645ci. 2004

I purchased a 645ci. 2004, the car was running fine now increased immisions showed up then flat tire came on I checked my tire they are fine .Help!

the increased emissions could be a multitude of things, you will need to have the codes read, and every time my flat tire light came on I always had at least 1 tire that was low on pressure. Did you check the amount of tire pressure in each tire or did you just look for a flat?

Also more people may see this, if you post it in the regular 6 series forum, instead of the DIY

Originally Posted by dapirate

the increased emissions could be a multitude of things, you will need to have the codes read, and every time my flat tire light came on I always had at least 1 tire that was low on pressure. Did you check the amount of tire pressure in each tire or did you just look for a flat?

Also more people may see this, if you post it in the regular 6 series forum, instead of the DIY

+1

The colder weather dropped your pressure. Check all tire pressures and get them perfect, then reset TPM. FYI - You have to be driving for it to finish resetting.

For the other, check and reset the codes. But start by getting a full tank of good gas (i.e. Shell or Sunoco 94) and treat your gas with a quality cleaner.