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Message: <blockquote data-quote="ken007" data-source="post: 444888" data-attributes="member: 18164">Hi all I am driving a singapore plate year 04 E46 318. Have mine updated to 06 version software at one of the workshop here when I was doing servicing the. Ask by the technician whether I want to do a update to a latest version when he read from my obd mine is still on 04 version. Feedback from him some car owner after doing the update can feel car pick up is smoothed. The cost is S$80 and it take 45 min to complete. After the update is complete the first thing I notice when I turn on the air-con it on recirculating mode rather than on outside air mode. On the old version when we on the air-con we can smell some exhaust smell and need to select to recirculating mode. Now no exhaust smell just on air-con and drive off.Before update car pick up slow and full tank can only clock below 400km before empty tank light up. Now feel pick up smoothed and faster than before. And full tank can clock 420-450km before empty tank light up. If you on your air-con it on outside air mode than it on the old software that come orginally with the car.  I think better not to play with the OBC function. One wrong step don't know what damages can be done to the car.</blockquote>