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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Nov-07-2018, 06:22:02 PM   #181
aznbo187
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Default Re: High mileage M3 only - 150k+ only club

At 160k now and have been burning/leaking a good bit of oil.
1 quart every 2k. Replaced most common culprits (VCG, CPV, Oil Separator, VANOS). Maybe rear main could be leaking or faulty VCG, but have yet to pinpoint.

Regardless, my rod bearings are also due (replaced at 30k) and if burning oil is from valves or piston rings (occasional white smoke, very light), or head gasket, I'm wondering if replacing it with a newer low mileage engine for $4,000 would be a better decision than to drop $2,000 on rod bearings, plus other major engine items that are starting to show wear (piston rings, head).

Curious what other high-milers think when it comes down to replacing some additional parts that could add up to the cost of a new, lower mile engine. Additionally, of course the lower mile engine would still need similar maintenance done (outside of what can be transferred over) but at the point of the engine being out the car, I'm able to do those replacements myself and would only occur the parts cost.
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Old Wed, Nov-07-2018, 06:29:55 PM   #182
Obioban
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Default Re: High mileage M3 only - 150k+ only club

Quote:
Originally Posted by aznbo187 View Post
At 160k now and have been burning/leaking a good bit of oil.
1 quart every 2k. Replaced most common culprits (VCG, CPV, Oil Separator, VANOS). Maybe rear main could be leaking or faulty VCG, but have yet to pinpoint.

Regardless, my rod bearings are also due (replaced at 30k) and if burning oil is from valves or piston rings (occasional white smoke, very light), or head gasket, I'm wondering if replacing it with a newer low mileage engine for $4,000 would be a better decision than to drop $2,000 on rod bearings, plus other major engine items that are starting to show wear (piston rings, head).

Curious what other high-milers think when it comes down to replacing some additional parts that could add up to the cost of a new, lower mile engine. Additionally, of course the lower mile engine would still need similar maintenance done (outside of what can be transferred over) but at the point of the engine being out the car, I'm able to do those replacements myself and would only occur the parts cost.
Any time you change engine, there's a bit of trading the evil you know for the one that you don't. Might be fine. Might not.
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Last edited by Obioban; Thu, Nov-08-2018 at 08:08:58 PM.
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Old Wed, Nov-07-2018, 06:35:05 PM   #183
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Default Re: High mileage M3 only - 150k+ only club

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Originally Posted by Obioban View Post
Any time you change engine, there's a bit of trading the evil you know for the one that you don't. Mind be fine. Might not.
"Better the devil you know than the devil you don't"
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Old Wed, Nov-07-2018, 07:14:11 PM   #184
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Default Re: High mileage M3 only - 150k+ only club

Quote:
Originally Posted by aznbo187 View Post
At 160k now and have been burning/leaking a good bit of oil.
1 quart every 2k. Replaced most common culprits (VCG, CPV, Oil Separator, VANOS). Maybe rear main could be leaking or faulty VCG, but have yet to pinpoint.

Regardless, my rod bearings are also due (replaced at 30k) and if burning oil is from valves or piston rings (occasional white smoke, very light), or head gasket, I'm wondering if replacing it with a newer low mileage engine for $4,000 would be a better decision than to drop $2,000 on rod bearings, plus other major engine items that are starting to show wear (piston rings, head).

Curious what other high-milers think when it comes down to replacing some additional parts that could add up to the cost of a new, lower mile engine. Additionally, of course the lower mile engine would still need similar maintenance done (outside of what can be transferred over) but at the point of the engine being out the car, I'm able to do those replacements myself and would only occur the parts cost.
Why not just rebuild?

Also 194k here
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Old Wed, Nov-07-2018, 07:14:45 PM   #185
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Default Re: High mileage M3 only - 150k+ only club

Quote:
Originally Posted by aznbo187 View Post
At 160k now and have been burning/leaking a good bit of oil.
1 quart every 2k. Replaced most common culprits (VCG, CPV, Oil Separator, VANOS). Maybe rear main could be leaking or faulty VCG, but have yet to pinpoint.

Regardless, my rod bearings are also due (replaced at 30k) and if burning oil is from valves or piston rings (occasional white smoke, very light), or head gasket, I'm wondering if replacing it with a newer low mileage engine for $4,000 would be a better decision than to drop $2,000 on rod bearings, plus other major engine items that are starting to show wear (piston rings, head).

Curious what other high-milers think when it comes down to replacing some additional parts that could add up to the cost of a new, lower mile engine. Additionally, of course the lower mile engine would still need similar maintenance done (outside of what can be transferred over) but at the point of the engine being out the car, I'm able to do those replacements myself and would only occur the parts cost.
I just replaced my RMS at 153k it was so toasted it basically crumbled removing it. Have 6k miles on the car since and its not loosing oil anymore. A RMS is alot cheaper than a used motor too.
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Old Thu, Nov-08-2018, 12:53:35 AM   #186
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Default Re: High mileage M3 only - 150k+ only club

Mine is currently at 209k. I bought it at 195k. The paint looks worse for wear but it runs great.

It surprised the service writer when she saw the mileage on the check-in form when I dropped it off for the airbag recall.

Feels strong for the miles though. I've had the bearings done about 10k miles ago (PO had done them himself at 175k). Doesn't leak oil and doesn't burn oil either (10W60). Must have been a lot of highway miles.

I should be doing a valve adjustment and VANOS lockdown soon.

nice
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Old Thu, Nov-08-2018, 12:57:34 AM   #187
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Default Re: High mileage M3 only - 150k+ only club

At 172.5k now. Car still drives well - in fact in many ways it drives better than it ever has because of the maintenance / repairs I've done this year. New clutch (at which point I did an AS SSK at the same time), new brakes all around, rear subframe repaired/reinforced with all new bushings in the rear. In fact, there isn't a single bushing anywhere in the car that's from the factory anymore.

Engine seems to burn a little bit of oil now (or I have a leak that I've yet to identify). Guestimating, I'd say I'd lose about a 1 quart every 10k miles if I let it go that far between oil changes. A part of me is worried about some of the less common S54 issues, like the head gasket, creeping up on me. But for now I'm happy with how the car stands.
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Old Thu, Nov-08-2018, 03:22:25 AM   #188
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Default Re: High mileage M3 only - 150k+ only club

Looks I'm new money and just bought myself into an exclusive club.

Bought it at 156,xxx miles. And currently at about 157700 and have already had the VANOS / Bearings done.

Just realized I probably need to check the oil but's only been 500 miles since the bearings were done anyway.
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Old Thu, Nov-08-2018, 05:31:22 PM   #189
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Default Re: High mileage M3 only - 150k+ only club

190k on mine now. thats all ill say for sake of screwing myself by bragging how good everything is.

i drive 20k miles a year on it lately. but has always been all highway. (my city is spread out and have to drive on interstate at 80mph for 20-40 minutes to get anywhere. so im just idling 70 percent of the time at 70-80mph. sees redline daily or just under a couple times.
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Old Thu, Nov-08-2018, 08:01:26 PM   #190
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Default Re: High mileage M3 only - 150k+ only club

202K, major components failing the last 10k.

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Discussing High mileage M3 only - 150k+ only club in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)