We have good solution for MB ML350 w166 equipped with BOSCH EDC17CP46 ECU.

in this case there was fault codes P20F4 and P13E4. ECU started to countdown last kilometres till no start.

With our solution it is necessary to disconnect DCU - location luggage compartment- in right side (see pictures)

ECU: BOSCH EDC17CP46

SW: 10SW074840

CR60-BJLQ-166WA-642LS-EU6_1OPS_4x4_3S_MY15_2-ME43

For read/write operations we used Autotuner-tool.

Location of Adblue ECU MB ML350 W166