My 3.0 D4's box is still spitting the dummy with P2704 when trying to engage 5th after dropping back under load from 6th in both auto and manual mode, even returning to 6th by itself when in manual at less than 2000 rpm. Adaptations were re-learnt after having got clearer instructions on the learning procedure but still no improvement. I have a few more inquiries to make but may fit a new set of solenoids as there's no indication of plate wear, all clutch adaption pressures and timing are identical and it up-shifts and down-shifts smoothly apart from failing to engage when dropping back to 5th.
A USA 2010 RR owner reported the same fault code in the same general circumstances 10 days ago but no diagnosis yet. New solenoids wont be the solution if the prematurely worn stator bush mentioned in the TSB is indeed the cause.
MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
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