W211 E500 722.6 limp mode
P2502 gear is implausible or the transmission is slipping
'To start' check ATF level. Then inspect valve body connector for leak: https://www.mercedesmedic.com/722-6-...sion-plug-diy/ including possible fluid migration into harness/CU see attachment. All fine, check ATF for metal shavings.
atf level is ok.
oil changed and harness plug in gearbox about 1500km ago.
no oil in control module.
no metal shavings.
its working pretty normaly but when you do burnout or accelerating hard and tires slip ---> limp mode. stuck in gear 3. restart engine and then it works again.


