[Cross00]

Any enlightenment on 2025 M340i only exhaust sound clips? Stock and aftermarket. If tuned, which tune and how much? Stock sounds on the 25’ definitely would not be as loud as 2020’s for what I’ve seen on videos.

So far, the dealer recommended a local shop where they “know” what to do before and after warranty, I’m waiting for a list of options but so far they’re recommending Dinan exhaust with a Racechip or Dinan tune and Dinan cold air intake, claiming 80hp gains but last I heard from them was that this isn’t yet available for 2025’s.

[jg4c]

Originally Posted by Cross00

Just received my 25’ M340i, when I asked about the break in period the dealer told me that is only for the M cars and not required for M340i… any thoughts?

Read your manual. I’ll bet it says otherwise.

[hrf]

If you care about your car then follow brake in procedures. It is not complicated keep below 4K rpm for 1200 miles, vary rpm’s, then gradually increase and no full throttle, launch control and be gentle with car.

[RoGo330i]

Originally Posted by Cross00

Just received my 25’ M340i, when I asked about the break in period the dealer told me that is only for the M cars and not required for M340i… any thoughts?

Hi OP:

First, congratulations! Please post some pics when you get a chance.
Second, here is a thread from last year addressing your question. Basically, of course there’s a break-in period, and it will be outlined in the manual. Why would the dealer say that? That makes no sense.
https://g20.bimmerpost.com/forums/sh....php?t=2051744

Enjoy your ride, and have a lot of fun — especially after the breaking in!

[MM70]

It's 1200 miles for that engine. I have a '25 M440 (same engine). It's still fun to drive and I'm only 500 miles from break in now. I'll change the oil at 1200, and you can't go full throttle until you hit 2K on the odometer according to the manual.

HRF also pointed me in the right direction and I checked the manual as well.

[XxSullyxX123]

enough of an enthusiast to contribute to a forum, but not enough to open up the manual?

[Cross00]

Is not about following or not the manual, is about what the dealer said and anyone’s experience not doing it. (And yes, I also suggest to follow the manual)

[Cross00]

Originally Posted by RoGo330i

Hi OP:

First, congratulations! Please post some pics when you get a chance.
Second, here is a thread from last year addressing your question. Basically, of course there’s a break-in period, and it will be outlined in the manual. Why would the dealer say that? That makes no sense.
https://g20.bimmerpost.com/forums/sh....php?t=2051744

Enjoy your ride, and have a lot of fun — especially after the breaking in!

Thank you and will do, I haven’t even got a chance to take any pics.

[gnyce]

the manual says 1,200 miles. could of been a miscommunication with the dealer because the m's require an oil and differential fluid change at 1200 miles.

just take it "easy" the first 1,200 miles... or do what you want. your choice.

[Cross00]

By the way, see screenshot of the manual break in section

[Montaver]

Warm it up and send it

[Cross00]

Originally Posted by Montaver

Warm it up and send it

[MM70]

Originally Posted by XxSullyxX123

enough of an enthusiast to contribute to a forum, but not enough to open up the manual?

Give the guy a break, he's excited!! This forum is exactly the resource he needs. I'm sure I've asked some dumb questions as well since I joined...

[jg4c]

Originally Posted by MM70

Give the guy a break, he's excited!! This forum is exactly the resource he needs. I'm sure I've asked some dumb questions as well since I joined...

Actually, the manual is the only resource anyone needs.
It’s full of useful information for any new car owner.

Many ignore it, because it’s boring.

It’s also a good resource to confirm,
or question, what some dumb ass at the
dealership tells you.

Enjoy your new car, OP!

[MidnightLight]

Originally Posted by RoGo330i

Basically, of course there’s a break-in period, and it will be outlined in the manual. Why would the dealer say that? That makes no sense.

Probably the dealer meant that there's no break-in service included in the maintenance plan for the non-M cars. But of course there's still a break-in period regardless.

[arentz07]

Originally Posted by MidnightLight

Probably the dealer meant that there's no break-in service included in the maintenance plan for the non-M cars. But of course there's still a break-in period regardless.

I don't know. If they meant that there's no service, they should probably... I don't know, be more specific? It is not as if break-in period is some random, off-the-wall question. A lot of new cars explicitly require break-in periods, and it should be expected that owners will ask about it.

Dealers, and especially sales reps, need to do better. If they don't know the answer to a question, they simply should not answer it, or instruct the buyer on where to find the answer, or even something like "I don't know offhand, but I will get back to you."

[zazzau]

Even your tires and stereo require a break-in; let alone the vehicle engine/mechanics. It’s best to follow what the manual calls for. I can’t imagine your dealership saying otherwise; it’s likely they were referring to break-in service and you probably misunderstood.

[Cross00]

Originally Posted by zazzau

Even your tires and stereo require a break-in; let alone the vehicle engine/mechanics. It’s best to follow what the manual calls for. I can’t imagine your dealership saying otherwise; it’s likely they were referring to break-in service and you probably misunderstood.

**Definety not a misunderstanding, I asked clearly to both the Sales rep and the “tech” guy about not exceeding the 4500 RPM and so on, the sales guy said it is only for M cars and the M340i are broken in at the factory while the tech guy said similar but adding the M cars are actually limited and have to be unlocked after the 1200 miles to be able to exceed the 4500rpm. And yes, I find it very odd, hence asking around for similar experiences. I’m still following the manual and I’ve been as gentle as possible, currently sitting at 650 miles.

[sikotic]

90% of the time the dealers have absolutely no clue what they are talking about.

[jg4c]

Originally Posted by sikotic

90% of the time the dealers have absolutely no clue what they are talking about.

90% is being extremely generous.