engines.

2 - Change transmission, diffs, and transfer case oils every 60k miles.

3 - OPEN YOUR HOOD when you park - Seriously, I know this sounds mundane however nearly every single issue with this platform is due to heat soak in the engine compartment when you park. Parked heat soak temps reach 180+, baking all those expensive sensors, hoses, and plastic bits - drastically reducing their life. Open your hood whenever you are parked in a secure location and let the heat out. Your wallet will thank you for it down the road. I can not emphasize enough how big of a difference this makes on the longevity for the seals, hoses, and plastic parts which make up 90 percent of the parts under your hood.

4 - Avoid stop and go/heavy city traffic and idling for long periods of time when possible, this is again due to heat soak.

Follow these simple rules and you will enjoy many miles of trouble free performance.
Dude great post but who the fuck wants to do all those things spending $120+ on a high performance SUV. The point of these cars is to spend the $ and not have to worry.

That said, I have almost 75,000 spirited miles on mine and no issues. The only reason I'm still driving it is because it's all but bulletproof. I can't see how spending another $120 for a slight improvement is sane.
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