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  #1  
Old 03-23-2024, 04:04 AM
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Question E53 N62 Post if you have greater than 260K

Hi all, just coming up on 260,000 km for my 2004/5 X5 E53 4.4i. Would be interested if anyone out there still has one of these and has done more than this. ie 161,556 miles.
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  #2  
Old 03-23-2024, 04:28 AM
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I hit 292k this week and it's great seeing it tick over but I do worry sometimes since it gets hot enough to burn the devils ass here....

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Old 03-23-2024, 09:18 AM
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For much of the engine parts it's prob better. Your engine stats pre heated. Mine takes 10-20 minutes to get up to temperature. The rubber and plastic parts are a different story though
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Old 03-23-2024, 09:19 AM
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Does it count if it’s on an engine stand? I pulled my 4.4 out at 160k miles and replaced it. It was leaking like a sieve, and clattering like crazy on start-up, but still running.

I still have the motor and want to rebuild it for another project someday. A 635 csi resto-mod is my current thinking.
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Old 03-23-2024, 09:24 AM
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Quote:
Originally Posted by andrewwynn View Post
For much of the engine parts it's prob better. Your engine stats pre heated. Mine takes 10-20 minutes to get up to temperature. The rubber and plastic parts are a different story though
I hear you!
On the plus side I am so rust free that the White Witch looks Scotch Brited underneath with a dirt under coating...



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Old 03-23-2024, 09:36 AM
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E53 N62 Post if you have greater than 260K

It's literally sand blasted.

I'm not exaggerating about the 20 minutes. I'm cross posting since I'm now driving n55 powered e70 but I have to turn off the heater when it's below 40f=4.444 c outside if I want to get engine up to temp in less than 15-20 minutes.

The DME runs the coolant pump at 60% when ambient is less than 50f=10c to heat the cabin. With heat off more like 25%.

I've read about people getting over 300,000 mi on well maintained m62. Change that chain tensioner every 60,000 miles once your over 120 or risk chain guide catastrophic failure.
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Last edited by andrewwynn; 03-23-2024 at 10:55 AM.
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Old 03-23-2024, 11:43 AM
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Originally Posted by andrewwynn View Post
I've read about people getting over 300,000 mi on well maintained m62. Change that chain tensioner every 60,000 miles once your over 120 or risk chain guide catastrophic failure.
OP is asking ab the N62.

My '04 with ~186k miles this month is at ~300km. From the last mileage shot:

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Old 03-23-2024, 11:58 AM
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E53 N62 Post if you have greater than 260K

Good catch n62. That motor should be even more reliable long term with the split timing chain but needs more upkeep in the VSS Department. It does also need preventive maintenance in the chain tensioner department. t's when left unattended to when the chain guides fail it has a different type of fault where the chain literally becomes a chain saw and starts cutting though the timing gear.

I've read of handfuls of N62 in the mid 200,000 miles but always after vss job that is apparently inevitable on that motor though I don't know the timeline of miles/years.

I was expecting to have to find that out when I thought n62 was going to be my next power plant when I leap frog by forced hand (deer killed my e53) and ended up with N55. It's got less power but more speed due to clever use of lots of gears (8) and wide ranging twin vane single turbo.

I really didn't want turbo or Valvetronic ended up with both go figure!

4.6 was my goal motor but it was literally more expensive to get 2006 than a 2011 and on trips where I get 27mpg and when I get 21.5 avg mixed driving I'm happy with the outcome.

Just planting some seeds for that eventual need to change chassis. There are things I still miss a lot about my e53 but I've worked through the misgivings and and have found peace.

I'm really not looking forward to the eventual F15/G05 phase. I do not like the iPad stuck in the dash look or worse the button vs. stalk cruise control or the wrong side of the wheel volume control.

So: back to topic: keep that n62 running long as you can the chassis and the motor are wonderful! I don't love the work it takes to get into the timing gear and the relative risk of the first gen Valvetronic but once you get over a certain age I think it's a reasonable long running plant. Should only have to do VSS once and change the tensioners enough you should never have to change the guides.
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Old 03-23-2024, 12:08 PM
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Quote:
Originally Posted by andrewwynn View Post
Good catch n62. That motor should be even more reliable long term with the split timing chain but needs more upkeep in the VSS Department. It does also need preventive maintenance in the chain tensioner department. t's when left unattended to when the chain guides fail it has a different type of fault where the chain literally becomes a chain saw and starts cutting though the timing gear.

I've read of handfuls of N62 in the mid 200,000 miles but always after vss job that is apparently inevitable on that motor though I don't know the timeline of miles/years.
Our experience has been inconsistent at best. On the 4.8, they failed just about as expected. I was only getting a little blue smoke, but we had some other work to do nearby- water pipe I think. So, I went ahead and proactively did the VSS at ~111k miles. The '04 4.4 though went late last year at less than 55k miles. That one hurt.

So now, at ~186k miles, I am seeing a little oil burn but only a little blue smoke when cold. I have pledged not to do seals again on the blue one- or indeed never again on any N62. Which is why I am happy to read your experience here.
Quote:
Originally Posted by andrewwynn View Post
I was expecting to have to find that out when I thought n62 was going to be my next power plant when I leap frog by forced hand (deer killed my e53) and ended up with N55. It's got less power but more speed due to clever use of lots of gears (8) and wide ranging twin vane single turbo.

I really didn't want turbo or Valvetronic ended up with both go figure!

4.6 was my goal motor but it was literally more expensive to get 2006 than a 2011 and on trips where I get 27mpg and when I get 21.5 avg mixed driving I'm happy with the outcome.

Just planting some seeds for that eventual need to change chassis. There are things I still miss a lot about my e53 but I've worked through the misgivings and and have found peace.

I'm really not looking forward to the eventual F15/G05 phase. I do not like the iPad stuck in the dash look or worse the button vs. stalk cruise control or the wrong side of the wheel volume control.

So: back to topic: keep that n62 running long as you can the chassis and the motor are wonderful! I don't love the work it takes to get into the timing gear and the relative risk of the first gen Valvetronic but once you get over a certain age I think it's a reasonable long running plant. Should only have to do VSS once and change the tensioners enough you should never have to change the guides.
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Old 03-23-2024, 03:00 PM
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My mistake…read right over the “N” in N62. Mine is an M62 on a stick currently.

Just test drove an X5 with my wife today. Beautiful car, very nice leather interior, quiet as a mouse and the 4.0 they had on the lot had lots of schlitz on the road. Based on this we are going to order a 50e next week. Wonder if that set up will get anywhere near 160k!?
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