I'm new to this group, but I appreciate any help and advice you can provide. I just bought a 99 A6 2.8 Quattro. I'm very happy with the car overall, but when the car is cold it takes a really long time to turn over. The battery and starter are both very strong, so I'm not sure where to look next. Somebody mentioned to me that it could be a heat sensor? If this was the case would'nt I get a check engine light? Not sure where to look next. Thanks in advance for your help.