Clagged up swirl flaps
Anyone had this? V70 D5 185bhp, 2007, 70k miles and swirl flap actuator arm flipped off having been displaying engine management service required warning intermittently for a few weeks. Car went into limp home mode, reconnection got power back but decided to work out why?
Removal of rocker cover (along with injector pipes etc etc) showed all the flaps covered in hardened carbon/oil clag. So stiff that the actuator and arm coudn't move them. Much cleaning, refitting and all is well again. Local garage took 3.5 hrs and new rod, gaskets, etc to sort. Car now going like a high speed train.
Is this build up of muck normal or not, and if so can it be avoided?? What causes it?
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