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Old 8th February 2013, 02:33 PM
ainarssems ainarssems is offline
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Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,854
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When I first move off it often seems rather jumpy almost as if I'm pumping the throttle (I'm not) and when pulling out of a junction I've experienced a lot less power than expected, but only within the first minute or so from cold.
It still accelerates, but sluggishly (for an S8)
Sounds like one or couple cylinders not working properly(or one bank), misfiring. If it's only from cold it could be coil packs, dodgy cambelt tensioner shock absorber or oil retention valves causing oil to leak out of chain tensioner when parked up. Maybe low compression in some cylinders when cold.
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2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
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