I just managed to pull a SES light and code:
29D0 Misfirings, cylinder 4
Plugs changed a couple of weeks ago to rectify this - to no avail. I'll try to switch coils with another cylinder and see if the code travels.. if not could be injector or worst case carbon buildup.
Steve, you have a similar mileage to me - have you cleaned the valves yet? Mine just does long runs at motorway speed so hopefully the worst of the carbon is getting burnt away...
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Car: e91 330d with Viezu map
Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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