Panamera ST jumping suspension tram lining
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Panamera ST jumping suspension tram lining
Hi. Late 2017/2018 Panamera ST e hybrid. Mileage 41k. 21 inch wheels with Pirelli tyres all round
My car is jumping over manhole covers and imperfections in the road. Also tramping badly in front wheels. It also feels very floaty when driving. All air suspension is working as it should. No errors. Pressure in the system has been checked as have wheel heights and all are in spec. Porsche have checked and say it’s all in spec. However something is definitely off. It drives badly. And I don’t see any reference to any issues in the reviews online so suspect mine is not as it should be. Any ideas and what do I need to get checked ?
My car is jumping over manhole covers and imperfections in the road. Also tramping badly in front wheels. It also feels very floaty when driving. All air suspension is working as it should. No errors. Pressure in the system has been checked as have wheel heights and all are in spec. Porsche have checked and say it’s all in spec. However something is definitely off. It drives badly. And I don’t see any reference to any issues in the reviews online so suspect mine is not as it should be. Any ideas and what do I need to get checked ?
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Hi - have lowered pressure in rear by 3psi and has made some improvement. Car still seems to be boat like and moves from side to side. Air suspension appears ok. Only comment would be it sounds like it expels a lot of air when stopped as part of self levelling and also quite loud. I have no suspension knocks. However does that mean all bushes are ok ? Any recommendations of what order to start looking at things like anti sway bar or control arms ? Car is late 2017 with 41k mileage
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From: linker Fahrbahn
Hi. Late 2017/2018 Panamera ST e hybrid. Mileage 41k. 21 inch wheels with Pirelli tyres all round
My car is jumping over manhole covers and imperfections in the road. Also tramping badly in front wheels. It also feels very floaty when driving. All air suspension is working as it should. No errors. Pressure in the system has been checked as have wheel heights and all are in spec. Porsche have checked and say it’s all in spec. However something is definitely off. It drives badly. And I don’t see any reference to any issues in the reviews online so suspect mine is not as it should be. Any ideas and what do I need to get checked ?
My car is jumping over manhole covers and imperfections in the road. Also tramping badly in front wheels. It also feels very floaty when driving. All air suspension is working as it should. No errors. Pressure in the system has been checked as have wheel heights and all are in spec. Porsche have checked and say it’s all in spec. However something is definitely off. It drives badly. And I don’t see any reference to any issues in the reviews online so suspect mine is not as it should be. Any ideas and what do I need to get checked ?
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Aug 2022. I have covered approx 4k in my ownership. Porsche dealer says they all do that. But I have recently driven a 2020 ST and a much newer 4S saloon and the difference is night and day. I can’t believe this would not get talked about in Press reviews of this was the standard way in which this vehicle drives. It’s that bad that if I can’t find a route to investigate further I will sell the car.
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I had Pirelli's on my 996 and the car drove like crap. I installed a set of Michelin's and the car's handling improved significantly. Is there any chance you can try swapping another set of wheels w/ known good tires to eliminate this as a possibility?
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Hi - have lowered pressure in rear by 3psi and has made some improvement. Car still seems to be boat like and moves from side to side. Air suspension appears ok. Only comment would be it sounds like it expels a lot of air when stopped as part of self levelling and also quite loud. I have no suspension knocks. However does that mean all bushes are ok ? Any recommendations of what order to start looking at things like anti sway bar or control arms ? Car is late 2017 with 41k mileage
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Tyres are new on the back but I do have a suspicion this could be adding to part of the problem as dislike Pirelli and much prefer Michelin. Although unlikely to affect the swaying from front to back and the swaying side to side. Feels like there is not enough air in the shocks or the shocks are not reacting to the road conditions but as I say, they appear to be working in all other manners without fault. Particularly bad a mid speeds like 50/60mph. Don't feel at slow speeds and appears to be less at high speeds 80mph +.
Thanks for all the ideas so far.......
Thanks for all the ideas so far.......
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Front 38psi (not taken any pressure out) rear 39psi (this is reduced by 3psi from 42psi). This is based on partial load settings. Pressures measured before driving the car when tyres are cold.
I suspect unrelated - when I put the correct pressures in, the car is massively over measuring the pressures consistently on all 4 wheels. Don't know if tyre sensors can be reset or calibrated? Also prefer to use a gauge any how but interesting all the same
I suspect unrelated - when I put the correct pressures in, the car is massively over measuring the pressures consistently on all 4 wheels. Don't know if tyre sensors can be reset or calibrated? Also prefer to use a gauge any how but interesting all the same
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From: Southern California
Ok and reading your post, it doesn’t sound like just tire pressures would cause the odd motion.
Do you have sport chrono? Does sport and sport + improve the body motion? I don’t get the same body motion issue you’re having in my 18 4S (also 21” pirellis), but the car is notable more planted and stiffer around corners in sport +. If you don’t notice a significant difference than I agree and suspect it’s something with PASM
Do you have sport chrono? Does sport and sport + improve the body motion? I don’t get the same body motion issue you’re having in my 18 4S (also 21” pirellis), but the car is notable more planted and stiffer around corners in sport +. If you don’t notice a significant difference than I agree and suspect it’s something with PASM
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Hi. Sport stiffens everything up and reduces the rocking and swaying. I have learnt today that if I stay in sport when I leave the car there is minimal air extraction from the self levelling. When in standard there is a lot of air expelled. This is consistent with everything feeling too soft. Not sure if this relates to the problem.