SURVEY: Panamera 971 Vibration
03-28-2024, 05:05 AM
#46
Possible that is resonance frequency problem. Temperature is important for tires and the resonance frequency is different.
Last edited by Marcus13190; 03-28-2024 at 05:06 AM.
03-28-2024, 05:14 AM
#47
I had both high speed balance and road force balance done - no fix from either. Getting to wit’s end as the dealer sent the car back to me after a “satisfactory road test “ and the shake is still very much there - every bit as bad as before. Most maddening was when, feeling defeated, I took the car to another dealer to have it appraised and they sales manager told me that after driving it he felt I needed new tires …I don’t.
sigh.
sigh.
So have you guys gone down the root? Not saying its going to be the issue here, but worth checking.
03-28-2024, 06:22 AM
#48
It's strange. But I have the same feeling it's the air suspension that is cousing the over-sensitivity off the car for any vibration. Are there known cases for solving this kind of problem by replacing the air suspension? I remember there was a same kind of problem with the BMWE39 Touring.
03-29-2024, 07:14 PM
#49
Vibration/rattle from rear seat at high speed
Panamera 971 GTS
2019
32’000km
Vibration coming from the rear seat, getting worse at high speed (>140km/h), sent for two years for inspection at my local dealership, but they didn’t find anything under the car.
1 year ago I’ve written a thread in this forum, and find out that it was a rear seat underbody cover fault, in particular, the fixing screws were unable to tighten the covers because they’ve got a vertical gap that at high speed, make them bounce. I know that this will not solve everybody’s problem, but hope that will help.
Great things from Italy!
2019
32’000km
Vibration coming from the rear seat, getting worse at high speed (>140km/h), sent for two years for inspection at my local dealership, but they didn’t find anything under the car.
1 year ago I’ve written a thread in this forum, and find out that it was a rear seat underbody cover fault, in particular, the fixing screws were unable to tighten the covers because they’ve got a vertical gap that at high speed, make them bounce. I know that this will not solve everybody’s problem, but hope that will help.
Great things from Italy!
03-29-2024, 11:30 PM
#50
Rennlist Member
Mootz;
I tried the following the other day. Car sat on high for two days. My hw ramp is 1.5 miles away. Terrible bouncing.
next day I set suspension to low. Car sat for 24 hrs, bounce was not noticeable, I will try this experiment again this week.
Another observation, after an hour plus road-trip, no bounce.
Note to others, this problem seems to be an AWD system,. 4 hybrid use electric motor for front drives, therefore does not have same front axle and diff arrangement as AWD ICE
I tried the following the other day. Car sat on high for two days. My hw ramp is 1.5 miles away. Terrible bouncing.
next day I set suspension to low. Car sat for 24 hrs, bounce was not noticeable, I will try this experiment again this week.
Another observation, after an hour plus road-trip, no bounce.
Note to others, this problem seems to be an AWD system,. 4 hybrid use electric motor for front drives, therefore does not have same front axle and diff arrangement as AWD ICE
Last edited by Norge911; 03-31-2024 at 08:54 PM.
05-28-2024, 03:39 PM
#52
2020 Panamera 4
05-28-2024, 03:45 PM
#53
Same
Numerous Panamera 971 owners have reported experiencing vibrations at highway speeds, particularly around 57mph. If you're facing this issue, you can find more details and join the discussion in the "CPO issues, what to do?" thread on Rennlist: https://rennlist.com/forums/panamera...hat-to-do.html
The vibration or oscillation doesn't appear to be related to tires or wheels. Instead, it's most noticeable in the floor and seat, rather than in the steering wheel or brake pedal. This problem seems to primarily affect the 4WD models and is intermittent, varying depending on road conditions and the distance the vehicle has been driven.
To gather more information about this issue and understand how widespread it is, owners are encouraged to share their experiences by responding with the following details:
• Year of your Panamera
• Model of your Panamera
• Mileage and age of the vehicle when you first noticed the vibration
• Any additional descriptions or comments regarding your specific experience with the vibration issue.
Hopefully by sharing this information, we can work together to find a solution to this issue which is a plague to an otherwise excellent Porsche.
The vibration or oscillation doesn't appear to be related to tires or wheels. Instead, it's most noticeable in the floor and seat, rather than in the steering wheel or brake pedal. This problem seems to primarily affect the 4WD models and is intermittent, varying depending on road conditions and the distance the vehicle has been driven.
To gather more information about this issue and understand how widespread it is, owners are encouraged to share their experiences by responding with the following details:
• Year of your Panamera
• Model of your Panamera
• Mileage and age of the vehicle when you first noticed the vibration
• Any additional descriptions or comments regarding your specific experience with the vibration issue.
Hopefully by sharing this information, we can work together to find a solution to this issue which is a plague to an otherwise excellent Porsche.
30k miles
I am having the exact same issue, usually between 1000 and 1200 rpms which equates to between 25 and 30 mph or 55 to 60mph. New tires wheels all checked by dealer. Thus is the third time, thinking about trying another dealer.
05-28-2024, 09:31 PM
#54
Can you please test to see if the issue still occurs in Neutral? Can you eliminate the vibration by using the paddles to shift to a lower gear while maintaining constant speed?
05-28-2024, 11:18 PM
#55
Definitely does not happen in Neutral only while moving at above mentioned speeds and rpms. With rpms at 1000 to 1200 usually in 5 or 6 gear.
06-10-2024, 07:54 PM
#56
1st Gear
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2018 4e hybrid sport turisimo
75000 km
Has vibrations
Started after gearbox replacement. Dealer had the car for 2 months then, they could not get the new gearbox to talk to the engine. Car has now been at dealer for additional 3 months for diagnostics, still no result.
So now 5 months without my car (perfect).
Tested in neutral while driving, and all modes. same vibration
Tested on 4 sets of wheels. 20 and 21 's
75000 km
Has vibrations
Started after gearbox replacement. Dealer had the car for 2 months then, they could not get the new gearbox to talk to the engine. Car has now been at dealer for additional 3 months for diagnostics, still no result.
So now 5 months without my car (perfect).
Tested in neutral while driving, and all modes. same vibration
Tested on 4 sets of wheels. 20 and 21 's
Last edited by ess; 06-10-2024 at 07:56 PM.
06-10-2024, 08:23 PM
#57
Rennlist Member
2018 4e hybrid sport turisimo
75000 km
Has vibrations
Started after gearbox replacement. Dealer had the car for 2 months then, they could not get the new gearbox to talk to the engine. Car has now been at dealer for additional 3 months for diagnostics, still no result.
So now 5 months without my car (perfect).
Tested in neutral while driving, and all modes. same vibration
Tested on 4 sets of wheels. 20 and 21 's
75000 km
Has vibrations
Started after gearbox replacement. Dealer had the car for 2 months then, they could not get the new gearbox to talk to the engine. Car has now been at dealer for additional 3 months for diagnostics, still no result.
So now 5 months without my car (perfect).
Tested in neutral while driving, and all modes. same vibration
Tested on 4 sets of wheels. 20 and 21 's
2. Making me afraid to even drive mine ('18 STTS).....lo miles/perfect condition (probably jinxing myself now......)
Hope you get some resolution in time for summer driving.......
06-15-2024, 11:45 AM
#58
06-16-2024, 08:16 PM
#59
is this mostly happening to pre 2022 cars?
It'd be interesting if this was an issue that happened to get fixed with the 971.2 generation starting in 2021 but that doesn't seem like the case.
06-18-2024, 03:55 PM
#60
971
Speaking with a "Dealer" the newer models does not have the issue. I am inclined to think that it's the 4WD 2018 to 2020 models