W163 270CDI disable M55 help need

[arthoor0]

Hi,
i need help with Mercedes ML 270CDI - i have M55 problem, and car is in limp mode.

Thanks in advance
Best regards

[4523115]

try this and report

[arthoor0]

Thanks, but tunelab (https://www.digital-kaos.co.uk/forums/member.php/632562-tunelab) helped. Thanks.