I am really hoping I can get some help here. I purchased a 2010 L322 a few months ago (85,000 miles). The vehicle has been running and shifting smooth up until recently. After about 45 minutes to 1 hour of drive time & only under load going uphill on the freeway I will get a gear box fault and the vehicle will go into neutral/limp mode. Pretty scary stuff while on the freeway in traffic! It will go back to normal after restart but will trigger limp mode again once I hit 5th or 6th under load uphill trying to make it home. The interesting thing about my issue vs other threads I have read addressing similar problems is that (my impression) the E clutch controls 4th gear as well. 4th gear has never given me any problems yet I have an E clutch fault. Shouldn't the problem be happening in 4th as well then? I have tested to see if switching over to command mode will fix the problem but same fault/limp mode in 5th & 6th gears only uphill on the freeway and under load. Land Rover ran the codes and came back with Code P2702-07 Mechanical Failure, E Clutch Internally Failed. They suggested a new transmission, which seemed pretty extreme to me since it is running so well in other gears and even 5th & 6th before I start hitting load at around an hour of drive time. Any suggestions would be much appreciated!
Also, I crawled under there the other weekend and serviced the transmission to see if this would solve the issue. Still had the problem. Installed a new filter, pan, and official ZF 6hp oil. Kit and all parts ordered from Atlantic British. (Drained the oil twice to try to flush as best as possible.) The original magnets had some sludge on them but not too bad. No metal filings were detected from what I could see in the old oil. This was the first time the transmission was serviced.