Updated car differentials

Artemis · 10-03-2016, 07:58 PM

Extracted several posts from this thread reporting about the 'soda can crunch noise' issue for a dedicated thread (compilation): http://f87.bimmerpost.com/forums/sho....php?t=1310964

MarkR262 · 10-04-2016, 12:18 AM

Quote:

Originally Posted by CrashFL

Right there with you!! My '17 has the Conti's.... And I'm not so fond of them. I've experienced the "oh sh!t what part of my car is dragging on the pavement" noise once in the 1,500 miles I've driven. It was early on, and it hasn't repeated, but it was pretty unpleasant.

Anyway, double bummer.

Other than that... I absolutely LOVE this car.

(But other than that, how did you like the parade, Mrs. Kennedy?)

The f'ing car is awesome.
Even with the Conti's and crunching beer cans.

CrashFL · 10-04-2016, 07:26 AM

Quote:

Originally Posted by MarkR262

The f'ing car is awesome.
Even with the Conti's and crunching beer cans.

Truth!

Artemis · 10-04-2016, 08:16 AM

Quote:

Originally Posted by MarkR262

The f'ing car is awesome.
Even with the Conti's and crunching beer cans.

Quote:

Originally Posted by CrashFL

Truth!

"Honey, sometimes you erratically fart, but all in all you're great nevertheless !"

gtr · 10-04-2016, 08:44 AM

Quote:

Originally Posted by MrBucket

I got a 2017 with PSS and no carplay...

I got a 2017 no PSS and carplay...

Benzima · 10-04-2016, 08:50 AM

Quote:

Originally Posted by gtr

I got a 2017 no PSS and carplay...

What Conti tires they put on M2?

MrBucket · 10-04-2016, 09:01 AM

Quote:

Originally Posted by Benzima

What Conti tires they put on M2?

Sport Contact 3 which weren't good tires 10 years ago when they were Conti's top tire in the category.

Benzima · 10-04-2016, 09:07 AM

Quote:

Originally Posted by MrBucket

Sport Contact 3 which weren't good tires 10 years ago when they were Conti's top tire in the category.

Ouch.

No I understand the frustration some can have when some cars are equipped with the best in class PSS.

MarkR262 · 10-04-2016, 11:04 AM

Quote:

Originally Posted by M3 Adjuster

There has been no evidence to indicate with any confidence that a 2017 being delivered has a good differential.

I called my dealer's service department this morning. They want me to drop the car off after work. I wanted to have the issue on record and don't expect them to resolve it during this visit.

It'll be interesting to hear the "party line"

MarkR262 · 10-05-2016, 02:42 PM

Quote:

Originally Posted by MarkR262

I called my dealer's service department this morning. They want me to drop the car off after work. I wanted to have the issue on record and don't expect them to resolve it during this visit.

It'll be interesting to hear the "party line"

Well, I just got the call.
The party line is they couldn't duplicate the problem.
They are aware of a situation where a stone could get wedged up in the brake rotor and caliper (or wherever) and they did the fix for that.

He wouldn't acknowledge anything about the differential or that any problem existed. I called bullshit and told him it was quite well known but that my goal for this visit was to get the problem on record. If/when the noise gets worse and the diff either fries or becomes more repeatable, BMW will have to deal with it then.

I told him I was disappointed that he and BMW had to pretend there wasn't an issue when we all know there is something going on here.

Kinda reminds of me politicians not answering the question that's posed and going off to invent their own interpretation of reality.

Bummer.

Well at least my car gets washed.

David1 · 10-05-2016, 03:35 PM

This will be just how the dealers would say the rattling turbos on the N54 was normal.

MarkR262 · 10-07-2016, 07:01 AM

Quote:

Originally Posted by MarkR262

Well, I just got the call.
The party line is they couldn't duplicate the problem.
They are aware of a situation where a stone could get wedged up in the brake rotor and caliper (or wherever) and they did the fix for that.

He wouldn't acknowledge anything about the differential or that any problem existed. I called bullshit and told him it was quite well known but that my goal for this visit was to get the problem on record. If/when the noise gets worse and the diff either fries or becomes more repeatable, BMW will have to deal with it then.

I told him I was disappointed that he and BMW had to pretend there wasn't an issue when we all know there is something going on here.

Kinda reminds of me politicians not answering the question that's posed and going off to invent their own interpretation of reality.

Bummer.

Well at least my car gets washed.

Got a call from the Service Shop Foreman. He did acknowledge there is/was a differential problem with a certain group of vehicles built over a specific time period. Mine didn't fall into that category.

They weren't able to replicate the noise but did install the screen on the dust shield near the brake rotors to keep stones from making that other awful noise.

After discussing the situation with him I'm satisfied with the response and the current situation. IF something were to go wrong with the differential, I have absolutely no concerns about this particular dealer fixing the problem. It'll be taken care of.

+1 for the Dealer.

GoSlow2GoFast · 10-07-2016, 10:03 AM

Quote:

Originally Posted by MarkR262

Got a call from the Service Shop Foreman. He did acknowledge there is/was a differential problem with a certain group of vehicles built over a specific time period. Mine didn't fall into that category.

They weren't able to replicate the noise but did install the screen on the dust shield near the brake rotors to keep stones from making that other awful noise.

After discussing the situation with him I'm satisfied with the response and the current situation. IF something were to go wrong with the differential, I have absolutely no concerns about this particular dealer fixing the problem. It'll be taken care of.

+1 for the Dealer.

Is there a part number for the brake "screens" do you know?

MarkR262 · 10-09-2016, 10:47 PM

Quote:

Originally Posted by GoSlow2GoFast

Is there a part number for the brake "screens" do you know?

I'm not aware of a part number nor did I ask.

I was told the screens are epoxied to the dust shield after removing the wheel, brake rotor and caliper. I can see it when I look through the wheel spokes.

reppucci · 10-11-2016, 08:55 PM

Just got a message from my dealer.

They want me to call so they can order the parts for my rear differential and schedule the diff replacement.

May 30 2016 build.

Anything I should know before I go through with this?

Will keep all posted

Benzima · 10-11-2016, 08:57 PM

Quote:

Originally Posted by reppucci

Just got a mesage from my dealer.

They want me to call so they can order the parts for my rear differential and schedule the diff replacement.

May 30 2016 build.

Anything I should know before I go through with this?

Will keep all posted

Make sure they order the bolts!

MRufo · 10-23-2016, 07:09 PM

Crunching, grinding and clunking...and the horn doesn't work��
2017 built last week of July.
No call yet!

reppucci · 10-23-2016, 07:23 PM

Quote:

Originally Posted by Benzima

Make sure they order the bolts!

The one's on recall?

Benzima · 10-23-2016, 08:37 PM

Quote:

Originally Posted by reppucci

Quote:

Originally Posted by Benzima

Make sure they order the bolts!

The one's on recall?

All of them when replacing rear differentials...

AWF87M2 · 10-24-2016, 02:58 PM

Anyone know if this diff recall only applies to cars in. North America? Are cars in Europe or Asia affected?

ried · 10-24-2016, 06:03 PM

Quote:

Originally Posted by M3 Adjuster

Your car is a tweener anyway because the first few months of 17 production don't have CarPlay but iirc it's been announced that a retrofit is available for the early 17s that were shipped without. Don't quote me on that ..

CarPlay is not standard equipment for MY 2017. It's a $300 option.

MarkR262 · 10-24-2016, 10:37 PM

Quote:

Originally Posted by MarkR262

Got a call from the Service Shop Foreman. He did acknowledge there is/was a differential problem with a certain group of vehicles built over a specific time period. Mine didn't fall into that category.

They weren't able to replicate the noise but did install the screen on the dust shield near the brake rotors to keep stones from making that other awful noise.

After discussing the situation with him I'm satisfied with the response and the current situation. IF something were to go wrong with the differential, I have absolutely no concerns about this particular dealer fixing the problem. It'll be taken care of.

+1 for the Dealer.

My car goes in for the 1200 mile break-in service tomorrow morning. I still get the random soda can crunch sound. Probably 10 times over the past month. Typically happens at low speed turning into a driveway or road. Both accelerating or slowing down.

I plan on mentioning it to them just to keep it on their radar.

There is something going on with the diff. My car is an Aug 30 build.

10-03-2016, 07:58 PM	#639
Artemis Moderator 29325 Rep 13,093 Posts Drives: BMW M2 Competition Join Date: Jun 2011 Location: Belgium iTrader: (0)	Extracted several posts from this thread reporting about the 'soda can crunch noise' issue for a dedicated thread (compilation): http://f87.bimmerpost.com/forums/sho....php?t=1310964 __________________ ///M is art ↔ Artemis
	Appreciate 0 Quote

10-05-2016, 03:35 PM	#649
David1 Brigadier General 814 Rep 3,949 Posts Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: Columbus, OH iTrader: (1)	This will be just how the dealers would say the rattling turbos on the N54 was normal. __________________ 2021 M2 Comp Sunset Orange \|Black with orange Stitching Dakota Leather\|Executive Pkg\|DCT
	Appreciate 0 Quote

10-11-2016, 08:55 PM	#653
reppucci First Lieutenant 340 Rep 310 Posts Drives: 04A6 2.7T(DD), 16M2 BSM MT EP Join Date: Dec 2013 Location: Western CT iTrader: (0) Garage List 2016 M2 [0.00] 1995 M3 [0.00] 2006 Mini Cooper S ... [0.00] 2004 A6 2.7T [0.00] 1994 325is [0.00]	Dealer called to set up rear diff swap Just got a message from my dealer. They want me to call so they can order the parts for my rear differential and schedule the diff replacement. May 30 2016 build. Anything I should know before I go through with this? Will keep all posted Last edited by reppucci; 10-23-2016 at 07:24 PM..
	Appreciate 0 Quote

10-23-2016, 07:09 PM	#655
MRufo Private First Class 36 Rep 123 Posts Drives: M2 Join Date: Oct 2016 Location: Gaia iTrader: (0)	Crunching, grinding and clunking...and the horn doesn't work�� 2017 built last week of July. No call yet!
	Appreciate 0 Quote

10-24-2016, 02:58 PM	#658
AWF87M2 Major 827 Rep 1,287 Posts Drives: BMW Join Date: Apr 2014 Location: USA iTrader: (8)	Anyone know if this diff recall only applies to cars in. North America? Are cars in Europe or Asia affected?
	Appreciate 0 Quote