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2Addicts | BMW 2-Series forum Technical Topics N20 (228i) / B46 (230i) Engine, Transmission, Exhaust, Tuning Highest mileage?

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      09-29-2020, 10:31 PM   #1
PeanuKeeyes
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Highest mileage?

So letís hear it. Itís been a few years since this was asked over on the 3 series forum, if Iím not mistaken. Just checking in to see if there are any high mileage 220ís/228ís out there. If so, how goes the N20 journey?

Iíve all but decided that this engine, unless heavily internally modified, should probably remain untuned as Iím in it for the long haul. But no issues here at 48k. Hoping for some good news...!
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      09-29-2020, 11:28 PM   #2
CarbonLion
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2015 228i  [0.00]
46K here, 08/14 build MY '15...no issues and love this car. Put on about 20K miles after 1 year of ownership (100 mile commute), with 5K oil change intervals. It may be naÔve but this has given me peace of mind so far when it comes to the N20
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      10-27-2020, 07:18 AM   #3
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MY'15 with 82K miles. no issues whatsoever. probably the best car i've owned in 35 years of driving and owning cars.
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      10-27-2020, 02:39 PM   #4
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Definitely not the highest mileage, but I have 28,550. Funny thing is that I drive it every day.
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      10-29-2020, 03:53 PM   #5
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57k, MY14. Fuel pump replaced in 2015, thermostat replaced in 2019. That aside, car has been rock solid. As OP sstated, with no modifications and proper maintenance these engines are reliable. Well what about the dreaded timing chain failure?... if you dont use the start/stop function and dont wait till 10k to change your oil then im pretty sure you will be okay.
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      11-01-2020, 12:07 AM   #6
Blk228itex
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2015 with 30k on the odometer no issues other then a faulty thermostat replaced by BMW a few months back.
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      11-01-2020, 06:19 PM   #7
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2016 45k stock drivetrain. Second owner but had my mechanic check thouroughly. All good so far. Only issue I have had is the ac stopped blowing cold on a long trip. Hasn’t happened again, but haven’t taken it on a long trip. Not a DD.
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      11-01-2020, 06:34 PM   #8
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2014 w/ 40k miles. So far so good, just started BM3 stage 1. No issues so far. Was a DD until COVID.
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      11-03-2020, 08:35 AM   #9
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Quote:
Originally Posted by aftercorbu View Post
2016 45k stock drivetrain. Second owner but had my mechanic check thouroughly. All good so far. Only issue I have had is the ac stopped blowing cold on a long trip. Hasnít happened again, but havenít taken it on a long trip. Not a DD.
I heard that is normal on long distances with ac, I guess it's like a defrost cycle.
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      12-30-2020, 06:49 PM   #10
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Quote:
Originally Posted by KennyFSU View Post
Quote:
Originally Posted by aftercorbu View Post
2016 45k stock drivetrain. Second owner but had my mechanic check thouroughly. All good so far. Only issue I have had is the ac stopped blowing cold on a long trip. Hasn’t happened again, but haven’t taken it on a long trip. Not a DD.
I heard that is normal on long distances with ac, I guess it's like a defrost cycle.
nah. the evap coils freeze over on long car rides and lower air flow. solution is a spacer they made for the f30 that also fits f22. moves the temp sensor in the passenger foot well about an inch out and prevents freezing.
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      12-30-2020, 06:54 PM   #11
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I'm at 80k. no major issues, just kept up with the maintenance to prevent grenades!

auto tensioner and belts (2x)
water pump and thermostat
6mt fluid
diff fluid
ofhgs
spark plugs each oil change due to tune (add coils next oil change)
O2 sensor did fail, replaced no issues.


looking for another 80k out of her!

been running jb4 with charge and downpipe for about 30k. no issues there!
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      04-07-2021, 08:37 AM   #12
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I'm at 52k and had a major brake module failure. Bmw had to do the repair and ship in the part from Germany. It was 5400$

Other than that, no issues. But that one really hurt.
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      04-07-2021, 09:33 AM   #13
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Just got to 57k and having the car serviced early tomorrow because it gets driven hard daily. I blew a coolant pump at about 28k; around $3,000 in repair, and also had to have the parts shipped from Germany.

Any things I should look to have replaced or upgraded?
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      04-07-2021, 10:12 PM   #14
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Quote:
Originally Posted by Kemps2Fast View Post
Just got to 57k and having the car serviced early tomorrow because it gets driven hard daily. I blew a coolant pump at about 28k; around $3,000 in repair, and also had to have the parts shipped from Germany.

Any things I should look to have replaced or upgraded?
I highly recommend the P3 OBDII vent gauge to monitor temps. I know itís not a maintenance item, but I think my good fortune with this motor has been by driving it according to its temps. I never drive it until itís up to 70 degrees at the minimum and leave it in comfort mode until 150 degrees.

At 53k, and multiple track days later, all is still well with the N20. I havenít done too much aside from ~4k mile oil changes, all fluids, and filters.

Pre-50k:

- Coolant flush
- oil/filter every 4-5k
- Spark plugs
- Intake filter
- OBDII vent gauge installed
- Transmission fluid

Planned maintenance:

- Spark plugs
- Rod bearings - Because race car.
- Belts
- Belt tensioner
- Coolant flush
- Coolant hoses
- Water pump/ thermostat
- baffled aluminum oil sump

Hopefully staying ahead of these things will keep the motor happy enough to get me to 100k with lots of track time.
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