Mine just feels like it has a tight diff or different turning arcs for the front wheels when using a lot of lock - particularly when going right out of a junction first thing in the morning. The front tyres seem to skip or hop to get back in sync with each other. Do they all do this? It can make for jerky and mechanically unsympathetic quick exits from junctions. Cheers
DieselE
The issue doesn’t tend to reveal itself until there is a bit of wear on the tires, sometimes as little at 7000km. All at very low speed eg. Turning into a parking spot
Merc GLC63s does it too. Apparently it doesn’t do it on LHD models but when built as RHD it does.... some compromise must have been made in the steering geometry. They don’t do it new and the sales guys don’t tell you that it will happen, they leave the service guys to face into the issue.
Hi Everyone
I'm living in Dublin in Ireland and have a 2017 Macan S Diesel which is by faaaaaar the best car I have ever had - and I have had a few !!
One thing that is causing some concern is that when reversing, or turning very slowly, a 'grinding' noise can be heard. It is like a shuddering, which does not occur at higher speeds i.e. when driving normally. Someone said it may be the wide tyres (Pirelli P Zeros)
Also, recently, and after just replacing the back tyres, there is another disconcerting clicking when changing up thru the gears, when giving it a little wellie. I tried this under the changes to the Chassis (sport and sport extra) but it really only changed it a little. I wonder if it might be a problem, or perhaps (no that I think of it) a little dirty fuel - what they used call 'pinking'
All advice gratefully received
Thanks
I'm living in Dublin in Ireland and have a 2017 Macan S Diesel which is by faaaaaar the best car I have ever had - and I have had a few !!
One thing that is causing some concern is that when reversing, or turning very slowly, a 'grinding' noise can be heard. It is like a shuddering, which does not occur at higher speeds i.e. when driving normally. Someone said it may be the wide tyres (Pirelli P Zeros)
Also, recently, and after just replacing the back tyres, there is another disconcerting clicking when changing up thru the gears, when giving it a little wellie. I tried this under the changes to the Chassis (sport and sport extra) but it really only changed it a little. I wonder if it might be a problem, or perhaps (no that I think of it) a little dirty fuel - what they used call 'pinking'
All advice gratefully received
Thanks
I’ve noticed what I instinctively can describe as a tire scrub even though I know there is already a formal definition of tire scrub. Let me describe.
This occurs immediately after I start moving the car while turning. Like when I am backing or forwarding out of a parking space and making a 90 deg turn at the same time. There is a short, staccato grunt which can be heard and felt, coming from the tire(s). If there is a painted parking line that a tire crosses, the grunt/scrub happens even more obviously. It only happens once per incident.
Anyone else experience this? I am assuming it has to do with the wide tires doing a very short skip (scrubbing) on the ground to relieve tension caused by the car moving in a direction different than the tire direction for a brief moment. (I have 21” wheels, so 265/295 tire widths).
This occurs immediately after I start moving the car while turning. Like when I am backing or forwarding out of a parking space and making a 90 deg turn at the same time. There is a short, staccato grunt which can be heard and felt, coming from the tire(s). If there is a painted parking line that a tire crosses, the grunt/scrub happens even more obviously. It only happens once per incident.
Anyone else experience this? I am assuming it has to do with the wide tires doing a very short skip (scrubbing) on the ground to relieve tension caused by the car moving in a direction different than the tire direction for a brief moment. (I have 21” wheels, so 265/295 tire widths).
I had this & it went away when I got new Michelin tires.
It felt as if coming from the rear but must have been coming from the fronts.
It felt as if coming from the rear but must have been coming from the fronts.
It’s called the ‘Ackerman’ effect....a Google search will bring up many examples of this phenomenon, but it’s nothing to worry about, and is usually only felt when the tyres are cold.
@woodypup: Search!
Read the following - ESPECIALLY, rules 10 and 12:
www.macanforum.com
and the posts here:
www.macanforum.com
Read the following - ESPECIALLY, rules 10 and 12:
North-East
Discuss Meets, Get Togethers, Or Activities. Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, & Vermont
www.macanforum.com
and the posts here:
North-East
Discuss Meets, Get Togethers, Or Activities. Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, & Vermont
www.macanforum.com
I created an account to comment on this!!
I put my 2022 macan s in the shop after 4000 miles after the same issue you are having. Before I left, I test drove with the lead technician. I demoed by turning left to a parking spot and after the thump, the technician went “yup”. He said it was more “profound” in the 2022 model year than others. It apparently is not an issue… they said they won’t be doing anything on it but hopefully it gets reported to Porsche hq and have this issue resolved!!! I wonderwhat they will tell me on Monday regarding this issue.
I put my 2022 macan s in the shop after 4000 miles after the same issue you are having. Before I left, I test drove with the lead technician. I demoed by turning left to a parking spot and after the thump, the technician went “yup”. He said it was more “profound” in the 2022 model year than others. It apparently is not an issue… they said they won’t be doing anything on it but hopefully it gets reported to Porsche hq and have this issue resolved!!! I wonderwhat they will tell me on Monday regarding this issue.
My ‘22 S does this occasionally when making a slow tight turn. It feels like the front wheels are deciding whether or not to release traction.
I don’t really worry about it.
I don’t really worry about it.
I get a bit of this as well, it almost feels like losing traction or something. I assumed it was just a bit of a hiccup with the programming.
This happens on our 2022 base as well at low speeds when turning into parking spots usually. I figured that it was normal and had something to do with torque transfer/anti slip/automatic braking on the all wheel drive system. I’m usually taking a very sharp turn into a parking spot and there is often loose gravel or debris in parking spots so I haven’t worried about it much. I’d be interested to hear if Porsche figures out how to improve this on the OP’s Macan.
Ackerman angle. Google it. Search. Its going to get worse in cold weather if you have summer tires.
www.macanforum.com
Does your front end hop and skip on tight turns?
Mine just feels like it has a tight diff or different turning arcs for the front wheels when using a lot of lock - particularly when going right out of a junction first thing in the morning. The front tyres seem to skip or hop to get back in sync with each other. Do they all do this? It can make...
www.macanforum.com
Mine does the same thing. Apparently Porsche is looking into it. You can try disconnecting the plug on the transfer box and see if this problem goes away.
It's funny that Porsche claims "This behavior is currently a normal operating characteristic of the drivetrain and is under investigation."
If it's "normal" then why bother with the investigation.
It's funny that Porsche claims "This behavior is currently a normal operating characteristic of the drivetrain and is under investigation."
If it's "normal" then why bother with the investigation.
I've experienced something similar in my 22 GTS. Its happened on 3 occasions making a left turn into a parking spot. it feels like something with the power steering. I don't have PS+ so the steering is quite heavy and on those occasions it was like a PS+ function kicked in temporarily with a thump with the steering becoming noticeably lighter for a fraction of a second just before full lock. It doesn't happen all the time and I'm not too worried about it at this point but shall monitor it.
Yep. Mine too. 22 GTS. They checked it out and said it was a "normal operating characteristic" per bulletin.
Nothing normal about a loud thunk while making a turn. I'm sure at this point they know what it is and are doing the math on the potential recall/repair cost. Something tells me they're just gonna sweep this one under the rug.
Nothing normal about a loud thunk while making a turn. I'm sure at this point they know what it is and are doing the math on the potential recall/repair cost. Something tells me they're just gonna sweep this one under the rug.
Notice the same on a 22 base loaner with 650 miles on it when I picked it up. Had it for a month and I drove 350 miles. It did this numerous times taking a hard left at slow speed like pulling into a parking space, This does not happen with my 16S.
I have only noticed an issue like this on MY22 GTS while full lock turning but usually on very hot black top or brand new hot black top. I don’t believe it is an issue.
It's the transfer box.
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).
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).
My 2016 Turbo on 21's Conti's did this all the time on reverse.....more often when tires were not warm.
Recently changed to CONTI DWS 06+, GONE.....no matter what temperature.
I put it down to rubber scrubbing....
Recently changed to CONTI DWS 06+, GONE.....no matter what temperature.
I put it down to rubber scrubbing....
Mine does this occasionally and I am a former mechanic and now an engineer, but take that with a grain of salt. I believe it is simply the tire to rim interface that, during tight turns, is causing the tire to flex a bit and "pop" horizontal to the rim, but not breaking the bead.
Think of taking a corner extremely fast where the tire actually breaks it's bead to the rim. Now, imaging this happening slow in a tight turn, but because it is slow, the tire flexes and pops but does not break the bead. It's a hypothesis. There does not seem to be any mechanical noises produced so I am really not concerned.
Think of taking a corner extremely fast where the tire actually breaks it's bead to the rim. Now, imaging this happening slow in a tight turn, but because it is slow, the tire flexes and pops but does not break the bead. It's a hypothesis. There does not seem to be any mechanical noises produced so I am really not concerned.
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
