Jittering 50-70mph

[Djavid]

I own a 2015 Macan diesel S and Ive noticed the car feels jittery between 50-70mph. This is felt mainly through the accelerator pedal and steering. Changing to sport mode and changing the suspension does not make any difference. Took it to Porsche and the mechanic said a loan car did the same so must be normal. Has anyone else had the same issue?

[Wing Commander]

Welcome.

Sounds like a very unsatisfactory response from the OPC (official Porsche Centre).

Could it be a wheel balance issue? Wheel alignment?

[TheTraveller]

+1 to that. 50 to 70 is the typical speed range when wheel balance shows out of true. And coming through the steering wheel, would appear to be the fronts wheels are out.

[Guy]

+1 to that. 50 to 70 is the typical speed range when wheel balance shows out of true. And coming through the steering wheel, would appear to be the fronts wheels are out.

I wouldn't rule out the rear wheels on a 4WD car. My RWD 5-series had this problem once and the rear wheels needed balancing.

[TheTraveller]

+1 to that. 50 to 70 is the typical speed range when wheel balance shows out of true. And coming through the steering wheel, would appear to be the fronts wheels are out.

I wouldn't rule out the rear wheels on a 4WD car. My RWD 5-series had this problem once and the rear wheels needed balancing.

The rear wheels would tend to manifest themselves as a drone throughout the car. The front tend to manifest them as a wobble through the steering wheel. It doesn't make much difference whether it's 2 or 4 wheel drive. It's where the ballance is out of true that affects it.

[Guy]

+1 to that. 50 to 70 is the typical speed range when wheel balance shows out of true. And coming through the steering wheel, would appear to be the fronts wheels are out.

I wouldn't rule out the rear wheels on a 4WD car. My RWD 5-series had this problem once and the rear wheels needed balancing.

The rear wheels would tend to manifest themselves as a drone throughout the car. The front tend to manifest them as a wobble through the steering wheel. It doesn't make much difference whether it's 2 or 4 wheel drive. It's where the ballance is out of true that affects it.

On my 5-series it was definitely felt as a wobble through the steering, and was cured when the rears were balanced. Just sayin ..

[gasgas1]

how many miles, what are the tyres like the rubber could be going hard

[Col M]

how many miles, what are the tyres like the rubber could be going hard

And which OPC !

[TheTraveller]

I wouldn't rule out the rear wheels on a 4WD car. My RWD 5-series had this problem once and the rear wheels needed balancing.

The rear wheels would tend to manifest themselves as a drone throughout the car. The front tend to manifest them as a wobble through the steering wheel. It doesn't make much difference whether it's 2 or 4 wheel drive. It's where the ballance is out of true that affects it.

On my 5-series it was definitely felt as a wobble through the steering, and was cured when the rears were balanced. Just sayin ..

If it's just started to develop, have a visual look around at all the wheels. And see if there is any evidence of a wheel weight missing. For it to start, from how you describe it, then something has gone wrong all of a sudden. The 50 to 70 is text book symptoms, so it's definitely wheel out of balance.