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3
No boost and strange noise
Morning Jim A Seat owned by a neighbours wife from new but only used for school run duties was completely clogged at lower miles than yours. Predictably the Dealer said new Turbo new EGR and a swathe of other parts £££, a local Diesel specialist stripped, cleaned and rebuilt everything and gave her the advice to give the car a good run at motorway speeds once a month. Years ago my son had issues with his Toyota pickup the dealer mechanic told him an "Italian Tune Up" (engine up to temp and keep revs over 2.5k for half an hour) needs doing every few weeks. As a Tree Surgeon he tended to be trundling around off road at slow speeds and low revs. With luck it's just the actuator mechanism Dave -
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No boost and strange noise
Many thanks for your input Dave. My car does have twin turbos. I checked for play on the cold side of the larger/bottom turbo by removing the air intake but I take your point about the hot side taking more of a hammering. I can feel the actuator move at the vacuum box but I can't access or see the point where it connects to the turbo. I don't know if the flap moves freely - maybe the hot side is full of carbon as I tend to do short trips. Time to dig deeper so I've just dropped it off with a local turbo specialists who say they can run diagnostic tests and do a route cause analysis. The car has only done 55,000 miles, full service history with oil/filter changes every 4000 to 5000 miles so I'm hoping the turbo hasn't failed already 😟 Thanks Jim -
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Advice needed on replacement valve cover
Hi Darren Think about how much you have saved at Main Dealer hourly rates 😁 Plus the satisfaction of a job well done Modern cars not designed to be DIY friendly 😅 the cynic in me thinks it is a ploy to drive us towards the dealer network. They will probably tell us they would never do that, yeah right 🤣 Well done Dave -
8
2007 525i
Could also be a stuck idle control valve. Remove it and give it a shake… it should click clack noise opening freely.
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