Engine revs remain high or increase when braking

check its engine oil first......also check in morning there is any pollution.....if it have then replace its ring set and piston..

Hope this helps

the revs goes down when is in gear because the engine gives moves to the gearbox.i believe that you must change the stepper motor

sounds like an engine sensor try the crankshaft sensor as the rev counter gets its info from that , might be helpful to get the OBD read by a suitable mechanic

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280mm

Below is a link with more info, all models, petrol and diesel use same rotors

Link:

Throtle sensor faulty.Get it checked out.

Possible tdc/crank sensor. this can cause the car to not start and cut out

Hi,
From your description this appears to be a Brake servo issue.
The brakes are assisted by a vacuum created from the draw off the inlet manifold, it gives assistance too the brake pedal pressure by a large tank/cylinder mounted on the Bulkhead/firewall.
I feel that the sound you a hearing is air being draw into the Brake Servo from the foot pedal seal and the reason for fluctuation in the engine is the vacuum from the inlet manifold is being upset.
Attention I suspect should be addressed to the Brake servo/pedal seal or gaitor.
I hope this clarifies your thoughts?
Please remember to rate my effort.
Paul 'W'
Onyer~EDSon(:0) {#><U.K.

bet it failed on lambda reading...........sounds like you got an air leak somewhere ! or could be an idle control valve problem,have you had it plugged into any diagnostic equipment yet ?