Official Thread: Report Here if you Spun your Crank Timing Gear Hub.

[MDriver2000]

Originally Posted by FSociety

Any details on how you were driving? mode? speed?

When I spun it, I was just pulling into a gas station in comfort mode. However, I did some freeway pulls a few hours before and it ran fine. I believe when an engine goes, it has already passed a point of no return and it can happen anytime (with basically no load to the engine or at a specific trigger point such as a 6 to 3 kickdown).

Interesting news - my hub spun again, this time while stock. Similar codes as before, although I believe my first spin was more severe than the second. BMWNA is not covering the repair.

[weavingtraffic]

Originally Posted by Rotzy

Hello and congratulations on the M4!

Reading through these threads will make you crazy. I highly doubt your crank hub has slipped with the symptoms you are mentioning. Most have had timing related codes along with very difficult starting/poor running when they experience a SCH.

As far as the other issues, if your still on original spark plugs, that could be the source of your occasional rough idle. Wonky DCT operation is not uncommon, although I have not experienced what your describing. Either way, since you said your still under warranty, go and let the dealer sort it out.

Somehow missed this post, thanks for the kind words. I did go crazy for a bit. Have tuned the car with BM3 and have been running CS+. Car went in for brake issue and checkup at dealer, no issues. False alarm and I'm still ok. Just going to cross my fingers, drive the car and if something happens it happens. No sense in worrying. Loving the chassis already!

[jpy1980]

Originally Posted by MDriver2000

When I spun it, I was just pulling into a gas station in comfort mode. However, I did some freeway pulls a few hours before and it ran fine. I believe when an engine goes, it has already passed a point of no return and it can happen anytime (with basically no load to the engine or at a specific trigger point such as a 6 to 3 kickdown).

Interesting news - my hub spun again, this time while stock. Similar codes as before, although I believe my first spin was more severe than the second. BMWNA is not covering the repair.

Whoa! Again? Could this be an issue with the actual install from your first spin?

[FSociety]

Originally Posted by MDriver2000

When I spun it, I was just pulling into a gas station in comfort mode. However, I did some freeway pulls a few hours before and it ran fine. I believe when an engine goes, it has already passed a point of no return and it can happen anytime (with basically no load to the engine or at a specific trigger point such as a 6 to 3 kickdown).

Interesting news - my hub spun again, this time while stock. Similar codes as before, although I believe my first spin was more severe than the second. BMWNA is not covering the repair.

Why they're not covering?

Originally Posted by jpy1980

Whoa! Again? Could this be an issue with the actual install from your first spin?

My thoughts as well

[turbo8765]

Is this happening to cars with both carbon and steel driveshafts?

[4everkidd]

Originally Posted by turbo8765

Is this happening to cars with both carbon and steel driveshafts?

What would a driveshaft have to do with it?

I heard cars with inconel exhaust are immune to crank hub failures.

[maximumpsi]

Originally Posted by MDriver2000

When I spun it, I was just pulling into a gas station in comfort mode. However, I did some freeway pulls a few hours before and it ran fine. I believe when an engine goes, it has already passed a point of no return and it can happen anytime (with basically no load to the engine or at a specific trigger point such as a 6 to 3 kickdown).

Interesting news - my hub spun again, this time while stock. Similar codes as before, although I believe my first spin was more severe than the second. BMWNA is not covering the repair.

Where are you located? It is not uncommon to have another failure after it happens once(when using stock components).

[MDriver2000]

Dealer found the previous bootmod tune and vehicle was marked as external influence for the 2nd spin and repair was not covered, so I had to pay out of pocket for it.

I got rid of the car so I won't disclose much about it.

[1azycat]

2017 DCT comp pack with BM3 and Ps2, was fine for 1 year+ when I didnt use kickdown. Used kickdown once, immediately spun the crank hub.

[Rotzy]

Originally Posted by 1azycat

2017 DCT comp pack with BM3 and Ps2, was fine for 1 year+ when I didnt use kickdown. Used kickdown once, immediately spun the crank hub.

Just to clarify, you are running Pure Stage 2 turbos? What BM3 map are you on? Do you have a CBC or any other fix installed?

[SpearoAndy]

I received these codes

180001 ******* ******** detected
180101 ******* ******** detected bank2
165014 intermediate shaft sensor (high pressure pump), plausibility, signal edges: Locatio
135808 Valvetronic servomotor, position sensor: short circuit or open circuit
121001 TMAP sensor, short circuit to B+
123701 No Description Found
123703 No Description Found
120408 Reduced power mode

Got the same codes a few times over two days. Car went into limp mode but was fine after turning off. No rough idle. I got these codes going WOT. Car is F82 ZCP 6 speed. Never had a money shift.

The odd thing is I got these codes after picking car up from dealer for routine work. I posted to N54 and Terry responds with "spun crank hub?" That has me worried. Any opinions?? Thanks

[FSociety]

Originally Posted by SpearoAndy

I received these codes

180001 ******* ******** detected
180101 ******* ******** detected bank2
165014 intermediate shaft sensor (high pressure pump), plausibility, signal edges: Locatio
135808 Valvetronic servomotor, position sensor: short circuit or open circuit
121001 TMAP sensor, short circuit to B+
123701 No Description Found
123703 No Description Found
120408 Reduced power mode

Got the same codes a few times over two days. Car went into limp mode but was fine after turning off. No rough idle. I got these codes going WOT. Car is F82 ZCP 6 speed. Never had a money shift.

The odd thing is I got these codes after picking car up from dealer for routine work. I posted to N54 and Terry responds with "spun crank hub?" That has me worried. Any opinions?? Thanks

Get the lithuanian hub https://www.bm3tuning.com/m3m4m2-comp/insane-crankhub

[sicck_m4]

Originally Posted by SpearoAndy

I received these codes

180001 ******* ******** detected
180101 ******* ******** detected bank2
165014 intermediate shaft sensor (high pressure pump), plausibility, signal edges: Locatio
135808 Valvetronic servomotor, position sensor: short circuit or open circuit
121001 TMAP sensor, short circuit to B+
123701 No Description Found
123703 No Description Found
120408 Reduced power mode

Got the same codes a few times over two days. Car went into limp mode but was fine after turning off. No rough idle. I got these codes going WOT. Car is F82 ZCP 6 speed. Never had a money shift.

The odd thing is I got these codes after picking car up from dealer for routine work. I posted to N54 and Terry responds with "spun crank hub?" That has me worried. Any opinions?? Thanks

Bring it back to the dealer. Everything is datalogged. Let the dealer know when you got it back it immediately threw those codes.

[FrankMstein]

I guess no one has SCH in the last 1.5 years!?! What is this "kickdown" everyone is referring too, a manual DCT down shift?

[Shubacca]

Originally Posted by FrankMstein

I guess no one has SCH in the last 1.5 years!?! What is this "kickdown" everyone is referring too, a manual DCT down shift?

It's mashing the gas past the detent at the bottom of the pedal throw to force a downshift to the lowest allowable gear.

[mdrobc13]

Just got a 2016 M4 DCT and now watching closely as 1st mod was BM3 Stage 1 to go along with car which already had a Remus exhaust installed at purchase. No other issues. No sure if doing this mod (updated crank housing) is preventive maintenance or waste of $$ especially with some of the comments and also TPG concerns here also. ????

[hellokitty]

Originally Posted by mdrobc13

Just got a 2016 M4 DCT and now watching closely as 1st mod was BM3 Stage 1 to go along with car which already had a Remus exhaust installed at purchase. No other issues. No sure if doing this mod (updated crank housing) is preventive maintenance or waste of $$ especially with some of the comments and also TPG concerns here also. ????

Definitely not a waste of money. S55 is a glass motor. If you are running stage 1, you'll probably be okay. Stage 2 and aggressive driving, you'll want a upgraded hub and cbc.

Definitely need it if running any sort of ethanol blend tunes.

[Dutch Devotion]

09.11.2019 M2C 13000km bone stock.

Mine did it during a drift from a roundabout, the moment the wheels grabbed and the katapult feeling was there it was a mild limb and a strange single boom from the exhaust. Did not bother too much as I was having AK motion OPF delete errors all the time.

Next ride started, bit of a rough start, like spinning 3 times longer than normal.
Then due to being extremely busy for 5 months, I did not manage to take the M2 for a spin. So I took her again, rough start, all fine no errors. After 3km, engine still cold, the limb was there again.

Brought her to the workshop I come for detailing and there was a familiair face, the ex workshop manager of my BMW dealer. He now works for the detailer who is scaling up exponentially, offering full service to luxury cars. Let him do his thing, crank hub.

So BMW guarantee, decided no to do that as they repair and just repeat their design flaw again, with a second time me not being lucky again, definitely after any warranty period. So we had her fixed, ordered eventuri intakes, and flashed a stage 1 bootmod on the car. Downpipes with sportkats will arrive soon too, ready for a stage 2 flash. Some things have to be I guess.

What an epic design flaw that connection is, and I say that being a bolting specialist......they knew it, as that friction material should have never been accepted in a design review at the start of this engine engineering. That friction material is a quick fix after they discovered the problem relatively late, probably during testdrives with reveal dates already announced. bmWankers.