Hello, I own a 2021 DS7 Crossback 2.0 Hdi Rivoli with Active Scan Suspension and 50.000 kms. The car is bouncing around every bump, and skipping when driving over small cracks on the road or sharp uneven surfaces. The car has always been treated very gently, with no errors or warning lights on the dash. I had it scanned and nothing came up related to the suspension. I might be wrong, but it feels this problem arose after a battery change, no difference in driving modes (Sport, Normal or Comfort). I live in Argentina, and my car is not very popular here, the official Peugeot/Citroën dealership has no idea whatsoever. However, my father in law drives the same car, same year and spec, same milage also. Comparing the two, it is very clear his car has much better driving dynamics, stability is night and day, and bumps are absorbed by the suspension. Could anyone with experience on this issue help me out? I bought the car used with 40.000 kms on it, optimal condition, but I am regretting it already. Thank you.
Welcome to the community @Juan_Larranaga !
When did you do a wheel alignment last time?
I’ve had exactly those issues for a long time and a month ago I took in for a wheel alignment and after that the problems are gone.
Hello, Jay. Thank you for your reply. I have never done an alignment on my car yet, it drives straight with no issues, so never felt necessary. But your solution is very welcomed, it’s driving me crazy. I honestly feel unsafe, it is unpleasant, and I avoid driving it. Can you please further elaborate on the alignment? Anything precise or settings to look at? The rears seem to have an aggressive negative camber setting, but I don’t see any uneven wear on the tires. Thanks again.
One value is in the wheel alignment, which can be adjusted. This should be done within tolerances but as close to zero as possible to stay on green. The design allows the rest to correct a little itself at the same time.
If you take it to a tire shop, or a regular mechanics garage, they know what to do.
I agree, it is really unpleasant to drive it like that. And even worse if the road conditions are bad as well.
Yes and no. They’ll set on green but it in the middle, and this suspension works best when it’s as close to zero as possible, but on the green off course.
ok, but a DS/Stellantis mechanic would know that I suppose?
With all due respect, I don’t think so, this is the experience of users of this suspension, not PSA technicians.
If they have a specified value of, for example, +0°26′ ± 0°10′, that’s what they’ll set. If you tell them to set it to +0°16′, they probably won’t do it.
Ok, guys. Thank you for your help. The car is now aligned and feels smoother on the road. I haven’t driven it much and will further test it in the next few days. Convergence was set to minimum, in the green. Checked all bushes and joints, very solid all around.
Is there a difference if it doesn’t have the active scan suspension?
Then write down what the regulatory data and tolerances are. Maybe it will be useful to someone.
The parameters (not confirmed) I found for the DS7 are:
Total convergence
Front −0°10′ ± 0°10′ (divergence)
Rear +0°26′ ± 0°10′
There are probably differences depending on the 4x2 or 4x4 version. Active shock absorbers probably not.
Thank you for your call following the diagnostics and inspection on your vehicle. As discussed, we have found additional play and movement within Both rear Longitudinal Suspension arms. These vehicles are known for the rubber bushes on the end of the suspension’s arms dropping lower than there housing, causing the arms to have more movement and cause the issues which you are experiencing.
That’s from a ds dealer here in the UK.
Mine is going in next month.