1997 MERCEDES-BENZ ML350 check engine

RENDER NEW VEHICLES, WHICH WERE IMMOBILIZED OPERATIONAL - AP00.70-P-1001ZZ
MODEL 129, 140, 163, 168, 170, 202, 203, 208, 209, 210, 211, 215, 220, 230, 240
MODEL 461.302 /332 /342 /345
MODEL
463.200 /204 /206 /207 /208 /209 /220 /221 /224/225 /227 /228 /230 /231 /232 /233 /240 /241 /243 /244 /245 /2
4
servicerecommend that the
vehicle fuel tank is
completely filled. Then
allow gasoline engines to
run warm for 2-3 minutes.
Notes on paintwork,
decorative and detachable
components AH98.00-P-9019-01Z
if necessary, corrosion
protection after painting
(Section D) AP98.00-P-0641A
1Perform delivery
inspection
2Check battery AR54.10-P-1129-01A
3
+Vent stationary heater and
top up coolantModel 163, 168, 170, 202,
203, 208, 209, 210, 211,
215, 220, 230, 240, 461,
463
Models 129, 140 with
stationary heater, code 228ra83001291165x
4Check fluid level of
engine cooling system,
correct if necessary and
check corrosion protection
as well as antifreeze and
correct if necessaryModel 129, 140, 163, 168,
170, 202, 203, 208, 209,
210, 211, 215, 220, 230,
240
Model 463 with engine
112, 113AP20.00-P-2010GA
Models 461, 463 with
engines 102, 103, 104,
117, 602, 603, 606, 612,
628AP20.00-P-2010G
Risk of accident caused
by vehicle starting off by
itself when engine is
running. Risk of injury
caused by contusions and
burns during starting Secure vehicle to prevent
it from moving. Wear
closed and snug-fitting
work clothes. Do not grasp
hot or rotating parts.AS00.00-Z-0005-01A

2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:52 PMPage 406 © 2006 Mitchell Repair Information Company, LLC.

procedure or when
working near engine
5Start engine Allow to run at idle
speed until oil pressure is
displayed.
6Check refrigerant level of
air conditioning systemModel 129 up to 31.5.96
with automatic air
conditioning, code 581a,AP83.30-P-8312DA
Model 140 up to 31.5.95
with automatic air
conditioning, code 581a
with rear air conditioner,
code 582,
Model 202 up to 30.9.95
with automatic air
conditioning, code 581a,
Models 129, 170, 202,
208, 210, 220 with air
conditioning (or
Tempmatic for USA),
code 580
Models 461, 463 with air
conditioning, code H02AP83.30-P-8312G
7Move the pull switch of
the hydropneumatic
suspension into position N
and allow the engine to
run at increased idle speed
until the vehicle has
reached its normal levelOnly for Hydropneumatic
suspension with automatic
level lowering device and
controlled damping, code
215c, All-round
hydropneumatic
suspension, code 487
8Brake testing on test standModel 129, 140, 170, 202,
203, 208, 209, 210, 215,
220AP42.00-P-4290BA
Models 461, 463AP42.00-P-4290G
9Check brake disks for
signs of corrosion. For vehicles which
were parked for more than
6 months.
10Replace brake fluid For vehicles which
were parked for more than
6 months.
Model 140 as of 1.7.93
except code 471AP42.00-P-4280BA
Model 170 except code
471
Model 202 up to 31.5.94
except code 471

2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:52 PMPage 407 © 2006 Mitchell Repair Information Company, LLC.

Overview Section 5). However, it should always be remembered that anticorrosion/antifreeze
a
gents or coolants conforming to Sheet 325.3 and 326.3 must not be mixed with those conforming to
Sheet 325.0 or 326.0 or 325.2 and 326.2.
2.3 Coolant additives for commercial-vehicle en
gines without antifreeze specifications (refer to item
1.1.2) (not: BR 600, BR 100 and BR 200)
In those application cases where no antifreeze is necessary, coolant for commercial-vehicle engines as
under item 1.1.2 can be mixed to suit. It is impossible to cite generalized mixing proportions because the
application concentrations of products included in Sheet 312.0 may be different. If the tolerances exceed
or fall below those given in Sheet 312.0, then appropriate adjustments must be made. The coolant's
boiling point is only insignificantly increased by these additives. The starting-off water underlies the
more stringent regulations as under point 1.2.3. The usage period for this coolant is shorter than usual (see
position 3). If it is necessary to refill, the same product must be used and at the same concentration level.
The blending of different products is not permitted as stated in Sheet 312.0.
2.4 Coolant regulations for commercial vehicle engines (exception, not for engines OM 500, OM
900, OM 457 and OM 460)
In the event that neither an approved anticorrosion/antifreeze agent is available, nor a coolant additive in
accordance with sheet 312.0 and if temperatures do not drop below freezing then it is possible in this
exceptional case to use a coolant refining agent to 1 vol % if it is approved in sheet 311.0 (soluble
corrosion protection oil). This will not raise the boiling point. The starting-off water itself underlies the
more stringent regulations as under point 1.2.3.
The period of usage for this coolant, which may only be used in exceptional circumstances, is shorter than
usual (refer to position 3).
Water that is too hard may impair the emulsion resistance, with the result that the emulsion
breaks down (oil separation) and the engine's water jackets are contaminated.
2.4.1 Applying water refining mixture
When carrying out a new filling (initial filling or filling after a cleansing operation) an emulsion of 1.0-
1.5 vol % should be used. When refilling, an emulsion of 0.5-1.0 vol % should be used. Concentrations
that are too high (>1.5 vol %) do not improve the corrosion protection capability and may exert a negative
influence on seals and hoses.
3.Monitoring coolant operation
It is very important to monitor the coolant constantly if the engine is to run trouble free.
The concentration level should be checked every six months.
The inspection should be conducted with suitable apparatus. If, when monitoring the concentration of the
coolant, it is determined that the concentration of anticorrosion/antifreeze agent has reached 40 vol.% or
less or an antifreeze protection of -28°C is no lon
ger guaranteed, the concentration must be increased to

2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:57 PMPage 525 © 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
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Page 1

AP82.10-P-8260GH
Check and correct headlamp adjustment
2.7.97

MODEL
163

a=Marking for low beams

b=Marking for high beams

c=Marking for fog lamps

P82.10-0212-02


Check

1
Drive vehicle to level surface
The vehicle level must not change when the

brakes are applied.

Vehicle must be in ready-for-the-road

condition (unladen weight, fuel tank full or

proper additional weight).

Correctly adjust tire pressure.

Load driver's seat with 75 kg or a person

(except USA)

2
Align headlamp adjustment tester to vehicle

and adjust height according to marking in lens

Follow the operating instructions for

headlamp beam setting equipment exactly

*WH58.30-Z-1002-09A


Danger!

Risk of accident
from vehicle starting off by

itself when engine running.
Risk of injury


suffered in the form of bruises or burns to the

hands when reaching in while the engine

cranks or runs
Secure vehicle to prevent it from moving off

by itself.

Wear closed and close-fitting work clothes.

Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

3
Run engine and switch on low beam

4
Check headlamp range control for proper

function
(except USA)


The light beams from both headlamps should

change uniformly

5
Set headlamp range control switch to position 0

6
Check low beams
Adjust if necessary (except USA)

AP82.10-P-8260-01A


Due to the common reflector unit, the low

beams, high beams and fog lamps are

adjusted simultaneously.

US version:
#

See "Owner's Manual"

7
Check high beam adjustment

AP82.10-P-8260-02A

8
Check fog lamps

AP82.10-P-8260-04A

Commercially available tools
(see Workshop Equipment Manual)

Number

Designation
Make (e.g.)
Order number

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Page 1

AF18.00-P-8044D
High oil consumption
12.3.01

ENGINE
112 in MODEL 129, 163, 170, 202, 203, 208, 210, 220

ENGINE
113 in MODEL 129, 163, 202, 208, 210, 215, 220

ENGINE
112, 113 in MODEL 463

Damage code
Cause
Remedy

Studies on engines 112/113 due to

excessive engine oil consumption have
indicated to date that excessive engine oil

consumption is not a general subject, but

rather can result from various causes.

The causes listed below may cause

excessive engine oil consumption individually

or in combination.

For commercially available tools for see

Workshop Equipment Manual

Cause 1:
Remedy 1:

00 001 70
Cast iron crust in right cylinder head behind

oil drain opening
1
Remove cast iron crust

AF18.00-P-8045A

Cause 2:
Remedy 2:

00 001 70
V-shaped material flaws (rough unhoned

points) on individual cylinder liners

Up to production 08/2000.
1

Check cylinder liners with piston at

bottom dead center.

#

Inspect cylinders with light probe

AR01.00-P-0200AU


*WH58.30-Z-1009-05A


*WH58.30-Z-1010-05A


*WH58.30-Z-1027-05A

Cylinder barrels not okay:
#
2
Remove/install/replace engine or

shortblock.

Cause 3:
Remedy 3:

00 001 70
Single oil scraper rings with ring tension at

lower tolerance limit.

Up to production 06/1999.
1

Perform oil consumption test drive over

approx. 500 km.

AR18.00-P-0025AV
Exclude all other types of faults.

2
Remove/install/replace piston rings.

Install cleaned pistons with new piston

rings in the same cylinder.

Install piston rings with optimized ring

tension.

These piston rings are available as

replacement parts under the normal

replacement part number.

Cause 4:
Remedy 4:

00 001 70
Individual (right) cylinder heads with inner

porous points to air injection duct.
1
Check left/right cylinder bank.

If a cylinder bank is oily:
#
2
Remove/install/replace only this cylinder

head.

ENGINE
112 in MODEL 220, 210, 208, 202,

129

ENGINE
113 in MODEL 220, 210, 208, 202,

129
AR01.30-P-5800B

ENGINE

112.942 in MODEL 163.154

ENGINE
113.942 in MODEL 163.172

ENGINE
113.981 in MODEL 163.174 AR01.30-P-5800MV

ENGINE

112.945, 113.962 in MODEL 463

AR01.30-P-5800GV

Cause 5:
Remedy 5:

00 001 70
Individual engines with missing valve seals on

individual cylinders
1
Remove valve springs on affected

cylinder.

AR05.30-P-3500B

In this case, usually one cylinder is oily, oil

runs through valve cone into cylinder when

valve is open.

2
Check valve seal.

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d by Modification services.
Page 1

Valve seal not okay :
#
3
Remove/install/replace valve seal.

AR05.30-P-3500B

Cause 6:
Remedy 6:

00 001 70
1.5 mm hole missing on individual right

cylinder head covers at connection to

crankcase ventilation.
1
Check cylinder head cover

Up to production 06/1999.

Crankcase ventilation out of order, engine can

sludge up and consume oil as a result

Cylinder head cover not okay:
#
2
Remove/install/replace cylinder head

cover.

ENGINE
112

Air cleaner positioned on engine

side.

ENGINE
113

Air cleaner positioned on engine

side.
AR01.20-P-5014BV

ENGINE

112

Air cleaner positioned on engine side

ENGINE
113

Air cleaner positioned on engine side

AR01.20-P-5014B

Cause 7:
Remedy 7:

00 001 70
Engine oil sludging due to excessively long

engine oil change intervals
Service information: Oil sludge

SI18.00-P-0010A

If the service interval according to

ASSYST is exceeded, the engine oil sludges

up sooner or later depending on the oil

quality, type of operation and operating time.

Engine consumes oil.

See Service Information.

1
Print out ASSYST printout.

2
Check oil change intervals

3
Inform vehicle owner.

4
Remove/install/replace piston rings.

AR03.10-P-7311BV

Disassemble and clean sludged engines

completely because dirty oil usually gets into

clean-oil side due to clogged oil filter.

Cause 8:
Remedy 8:

00 001 70
Piston rings sticky or have coke deposits from

engine oils (e.g. API-S in USA) in connection

with regionally poor fuel quality.

Always use engine oils according to

Specifications for Operating Fluids 229.3, do

not add special additives to engine oil and fuel

BB00.40-P-0229-03A

1
Remove/install/replace piston rings.

AR03.10-P-7311BV

Cause 9:
Remedy 9:

00 001 70
Piston ring wear due to excessive

contamination/dust (model 163) through air

intake system.
1
Remove/install/replace gaskets on air

intake line and distribution element of

partial load ventilation.

e.g. due to incorrect assembly after

workshop visit or embrittlement of gaskets
The distribution element with optimized

material will be available as of 11/ 2000 as a

standard feature.

2
Remove/install/replace intake module.

Exterior oil loss, e.g. due to cast iron

porosity on left side of crankcase in area of

engine support is not considered to be oil

consumption

In the event of a customer complaint

regarding the engine oil consumption, always

determine the oil consumption definitely

because the oil indicator lamp can come on

due to other causes (e.g. defective oil sensor).

Commercially available tools
(see Workshop Equipment Manual)

Number

Designation
Make (e. g.)
Order number

WH58.30-Z-1009-05A
Flexible inspection light
Scope of supply 1 (complete unit):

-glass fiber optical fiber

-light projector

-230 V, storage case

-operating instructions

-graphics protocol
Richard Wolf GmbH

Pforzheimerstr. 32

D-75438 Knittlingen

Karl Storz GmbH

Mittelstr. 8

D-78532 Tuttlingen
1.00565.00

80902

WH58.30-Z-1010-05A
Flexible inspection light

Scope of delivery 2 (for workshops which already have an approved

Wolf or Storz inspection light):

-storage case

-operating instructions

-pictures protocol
Richard Wolf GmbH

Pforzheimerstr. 32

D-75438 Knittlingen

Karl Storz GmbH

Mittelstr. 8

D-78532 Tuttlingen
7.05065.00

K03506AJ

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Page 2

AR88.40-P-4050R
Remove/install Mercedes star
30.3.01

MODEL
163, 203.7, 215, 230.467 /474 /475 /476 /479

P88.40-2291-11

Shown on model 230

1
Mercedes star

2
Grommets


Remove/Install

1
Remove Mercedes star (1) from engine hood

upward with long wedge (1)

Protect engine hood around Mercedes

star (1) with adhesive tape to avoid damaging

paint.


Long wedge

*115589035900

2
Remove grommets (2)

Check grommets (2) and replace if

required.

3
Install in the reverse order

Long wedge

115 589 03 59 00

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d by Modification services.
Page 1