[NanerPowered]

Argh! 😡 One week to the day post-delivery after waiting almost 4 months on my 2024 x40i with Msport and check engine light came on tonight. Code reader shows
034b MIL request: Yes
Cda6 MIL request: No
8080 MIL request: No
Quick search doesn’t tell me what the codes mean, and seems the first one all in red on the code reader is most concerning. Thinking I may need to take my husband’s M2 on a trip we have to go in tomorrow (approximately 350 miles round trip) …

Any advice welcome! Planning to take it in Monday morning, but in the mean time … help!

[TurtleBoy]

Welcome to the forum. Could be a number of things but most like the stuck valve issue that others are having. Your dealers will be able to track it down. Have a safe trip.

[aaaaaaaaaz]

What X5 do you have? 40i? 50e? m60i?

[NanerPowered]

Originally Posted by alanzyy

What X5 do you have? 40i? 50e? m60i?

🤦*♀️ I’ll edit to add - x40i

[aaaaaaaaaz]

Originally Posted by NanerPowered

🤦*♀️ I’ll edit to add - x40i

Then it wouldn't be the battery valve - it is 50e specific.

For 40i a few people has been complaining random drivetrain failures. Could also be anything else.

[NanerPowered]

Originally Posted by alanzyy

Then it wouldn't be the battery valve - it is 50e specific.

For 40i a few people has been complaining random drivetrain failures. Could also be anything else.

Thanks! Guess we will see if it’s still there tomorrow morning, and take the M2 if so 😵*💫 ugh! Wasn’t expecting to be having to go to dealer for an issue!!

[tacosavage]

thats so sad to hear, i just picked up my 50e earlier today and i am stressing out knowing that its very likely my check engine light will come on as well. after spending close to 96k with all the addons this is quite frankly unacceptable.

[NanerPowered]

Originally Posted by tacosavage

thats so sad to hear, i just picked up my 50e earlier today and i am stressing out knowing that its very likely my check engine light will come on as well. after spending close to 96k with all the addons this is quite frankly unacceptable.

💯

Hopefully it’s the worst of it though and they get it figured out and fast!

[Heavyd]

I'm already stressing and I haven't got my 50e yet Probably end of August. But my dealer didn't know of any issues...

[rogerramjetx5]

Originally Posted by Heavyd

I'm already stressing and I haven't got my 50e yet Probably end of August. But my dealer didn't know of any issues...

No point worrying about something you can’t control. I’ve had mine for 2 months and 1300 miles with no issues. It seems the cooling valve was only some cars built in May, the airbag seems to only affect a few cars and I think a couple have had issues with transmissions.

Try not to lose sleep over it, you’re going to love it

[rexus300]

I am at 4k miles with the 50e and I havent seen the engine light come back on since I cleared the error code at 800 miles 2 months ago. I wouldn't stress about it. These cars are complicated but way superior and well built then those we drove 20-30 years ago.

[Heavyd]

Originally Posted by rogerramjetx5

No point worrying about something you can’t control. I’ve had mine for 2 months and 1300 miles with no issues. It seems the cooling valve was only some cars built in May, the airbag seems to only affect a few cars and I think a couple have had issues with transmissions.

Try not to lose sleep over it, you’re going to love it

My production date was mid June. So hopefully the bad batch was by then used

[NanerPowered]

Originally Posted by Heavyd

My production date was mid June. So hopefully the bad batch was by then used

My build date was 7/13/23

[Heavyd]

Originally Posted by NanerPowered

My build date was 7/13/23

So they are still using the bad parts batch?

[aaaaaaaaaz]

Originally Posted by Heavyd

So they are still using the bad parts batch?

You are assuming there is a batch of part that was bad; however we do not know if that is the case. It also could be the part has design flaw that make it prone to premature failure; if that is the case only updating the part itself will fix the issue. This was the case for MY18-19 G01 active grill shutter issue.

[WagonFan]

Originally Posted by alanzyy

You are assuming there is a batch of part that was bad; however we do not know if that is the case. It also could be the part has design flaw that make it prone to premature failure; if that is the case only updating the part itself will fix the issue. This was the case for MY18-19 G01 active grill shutter issue.

That’s probably the concern of many. Mine is still to be build (in a week).
Could mean you can get stranded any time. And potentially replace it multiple times: In kind replacement and eventually new design replacement.
Hopefully it’s sorted out soon and spare parts made available.

[LuvMyE92]

Originally Posted by NanerPowered

💯

Hopefully it’s the worst of it though and they get it figured out and fast!

Good luck. The wife's 24 x4.0 had a CEL within a few weeks of delivery. Dealer can't fix it. They think it's the exhaust valve, which if it is what I think it is, is no big deal, but have escalated it to corporate who are, so far, stumped.

The wife is pissed.

And the other issue, they can't replicate, so now I have to take time off of work to bring it in and demonstrate.

I've owned enough BMWs to know that this is all SOP, but it's still annoying.

[Heavyd]

Originally Posted by alanzyy

You are assuming there is a batch of part that was bad; however we do not know if that is the case. It also could be the part has design flaw that make it prone to premature failure; if that is the case only updating the part itself will fix the issue. This was the case for MY18-19 G01 active grill shutter issue.

Wouldn’t a design flaw mean that every LCI eventually will fail?
I did a testdrive with a 50e with some 10.000km and the dealer said they had no issues. I also saw no CEL

[aaaaaaaaaz]

Originally Posted by Heavyd

Wouldn’t a design flaw mean that every LCI eventually will fail?
I did a testdrive with a 50e with some 10.000km and the dealer said they had no issues. I also saw no CEL

Hmm, if you are into industrial engineering a bit - assumption is every part may eventually fail, either within or far beyond its useful service life; what we evaluate is for a particular sample, when does it fail; and aggregate individual cases into a large sample pool, figure out what is the distribution of time of failure.

I do not have these aggregate data, so everything is just an example. In this case, we may see the probability this part fail prior to reaching 1000 miles is quite high - but it does not say every part will fail by then. Maybe some will fail at delivery, some fail around a few hundreds miles, some at a a few thousands miles, and some may never fail within its practical service life.

One simple example is light bulb - you can buy a knockoff one for $0.5 or a nice brand name one for $5. Both of them may fail within 10 year of usage; however you'd expect to see rate of failure at 10 year usage for $0.5 at much higher rate than $5 ones.

Regarding to if the problem is design vs. manufacturing, we really don't know. Say for example this part requires a 8kg/cm torque servo to operate correctly; if BMW made wrong calculation and decided to put a servo motor rated 6kg/cm here it is a design issue; if BMW calls for 10kg/cm servo but some bad batches were only in reality capable for <7kg/cm, then it is a manufacturing "bad batch"