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Audi A6 3.0 tdi Quattro 2005, glow plug light comes on, limp mode

Audi A6 3.0 tdi Quattro 2005, when accelerating the car hesitates toward high revs, glow plug light flashes and car enters limp mode, if i driver the car steady have no problems, my mate has a car plug in machine and the fault code is 16619, can anybody help , thanks Paul

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16619 -Engine boost condition - Limit not reached. Check intake hoses/ connections for leaks. Check Turbo charger waste gate regulating valve/ waste gate working correctly. Must move freely when accelerating, won't achieve full boost if waste gate sticking open. Check Turbo impeller turning freely, oil feed pipe for turbo can get blocked causing impeller to seize. Engine compact, not easy to access these components.

Posted on Jun 06, 2010

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