Mercedes-Benz ML320. Manual — part 555

The remaining distance is displayed with a resolution of 100 km.

If a speed limit is set at the cruise control, the speed limit appears for a short moment in the display before

the ASSYST text.

In the normal case, it is the remaining distance which is displayed. However, the time information is always
processed in the background to enable the attention of "low-mileage drivers" to be drawn to any service due.
The remaining distance is compared each day with the remaining time. In certain circumstances, the display
switches over, and it is the remaining time which is displayed (

see document "Remaining time").

If certain measured values are not supplied to the ASSYST system, e.g. because of failure of a sensor, it
switches over to stored substitute values. A corresponding entry is made in the fault memory of the relevant
control module.

The data are retained if the operating voltage is disconnected or fails.

REMAINING TIME FUNCTION - GF00.20-P-2008A

Active service system
(ASSYST) operating
information

Engines 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
as of 06.97 except engine
112, 113, 611
(Valid for engines with
oil level switch.)

GF00.20-P-0003-01B

Active service system
(ASSYST) display
facilities

GF00.20-P-0003-04A

Remaining time function

GF00.20-P-2008A

Engine oil monitor
function

Engines with oil sensor
(e.g. 112, 113, 611)

GF00.20-P-2009A

Model 210 as of 01.03.97
with engines 111, 602,
604, 605, 606
Model 129, 140, 170, 202
as of 06.97 except engine
112, 113, 611
(Valid for engines with
oil level switch.)

GF00.20-P-2009B

Displaying service
function

Model 129, 202 as of 8.99
Model 163 as of 1.00
Model 168 as of 9.99
Model 170 as of 12.99

GF00.20-P-2010B

2004 Mercedes-Benz ML350

1998-2005 GENINFO Overall vehicle - 163 Chassis

me

MODEL 129 as of 1.6.97

MODEL 140 as of 1.6.97

MODEL 163

MODEL 168

MODEL 170 as of 1.6.97

MODEL 202 as of 1.6.97

MODEL 208 up to 31.7.99

MODEL 210 as of 1.3.97 up to 30.6.99

Start time and remaining time

Start time refers to the service interval in days immediately after the oil change

The start time is not dependent on the driving conditions and any oil replenishments .

The start time is 730 days (

365 days).

The start time is automatically reset to its initial value by the oil change reset after each oil change. The start
time is an internal computed variable and cannot be displayed in the instrument cluster. It is possible to display
the start time with the HHT.

The remaining time is displayed in the instrument cluster under certain conditions as stated below.

The remaining time is the time which remains until the next service.

The remaining time is only of importance for "low-mileage drivers". (It is therefore the remaining distance
which is displayed as a general rule.)

The remaining time depends on:



the start time



the driving conditions (the distance driven is weighted in this case.)

Replenishing oil, however, does not have any influence on the remaining time.

As a result of these dependent factors, ASSYST proves to be a demand-oriented system even for "low-mileage
drivers". Depending on the weighting of the factors, the service interval for "low-mileage drivers" is between 1
and 2 years.

2004 Mercedes-Benz ML350

1998-2005 GENINFO Overall vehicle - 163 Chassis

me

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
information

Engine 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

ENGINE OIL MONITOR FUNCTION - GF00.20-P-2009A

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.

as of 06.97 except engine
112, 113, 611
(Valid for engines with
oil level switch.)

Active service system
(ASSYST) display
facilities

GF00.20-P-0003-04A

Remaining distance
function

GF00.20-P-2007A

Engine oil monitor
function

Engine with oil sensor
(e.g. 112, 113, 611)

GF00.20-P-2009A

Model 210 as of 01.03.97
with engines 111, 602,
604, 605, 606
Model 129, 140, 170, 202
as of 06.97 except engine
112, 113, 611
(Valid for engines with
oil level switch.)

GF00.20-P-2009B

Displaying service
function

Model 129, 202 as of 8.99
Model 163 as of 1.00
Model 168 as of 9.99
Model 170 as of 12.99

GF00.20-P-2010B

2004 Mercedes-Benz ML350

1998-2005 GENINFO Overall vehicle - 163 Chassis

me