ive been smelling a whiff of derv around the car for a few days now and after having a look its pretty obvious that diesel is leaking from the injectors where the injector enters the head.One is deffinately worse than the rest, five of them are just damp but one is weeping. is it that there is a seal around them that needs replacing, if so do i just remove each injector and fit new seal then replace. Anything i should know about doing the job?
Thanks in advance
the engine is a 2.5 tdi qs 180 (ake)