First sign of a problem? e60 M5

[sshenton1975]

So some of you may have read my story

Just purchased a 05 M5, 68k miles with new engine 1000 miles ago from BMW

Car drives beautifully and that is even with me taking it carefully whilst running it in.

First oil change is due next week

In the last 2 weeks of ownership, there have been 2 occasions when cold starting that it starts with a slight misfire and the yellow check engine/reduced power symbol comes on. Switch off and switch on - all is well. No symptoms at all when driving and only happens when cold

Any idea? No stored or recorded codes on OBD reader.....

[Wills2]

If it happens again take a picture so you can show the dealer when it goes in, I find that these error messages come up and then disappear showing no error codes which is a bit baffling.

Mention to them as well even if it doesn't come back again, I guess the engine is fully warrantied anyway?

The misfire doesn't sound great though, if that is what it is.

[contractor]

Could be a range of things. Some cost 50 quid to fix, others cost 5000 to fix. You need to get it looked at