[04S]

Let me start by saying I know there is no rev limiter which is removed, and there is no extra power which is unlocked during the break in service.

I had the service done yesterday and the car feels a little more lively for some reason. I understand there is nothing unlocked, but, did anyone have the same sense after their service ?

I am guessing it is purely psychological, but I can't help wondering if anyone else noticed anything similar.

[Digitalprty]

It’s just placebo effect. Didn’t feel any different to me.

[jmg]

This is my 4th M car. I never noticed anything besides the piece of mind to start pushing the engine. There is nothing to "unlock". It's just a fluid check.

[fzr100098]

In my case it was oil/filter, alignment, and rear diff oil change - all no charge - thank You BMW.

Dealership experience was excellent and they sent me a review video of work performed

[wjones14]

I had mine done on 12/27/2024. The receipt says they changed the oil and rear axle fluid, replaced the axle drain plug (PN # 33-11-7-525-064), and did a multi-point inspection.

I have a dash cam and watched some of the footage later. At the beginning of the service, the tech connected a cable from his diagnostic machine to the engine bay and left it hooked up for at least 10 minutes. Maybe that was just clearing the Break-In Notification, or...

Before it went in the service area, I checked with the service manager to confirm the rear axle fluid would be changed. He said it would, and said they would also unlock something in the car's computer that would allow full performance. I'm skeptical about that, but didn't argue with him.

[fzr100098]

The bikes (S1000RRs) have a break in rev limit - a little surprised M cars do not

[X_Drive]

Originally Posted by wjones14

I had mine done on 12/27/2024. The receipt says they changed the oil and rear axle fluid, replaced the axle drain plug (PN # 33-11-7-525-064), and did a multi-point inspection.

I have a dash cam and watched some of the footage later. At the beginning of the service, the tech connected a cable from his diagnostic machine to the engine bay and left it hooked up for at least 10 minutes. Maybe that was just clearing the Break-In Notification, or...

Before it went in the service area, I checked with the service manager to confirm the rear axle fluid would be changed. He said it would, and said they would also unlock something in the car's computer that would allow full performance. I'm skeptical about that, but didn't argue with him.

Your assumption of the technician connecting your vehicle to BMW's diagnositic system is correct. The the vehicle is required to be connected to ISTA to have the Break-In Serivce deactivated.

He was probably in the engine bay area to place your vehicle on the service battery charger, while they performed the Fault Code Survey.

[X_Drive]

Originally Posted by 04S

Let me start by saying I know there is no rev limiter which is removed, and there is no extra power which is unlocked during the break in service.

I had the service done yesterday and the car feels a little more lively for some reason. I understand there is nothing unlocked, but, did anyone have the same sense after their service ?

I am guessing it is purely psychological, but I can't help wondering if anyone else noticed anything similar.

Technically, there should be a difference since the engine and rear differential oils used during the break in are replaced. Not like "1000000hp unlock," difference, but a subtle, "Hey the car feels a little smoother," difference.

Oh, also to add, there is nothing unlocked during the Break-In Service. All that happens is that the Break-In Service is deactivated in the vehicle's CBS via ISTA and recorded in the vehicles E-Service booklet.

[techwhiz1]

Originally Posted by fzr100098

The bikes (S1000RRs) have a break in rev limit - a little surprised M cars do not

Me too.

I know for a fact, my S1000RR would not rev above 6k or so.

Its been a while so I don't remember exactly the number.

They could do it very easily. But then, you would have a forum full of people asking " why did they cripple my car?".

[RockCrusher]

Originally Posted by X_Drive

Your assumption of the technician connecting your vehicle to BMW's diagnositic system is correct. The the vehicle is required to be connected to ISTA to have the Break-In Serivce deactivated.

He was probably in the engine bay area to place your vehicle on the service battery charger, while they performed the Fault Code Survey.

Yep. The diagnostics computer is probably connected to the car in the cabin using the OBD2 connection. With a variety of cars over the years since my '96 Mustang GT -- the first of my cars with OBD2 -- while I have watched many a tech connect a diagnostic computer to the car via the in cabin OBD2 connector I have *never* seen one connect it to the car at any other place.

As part of the service the diagnostic computer downloads tons of saved data. Years ago with my Porsche cars I asked about this -- at the time I was writing automotive test software so I had a real interest in this data downloading -- and the techs told me it is pages and pages and pages. At some point the data was viewable but later Porsche changed things and the vast majority of the data came out of the car and went directly -- electronically -- to the factory. The tech had access to only a very limited portion of the data.

[RockCrusher]

Originally Posted by 04S

Let me start by saying I know there is no rev limiter which is removed, and there is no extra power which is unlocked during the break in service.

I had the service done yesterday and the car feels a little more lively for some reason. I understand there is nothing unlocked, but, did anyone have the same sense after their service ?

I am guessing it is purely psychological, but I can't help wondering if anyone else noticed anything similar.

Noticed it with my M2 and with my M8. It is psychological. That happens at least in my case being quite good about adhering to the break in guidelines very soon after break in service I venture into the heretofore forbidden RPM and throttle zones and oh my when given the whip does the engine get up and go!

I actually experienced this with no break in service with my 2023 MINI JCW. I bought it in Loveland CO and drove it 873 miles home. On the way home I adhered to the break in guidelines. The 2nd day as the miles climbed over the 500 mile threshold the engine was running better. No on the road removal of any performance limiting nannies just the engine breaking in. Once home I continued to observe break in guidelines until break in miles were reached and after I had the car in for an early oil/filter service.

[TheSiege]

You are correct (as everyone else says). I had my 1200 mile service last week, and while I can have more fun with the car now, there's no difference if I drive it the same way as before (kindly and <4k RPM). It's all placebo / the fact that you can now use more throttle and more revs. Happy driving!

[techwhiz1]

Originally Posted by RockCrusher

Noticed it with my M2 and with my M8. It is psychological. That happens at least in my case being quite good about adhering to the break in guidelines very soon after break in service I venture into the heretofore forbidden RPM and throttle zones and oh my when given the whip does the engine get up and go!

I actually experienced this with no break in service with my 2023 MINI JCW. I bought it in Loveland CO and drove it 873 miles home. On the way home I adhered to the break in guidelines. The 2nd day as the miles climbed over the 500 mile threshold the engine was running better. No on the road removal of any performance limiting nannies just the engine breaking in. Once home I continued to observe break in guidelines until break in miles were reached and after I had the car in for an early oil/filter service.

This is what folks should feel or observe.
As things wear in, the engine should rev more freely and overall feel like it's not working so hard as friction during wear in is reduced.

[fzr100098]

Actually the piston ring seal should improve during break in, that's what results in minor power increase

Wear under load isn't reduced

[two_three_two]

no. its just that you dont notice as you pull past 5k and the car builds boost after break in. i was pretty disappointed with the car until after the RiS.... those extra 2200 RPM make all the difference.

[ScottyRyan2019]

I bet you don't notice a difference at all if you don't abide by the break-in recommendations. 🫢

[///MoT]

At the dealership right now for my break in service. They're saying it takes 2-3 hours. Really? How long did it take for you guys when you had yours done?


-Tom

[04S]

Originally Posted by ///MoT

At the dealership right now for my break in service. They're saying it takes 2-3 hours. Really? How long did it take for you guys when you had yours done?


-Tom

About that long

[aerobod]

2 hours estimated for my while-I-wait service, done in 90 mins.

[torentmonkey]

Wth are they doing this long for an engine and diff oil change ? Anything else they do besides maybe a diagnostic read?

[///MoT]

They were done in less than 90 minutes.

I'm all about "under promise, over deliver" but that time estimate was ridiculous.

Will try out another dealer's service when it's time for the first 10K oil/filter change.