I have a 2022 Macan S (sub 2k miles) that is my wife's daily driver and on multiple occasions she has experienced an abrupt shake/jolt from the car when navigating a multi-level parking garage at her office.

When operating at a normal and appropriate parking lot speed and rounding the corners at the end of each level she applies some brake and a sharp turn resulting in a sudden "jolt". She describes the "jolt" as if the wheels lock up for a split second and then release.

She has noted that if the brake is not applied during said turn the car will not present the "jolt". This same experience has been noted in other parking lots, but most noticeable at work as it's a routine scenario.

My initial thought is this has something to do with the AWD system, but I have nothing to confirm this being the issue

Prior to this vehicle she drove an Audi S4 in AWD and that vehicle never exhibited the same "jolt" operating in the exact same manor in the exact same parking garage.

Anybody experience this scenario or know what could be causing it?

 

I have experienced the same thing several times on my 2022 S with approx 3000 miles now but the first time it happened the car had few hundred miles.

I’ve noticed the same behavior when driving along a line of parking spots, then slowing down to almost crawl and making a sharp turn while applying brakes in order to park either front in or back in. The jolt is felt while applying brakes at a very low speed and sharp turn not necessarily on full lock but close to it.
To me it felt like something either in the transmission or the transfer case rather than brakes.

 

Do you have PTV+?
I’ve been noticing something similar with my recently delivered S (with PTV+), where really low speed sharp cornering it feels like the differential is completely locking up, which gives the feeling it a jamming wheel. I haven’t narrowed it down yet exactly when though, but low speed turns in the road are not problem, just really slow speed and sharp corners so far… may also be the fact the tires are quite wide on the back too.

 

No, this 2022 Macan S does not have the PTV+ option.

 

So my wife took the Macan S to the local dealer we purchased it from this afternoon and inquired with one of the service advisors who knew right away what she was referring to when she began to explain the issue. In fact, he said he has personally experienced the "jolt" on multiple occasions while driving the Macan's they provide as loaner cars during service. He went on to say he thought it might have something to do with the transmission downshifting at that moment in time causing the "jolt" or sudden braking phenomenon. Appears this is not an isolated issue and as the service representative went on to say Porsche has yet to acknowledge any problem.

I will say the Porsche transmission is set up to maintain high RPMs when possible. I tend to drive in a fashion to allow the car to slow on it's own vs. applying brake when possible and I would say there is a significant amount of engine braking done by the Macan. It's somewhat reminiscent of the Tremec dual clutch transmission I've experienced when driving the new Shelby GT500 that attempts to emulate a manual transmission as it moves down the gears correlative of speed.

 

Typically, when coming to a full stop the shift to 1st gear from 2nd is imperceptible… it feels to me steering angle input has to have something to do with this behaviour. And it definitely doesn’t feel smooth so I’m concerned about transmission (if in fact it turns out to be a transmission downshifting).
I am going to visit my dealer soon and will ask about that for sure.

 

I just traded my 2022 GTS with 3,900 miles in because of this issue. It started the second day I had the car and had a new transfer case installed at 2,500 miles that did not fix the problem. It always happened with slow full turns and on occasion I would get double or triple jolts.

This was my 3rd Macan and the other two never did it. My new car is a 2023 Macan S—only 300 miles on it but no problems so far. I personally think it’s a transmission issue since the new transfer case did nothing. Just my $.02.

 

i hope you didnt take a big depreciation hit on it because of a defect that porsche has acknowledged. I don't know why they can't just fix things like this proactively instead of waiting for the class action lawsuit.

 

I just got this from my friend who has been helping me research this problem. This explains it completely and there is obviously a problem that Porsche knows about...

https://static.nhtsa.gov/odi/tsbs/2022/MC-10217269-0001.pdf

Advanced Technical Information

Bulletin #: 2222 3 Part ID: 3965

95B.III – 2022 Macan Transfer Boxes Shudder/Jerk at Slower Speeds Vehicles Affected

Models

Macan

Revision History

Revision

0

Model Year

2022

Release Date

July 29, 2022
Model Type
VIN Range

Vehicle-Specific Equipment

95B n/a

Original document
All
Changes

Condition

Customer uses adjectives like shuddering, jerking, jolting, lurching, lunging or similar to describe the behavior of the vehicle’s drivetrain at lower speeds. Particularly, this occurs while driving in 2nd or 1st gear in the transmission’s automatic mode with some slight brake application in combination with a greater steering angle input (at or close to ‘full-lock’), travelling at around 10 mph, e.g. while negotiating a parking space or lot. The condition happens in reverse too, and can be disconcerting. There are no fault occurrences associated with the behavior described herein.

Technical Background

ONLY recommended for diagnostic purposes, fixing the degree of locking to a constant between the front and rear drive shafts from the transfer box serves to eliminate the concern. Disconnecting the electrical plug on the transfer box serves to fix or lock the torque ratio (diagnostic purposes ONLY).

Service Information

Please determine if the customer’s complaint is consistent with the description provided in the ‘Condition’ section above, by first operating the vehicle under the described parameters (preferably with the customer). If this issue is consistent, please operate the vehicle under the same parameters with a fixed or constant torque lock in the transfer box, which is possible by disconnecting the electrical plug to the transfer box.

1. If the behavior identified occurs under the parameters described in the ‘Condition’ section above, and improves with unplugging the transfer box, then please DO NOT perform any repairs. This behavior is currently a normal operating characteristic of the drivetrain and is under investigation.
AfterSales
July 29, 2022 Page 1 of 2

Advanced Technical Information

Bulletin #: 2222 3 Part ID: 3965

2. If the customer’s complaint is either not consistent with the condition outlined in this bulletin and/or does not cease when disconnecting the transfer box’s electrical plug, then please continue to diagnose and resolve the complaint.

Warranty

As always, please document the repair completely in PCSS.

For this repair, please code the “cause” as follows: Cause location: 3965 Transfer box Cause symptom: 1126 Jerky gear change

Use the following troubleshooting labor operation
03350050
03350053
51921900
39650199

Search Items
Fault memory read-out
Creation of the VAL
Cover front remove and reinstall Unplug transfer box and test-drive
Transfer box, Macan, shuddering, jerking, jolting, lurching, lunging, transmission

 

from the nhtsa bulletin: The condition happens in reverse too, and can be disconcerting.

would seem like an odd advert....."Drive a Porsche...a disconcerting experience"

 

Has this skip/bump/pop been an issue in anyones ‘23?

This doesn’t happen in our ME 4-matic or the Acura SH-AWD. This Ackerman effect doesn’t sound like something I want to deal with. Dealer visits and manufacturer investigations just aren’t my cup or tea.

 

I have had this happen a bit more recently... it definitely feels weird, like I'm not in 100% control of the car as it happens. Has anybody heard of a wreck occurring because of it?

 

Curious your mileage? I haven’t felt this issue for a long time, I am now at 6,000 miles on my 22GTS and haven’t felt it since mid summer.

 

I got rid of a 2022 GTS because the problem was so bad I couldn't deal with it before this service bulletin from Porsche came out. I have a new 2023 S with 1,500 miles that has a 'slight' jolt problem similar to the 2022 when I turn into a parking space with a full wheel turn at slow speed so this is obviously still an issue. I can live with it on the new car because it has only happened a couple of times but it's still not acceptable IMHO.

 

Hello. My car is a Macan S 3.0 2015. When starting at low speed with the steering wheel turned to the right, vibrations are felt. Stronger when turning right. While driving there is no problem, as well as when maneuvering behind. I would appreciate your advice and opinions on the problem.

 

Transfer case problem?

 

I hope it's not the transfer case, but it's more like that. is there any other test besides the one with disconnecting the management of the transfer case? I’m still 21” summer tyres and garage inside temperature is around 10 degrees. Is it possible this to be some factor?

 

Yup samething happening in my 22 Macan base which has 19 inch tires (225/55/19 & 255/50/19). It's not ackerman effect.

Hopefully Porsche fixes this problem soon

 

Why do you think it is not the Ackerman effect? My suspicion is that there is a trade off in the steering geometry between low speed, very tight turns and high-speed turns with a longer turning radius. While other manufacturers might try to find a happy medium between the two, Porsche might be heavily favoring the handling aspects of high-speed turn radiuses (radii?).

 

Call it what you will, it's related to the front steering geometry and exacerbated by summer rubber.

 

It's interesting you say this because just recently I experienced this same exact binding/slight clunk only while backing out of my driveway on cold mornings with Summer rubber and the wheel cranked to the right. It has only occurred a couple of times just this year, and has only happened while backing out of my driveway on cold mornings....never while driving forward, and my GTS only has 10,000 miles on it.

Normally by this time of year I would have already swapped out the Summer rubber for my Winter wheel set (same 20" sized Porsche Spyder wheels with OEM Scorpion Verde A/S tires), but since I'll be trading in my 2020 GTS next week hopefully, and since the snow up my way has held off so far, I didn't bother switching over to the Winters.

I've never felt/heard this clunk when the weather was warm on my Summer tires, nor have I experienced it in the past with my A/S tires in the colder weather.

 

ICE Macan will be dead and the new version rides on new platform (PPE) so Porsche won't ever be fixing this problem. As a side note, I have never experienced it in my Macan but did in my GLC 63 so I feel the frustration.

 

For me, every tire replacement has been the same, oem summers and I became accustomed to the front end hop and harsh ride.

Fast forward, I now have Scorpion Verde all-seasons and it has been night and day. These tires offer a better ride and the front end hop is almost not noticeable.
The thing about summer tires is that the compound becomes hard.

 

I have 21 inch rims and a gravel driveway with a hairpin bend and you can see the scallops in the drive from the Macan on the inside line.
I have always just considered it to be normal

 

Hello. After inspection in local car service. As per the mechanic the vibrations of my car is caused from damage engine mounts. They suggested to replaced. The delivery of OEM Engine mounts is 10 days, that’s why I will wait until after new year.
Anyone to have experience with problems with engine mounts.
From several days time to time, when I stop on traffic light vibrations appear, but if I put on Park position vibrations stopped.
Some guesses! Thank tou

 

Hello. After inspection in local car service. As per the mechanic the vibrations of my car is caused from damage engine mounts. They suggested to replaced. The delivery of OEM Engine mounts is 10 days, that’s why I will wait until after new year.
Anyone to have experience with problems with engine mounts.
From several days time to time, when I stop on traffic light vibrations appear, but if I put on Park position vibrations stopped.
Some guesses! Thank tou

Hello, my case was solved by engine mounts replacing. The both were damaged.

 

7 years ago the UK program Fifth Gear discovered that hooning a turbo around the track.

that skip to that discovery

I've taken my Macan to a track attack event, timed autocross/road coarse that's about 1.5 mile in length with some tight turns. I noticed it a bit on one of those hair pins.

 

Please re examine the video Sir, the title of this topic is related to some observing front end hop and skip on tight turns whereas the video highlights rear end hop on high speed corners where the three drivers are absolutely belting the car around fairly open corners - see, I got a higher G figure than you! If you look closely you will see that the inside rear wheel becomes light around the apex after the weight transfer has moved the weight onto the outside front, leaving the one rear outer wheel to carry the majority of the rear cornering force - hence the reason why the Macan carries a wider rear wheel with more static negative camber.

The topic is suggesting the front end being pushed too fast into a very tight turn making the front end skip/hop as the weight transfer combines with the front end geometry to make the tyres work too hard. On full lock at standstill, the outer front tyre is at around 3 degrees negative camber while the inner wheel is at 1 degree positive camber, of course this varies for roll as the weight transfers but inevitably, there is a point where the front tyres are not square (flat) to the road and the steering and tractive forces are being handled largely by the outer tyre alone.

I have not felt the front end skip or hop, but have found extreme wear on the inner edges of both front tyres (wear maybe related to the aforementioned wide camber change plus my drives abrupt angles encountered at the point of full lock as I enter or leave the garage). I have noted rarely, in places like car parks where the ramps and turns are tight, that I can feel the rear PTV+ cycling and gripping (braking) the inner rear wheel to aid the turn.

 

PSI you run from your comment above? Thanks.

 

I just got a 2023 Macan S with summer tires. The grip is AMAZING. On the street, at low speed, this thing has more grip than my GT3 with Cup 2 R tires. However, it hops/bounces like crazy instead of sliding. Is there any solution for this? It would be so much fun if it just slid like a normal car (I know it's an SUV lol).

 

Page 1, Post #7 by Grim: Ackerman Effect. A post from the U.K.: Happens on all cars with wide tyres. The Ackermann effect describes where the inner wheel in a turn describes a smaller radius than the outer. If you imagine a tyre on a full lock, and a number of lines on the circumference from inner to outer, the sections of tyre travel a different distance during the turn. Something has to give and the tread blocks slip/judder to compensate which, as mentioned above, is more noticeable when the rubber is cold and less flexible. That's my understanding anyway!

 

Go get the s/w update to remedy this. It works, I suppose by electronic manipulation of the differential to allow each wheel to turn at different speeds.

I had the update and haven't had an issue since.