1997 MERCEDES-BENZ ML320 engine

maintenance schedule air filter maintenance headlight aiming fuel type TPMS reset

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MERCEDES-BENZ ML320 1997 Complete Repair Manual of repairs or for service fills.
2.6 Transmission oils, sheet 235.11
The fully synthetic gear oils are approved for all MB commercial vehicle manual transmissions installed
in MB vehicles with ste

of repairs or for service fills.
2.6 Transmission oils, sheet 235.11
The fully synthetic gear oils are approved for all MB commercial vehicle manual transmissions installed
in MB vehicles with steel/molybdenum synchronization with and without oil coolers, in MB transfer
cases with and without oil coolers as well as in ZF manual transmissions with steel/molybdenum
synchronization.
Due to the favorable viscosity/temperature characteristics, a good cold-shifting response and, due to the
composition of the transmission oil, a good thermal/oxidative stability of the oil at high transmission oil
temperatures as well as a fuel savings potential depending on the operating conditions can be expected.
2.7 Engine oils, sheet 235.12
The engine oils must be used with a common oil system for transmissions used in tropical countries, and
for manual transmissions with a torque converter and clutch unit. These engine oils display the very high
seizure resistance required for use in transmissions. The oils need not comply with the engine oil pour
point specifications in these Specifications for Operating Fluids.
2.8 Engine oils, sheet 235.27
Commercial vehicle retarder oils: the products listed in the tables apply to commercial vehicle
transmissions: see MB Specifications for Operating Fluids 231.2. The engine oils are suitable for retarder
use. The oils need not comply with the engine Specifications for Operating Fluids 231.2. The engine oils
are suitable for retarder use. The oils need not comply with the engine oil pour point specifications in
these Specifications for Operating Fluids.
3. Automatic transmission fluids (ATF), sheet 236.1/.2/.3/.5/.6/.7/.8/.81/.9/.10/.11/.12/.13/.20
ATFs are comparatively low-viscosity gear oils which, due to their universal use potential as a gear oil or
a hydraulic fluid, can cover a wide spectrum of applications. The ATFs in the individual their universal
use potential as a gear oil or a hydraulic fluid, can cover a wide spectrum of applications. The ATFs in the
individual sheets differ essentially due to their inherent friction coefficients in tribological contact. This
property predestines these oils as function fluids for automatic transmissions whose ease of shifting,
among other things, is considerably affected by the friction coefficient of the ATF. Therefore, to achieve
optimum performance of the vehicles, only the ATF quality (sheet no.) assigned to the major assembly is
to be used. The individual ATF qualities will be described in greater detail below.
3.1 Automatic transmission fluids (ATF), sheet 236.1
The approved ATF correspond to the currently no longer valid GM specification Dexron II-D or the
currently valid GM specification Dexron III.
The field of application of these ATF includes MB automatic transmissions without controlled torque
converter lockup clutch in passenger cars, ZF Ecomat transmissions, Allison automatic transmissions,
Voith-Diwa transmissions and MB automatic transmissions in commercial vehicles and busses except

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Page 3149 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual W4B035.
3.2 Automatic transmission fluids (ATF), sheet 236.2 , for MB passenger car and commercial vehicle
transmissions with non-ferrous metal synchronization except front-wheel drive manual transm

W4B035.
3.2 Automatic transmission fluids (ATF), sheet 236.2 , for MB passenger car and commercial vehicle
transmissions with non-ferrous metal synchronization except front-wheel drive manual transmissions of
the A-Class (see Section 2.5, Sheet 235.10), Allison transmission, commercial vehicle power steering,
hydraulic fan drive.
The ATF must meet all the requirements of the transmissions with nonferrous metal synchronization.
These include, in particular, wear protection against pitting and seizure as well as a defined friction
coefficient of the synchronizer components that is as constant as possible over the entire service life. As a
hydraulic fluid, the ATF is used for hydraulic power transmission and for protecting the hydraulic
assemblies from wear. The seal compatibility must be ensured with all elastomer materials used.
If the approved ATF are not available, engine oils according to sheet 227.0, SAE 10W or, depending on
the outside temperature, 20W-20 can be used in the above-mentioned synchronized manual transmissions
as a makeshift measure (queries should be directed to the Abt. Betriebstoffe EP/QWB (EP/QWB
Operating Fluids Dept.).
The approved ATF according to Sheet 236.2 correspond to the currently no longer valid GM specification
Type A Suffix A. The kinematic fresh oil viscosity at 100°C must be at least 7.0 mm
2 /s, after shearing
(as per CEC- TLPG 7) at least 6.0 mm
2 s.
3.3 Steering gear oil, sheet 236.3 , for all commercial vehicle steering systems, except vans T0 and T1N,
power steering systems for passenger cars, except
S-Class W220, power pack of the A-Class, and cross-country vehicles, manual steering L 075 Z for
passenger cars and manual steering in cross-country vehicle.
In the S class W220, in the Power-Pack of the A class as well as in the Transporters T0 and T1N as
of/below outside temperatures of 25°C the hydraulic fluids according to sheet 345.0 must be used.
3.4 Automatic transmission fluids (ATF) and/or engine oils, sheet 236.5 , for Allison transmission HAT
700
The oils listed here correspond to the Allison-C4 specification. Allison automatic transmissions in makes
AT 500, MT 600, S1000, S2000, World Transmission MD 3000, HD 4000 must only be filled with the
oils specified in Sheet 236.9 or TES 295.
If prior to starting the vehicle the gear oil temperature is below the critical temperature for the oil used,
then either the gear oil should be prewarmed or the transmission should be warmed up while in neutral.
Automatic transmissions in the model series CLBT 750 must only ever be filled with oils according to
Sheet 236.5. Under extreme operating conditions or for off-road use and/or with outside temperatures
higher than 30°C an engine oil of SAE grade 30 and/or 15W-40 from Sheet 236.5 should be used.
Depending on the outside temperature during vehicle operation, the oils used must be selected from the
followin
g diagram according to their SAE viscosity class and/or Dexron specification:

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Page 3158 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual This table only serves as an overview!
• Should be used.
o Can be used.
When changing to a different oil:
Change service life factors in the maintenance system (WS) and pay attention to specifi

Page 3159 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual AUTOMATIC TRANSMISSION FLUIDS (ATF, SHEET 236.6) - BB00.40-P-0236-06A
automatic
transmission
MB
automatic
transmission
W 4 B 035
6.)
ATF ••
Voith/ZF
automatic
transmissionATF•

Page 3165 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual COOLANT SPECIFICATIONS - BB00.40-P-0310-01A
1.Coolant
1.1 Coolant composition
1.1.1 Passenger car and commercial vehicle engines (normal case)
50 vol.-% Water
50 vol.-% Anticorrosion/antifreeze

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MERCEDES-BENZ ML320 1997 Complete Repair Manual Scope: With constant ambient temperatures above freezing point.
1.1.3 Commercial vehicle engines (exception, not for engines OM 500, OM 900, OM 457 and OM
460)
99 vol % Water
1 vol % Refining agen

Scope: With constant ambient temperatures above freezing point.
1.1.3 Commercial vehicle engines (exception, not for engines OM 500, OM 900, OM 457 and OM
460)
99 vol % Water
1 vol % Refining agent (see Sheet 311.0)
Scope: For constant ambient temperatures above freezing point, e.g. in tropical regions, in which it can be
proven that no approved anticorrosion/antifreeze agents and coolant additives according to Sheet 312.0
are available.
Passenger-car engines, which are installed in a commercial vehicle, must always be filled up as for a
passenger-car engine, refer to points 2.1/2.2.
A quick-glance overview of the fields of application for the approved coolant additives and the
prescribed change intervals are available in Section 5. Please note the mixing prohibition for Sheets 325.3
and 326.3!
1.2 Water
1.2.1 Fresh-water regulations/water treatment
Clean, and where possible, not too hard water should be used for processing the coolant. Drinking water
frequently, although not always, complies with the given specifications.
Sea water, brackish water, brine and industrial waters are not suitable. The level of water containing
dissolved substances can vary greatly depending upon its origin (ground, spring, surface water) and it is
of major significance regarding the presence of corrosion.
Water that is too hard is disadvantageous because of the possibility of scaling or sludging occurring. Salt
content, predominantly chloride, greatly promotes corrosion. If in doubt, analyze the water.
Information concerning the water quality of drinking water is available from the local water-plant
authorities or the official water utilities on request.
If there is no available information regarding the quality of the drinking water then distilled or deionized
water should be used.
If the water fails to comply with the approved analysis values, then it is be processed in a suitable
manner, because even excellent anticorrosion/antifreeze agents are greatly impaired in their ability to
protect against corrosion if water quality is poor.
Should it not be possible to soften the water then the water should be brought up to an approved hardness
by an admixture of soft or distilled (deionized) water.

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Page 3167 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual If the chloride or total ionic content of the water is too high, then the level can be reduced through the
admixture of demineralized, in other words, ion-exchanged or distilled water.
Particular tr

If the chloride or total ionic content of the water is too high, then the level can be reduced through the
admixture of demineralized, in other words, ion-exchanged or distilled water.
Particular treatment processes will need to be used (desalination and demineralization or subprocesses)
depending upon the contaminants present in the water. Information on how to conduct water treatment is
available from water plants or water utilities as well as several companies and engineering consultants
who are experienced in this area.
Depending upon the coolant composition, the analysis values for the water should lie within the following
limits:
1.2.2 Fresh-water quality for coolant composition as under item 1.1.1 (passenger-cars and
commercial-vehicle engines)
Sum total of alkalis (water hardness): 0 to 3.6 mmol/l (0 up to 20° d)*
pH value at 20°C: 6.5 up 8.5
Chlorine ion content: max. 100 mg/l
Total chlorides and sulfates: max. 200 mg/l
1.2.3 Fresh-water quality for coolant composition as under item 1.1.2/1.1.3 (commercial-vehicle
engines)
Sum total of alkalis (water hardness): 0 to 2.7 mmol/l (0 up to 15° d)*
pH value at 20°C: 6.5 to 8.0
Chlorine ion content: max. 80 mg/l
Total chlorides and sulfates: max. 160 mg/l
If in doubt, contact DaimlerChrysler AG, department EP/MOR (operating fluids), C 405, D-70546
Stuttgart, Germany.
* Customary designations for water hardness in various countries: 1 mmol/l=5.6° d=10° f=7.02° e=100
mg/kg Ca CO.
3.
1° d (German degree =1° dGH)=1.78° (French degree)=1.25° e (English degree )=17.9 mg/kg Ca CO
3
(USA hardness).
1.3 Premixed coolant
Several providers have water with premixed coolant in their product range. Provided they are approved
(see below), the
y can also be used; the regulations relating to application, composition, change intervals,

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Page 3168 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual etc. of these coolant specifications also apply. It is imperative that the correct concentration (50/50) is
used in their application and, of course, further dilution is not permitted!
Approval stat

etc. of these coolant specifications also apply. It is imperative that the correct concentration (50/50) is
used in their application and, of course, further dilution is not permitted!
Approval status:
Coolants for all vehicle and engines (Basis 325.0) Sheet 326.0
Coolants for commercial vehicle and industrial engines (Basis 325.2) Sheet 326.2
Coolants for commercial vehicle and industrial engines (Basis 325.3) Sheet 326.3
The regulations for each respective Sheet 325.x are to be transferred correspondingly to Sheet
326.x.
At the time of compiling these regulations it is possible that not all the Sheets 326.x are represented with
approved products.
2.Coolant additives (General information)
Normally, coolant consists of water and anticorrosion/antifreeze agents. The anticorrosion/antifreeze
agents (ethylene glycol with corrosions inhibitors) in the cooling system have to fulfill, among other
things, the following functions:
to provide sufficient corrosion and cavitation protection for all cooling system components
freezing point depression (antifreeze)
increasing boiling point
For corrosion protection purposes the coolant
approx. 50 vol.-% Anticorrosion/antifreeze agents are added if the expected ambient temperatures do not
require an even higher concentration. This concentration (50 vol %) offers frost protection up to approx. -
37°C. A higher concentration is only necessary if the ambient temperatures are even lower.
Even with extremely low ambient temperatures, not more than 55 vol.-% anticorrosion/antifreeze agent
should be used, because at this level the maximum antifreeze protection is reached and a greater
concentration reduces the antifreeze protection again and decreases the heat dissipation (55 vol.-%
corresponds to antifreeze protection down to approx. -45°C).
Should these coolant regulations fail to be observed then corrosion and damage to the cooling
system are inevitable.
The admixture of anticorrosion/antifreeze agent serves to increase the boiling point. By raising the
pressure the boiling temperature can be increased yet further. Both physical relationships are put to use in
modern cooling systems - the maximum coolant temperature is raised, without increasing the danger of
boiling. In keeping with the higher temperature level the cooling performance is also greater. Only
approved products (Sheet 325.0/326.0 or 325.2 or 326.2, 325.3 or 326.3 as well as 312.0 or 311.0)

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