Hi,
Having some problems with my 2010 F07 530d GT.
Pulling into my drive last night after around a 50mile trip I noticed a strange tapping/knocking noise in time with the revs of the engine. I shut it off and came back to it this morning.
Firstly I checked ISTA for codes and had the following:
241000 - Smooth-running regulator: correction quantity too high
24AE00 - Smooth-running regulator: correction quantity of several cylinders outside permissi...
24B300 - Smooth-running regulator, cylinder 2: correction quantity too high
Here's a couple of videos - the first is with a fully cold engine, I'd removed the air filter etc but I don't think it sounded too bad at this point, certainly not as bad as the evening before:
The second video is after a short 3mile drive, the car seemed fine (probably still a slight noise but much reduced) for about a mile but then the noise started to become apparent again.
You can see that the engine seems to be moving around a fair bit (engine mounts were done about 10k ago as well). It also made a fairly loud squeaking/screeching noise as I reversed (similar to a belt slipping, maybe?) but I couldn't get this on camera. The drive belt was replaced earlier this year.
I'd cleared the codes in the morning, but the same ones returned after the short drive.
Would anyone care to comment on what this could be? The fault codes lead me towards injector(s), but I wanted to throw it out to the community to hear some ideas!
Thanks very much