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  1. F06 Gran Coupe (2013 - 2018)
    Hi Guys, I am receiving the following issue with my 2013 BMW 640D Grancoupe M Sport. Whilst driving, I start the engine and immediately feel that there is reduced power. The engine sounds noisy however no error codes are displayed on the cars dash. If I pull over, turn the car off and on then...
  2. F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
    So Tuesday morning my car will be going in the rolling road, I've just removed and blanked the swirl flaps, cleaned inlet manifold and replaced glow plugs / controller as they needed doing too (can't notice any difference in power btw BUT i cleaned alot of gunk out of the inlet so it's not a...
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