my dear peugeot fans, my car is 1999 pegeot 406 d8 1.8 8v petrol. When i turn my steering wheel some times my car start to vibrate. it is not the engine but power steering column vibrates. also there is little streering fluid leakage at the upper oil seal. when i turn steering with engine turn off air bubbles coming at the steering fluid reservoir. will it be ok if i replace oil seal or have to replace entire power steering
column