n52 longevity

equ · 10-07-2007, 09:24 AM

Now that there seems to be a buyer for the s4, I need to think of my upcoming bmw. Still not decided between e46 & e90 but leaning towards the latter. I even started thinking of euro delivery as the stars seem to line up...

I have unused vacation, I will be buying an xi, we have a couple of cars to get us through a couple of months. The weather is a big if, but then I might go skiing in the alps. If I get serious about it, that'll be a separate thread.

One thing I'm wondering about is n52 longevity (the 100-200k miles kind that I haven't been getting to since my student days

). I've owned two m54's and an m52tu and I trust them both highly. The m52tu does have a stall loop (but it's not really a mechanical fault and I'm confident it will go long). The m54 is also a bit finicky at idle (especially in zhp form) but seems rock solid.

The idea of a daily driver engine that can see 150k with oil changes (and hopefully no timing/valve work) is very attractive to me. The n52 block is magnesium/aluminum. I'm sure bmw tested this extensively but then again fancy alloys worry me... Any thoughts?

10-07-2007, 09:24 AM	#1
equ Alphanumeric Join Date: Aug 2005 Carmudgeonly Ride: 981S, 340i Posts: 9,584	n52 longevity Now that there seems to be a buyer for the s4, I need to think of my upcoming bmw. Still not decided between e46 & e90 but leaning towards the latter. I even started thinking of euro delivery as the stars seem to line up... I have unused vacation, I will be buying an xi, we have a couple of cars to get us through a couple of months. The weather is a big if, but then I might go skiing in the alps. If I get serious about it, that'll be a separate thread. One thing I'm wondering about is n52 longevity (the 100-200k miles kind that I haven't been getting to since my student days ). I've owned two m54's and an m52tu and I trust them both highly. The m52tu does have a stall loop (but it's not really a mechanical fault and I'm confident it will go long). The m54 is also a bit finicky at idle (especially in zhp form) but seems rock solid. The idea of a daily driver engine that can see 150k with oil changes (and hopefully no timing/valve work) is very attractive to me. The n52 block is magnesium/aluminum. I'm sure bmw tested this extensively but then again fancy alloys worry me... Any thoughts?