MembersPage/MercedesAmgM113 (2023-05-14 08:13:36)

Mercedes AMG M113, 5L V8 without compressor from factory (not M113K) but compressor DIY-added with lot of mech-work.

Same set of sensors as the V6 M112 engine (just in case it is easier to find docs for that).

V8 engine 15426378 firing order (CL500 or similar chassis)

[M113 engine] 3 valves and dual sparkplugs per cyl (16 sparkplugs total), no VVTI

Engine started immediately after sorting out the mess of ignition transformer connections:


Ign outputs ... - will be overloaded this way

However, because 1-6 and 6-1 are driven in pairs, 4 igncoils from 2 outputs with opponent cyl hard-wired

15426378 recommended output connection:


Had to do some investigation (or hint, eg pinout) regarding M113 sectrig HALL sensor


Primary trigger VR (1072 Ohm)

Primary trigger VR signal is really trash


Secondary trigger: 1 pulse per camrot Bosch 0.232.103.027 - sensor had contact problem at male receptacles (oxide? even with new heatshrinked receptacle it did not work first

pinout (Verified: pin1,2,3 are: GND, HALL output pink, +12V red-blue)

Similar bosch camshaft Hall sensor's datasheet: [0232.103.037] - All "0 232 103 XXX" sensors seem to bee camshaft sensors.

Big mistery with secondary trigger,


DBW


Ignition


URLS