Vibrations and motor rev

Hi DS-fans,

I own a DS7 CRossback from 2019, 180 petrol motor.
I have two questions and like to know the thoughts of other owners.

  • when I start the engine when cold, the motor revs up to about 1500 rpm. This lasts for about 30 seconds, sometimes more, sometimes less. Then it settles back to about 900-1000. During this time of high rpm I feel quite a lot of “vibration”, in the steering wheel especially and this settles the moment the rmp slows down. Is this a normal situation when starting up?

  • I feel that at lower rpm’s, let’s say between 1000-1700, so when driving slowly, in the city, etc. there is vibration I feel in the steering wheel, and sometimes in my chair. It’s not like shaking in the way when your tires aren’t balanced well, but a quick, superficial vibration that I think must come from the engine. I also feel it when letting the engine “roll out” towards a red light, and then a sudden moments when the automatic gear shifts back and the rmp is round 1000-1700 and the pace slows down from let’s say 80 km/h to 50, 40, 30 I feel this. How much vibration is normal? And is this something I should have checked? Can it be that the engine is not fastened tight enough?

Hope to hear from you! Thanks in advance!

Ronald

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Anyone?

Hi @Ronald,

The 1500rpm on start-up is normal - that is the automatic choke for the engine, to assist it with getting up to operating temperature. However, there should not be much vibration - a little maybe, but nothing out of the ordinary.

The vibration you mention when driving slowly, or when slowing down does not sound right - possibly a loose engine mount or worn engine mount rubber? Again, since it is a vibration it is hard to tell - have you ever driven another DS 7 and if so, is it different?

If your vehicle is still under warranty, take it to DS to have a look - they may tell you it is fine, maybe ask for a short test drive in another.

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Thank you for the answer.
Will look into the mount / rubber thing and have a chat at the garage…

Regards, Ronald!