Quote:
Originally Posted by ttimbo
In general, I agree with you, however the Aisin 8AT in the AWD X1 20d/25i/28i does actually include a transmission oil cooler. BMW is pretty conservative and, in my experience, generally specifies components capable of reliably meeting specified use. As this includes a (braked) towing capacity up to 2,000Kg, the transmission ought to be able to handle this. But the X1 is by no means the sort of tow vehicle I'd choose for a 3,500lb twin axle RV, for reasons stated.
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As far as I know, all automatic transmissions have a cooler, but they use the engine cooling system. These coolers do not have the heat capacity for extended heavy loading. If you want to tow, there is nothing stopping you, but you are asking for trouble, if not right away, down the road.