[BMWILUVU]

Originally Posted by NormanConquest

As far as I'm aware the only update is
1. A rockguard to protect the radiator
2. Improve fuel delivery system
3. Tweaks to be able and comply with EU standard which reduces the overall engine power.

The core engine is still the same.

The crankshaft barring issue that you mention all occur on manual something that not even an option anymore for the b58

I recall the crankshaft problem happened within 6 months of the B58's release and it was fixed asap. There has been nothing since. Musashi is on opiods.

[kern417]

Originally Posted by BMWILUVU

I recall the crankshaft problem happened within 6 months of the B58's release and it was fixed asap. There has been nothing since. Musashi is on opiods.

Like I said before, give the TU1 a year and it'll be full of revisions too, whether it's design or manufacturing/supplier related fixes. If Mr. Sushi had any actual automotive engineering experience, he'd know these recalls and revisions don't stop. Even after EOP, my bulletproof N52 vehicle had a new recall a few years ago.

But nah. Instead he got "inside scoops" from a guy at BMW. K.

[cfm56d7b]

While (thankfully) 2 miles away from home, "low coolant" warning appeared. Mileage: 24.8K miles. According to the July 2019 inspection report at 22.8K miles or 2K miles prior, coolant levels were OK.

My vehicle - 2017 BMW 440i Gran Coupe - was built in July 2016. Still under warranty for one year.

I haven't checked the coolant level yet but will inspect in a few hours when the car is 100% cold. Will be mixing BMW coolant 50/50 with distilled water. Visiting local dealer on Monday AM.

Based on everyone's input from this thread ...

- If the coolant level is low in the intercooler tank, I will work with dealer and BMW NA to replace the turbocharger. Based on my research, early production B58 engines experienced this problem.

Does anyone have a copy of the repair order stating "coolant leaking into the turbo bearing. turbo replaced?" Will be grateful.

- If the coolant is low in the main tank, will ask the dealer to pressurize the cooling system.

What was replaced if a leak was found? The tank? The cap?

My hope is that the head gasket is OK considering low mileage.

[BMWILUVU]

Originally Posted by cfm56d7b

While (thankfully) 2 miles away from home, "low coolant" warning appeared. Mileage: 24.8K miles. According to the July 2019 inspection report at 22.8K miles or 2K miles prior, coolant levels were OK.

My vehicle - 2017 BMW 440i Gran Coupe - was built in July 2016. Still under warranty for one year.

I haven't checked the coolant level yet but will inspect in a few hours when the car is 100% cold. Will be mixing BMW coolant 50/50 with distilled water. Visiting local dealer on Monday AM.

Based on everyone's input from this thread ...

- If the coolant level is low in the intercooler tank, I will work with dealer and BMW NA to replace the turbocharger. Based on my research, early production B58 engines experienced this problem.

Does anyone have a copy of the repair order stating "coolant leaking into the turbo bearing. turbo replaced?" Will be grateful.

- If the coolant is low in the main tank, will ask the dealer to pressurize the cooling system.

What was replaced if a leak was found? The tank? The cap?

My hope is that the head gasket is OK considering low mileage.

If Musashi had anything to go on, its the coolant disappearing. My dealer pressure tested my system and it held. I hope its just the cap.

[cfm56d7b]

Sharing an update with 4 pictures.

Main tank - clearly needs coolant. I will add it later today and measure how much was added. The white residue around the reservoir neck suggests that cap could be faulty.

Small tank - nearly full and that's encouraging. I was concerned that coolant was leaking through the turbocharger bearing. I will still ask the dealer to inspect it.

EDIT: Exactly one liter of 50/50 coolant and distilled water was added.

[TheBingoBalls]

I'm all for people's opinions but damn is there a bunch of BS in here...

[vinzcast21]

Originally Posted by cfm56d7b

Sharing an update with 4 pictures.

Main tank - clearly needs coolant. I will add it later today and measure how much was added. The white residue around the reservoir neck suggests that cap could be faulty.

Small tank - nearly full and that's encouraging. I was concerned that coolant was leaking through the turbocharger bearing. I will still ask the dealer to inspect it.

EDIT: Exactly one liter of 50/50 coolant and distilled water was added.

i wouldnt add that and bring to dealer for them to "see" and replace turbos if required


on another note, my car was built on August 2015 and never had coolant warning whatsoever

[cfm56d7b]

Update from the dealer. Main tank reservoir cap was replaced. The dealer determined no coolant has been lost through the turbo charger bearing. Will continue to closely monitor coolant loss in the future.

[neonnblack]

Originally Posted by Jahjaman

That's 100% pre-ignition detonation. Or pinging.

Low quality fuel.

Test it with higher quality fuel, or if you can't get better fuel - use octane booster.

Are you running stock tune?

Quick update. No dealer as it's not under warranty anymore.

The sound persists, though it's not pinging as logs show almost no timing correction.
Still at a loss as to what it is. I've completely went through the underside of the car when i fixed the bowden cable clip. Nothing loose, no witnesses marks of something touching something else, etc.

And a quick update update.
Though not a b58 problem the clip that holds the bowden cables up broke and caused a 'death rattle' iin the car. 8 dollar part, 2 or so hours of work (exhaust, heat shielding removed and the gas tank needed to be lowered to fix it) and it's better.

Also im starting to smell burn oil on occasion. I haven't even tried to locate from where yet, but I'm guessing, unsurprisingly, it'll be the VCG.

[Astute]

I've had some low coolant problems, as others have mentioned. My local SA told me to just bring it by periodically to top it off in the service lane.

Weird thing happened this morning though. I hadn't driven the car in a day or 2 and when I started the car this morning, the cold start didn't seem to function as it typically does. I also got a "Drivetrain malfunction: cont. driving possible" telling me to take it to a servicer. I let it run for a minute or so without any issues. So I turned it off and left it for a few minutes to reset. I came back, turned it on and the cold start functioned normally and no longer had the drivetrain malfunction. I ended up taking it to work this morning due to traffic being lighter and took it easy - no issues on the drive.

Any thoughts?

[cfm56d7b]

Do you have a code scanner to examine stored fault code?

[Astute]

Originally Posted by cfm56d7b

Do you have a code scanner to examine stored fault code?

Nope, sure don't, but on the plus side, I'm still under warranty for the next few months. I'll prob swing it by my SA tomorrow. I just wanted to see if anyone here had a similar experience or any insight.

[340iNL]

I got a strange problem. My car (340i xdrive with MPPSK) is rough on idle while the engine is warm. I'm sure it didn't to this the first zero to 10.000 km (now i'm at 34.000 km). The MPPSK was fitted at 20.000 km.

I also started to run bootmod3 stage 1 at 24.000 km.

A few weeks ago I did a Datalog to check if I could find anything off with help from the forums to read the logs. In the beginning, I didn't read my logs. I discovered a few weeks ago on a recent datalog that KNOCK was detected. It turns out even with the first run (at 24.000 km first install) with bootmod3 stage 1 I had KNOCK DETECTED, but I never checked it at that time. So I guess I already experienced knocks without Bootmod3.

I went to my dealership for new tires and asked them if the rough idle (which is happening even without the bootmod3 stage 1, just with stock mppsk map) was a problem, they said it's normal.

I emailed PROTUNINGFREAKS, they suggested me to change my spark plugs and gap them correctly. My dealership told me I shouldn't change my plugs before 50.000 km.
I didn't tell them about Bootmod3 map because I needed a new amplifier that died randomly and got it replaced with warranty with no problems (luckily they didn't discover the DME unlock).

Therefore I'm not sure I understand the logs correctly (i get ''10'' as value with knock detected in CSV export). Maybe someone here can have a look on my logs?

I'm quite worried that the detected knocks will harm my engine in the long run. But besides the rough idle it pulls and drives like before.

Edit: I use ron 98 (shell v power) fuel only

[NormanConquest]

Minor issue at 65+k

66000

View post on imgur.com

[vinzcast21]

Originally Posted by NormanConquest

Minor issue at 65+k

66000

View post on imgur.com

we had same issue but mine didnt throw CEL. seems like the evap system goes bad AFTER the recall

[kern417]

I can't tell what actually failed though. It almost reads like a check valve or something in the line broke, so they replaced the whole line?

[G.Newt]

Originally Posted by NormanConquest

Minor issue at 65+k

66000

View post on imgur.com

See my thread on the issue: https://f30.bimmerpost.com/forums/sh....php?t=1627387

At first, they replaced the evap line, but the CEL came on as soon as I drove it out from the dealership. It wasn't until they actually replaced my fuel tank breather valve, did the 191C02 code go away.

[NormanConquest]

Originally Posted by G.Newt

See my thread on the issue: https://f30.bimmerpost.com/forums/sh....php?t=1627387

At first, they replaced the evap line, but the CEL came on as soon as I drove it out from the dealership. It wasn't until they actually replaced my fuel tank breather valve, did the 191C02 code go away.

CEL is off at the moment if it pops up again I'll let them know.

[RoIIouT]

Apologies if this has been address before (I could not find anything).
I have a 2016 340i xdrive with a catless VRSF and Bm3 Stg 2 93.

Everything was running very good until I changed my spark plugs last Saturday. I am running NGK 94201 gapped to 0.022' - 0.023'.

Occasionally, when I am rolling on the throttle in about 2nd gear around ~5k RPM I get a sudden loss of power and hear very loud backfire from the downpipe area. This is extremely hard to reproduce as I have not found a consistent way to make it happen. I'm hoping maybe it has something to do with the tune and it's not a larger issue. I haven't tried flashing back to stock, but I may do that later this week and drive on it for sometime to see if the issue is resolved.
If it's the sparkplugs, why the hell would my car be running worse on (technically) better plugs?

Also, sometimes when pulling the car feels hesitant and jerky, but I'm think this could be related to putting on fresh snow tires? I don't really notice any rpm drop like in the other issue.

I appreciate any input.
Thanks.

[BMWILUVU]

Originally Posted by RoIIouT

Apologies if this has been address before (I could not find anything).
I have a 2016 340i xdrive with a catless VRSF and Bm3 Stg 2 93.

Everything was running very good until I changed my spark plugs last Saturday. I am running NGK 94201 gapped to 0.022' - 0.023'.

Occasionally, when I am rolling on the throttle in about 2nd gear around ~5k RPM I get a sudden loss of power and hear very loud backfire from the downpipe area. This is extremely hard to reproduce as I have not found a consistent way to make it happen. I'm hoping maybe it has something to do with the tune and it's not a larger issue. I haven't tried flashing back to stock, but I may do that later this week and drive on it for sometime to see if the issue is resolved.
If it's the sparkplugs, why the hell would my car be running worse on (technically) better plugs?

Also, sometimes when pulling the car feels hesitant and jerky, but I'm think this could be related to putting on fresh snow tires? I don't really notice any rpm drop like in the other issue.

I appreciate any input.
Thanks.

Torque limit pulling timing? There may be protections the DME is applying in cold weather conditions. Are BM3 maps properly accounting for the winter effects? Did you check for codes?

[RoIIouT]

Originally Posted by BMWILUVU

Torque limit pulling timing? There may be protections the DME is applying in cold weather conditions. Are BM3 maps properly accounting for the winter effects? Did you check for codes?

Thanks for the response.

It's funny you say that. It's only happened twice, and the second time it happened, I told myself "this FEELS like the engine is trying to protect itself from something". However, I'm not sure of what that something is. I don't have a code checker, but I didn't get any warnings or anything on the dash.

Maybe I will reach out to Bm3 and see if this is something they have heard of before and can recommend further steps to take.

[OzBMR]

Originally Posted by RoIIouT

Apologies if this has been address before (I could not find anything).
I have a 2016 340i xdrive with a catless VRSF and Bm3 Stg 2 93.

Everything was running very good until I changed my spark plugs last Saturday. I am running NGK 94201 gapped to 0.022' - 0.023'.

Occasionally, when I am rolling on the throttle in about 2nd gear around ~5k RPM I get a sudden loss of power and hear very loud backfire from the downpipe area. This is extremely hard to reproduce as I have not found a consistent way to make it happen. I'm hoping maybe it has something to do with the tune and it's not a larger issue. I haven't tried flashing back to stock, but I may do that later this week and drive on it for sometime to see if the issue is resolved.
If it's the sparkplugs, why the hell would my car be running worse on (technically) better plugs?

Also, sometimes when pulling the car feels hesitant and jerky, but I'm think this could be related to putting on fresh snow tires? I don't really notice any rpm drop like in the other issue.

I appreciate any input.
Thanks.

If you have the original plugs put them back in and see if that resolves the problem and then you can determine if it is related to the different plugs.