Operation CHARM: Car repair manuals for everyone.

Signal Names With M



MADVA Increase ADV actuation
MADVZ Decrease ADV actuation
MELEDBT Memory switch LED, passenger's door
MELEDFT Memory switch LED, driver's door
MER Unlocking central-locking units
MERBT Motor, central-I. unit, pass., unlocking
MERFT Motor, central-I. unit, driv., unlocking
MERHK Motor, unlocking, tailgate
MFBA Motor, power window, passenger, open
MFBHA Motor, pwr window, pass.-side rear, open
MFBHZ Motor, pwr window, pass.-side rear, closed
MFBZ Motor, power window, passenger, closed
MFFA Motor, power window, driver, open
MFFHA Motor, pwr window, driv.-side rear, open
MFFHZ Motor, pwr window, driv.-s. rear, closed
MFFZ Motor, power window, driver, closed
MFL+ Power supply, steering wheel, positive
MFL- Power supply, steering wheel, ground
MFS+ Magnetic-field probe +
MFS- Magnetic-field probe -
MFW1 Ground, pedal-position sensor 1
MFW2 Ground, pedal-position sensor 2
MHABF Motor, seat height UP, passenger
MHAFA Motor, seat height UP, driver
MHK Hood contact
MHKL Motor, tailgate
MHRH Motor, rear-window roller blind UP
MHRT Motor, rear-window roller blind DOWN
MHS Motor, rear window
MHZBF Motor, seat height DOWN, passenger
MHZFA Motor, seat height DOWN, driver
MI-BUS Motor bus
MI-BUSL Motor bus, left
MI-BUSR Motor bus, right
MK2 Activation, compressor clutch
MKABF Motor, head restraint UP, passenger
MKAFA Motor, head restraint UP, driver
MKBF Data lead, drive, head restraint, pass.
MKFA Data lead, drive, head restraint, driver
MKL Magnetic clutch, fan
MKSL Motor, head restraint, left
MKSLR Motor, head restraint, left-right
MKSR Motor, head restraint, right
MKZBF Motor, head restraint DOWN, passenger
MKZFA Motor, head restraint DOWN, driver
ML+ Motor, steering-col. long. adj., positive
ML- Motor, steering-col. long. adj., negative
MLABF Motor, backrest FORWARDS, passenger
MLAFA Motor, backrest FORWARDS, driver
MLAL Motor, backrest, rear left, forwards
MLAR Motor, backrest, rear right, forwards
MLK+ Motor, backrest head, positive
MLK- Motor, backrest head, negative
MLKFA Motor, backrest-head adjustment, driver
MLNBF Ground, needle-motion sensor
MLNFA Data lead, drive, backrest, driver
MLSL Motor, steering-col. longitud. adjustment
MLSL- Ground, motor, steer.-col. longit. adjust.
MLSN Motor, steering-column inclination
MLSN- Ground, motor, steer.-col. inclination
MLV+ Mid-range loudspeaker, front left +
MLV- Mid-range loudspeaker, front left -
MLZBF Motor, backrest BACKWARDS, passenger
MLZFA Motor, backrest BACKWARDS, driver
MLZL Motor, backrest, rear left, backwards
MLZR Motor, backrest, rear right, backwards
MN+ Motor, steering-col. inclination, positive
MN- Motor, steering-col. inclination, negative
MNABF Motor, tilt UPWARDS, passenger
MNAFA Motor, tilt UPWARDS, driver
MNZBF Motor, tilt DOWNWARDS, passenger
MNZFA Motor, tilt DOWNWARDS, driver
MOFA Motor, thigh support, driver
MOT+ Power supply, heater blower
MOT- Ground, heater blower
MRA Motor-relay tripping
MRDINIT Ground, initialization button, RDKS
MRL Engine-compartment light
MRV+ Mid-range loudspeaker, front right +
MRV- Mid-range loudspeaker, front right -
MSABF Motor, seat sled FORWARDS, passenger
MSAFA Motor, seat sled FORWARDS, driver
MSHBF Data lead, drive, height, passenger
MSHFA Data lead, drive, height, driver
MSIR Motor, intensive-cleaning pump
MSLBF Data lead, drive, seat sled, passenger
MSLFA Data lead, drive, seat sled, driver
MSNBF Ground, needle-motion sensor
MSNFA Data lead, drive, tilt, driver
MSOBF+ Motor, thigh support, passenger +
MSOBF- Motor, thigh support, passenger -
MSOFA+ Motor, thigh support, driver +
MSOFA- Motor, thigh support, driver -
MSRA Motor, headlight-washer pump
MSZBF Motor, seat sled BACKWARDS, passenger
MSZFA Motor, seat sled BACKWARDS, driver
MTHL+ Mid-range speaker/tweeter, rear left +
MTHL- Mid-range speaker/tweeter, rear left -
MTHR+ Mid-range speaker/tweeter, rear right +
MTHR- Mid-range speaker/tweeter, rear right -
MUSPBF Make-up-mirror lighting, passenger
MUSPFA Make-up-mirror lighting, driver
MV+ Mid-range loudspeaker, front +
MV- Mid-range loudspeaker, front -
MVR Locking central-locking units
MVRBT Motor, central-l.unit, lock., pass. door
MVRFT Motor, central-l.unit, lock., driv. door
MWI1 Wiper motor, speed 1, via relay
MWI2 Wiper motor, speed 2, via relay
MZS Central-I. units, central double-locking
MZSFT Central-l.unit, cent.doub.-I., driv.door
M_AGF Ground, exhaust-backpressure sensor
M_AGR Ground, exhaust-gas recirculation
M_ANALOG Ground, sensor
M_ATF Ground, exhaust-gas-temperature sensor
M_AVT Ground, exhaust pressure upstr. of turbo
M_DDK Ground, thr.-valve pressure sensor
M_DDS Ground, differential-pressure sensor
M_DISA Ground, DISA activation
M_DK1GN1 Ground 1, throttle valve 1
M_DK1GN2 Ground 2, throttle valve 1
M_DK2GN1 Ground 1, throttle valve 2
M_DK2GN2 Ground 2, throttle valve 2
M_DKFW1 Ground, thr.-v.-sen.act.v.1-driv.request 1
M_DKFW2 Ground, thr.-v.-sen.act.v.2-driv.request 2
M_DKG Ground, throttle-valve potentiometer
M_DKPA Ground, power supply, thr.-v. pot.
M_DSK Ground, SK pressure sensor
M_EGST Ground, sensor, transm.-oil temperature
M_FGRM Ground, cruise-control stalk
M_FWG Ground, pedal-sensor
M_FWG1 Ground, pedal-sensor 1
M_FWG2 Ground, pedal-sensor 2
M_HFM Ground, air-mass flow sensor
M_KFK Ground, map cooling
M_KND Ground, presupply pressure sensor
M_KKU Ground, runn.losses, fuel-circ. sw.over
M_KS Ground, knock sensors
M_KS1 Ground, knock sensor 1
M_KS2 Ground, knock sensor 2
M_KS3 Ground, knock sensor 3
M_KS4 Ground, knock sensor 4
M_KWG Ground, crankshaft sensor
M_LAT Ground, lateral-acceleration sensor
M_LDF Ground, charge-air-pressure sensor
M_LGS Ground, idle switch
M_LHH1 Ground, ox.-s.heat. after cat., ri. bank
M_LHH2 Ground, ox.-s.heat. after cat., le. bank
M_LHV1 Ground, ox.-s.heat. bef. cat., ri. bank
M_LHV2 Ground, ox.-s.heat. bef. cat., le. bank
M_LLFS Ground, idle actuator
M_LS1 Ground, oxy. sensor, right bank, 12-cyl.
M_LS2 Ground, oxy. sensor, left bank, 12-cyl.
M_LSH1 Ground, oxygen sensor after cat. conv., bank 1
M_LSH2 Ground, oxygen sensor after cat. conv., bank 2
M_LSV1 Ground, oxygen sensor before cat. conv., bank 1
M_LSV2 Ground, oxygen sensor before cat. conv., bank 2
M_NBF Ground, needle-motion sensor
M_NWG Ground, camshaft sensor
M_NWGA1 Ground, exhaust-camshaft sensor 1
M_NWGA2 Earth, exhaust-camshaft sensor 2
M_NWGE1 Ground, intake-camshaft sensor 1
M_NWGE2 Ground, intake-camshaft sensor 2
M_NWG3 Ground, inlet-camshaft sensor 2
M_NWG4 Ground, exhaust-camshaft sensor 2
M_OTF Ground, oil temperature
M_PWG1 Ground and shield, pedal-travel sensor 1
M_PWG2 Ground and shield, pedal-travel sensor 2
M_PWG3 Ground and shield, pedal-travel sensor 3
M_RDS Ground, rail pressure sensor
M_SEN Ground, sensors
M_SEN1 Ground, sensors, right bank, 12-cyl.
M_SEN2 Ground, sensors, left bank, 12-cyl.
M_SLP Ground, secondary air pump
M_SLPV1 Ground, secondary air pump and valve
M_SLPV2 Ground, sec.air pump, sp.2 and/or valve
M_SLV Ground, secondary air valve
M_TANS Ground, intake-air temperature sensor
M_TEV Ground, tank-ventilation valve
M_TKA Ground, temperature, coolant outlet
M_TLL Ground, charge-air temperature sensor
M_TMOT Ground, coolant-temperature sensor
M_TMOT2 Ground, coolant-temperature sensor 2
M_VVTS1 Ground, sensor VVT
M_VVTS2 Ground, sensor VVT, bank 2
M_WHL Ground, converter, PDC, rear left
M_WHML Ground, converter, PDC, rear center left
M_WHMR Ground, converter, PDC, rear center right
M_WHR Ground, converter, PDC, rear right
M_WVL Ground, converter, PDC, front left
M_WVML Ground, converter, PDC, front center left
M_WVMR Ground, converter, PDC, front center right
M_WVR Ground, converter, PDC, front right
M_YAW Ground, speed sensor
M_ZS Ground, ignition coils
M_ZDG Ground, ignition