1997 MERCEDES-BENZ ML350 light

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.

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2

WH58.30-Z-1027-05A
Cylinder inspection light

Motoskop MB (cold light) with 560 mm and 200 mm lens probes

Karl Storz GmbH

D-78512 Tuttlingen

80 900

Parts ordering notes
Part no.

Designation
Quantity

112 141 01 80
Gaskets
As required

112 141 02 80
Gaskets
As required

112 018 02 09
Distributor fitting
As required

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 3

AR88.40-P-3020GH
Adjust engine hood
8.4.99

MODEL
163.113 /128 /136 /154 /157 /172 /174 /175

P88.40-2067-09

1
Bolts

2
Engine hood

3
Engine hood hinge
7

Locknut

8
Nuts

4

Bolts

5
Engine hood catch upper section

6
Stop buffer

Longitudinal, height and transverse

adjustment


Danger!

Risk of injury
to
fingers being jammed or

pinched
when Remove/install or aligning

hoods, doors, trunk lid/tailgate or sliding roof.
When moving components, ensure that no

body parts or limbs are within the operating

range of moving parts.

AS00.00-Z-0011-01A

1
Open engine hood (2)

For slight range of adjustments for

longitudinal and height adjustment

2
Loosen bolts (1) on engine hood hinge (3)

and adjust engine hood (2)

3
Tighten bolts (1)


*BA88.40-P-1001-01C

For larger range of adjustments for

longitudinal and height adjustment

4.1
Remove gas-operated strut from engine hood

(2) and put down in engine compartment

Risk of breakage. Do not remove the

retainer otherwise the preload will be lost.

AR88.40-P-3010GH

As of VIN A145273, X708319.

5
Remove cover on air intake

AR83.25-P-1405GH

6
Remove rubber cover from engine hood hinge


Installation:
Replace rubber cover.

7
Cut seam sealing along engine hood hinge so

that hinge can be moved


Installation:
Replace seam sealing. Paint

sealant after curing.

*BR00.45-Z-1004-01A

8
Loosen nuts (8) on engine hood hinge (3)

9
Adjust engine hood (2) so that front edges of

front fenders are flush with engine hood and

top edges are aligned

For larger range of adjustment in

longitudinal direction loosen engine hood

catch upper section (5) and tighten.


*BA88.40-P-1004-01C

10
Tighten nuts (8) for engine hood hinge (3)


*BA88.40-P-1002-01C

11.1
Install gas-operated strut

As of VIN A145273, X708319.

AR88.40-P-3010GH

12
Adjust stop buffer (6)

Unscrew locknut (7). Adjust height of stop

buffer so that top edges of front fenders and

engine hood are flush If required, place

spacer plates below engine hood catch upper

section.

13
Fasten stop buffer (6)

Tighten locknut (7).

Transverse adjustment

14
Loosen bolts (4) from engine hood catch

upper section (5)

Copyright DaimlerChrysler AG 09.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

AR88.40-P-3020GH
Adjust engine hood
8.4.99

MODEL
163.113 /128 /136 /154 /157 /172 /174 /175

P88.40-2067-09

1
Bolts

2
Engine hood

3
Engine hood hinge
7

Locknut

8
Nuts

4

Bolts

5
Engine hood catch upper section

6
Stop buffer

Longitudinal, height and transverse

adjustment


Danger!

Risk of injury
to
fingers being jammed or

pinched
when Remove/install or aligning

hoods, doors, trunk lid/tailgate or sliding roof.
When moving components, ensure that no

body parts or limbs are within the operating

range of moving parts.

AS00.00-Z-0011-01A

1
Open engine hood (2)

For slight range of adjustments for

longitudinal and height adjustment

2
Loosen bolts (1) on engine hood hinge (3)

and adjust engine hood (2)

3
Tighten bolts (1)


*BA88.40-P-1001-01C

For larger range of adjustments for

longitudinal and height adjustment

4.1
Remove gas-operated strut from engine hood

(2) and put down in engine compartment

Risk of breakage. Do not remove the

retainer otherwise the preload will be lost.

AR88.40-P-3010GH

As of VIN A145273, X708319.

5
Remove cover on air intake

AR83.25-P-1405GH

6
Remove rubber cover from engine hood hinge


Installation:
Replace rubber cover.

7
Cut seam sealing along engine hood hinge so

that hinge can be moved


Installation:
Replace seam sealing. Paint

sealant after curing.

*BR00.45-Z-1004-01A

8
Loosen nuts (8) on engine hood hinge (3)

9
Adjust engine hood (2) so that front edges of

front fenders are flush with engine hood and

top edges are aligned

For larger range of adjustment in

longitudinal direction loosen engine hood

catch upper section (5) and tighten.


*BA88.40-P-1004-01C

10
Tighten nuts (8) for engine hood hinge (3)


*BA88.40-P-1002-01C

11.1
Install gas-operated strut

As of VIN A145273, X708319.

AR88.40-P-3010GH

12
Adjust stop buffer (6)

Unscrew locknut (7). Adjust height of stop

buffer so that top edges of front fenders and

engine hood are flush If required, place

spacer plates below engine hood catch upper

section.

13
Fasten stop buffer (6)

Tighten locknut (7).

Transverse adjustment

14
Loosen bolts (4) from engine hood catch

upper section (5)

Copyright DaimlerChrysler AG 09.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

Danger!

Risk of explosion
from explosive gas.
Risk

of poisoning and caustic burns from

swallowing battery electrolyte.
Risk of injury


through burns to skin and eyes from battery

acid or when handling damaged lead-acid

batteries
No fire, sparks, naked flames or smoking.

Wear protective gloves, acid-resistant

clothing and safety glasses. Pour battery

electrolyte only into suitable and appropriately

marked containers.

AS54.10-Z-0001-01A

4
Remove battery

AR54.10-P-0005GH

5
Press out template (6) and adapt the size to

the correct dimensions (a, b)Determine ACTUAL dimension (a) from the

drawing.

Divide the SPECIFIED dimension (a) by the

determined ACTUAL dimension (a) and copy

the template to the original size with the

corresponding factor.

Check dimensions for both axles.

6
Cut out template

7
Cut out holes (7, 8) for engine hood hinge

studs

8
Position template in the engine hood hinge

support using the stud holes

The template is drawn for the left side.

Turn over to obtain the right side.

9
Center the engine hood hinge support on the

template using the markings (9, 10, 11)

10
Remove template

11
Drill a hole at each center punch mark (3, 4, 5)

Only drill through the 2 upper panels. Do

not drill through the reinforcement panel (3rd

panel).


*201589005100

12
Cover windshield, paint surface and adjacent

components adequately in order to avoid

damage due to welding work

Cover apertures in the body in order to

prevent flying sparks: the foam in the

instrument panel burns easily.

c

General information on repairs to body

AH60.00-N-0001-01A


Danger!

The high voltage used for arc welding

presents a lethal hazard
.
Explosion hazard


when welding in area of materials easily

inflammable.
Injury hazard
from welding

spatter and UV-light while welding.
Risk of

poisoning
when inhaling welding vapors.
Use insulating mats. Wear protective clothing,

safety glasses, and protective mask.

Remove

highly inflammable materials from the danger

zone. Use air extractor.

AS00.00-Z-0007-01A

13
Plug weld each hole

*WE58.40-Z-1005-02A

14
Plug welds should be flat and ground smooth

15
Remove covers and clean the repair area

16
Prime untreated points in the area of the

engine hood hinge support

17
Prime the underside of the reinforcement

panel of the engine hood hinge

Access to underside of engine hood hinge

support through the recess for the wiper motor.

18
Spray the underside of the reinforcement

panel of the engine hood hinge support with

wax preservative

Access to underside of engine hood hinge

support through the recess for the wiper motor.

19
Install in the reverse order

Weld spot miller

201 589 00 51 00

Workshop equipment/MB testers
(see Workshop Equipment Manual)

WE58.40-Z-1005-02A
MIG inert gas welding equipment, aluminum weldable, sold by company Wieländer & Schill

Repair products

Number

Designation
Order number

BR00.45-Z-1004-01A
MB body sealant for sealing seams (suitable for painting)
001 989 63 20

Copyright DaimlerChrysler AG 09.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2

3
Remove engine hood hinge on the front

passenger side

AR88.40-P-3060GH

*BR00.45-Z-1004-01A


Danger!

Risk of explosion
from explosive gas.
Risk

of poisoning and caustic burns from

swallowing battery electrolyte.
Risk of injury


through burns to skin and eyes from battery

acid or when handling damaged lead-acid

batteries
No fire, sparks, naked flames or smoking.

Wear protective gloves, acid-resistant

clothing and safety glasses. Pour battery

electrolyte only into suitable and appropriately

marked containers.

AS54.10-Z-0001-01A

4
Remove battery

AR54.10-P-0005GH

5
Remove air conditioning blower motor

AR83.30-P-5560GH

6
Print out template (6) and adapt the size to

the correct dimensions (a, b)Determine ACTUAL dimension (a) from the

drawing.

Divide the SPECIFIED dimension (a) by the

determined ACTUAL dimension (a) and copy

the template to the original size with the

corresponding factor.

Check dimensions for both axles.

7
Cut out template

8
Cut out holes (7, 8) for engine hood hinge

studs

9
Position template in the engine hood hinge

support using the stud holes

The template is drawn for the left side.

Turn over to obtain the right side.

10
Center the engine hood hinge support on the

template using the markings (9, 10, 11)

11
Remove template

12
Drill a hole at each center punch mark (3, 4, 5)

Only drill through the 2 upper panels. Do

not drill through the reinforcement panel (3rd

panel).


*201589005100

13
Cover windshield, paint surface and adjacent

components adequately in order to avoid

damage due to welding work

Cover apertures in the body in order to

prevent flying sparks: the foam in the

instrument panel burns easily.

c

General information on repairs to body

AH60.00-N-0001-01A


Danger!

The high voltage used for arc welding

presents a lethal hazard
.
Explosion hazard


when welding in area of materials easily

inflammable.
Injury hazard
from welding

spatter and UV-light while welding.
Risk of

poisoning
when inhaling welding vapors.
Use insulating mats. Wear protective clothing,

safety glasses, and protective mask.

Remove

highly inflammable materials from the danger

zone. Use air extractor.

AS00.00-Z-0007-01A

14
Plug weld each hole

*WE58.40-Z-1005-02A

15
Plug welds should be flat and ground smooth

16
Remove covers and clean the repair area

17
Prime untreated points in the area of the

engine hood hinge support

18
Prime the underside of the reinforcement

panel of the engine hood hinge

Access to underside of engine hood hinge

support through the recess for the wiper motor.

19
Spray the underside of the reinforcement

panel of the engine hood hinge support with

wax preservative

Access to underside of engine hood hinge

support through the recess for the wiper motor.

20
Install in the reverse order

Weld spot miller

201 589 00 51 00

Workshop equipment/MB testers
(see Workshop Equipment Manual)

WE58.40-Z-1005-02A
MIG inert gas welding equipment, aluminum weldable, sold by company Wieländer & Schill

Repair products

Copyright DaimlerChrysler AG 09.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2

AR88.40-P-3200GI
Remove/install engine hood lock
9.4.99

MODEL
163.136 /154 /172 #A as of 145273,

163.136 /154 /172 #X as of 708319,

163.113 /128 /157 /174 /175

P88.40-2058-06

1
Screws

2
Engine hood lock bottom section

3
Engine hood control cable

4
Electrical connector

5
Screws

6
Engine hood lock top section


Removing and installing

1
Open engine hood and raise to vertical position

AR88.40-P-1000GI

2
Unscrew screws (1) and remove engine hood

lock bottom section (2) upward


*BA88.40-P-1003-01C

3.1
Disconnect electrical connector (4) from

engine hood lock bottom section (2)

Only when equipped with
ATA
.
4
Unhook engine hood control cable (3) from

engine hood lock bottom section (2)

Pull out engine hood control cable slightly.

5
Remove engine hood lock bottom

section (2)


Installation:
Ensure that engine hood

control cable is routed carefully.

6
Unscrew screws (5) and remove engine hood

lock top section (6)

Mark installation position for engine hood

lock top section on engine hood.


*BA88.40-P-1004-01C

7
Install in the reverse order

8
Check alignment of engine hood

If necessary:
#

Adjust engine hood

AR88.40-P-3020GH

9
Lubricate engine hood lock

e

Lubricate hood lock, safety hook and hinges

AP88.40-P-8821GH

10
Perform function check

11
Check function of safety hook

For this purpose, close engine hood,

unlock and check arrest on radiator cross

member.


Engine hood

Number

Designation
Model 163

BA88.40-P-1003-01C
Screw for engine hood lock on radiator cross

member
Nm
12

BA88.40-P-1004-01C
Screw for engine hood lock top section on engine

hood
Nm
12

Copyright DaimlerChrysler AG 09.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1