Car slower on cold morning than cold evenings (N52 3.0)

[E82_125i]

BaconWorks said:

Follow up:

Resetting adaptations in INPA has definitely improved the difference in response between day and night acceleration. This was about 2 weeks ago, so I would say it is a reasonable solution.

However, on days of high humidity and extreme heat (I'm in Australia) with the AC on, the car is noticeably slower, a lot slower even after discounting the changes due to weather and the AC compressor load.

Great stuff! Did it solve your problems? I do agree heatsoak is certainly noticeable on these. However i have an update on mine, i believe i have issues with the CCV causing odd noises at the oil cap. Possibly due to a build up in pressure,

It is also now causing issues with the eccentric shaft sensor. So whatever is happening, its due to the something in the breather system failing. This may be costly if i have to replace the cam cover and annoying as ive already had the gasket replaced

[BaconWorks]

E82_125i said:

Great stuff! Did it solve your problems? I do agree heatsoak is certainly noticeable on these. However i have an update on mine, i believe i have issues with the CCV causing odd noises at the oil cap. Possibly due to a build up in pressure,

It is also now causing issues with the eccentric shaft sensor. So whatever is happening, its due to the something in the breather system failing. This may be costly if i have to replace the cam cover and annoying as ive already had the gasket replaced

Seems to help a little bit. I suspect the real issue is a problem with the CCV, eccentric shaft and/or leaking valve cover on mine. Since it is plastic might as well replace the entire valve cover,also the CCV is integrated into the cover so there's that. A minor leak or crack would be exacerbated in hot weather I guess.

Yes these cara are finicky. Happy Christmas.

[alabbasi]

Rev limiter, thicker oil in engine, gearbox and diff etc. Warm your car up before you flog it.

[CIS121]

2010 530D - I've found the same, slow start and lumpy for the first half minute

I've always been dubious of the additives - there are plenty of stories out there, however I added a Redex diesel treatment before a road trip this summer and after a long blast on the Autobahn at 130MPH, the car starts and runs beautifully now. The "Italian tune"...