[xx.002]

2019 540i
Bought at 12k miles
BM3 OTS Stage 2+ 93 at 14K miles
OTS e50 on weekends

At 100k now no problems just maintenance.

Pic was a month ago showing 96k miles

[Saturn340i]

I got my 2017 manual 340i with MPPSK at 28k. Now at 65k. Car has been running perfectly up until now. Water pump was leaking coolant out of the weep hole I changed the water pump and it stopped leaking. After changing the water pump I did some spirited driving and coolant exploded out of the main reservoir and was leaking everywhere through the cap. I noticed my heater was blowing cold air aswell which makes me think the thermostat is bad. I’m going to check the thermostat this week to see if it’s bad but as of right now I cant go WOT without coolant overflowing through the cap. Has anyone experienced this issue before it would be really helpful to hear from another b58 owner thx.

[G.Newt]

Originally Posted by Saturn340i

I got my 2017 manual 340i with MPPSK at 28k. Now at 65k. Car has been running perfectly up until now. Water pump was leaking coolant out of the weep hole I changed the water pump and it stopped leaking. After changing the water pump I did some spirited driving and coolant exploded out of the main reservoir and was leaking everywhere through the cap. I noticed my heater was blowing cold air aswell which makes me think the thermostat is bad. I’m going to check the thermostat this week to see if it’s bad but as of right now I cant go WOT without coolant overflowing through the cap. Has anyone experienced this issue before it would be really helpful to hear from another b58 owner thx.

First, would use a BMW code scanner and start there. Sounds like you may still have air in the system.

[ErkanTR16]

2018 at 102K

[Stockb587955]

2016 340i with 111k miles currently at the body shop due to a raccoon that wanted to play chicken with me. Got it with 30k miles. Jb4 till 40k miles then tu pump and mhd till 70k. Pure 800 and tu pump with tune till 90k now ds2 pump tuned by Doug Newton maxed out injectors. Been running e40 mix since I got on mhd.

[F30_Paul_]

2017 BMW 340i xDrive w/ factory MPPSK

[vcx]

Does people change the connecting rod bearings at some point, as preventive maintenance (as it's needed for the n54 or s65 engines) ?

[samspiderman3125]

Originally Posted by vcx

Does people change the connecting rod bearings at some point, as preventive maintenance (as it's needed for the n54 or s65 engines) ?

not needed for b58s

[McBobby Jr]

Originally Posted by vcx

Does people change the connecting rod bearings at some point, as preventive maintenance (as it's needed for the n54 or s65 engines) ?

Coated bearings from factory on this platform, I’ve yet to see a B58 need bearings even when they shoot a rod or piston out the block pushing 800+hp.

[cfm56d7b]

Originally Posted by colin2211

194k miles still running strong.....

Wow. Remarkable. Soon you will be in the position to mention quarter-of-a-million-miles milestone.

[cfm56d7b]

My 2017 440i GC has 50K miles.

No issues other than main coolant tank has been replaced (a known issue).

Just replaced these items as a preventive measure:

- Transmission fluid
- Rear differential fluid
- Spark plugs and coils
- Accessory belt and tensioner

[cfm56d7b]

My 2017 440i GC has 50K miles.

No issues other than main coolant tank has been replaced (a known issue).

Just replaced these items as a preventive measure:

- Transmission fluid
- Rear differential fluid
- Spark plugs and coils
- Accessory belt and tensioner

[Nickski06]

Originally Posted by cfm56d7b

My 2017 440i GC has 50K miles.

No issues other than main coolant tank has been replaced (a known issue).

Just replaced these items as a preventive measure:

- Transmission fluid
- Rear differential fluid
- Spark plugs and coils
- Accessory belt and tensioner

This is a “most miles” thread, not least miles 😊 Why do you only have 50k on an almost 8 year old car? Not driving your car to keep miles off is like not having sex with your girlfriend so she’s tight for the next guy.

[AshtonPJT]

95k