ozziegt

2015 Turbo. 80k miles. I've noticed a stronger than usual vibration at idle and the PDK in Drive. I thought it was just me being paranoid but it's noticeable enough to be annoying sometimes. I also noticed that it gets much better when I put the PDK in Neutral. Now I find this very strange because I had just assumed the clutch was fully disengaged when stopped, but it seems like maybe not?
What could it be? I noticed that the lower control arm on the drivers side is getting torn, so I am going to replace that. But I don't think it could cause this issue?
No codes
I've run a couple of tanks of fuel injector cleaner through it. I think maybe it got better but it could be totally psychological.
Plugs were replaced at 77k
I noticed some tears in the torque arm bushing which keeps the engine from rotating under load. I replaced that. No difference.
Battery was replaced 1k miles ago.
Only thing I can think of at this point could be a transmission mount or something but how do I check? I don't know where they are.

Any suggestions or help is appreciated!

BIG smoke

Worn suspension would not effect idle vibration when not moving. Engine mounts and transmission mounts? Sure.
I did my plugs in the fall, by time and millage under the manual. I swear it idled smoother, though the plugs looked perfect.

PSEE

I had an engine mount replaced at ~35K. I thought it strange to have failed at such a low mileage...

The question would be how to diagnose a bad engine mount in a Macan.

...and, IIRC, the front subframe was removed to do the replacement (under warranty thank goodness)


Good luck!

ozziegt

Yeah I've heard replacing engine mounts sucks on these so I'm not even inclined to check if it's an engine mount; its not bad enough for me to replace one. I wonder how I can inspect the transmission mounts though.

BIG smoke

Test the motor mounts and transmission mounts?
one person in the car, window down, hood open.
foot on brake, light throttle? Would that not torque the engine?

ozziegt

I don't think it would. There is a torque arm on the passenger side of the engine that prevents the engine from rotating under load.

ozziegt

Dealer diagnosed excessive engine movement under load when stopped. They advised me to replace the torque arm that I had just replaced 6k miles ago. I did that without improvement, and so they have concluded it needs a new engine mount. 9 hours of labor to replace both. I hope my extended warranty company doesn't give me a hard time about replacing it! It is supposed to be covered. Kind of a bummer. The tech was certain it's the torque arm because he said he has never seen a Macan need a new engine mount.

malahhaor

Just got 2017 GTS with 55k miles. extremely noticeable vibration at idle when starting the car in cold weather. After a min or two vibrations turn in to droanning as if i have bad aftermarket exhaust. After a short drive when car warms up gets allot better but at stop light still feel allot of vibration and when navigating parking.
Today when temps are mid 40s its not nearly as bad.
Also my horn stopped working yesterday, thank god for CPO so will be taking it in to check out both issues. Will report back.

CarGuyNVA

Older Cayennes (esp. 957 series) had a lot of issues with dead horns due to a design which allowed water intrusion over time. Hope the Macans don’t start exhibiting this same issue as they acquire age/mileage.

malahhaor

So im getting engine mounts and horn replaced. also the upper engine torsion bar had cracked bushings as well.

///Bruce

Keep us in the loop, please. I'm curious if after all the work done and getting done it solves your problem. GL...

malahhaor

sorry forgot about the thread. had engine mounts replaced as well as upper torsion bar. car idles nice and smooth. a touch of vibration at times but nothing to be writing home about.

Msztab

ozziegt- did you end up solving the vibration. I’m having the same issue where there is a vibration when in drive but stopped. Just changed motor mount but it did not improve the vibration.

ozziegt

Yes, replaced both motor mounts and it's been great since. The passenger mount was totally shot.

Msztab

Good to hear!