GF00.20-P-2009A
Engine oil monitor function
24.10.96
MODEL
129 with ENGINE 112, 113
MODEL
163 with ENGINE 112, 113, 612
MODEL
168 with ENGINE 166, 668
MODEL
202 with ENGINE 112, 611
MODEL
208 up to 31.7.99 with ENGINE 112, 113
MODEL
210 up to 30.6.99 with ENGINE 112, 113, 611
General
The oil level is constantly monitored by the oil sensor, and the
appropriate data transmitted to the processor by the ASSYST.
Oil replenishments are detected automatically and result in a bonus,
which extends the service interval accordingly.
An excess oil level or insufficient oil level appears in the display
together with the oil can symbol.
Display of low oil level at maximum:
D
at driver request
Display of warnings: D
automatically, at the earliest 60 s after engine start and oil
temperature greater than 60°C:
D
if oil level too high: the oil can symbol appears together
with the readout "OIL LEVEL ABOVE MAX". In addition, a
brief warning signal sounds. (On models not fitted with
multifunction displaly, "HI" appears flashing.)
D
if oil level too low: the oil can symbol appears together with
the readout "OIL LEVEL BELOW MIN". In addition, a brief
warning signal sounds. (On models not fitted with multifunction
display, the oil level warning lamp (A1e12) comes on and the
readout "-2L" appears flashing.)
-----------------------------------------------------------------------------------------
D
if oil at minimum: the oil can symbol appears together with
the readout "OIL LEVEL MINIMUM". In addition, a brief
warning signal sounds. (On models not fitted with multifunction
display, the oil level warning lamp (A1e12) comes on.)
D
automatically 13 s after ignition ON:
D
if
no oil
is in engine: the oil can symbol appears together
with the readout "OIL LEVEL BELOW MIN". In addition, a
warning signal sounds. (On models not fitted with multifunction
display, the oil level warning lamp (A1e12) comes on and the
readout "-2L"appears flashing. In addition a brief warning
signal sounds.)
The missing oil quantity displayed no longer changes during the
display. In other words, any change in oil level cannot be observed
directly at the display. The new oil level is only displayed once the
conditions described below exist.
Display of oil quantity at driver request
The text "DISPLAY OIL LEVEL?" appears 10 s after the start switch
has been turned into position "2" (on models not fitted with
multifunction display, the oil can and the clock symbol are displayed).
If the reset button of the trip counter is pressed twice within one sec.
during this readout, for example, "add 1.0L oil" (or "-1.0L")
-----------------------------------------------------------------------------------------
appears in the display if oil level too low. The readout appears only
after the elapse of a waiting time after engine OFF. The waiting time
depends on the engine oil temperature.
It is
D
up to 20°C
30 minutes
D
from 60°C
1 minute
D
The waiting time is between these two limits at other engine oil
temperatures.
Possible readouts are (text in parenthesis relates to models not fitted
with multifunction display.):
D
"OIL LEVEL OKAY" ("o.k."),
D
1.0L, 1.5L, 2L,
D
"Overfilling" ("HI"),
D
"OBSERVE WAITING TIME" (clock symbol flashing and oil can
symbol),
D
"DISPLAY OIL LEVEL" (clock and oil can symbols.)
If there is a fault at the oil sensor (oil level/temperature/quality, B40)
the oil can symbol and the text "OIL LEVEL SENSOR FAULTY"
appears only 30 s after the fault has occurred.
(On models not fitted with multifunction display, the oil level warning
lamp (A1e12) comes on accordingly.)
For diagnosis, read also the injection system control module (N3)
with the HHT. (The instrument cluster (A1) receives the sensor data
through the CAN from the injection system control module (N3)).
-----------------------------------------------------------------------------------------
Oil change
The ASSYST has to be reset each time the oil is changed. Resetting
ASSYST also resets the remaining time and the remaining distance.
Resetting can be performed at the instrument cluster or using the
HHT.
The following data are stored when the system is reset:
D
current kilometer reading rounded off to 100,
D
total oil replenishments in the last interval,
D
remaining distance,
D
remaining time,
D
product of the quality factors,
D
the data of the last 5 resettings in 5 data sets
These data can only be read with the HHT!
If the specified quantity of oil is not replenished when the oil is
changed, the (internal) start distance is reduced.
Detecting oil replenishments
D
With the
HHT
it is possible to retrieve the last 10 oil
replenishments and the corresponding kilometer readings of
the current interval.
D
In the normal case, detection of an oil replenishment is
displayed by the remaining distance in the instrument cluster
being extended
-----------------------------------------------------------------------------------------
Copyright DaimlerChrysler AG 05.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1
Fig. 82: Identifying Cylinder Head Remove/Install Components - Shown On Model 163.154 With Engine
112 (3 Of 3)
Remove/install
Notes on self-locking
nuts and boltsAll modelsAH00.00-N-0001-
01A
External torx setFig. 49
Torx bit setFig. 48
Risk of explosion
caused by
oxyhydrogen gas.
Risk of poisoning
and caustic burns
caused by
swallowing battery
acid. Risk of injury
caused by burns to
skin and eyes from
battery acid or when
handling damaged
lead-acid batteriesNo fire, sparks, open fl ames or smoking. Wear
acid-resistant gloves, clothing and safety
glasses. Only pour batter y acid into suitable and
appropriately marked containers.AS54.10-Z-0001-
01A
1Disconnect battery
ground cable Installation: After connecting, read out
fault memory, encode radio and normalize
power windows.
Vehicles with stationary heater: Set clock of AR54.10-P-
0003A
2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 84 © 2006 Mitchell Repair Information Company, LLC.
Fig. 316: Identifying 14-Pin MLK Plug
ACTIVE SERVICE SYSTEM (ASSYST) OPERATING NOTES - GF00.20-P-0003-01A
Displaying remaining distance, remaining time or service exceeded when vehicle stationary or when
driving on driver request:
Wake-up instrument cluster.
Start switch in position "2" or driving.
Operate reset button for trip counter twice within 1 s: the current remaining distance, the current
remaining time or the current service exceeded appears.
Displaying oil level at driver request:
After start switch in position "2", wait 10 s until "DISPLAY OIL LEVEL" text and oil can symbol (or oil
can and clock symbol) appears.
Press reset button for trip counter twice within 1 s: the message "OIL LEVEL OKAY" (or "O.K.") or the
current missing oil quantity appears. If correct oil level measurement is not possible, the text "OBSERVE
WAITING TIME" appears (or the clock s
ymbol and the oil can symbol; the clock symbol flashes).
Notes on replacement of
safety-relevant and special
componentsModel 124, 126, 129,
140, 163, 164, 168, 169,
170, 171, 199, 202, 203,
208, 209, 210, 211, 215,
216, 219, 220, 221, 230,
240, 245, 251, 414, 461
as of 1.4.94, 463AH00.19-P-1000-08A
Notes regarding plug
connections AH00.19-P-1000-06A
Remove contacts from
mini laminated contact
coupling AR00.19-P-0120-26A
Remove contacts from
mini laminated contact
plug AR00.19-P-0120-27A
2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:47 PMPage 195 © 2006 Mitchell Repair Information Company, LLC.
Warning threshold (in days)
With the HHT it is possible to set a warning threshold of between 5 and 30 days for the remaining time, with a
stepwidth of one day. The basic setting is 30 days.
Display of remaining time
The remaining time is always only displayed in those cases where the following condition is met:
Remaining time (in days) x 40 < remaining distance (in km), and the warning threshold is reached.
The remaining time is displayed in the following cases:
automatically, after 5 s start switch in position 2 or driving, if the warning threshold is reached:
The service symbol and the readout "SERVICE IN ... DAYS" appears for 10 seconds. (On vehicles not
fitted with multifunction display, the current remaining time, the service and the clock symbol appear.)
automatically, after 5 s start switch in position 2 or driving, if the remaining time is exceeded:
The service symbol and the readout "DAYS ... EXCEEDED" appears for 30 s (for 10 s up to mid-July
97). (On vehicles not fitted with multifunction display, the service and the clock symbol appear. The
"remaining time" is displayed with a negative sign (minus sign). The readout flashes in this case.)
After the display reaches the maximum readout of -730 days, the readout remains at this figure! The
readout is displayed with a resolution of 1 day.
As of approx. 06.97 a brief warning signal sounds in addition.
at driver request. The readout is then displayed, as above, for 10 s.
If a speed limit is set at the cruise control, this speed limit is displayed for a short moment before the
ASSYST display.
If certain measured values are not supplied to the ASSYST, e.g. because of failure of a sensor, it switches to
stored substitute values. An appropriate entry is then made in the fault memory of the particular control module.
If the power supply fails, the data are retained. The times without operating voltage (battery disconnected) are
not recorded, however! They can be retroactively included, however, with the HHT.
Active service system
(ASSYST) operating
informationEngine with oil sensor
(e.g. 112, 113, 611)GF00.20-P-0003-01A
Model 210 as of 01.03.97
with engines 111, 602,
604, 605, 606
Model 129, 140, 170, 202 GF00.20-P-0003-01B
2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:47 PMPage 208 © 2006 Mitchell Repair Information Company, LLC.
An excess oil level or insufficient oil level appears in the display together with the oil can symbol.
Display of low oil level at maximum:
at driver request
Display of warnings:
automatically, at the earliest 60s after engine start and oil temperature greater than 60°C:
if oil level too high: the oil can symbol appears together with the readout "OIL LEVEL ABOVE
MAX". In addition, a brief warning signal sounds. (On models not fitted with multifunction
display, "HI" appears flashing.)
if oil level too low: the oil can symbol appears together with the readout "OIL LEVEL BELOW
MIN". In addition, a brief warning signal sounds. (On models not fitted with multifunction display,
the oil level warning lamp (A1e12) comes on and the readout "-2L" appears flashing.)
if oil at minimum: the oil can symbol appears together with the readout "OIL LEVEL MINIMUM".
In addition, a brief warning signal sounds. (On models not fitted with multifunction display, the oil
level warning lamp (A1e12) comes on.)
automatically 13 s after ignition ON:
if no oil is in engine: the oil can symbol appears together with the readout "OIL LEVEL BELOW
MIN". In addition, a warning signal sounds. (On models not fitted with multifunction display, the
oil level warning lamp (A1e12) comes on and the readout "-2L" appears flashing. In addition a
brief warning signal sounds.)
The missing oil quantity displayed no longer changes during the display. In other words, any change in oil level
cannot be observed directly at the display. The new oil level is only displayed once the conditions described
below exist.
Display of oil quantity at driver request
The text "DISPLAY OIL LEVEL?" appears 10 s after the start switch has been turned into position "2" (on
models not fitted with multifunction display, the oil can and the clock symbol are displayed).
If the reset button of the trip counter is pressed twice within one sec. during this readout, for example, "add 1.0L
oil" (or "-1.0L")
appears in the display if oil level too low. The readout appears only after the elapse of a waiting time after
engine OFF. The waiting time depends on the engine oil temperature.
It is
up to 20°C 30 minutes
from 60°C 1 minute
The waiting time is between these two limits at other engine oil temperatures.
2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:47 PMPage 210 © 2006 Mitchell Repair Information Company, LLC.
Possible readouts are (text in parenthesis relates to models not fitted with multifunction display.):
"OIL LEVEL OKAY" ("o.k."),
1.0L, 1.5L, 2L,
"Overfilling" ("HI"),
"OBSERVE WAITING TIME" (clock symbol flashing and oil can symbol),
"DISPLAY OIL LEVEL" (clock and oil can symbols.)
If there is a fault at the oil sensor (oil level/temperature/quality, B40) the oil can symbol and the text "OIL
LEVEL SENSOR FAULTY" appears only 30 s after the fault has occurred.
(On models not fitted with multifunction display, the oil level warning lamp (A1e12) comes on accordingly.)
For diagnosis, read also the injection system control module (N3) with the HHT. (The instrument cluster (A1)
receives the sensor data through the CAN from the injection system control module (N3)).
Oil change
The ASSYST has to be reset each time the oil is changed. Resetting ASSYST also resets the remaining time and
the remaining distance. Resetting can be performed at the instrument cluster or using the HHT. The following
data are stored when the system is reset:
current kilometer reading rounded off to 100,
total oil replenishments in the last interval,
remaining distance,
remaining time,
product of the quality factors,
the data of the last 5 resettings in 5 data sets
These data can only be read with the HHT!
If the specified quantity of oil is not replenished when the oil is changed, the (internal) start distance is
reduced.
Detecting oil replenishments
With the HHT it is possible to retrieve the last 10 oil replenishments and the corresponding kilometer
readings of the current interval.
In the normal case, detection of an oil replenishment is displayed by the remaining distance in the
instrument cluster being extended
Oil replenishments are always only detected once the following conditions are met:
the replenished quantit
y is at least
2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:47 PMPage 211 © 2006 Mitchell Repair Information Company, LLC.
PERFORMING BASIC PROGRAMMING - AR00.19-P-0200GH
MODEL 163
Remove contacts from 2.5
solder contact coupling
round plug contact AR00.19-P-0120-17A
Remove contacts from
laminated contact system
plug AR00.19-P-0120-20A
Remove contacts from
laminated contact system
coupling AR00.19-P-0120-19A
Remove contacts from
Micro Timer 3 coupling AR00.19-P-0120-06A
Remove contacts from
Siemens ELO plug AR00.19-P-0120-24A
Remove contacts from
Siemens ELO coupling AR00.19-P-0120-23A
Remove contacts from
Multi-Contact-Point-
coupling AR00.19-P-0120-09A
Remove contacts from
mini laminated contact
coupling AR00.19-P-0120-26A
Remove contacts from
mini laminated contact
plug AR00.19-P-0120-27A
Remove contacts from
YAZAKI 1.5 system
coupling461 as of 1.4.94AR00.19-P-0120-28A
Adjusting
1Set time on instrument
cluster See Operating
Instructions
2Set clock of stationary
heater See Operating
Instructions
3Normalize side power
windows See Operating
Instructions
4Activate steering angle
sensor Electronic stability
program (ESP) Code
(472a) as of 1.9.98.
Refer also to operating
instructions.AR46.10-P-0300-01A
2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:52 PMPage 394 © 2006 Mitchell Repair Information Company, LLC.
AD54.30-P-2000-02GC
Notes on HHT previous knowledge diagnosis
IC
HHT :
The instrument cluster and active service system (ASSYST) sub-
function are checked with HHT, there being the choice of the
following functions for this:
1. Control module version
2. Fault memory
3. Actual values
4. Actuations
5. Control module adaptation
Additional information on test items 2, 3 and 5 can be called up using
the INPUT key
Control module adaptation
The following alternatives are available in the HHT under control
module adaptation:
1.)
Read out coding and transfer to new instrument cluster. IC and
ASSYST.
2.)
Read out/change codings e.g.:
Engine and national variants,
version of fuel tank,
special equipment etc.
3.)
Settings:
1
Clock
2
Put forward kilometer reading
3
Put back kilometer reading
4
Oil change
5
Reset oil change initiated inadvertently
6
Active Service System
7
Enter times with battery disconnected
8
Set minimum oil warning
Before replacing a defective instrument cluster, readout the existing
variant codings (driving data and instrument cluster data) and store in
the HHT on an interim basis. Read in the values stored on an interim
basis again after installing the new instrument cluster.
If it is not possible to read out the stored variant coding, all variant
codings must be input manually (menu-assistance in HHT).
When installing an instrument cluster on an experimental basis, do
not put forward the kilometer reading as it cannot be put back later.
Copyright DaimlerChrysler AG 05.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1