high mileage 1M

1M Tex · 11-26-2023, 12:52 PM

190,000 miles. What does the collective group think the 1M N54 engine can achieve in total miles?

nachob · 11-26-2023, 01:07 PM

Really depends on the care it received. Oil changes etc. The engine can probably go a little more but stuff around it breaks. Turbo lines leaks, vanos will need rebuilding, vacuum leaks etc. The amazing thing about the 1M is that the stuff is not exotic though as far as the engine goes. If you don't drive it a lot, it will be better but I wouldn't get it as a daily at that mileage. Just too much plastic stuff that will start to fail.

PRTSB1M · 11-26-2023, 01:14 PM

300k for internal bearing surfaces. How much oil is it consuming at 190k?

1M Tex · 11-26-2023, 03:44 PM

No oil consumption. Oil changed with Liqimoly every 5000. Vanos errors appearing.

PRTSB1M · 11-26-2023, 07:55 PM

No oil consumption is a great sign. I have spare vanos solenoids for when mine start to fail. Have you tried cleaning or replacing the vanos solenoids yet?

1M Tex · 11-26-2023, 08:47 PM

Yes. New ones installed.

PRTSB1M · 11-27-2023, 05:39 AM

If it were my 1M and I was getting vanos errors at 190k after replacing the solenoids, I would probably consider replacing the whole timing setup... and maybe cams/springs/guides while I'm in there.

1M Tex · 11-27-2023, 08:05 AM

Agree. Or replace the entire engine.

PRTSB1M · 11-27-2023, 01:52 PM

Quote:

Originally Posted by 1M Tex

Agree. Or replace the entire engine.

Yeah, a full rebuild would probably be in order, as long as the cylinders and crank are still in good shape (should be with no oil consumption). Fresh rods and a set of mahle's forged pistons would be nice.

I'm only at 60k on mine, but have RB ones, akra down and mid pipes, uprated low pressure fuel pump, dual oil coolers, CSF radiator, and a fresh water pump to put in over the winter.

Shifting at 7k in the spring

Pyrat_1M · 11-27-2023, 07:51 PM

Quote:

Originally Posted by 1M Tex

Agree. Or replace the entire engine.

This.

N54's are dirt cheap, just swap it out for a low milage one from a wreck.

1M Tex · 12-20-2023, 08:20 PM

Compression test completed all cylinders at 191 psi. Cam cradles in excellent condition. New vanos actuators and chain and seals going on. Let's go another 100,000 miles!

Eyeman · 12-25-2023, 10:36 AM

That's cool to see. I have 140k miles on my full modded 135, I'm surprised to see a 190k mile driven 1M. My car has 400whp and I bet I averaged oil changes around every 10k miles and I have no oil consumption. I'd guess my car goes into limp mode about twice as often as it did when lower miles (almost always I just turn it off and it's fine when restarted).

11-26-2023, 12:52 PM	#1
1M Tex Private First Class 240 Rep 138 Posts Drives: 2011 BMW 1M Coupe, AW, Join Date: Jul 2011 Location: Dallas, Texas, USA iTrader: (0)	high mileage 1M 190,000 miles. What does the collective group think the 1M N54 engine can achieve in total miles? __________________ The 1 series M is the most badass, coolest, sickest BMW to debut since the 1988 M3. The E30 M3 finally has a successor. Please welcome the stupidly fast, wickedly tempered, awkwardly named, possibly perfect little son of a benchmark - Automobile Magazine, August 2011
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11-26-2023, 01:07 PM	#2
nachob Brigadier General 2314 Rep 4,341 Posts Drives: 2004 330i ZHP, 2022 Cayman T Join Date: Apr 2008 Location: California iTrader: (5)	Really depends on the care it received. Oil changes etc. The engine can probably go a little more but stuff around it breaks. Turbo lines leaks, vanos will need rebuilding, vacuum leaks etc. The amazing thing about the 1M is that the stuff is not exotic though as far as the engine goes. If you don't drive it a lot, it will be better but I wouldn't get it as a daily at that mileage. Just too much plastic stuff that will start to fail.
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11-26-2023, 01:14 PM	#3
PRTSB1M Lieutenant 300 Rep 429 Posts Drives: AW3 1M Join Date: Feb 2015 Location: Thunderdome iTrader: (0)	300k for internal bearing surfaces. How much oil is it consuming at 190k?
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11-26-2023, 03:44 PM	#4
1M Tex Private First Class 240 Rep 138 Posts Drives: 2011 BMW 1M Coupe, AW, Join Date: Jul 2011 Location: Dallas, Texas, USA iTrader: (0)	No oil consumption. Oil changed with Liqimoly every 5000. Vanos errors appearing. __________________ The 1 series M is the most badass, coolest, sickest BMW to debut since the 1988 M3. The E30 M3 finally has a successor. Please welcome the stupidly fast, wickedly tempered, awkwardly named, possibly perfect little son of a benchmark - Automobile Magazine, August 2011
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11-26-2023, 07:55 PM	#5
PRTSB1M Lieutenant 300 Rep 429 Posts Drives: AW3 1M Join Date: Feb 2015 Location: Thunderdome iTrader: (0)	No oil consumption is a great sign. I have spare vanos solenoids for when mine start to fail. Have you tried cleaning or replacing the vanos solenoids yet?
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11-26-2023, 08:47 PM	#6
1M Tex Private First Class 240 Rep 138 Posts Drives: 2011 BMW 1M Coupe, AW, Join Date: Jul 2011 Location: Dallas, Texas, USA iTrader: (0)	Yes. New ones installed. __________________ The 1 series M is the most badass, coolest, sickest BMW to debut since the 1988 M3. The E30 M3 finally has a successor. Please welcome the stupidly fast, wickedly tempered, awkwardly named, possibly perfect little son of a benchmark - Automobile Magazine, August 2011
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11-27-2023, 05:39 AM	#7
PRTSB1M Lieutenant 300 Rep 429 Posts Drives: AW3 1M Join Date: Feb 2015 Location: Thunderdome iTrader: (0)	If it were my 1M and I was getting vanos errors at 190k after replacing the solenoids, I would probably consider replacing the whole timing setup... and maybe cams/springs/guides while I'm in there.
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11-27-2023, 08:05 AM	#8
1M Tex Private First Class 240 Rep 138 Posts Drives: 2011 BMW 1M Coupe, AW, Join Date: Jul 2011 Location: Dallas, Texas, USA iTrader: (0)	Agree. Or replace the entire engine. __________________ The 1 series M is the most badass, coolest, sickest BMW to debut since the 1988 M3. The E30 M3 finally has a successor. Please welcome the stupidly fast, wickedly tempered, awkwardly named, possibly perfect little son of a benchmark - Automobile Magazine, August 2011
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12-20-2023, 08:20 PM	#11
1M Tex Private First Class 240 Rep 138 Posts Drives: 2011 BMW 1M Coupe, AW, Join Date: Jul 2011 Location: Dallas, Texas, USA iTrader: (0)	Compression test completed all cylinders at 191 psi. Cam cradles in excellent condition. New vanos actuators and chain and seals going on. Let's go another 100,000 miles! __________________ The 1 series M is the most badass, coolest, sickest BMW to debut since the 1988 M3. The E30 M3 finally has a successor. Please welcome the stupidly fast, wickedly tempered, awkwardly named, possibly perfect little son of a benchmark - Automobile Magazine, August 2011
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12-25-2023, 10:36 AM	#12
Eyeman Colonel 121 Rep 2,037 Posts Drives: 2008 135 blk, blk, step Join Date: Jan 2009 Location: Atlanta, GA iTrader: (0) Garage List 1994 Porsche 968 Cab [0.00] 2017 AMG GTS [0.00] 1994 Porsche 968 Coupe [0.00] 1977 Mercedes 450SE ... [0.00] 2008 135 [8.00]	That's cool to see. I have 140k miles on my full modded 135, I'm surprised to see a 190k mile driven 1M. My car has 400whp and I bet I averaged oil changes around every 10k miles and I have no oil consumption. I'd guess my car goes into limp mode about twice as often as it did when lower miles (almost always I just turn it off and it's fine when restarted). __________________ Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, PSS4S 225/35fr 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, iCarbon diffuser, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod, Ebay Mstyle front bumper and performance style side skirts.
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