1997 MERCEDES-BENZ ML350 check engine

Remove/install

Risk of injury to skin and eyes
suffering scalding from contact with
hot coolant spray. Risk of poisoning
from swallowing coolant.
Do not open cooling system unless coolant
temperature is below 90°C. Open cap slowly
and release the pressure. Do not pour
coolant into beverage bottles.
Wear protective gloves, protective clothing
and eye protection.
AS20.00-Z-
0001-01A

Risk of explosion from welding or
soldering work on closed air
conditioning system. Risk of
poisoning. Inhaling overheated
refrigerant vapors may be toxic. Risk
of injury from skin and eye contact
with liquid refrigerant.Do not carry out any welding work on the
closed air conditioning system or in the
surrounding area. No smoking or open
flames. Wear eye protection and protective
gloves. Work only in well ventilated areas.
Carry out repair work on the air
conditioning system circuit only after the
system has been discharged.
AS83.00-Z-
0001-01A
Procedures if air conditioning system
is damaged or leakingAll models
AH83.30-
N-0004-
01A

Protect air conditioning circuit and
components from moisture when
carrying out repair work
All models fitted with air conditioning
AH83.30-
N-0005-
01A
Notes on handling refrigerant R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1Drain coolant J Engine 112, 113.AR20.00-P-
1142HA
Engine 111.AR20.00-P-
1142HG
Engine 612.963.AR20.00-P-
1142M
2Unscrew coolant compensating
reservoir (1) on firewall Lay compensating reservoir to one side.
3Disconnect coolant delivery/return
hoses for heat exchanger (2) Remove hose clamps from coolant hoses.
4Discharge air conditioning system
Installation: Evacuate air conditioning,
refill and check for proper operation and
leaktightness.AR83.30-P-
1760GH
5Remove cover on expansion valve
(4)
6Remove nut (3) on expansion valve
(4) Replace self-locking nut.
*BA83.30-
P-1003-01B
7Disconnect refrigerant lines from
expansion valve Installation: Install new sealing rings
and moisten with compressor oil.

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:19 PMPage 220 © 2006 Mitchell Repair Information Company, LLC.

GF54.30-P-3003A
Indicator/warning messages triggered via CAN data buses, function
24.10.96

MODEL
129, 140 as of 1.6.96,

163, 168, 170,

202 as of 1.8.96,

208 up to 31.7.99,

210 as of 1.6.96 up to 30.6.99

Indicator and warning displays triggered via CAN

Low brake fluid level/parking brake indicator lamp (A1e7)
The parking brake signal comes from the traction system

control module.

The brake fluid signal comes directly from the switch (S11)

(except model 163).

Brake pad wear indicator lamp (A1e6)

The parking brake signal comes from the traction system

control module (N47)

Low engine oil level indicator lamp (A1e12)

The oil level signal comes from the injection system control

module (N3).

For vehicles with ASSYST, also refer to document: ASSYST

engine oil monitoring.

Preglow indicator lamp (A1e16)

The signal comes directly from the injection system control

module (N3).

Coolant level and temperature warning lamp (A1e11) model 168

only as of 9.99
The coolant temperature signal comes from the injection

system control module (N3)

-----------------------------------------------------------------------------------------
ABS MIL (A1e17)

The parking brake signal comes from the traction system

control module (N47).

"CHECK ENGINE" MIL (A1e26),


I
only

The signal comes from the injection system control module (N3)

ETS (A1e35) or ASR (A1e22) or ESP (A1e42) MIL
Lamp illuminated if there is a fault in the respective system.

The signal comes from the traction system control module

(N47).

ETS (A1e36) or ASR (A1e21) or ESP (A1e41) warning lamp
The lamp indicates that the respective system is active.

The signal comes from the traction system control module

(N47).

-----------------------------------------------------------------------------------------

Severe leak warning (

I
as of 97 only)

The fuel reserve indicator lamp (A1e4) flashes. The signal

comes from the injection system control module (N3).

The warning takes place at the earliest 30 minutes after cold

start with the engine idling and the vehicle stationary.

Also refer to document: Purge system with leak test, function
Fog lamps indicator lamp (A1e57), model 163 only except
I
)

The signal comes from the All-activity module (AAM, N10)

"LOW RANGE" indicator lamp (A1e53), model 163 only
The signal comes from the transfer case control module (N78)

Active service system (ASSYST)
Engines 112, 113, 611 (engines with oil

sensor)

GF00.20-P-2009A

Engine oil monitoring, function
Model 210 as of 01.03.97 with engine M111,

OM602, OM604, OM605 and OM606

As of 06.97 models 129, 140, 170, 202 except

engines 112, 113, 611

(Valid for engines with low oil level switch).
GF00.20-P-2009B

Displaying coolant temperature, function
Model 168 as of 9.99

GF54.30-P-3020GC

Purge system with leak test, function

GF47.30-P-3016L

Bus systems, overall function

GF54.00-P-0004A

Copyright DaimlerChrysler AG 04.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

AR54.30-P-6049GH
Removing and installing bulbs of instrument cluster
21.1.97

MODEL
163

P54.30-0632-06

Instrument cluster

A1e1
Left turn signal indicator lamp

A1e2
Right turn signal indicator lamp

A1e3
High beam indicator lamp

A1e4
Fuel reserve indicator lamp

A1e5
Generator charge indicator lamp

A1e6
Brake pad wear indicator lamp

A1e7
Low brake fluid level/parking brake

indicator lamp

A1e8
Instrument illumination

A1e9
Seat belt reminder lamp

A1e11
Low ECL indicator lamp

A1e12
Low engine oil level indicator lamp

A1e15
SRS MIL

A1e17
ABS MIL

A1e21
ASR warning lamp

A1e26
"CHECK ENGINE" MIL

A1e35
ETS MIL

A1e36
ETS warning lamp

A1e40
Steering lock warning lamp

A1e42
ESP MIL

Removing, installing

1
Disconnect ground cable from battery

To prevent the disconnected ground cable

contacting the ground point W16/4

unintentionally, insulate ground cable terminal.

AR54.10-P-0003A

2
Remove instrument cluster

AR54.30-P-6015GH

3
Remove bulbs


AR54.30-P-6049-01Z


Installation:
Install bulbs
AR54.30-P-6049-02Z

4
Install in opposite order


129 589 00 09 00 129 589 01 09 00

Socket
Socket

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

AF54.30-P-8400A
Instrument cluster indicates: Oil sensor defective, oil level below min. or oil level

above max. with engine running and at operating temperature. No DTC stored.
19.5.98

MODEL
129.0, 163.1, 202.0, 208.3 /4, 210.0 /2 /6, 220.0 /1 with ENGINE 112

MODEL
129.0, 163.1, 202.0, 208.3 /4, 210.0 /2, 220.0 /1 with ENGINE 113

Damage code
Cause
Remedy

54 201 90
Oil low, connector defective or coding error
1
Shut off engine and wait 2 min. (key

position 0)

Instrument cluster indicates oil sensor

defective, oil level below min. or oil level

above max. with engine warm and running.

No DTC stored in DTC memory!

2
Check oil level with oil dipstick

3
Check oil level on instrument cluster:

- Key in steering wheel lock position 2,

engine not running

- Wait until - - - - - - appears on

instrument cluster

- When this is displayed press the reset

button for the tripodometer twice within

1 sec. (display appears only after

expiration of a waiting time (max. 30

min.) depending on engine oil

temperature)

Oil level is at bottom mark on oil dipstick

and instrument cluster indicates:
-1L
, -
1,5L
or -2L
#
4
Add quantity of oil indicated on

instrument cluster display and repeat

test.

Oil level at upper mark on dipstick and

instrument cluster indicates either oil level

okay or -1L
, -
1,5L
, -2L

#
5
Recode instrument cluster

AF54.30-P-8600A

Problem still present
#
6
Check cable to oil sensor, oil sensor
connectors, control module and fuse

box (see wiring diagram) for good contact

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

AR03.10-P-7311-01V
Measure end clearance of piston rings

Modification notes
12.6.02

Value in line 1001 for Engine 113.967 modified from

0.012...0.060 to 0.033...0.07 and from 0010...0.030 to

0.01...0.04
Value in BE03.10-P-1001-05B for Engine

113.967 modified

*BE03.10-P-1001-05B

Test values for piston rings

Number

Designation
Engine 112.910/

911/912
Engine 112.920/

921/922/923/940/
941/942/943/944/
945/946/947/948/

960,

113.940/941/942/

943
Engine 113.944/

980/981/982/984

BE03.10-P-1001-05B
Vertical clearance of

piston ring
Groove 1
mm
0,012...0,0600,012...0,0600,012...0,060

Groove 2
mm
0,010...0,0300,010...0,0300,010...0,030

Test values for piston rings

Number

Designation
Engine 113.960/

961/962/963/965/

968
Engine

113.967

BE03.10-P-1001-05B
Vertical clearance of

piston ring
Groove 1
mm
0,012...0,0600,033...0,070

Groove 2
mm
0,010...0,030
0,01...0,04

Commercially available tools
(see Workshop Equipment Manual)

Number

Designation
Make (e.g.)
Order number

WH58.30-Z-1008-12A
Feeler gage
Stiefelmayer

D-73734 Esslingen
59

P03.10-2034-01

1
Use the
feeler gage to measure end clearance of compression rings between

compression ring and mounting groove in the piston; replace compression rings or piston, if

necessary.

The end clearance of the oil scraper ring cannot be checked because of its three-part

design. If the compression rings are replaced, the oil scraper ring must also be replaced.

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 1

AR03.10-P-7311-02V
Measure gap clearance of piston rings

Test values for piston rings
Number

Designation
Engine 112.910/

911/912
Engine 112.920/

921/922/923/940/
941/942/943/944/
945/946/947/948/

960,

113.940/941/942/

943
Engine 113.944/

980/981/982/984

BE03.10-P-1002-05B
Piston ring gap clearance
Groove 1
mm
0,200...0,3500,200...0,3500,200...0,350

Groove 2
mm
0,200...0,4000,200...0,4000,200...0,400

Test values for piston rings

Number

Designation
Engine 113.960/

961/ 962/ 963/

965/ 968/
Engine

113.967

BE03.10-P-1002-05B
Piston ring gap clearance
Groove 1
mm
0,200...0,3500,200...0,350

groove 2
mm
0,200...0,4000,200...0,400

Commercially available tools
(see Workshop Equipment Manual)

Number

Designation
Make (e.g.)
Order number

WH58.30-Z-1008-12A
Feeler gage
Stiefelmayer

D-73734 Esslingen
59

P03.10-2035-01

1
Clean cylinder contact surface.

2
Insert the two compression rings one after the other into the unworn area of the cylinder

wall and measure end clearance with

feeler gauge; replace piston rings, if necessary.

The gap clearance of the oil scraper ring cannot be checked because of its three-part

design. If the compression rings are replaced, the oil scraper ring must also be replaced.

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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11
Oil piston pin (2) and conrod bush

12
Assemble piston (3) and conrod (4)

Install piston (3) with arrow in direction of

travel.

13
Push in piston pin (2) by hand

14
Insert circlip (1) of piston pin (2) in the groove

on piston (3)

Do not damage piston (3). Place a clean

cloth underneath.

15
Oil cleaned parts (cylinder bore, conrod

bearing journal, conrod bearing shells and

pistons)

16
Fit on tensioning strap (10) and tension

Piston ring gaps must be offset 120°.

Tensioning strap

*000589041400

17
Install piston (3) with arrow pointing in

direction of travel

Rotate crankshaft far enough so that the

connecting rod when inserting piston into

cylinder bore does not line up at the

connecting rod journal!

18
Inspect conrod bolts (6)

AR03.10-P-6111-01BV

Thread and shank length

*BE03.10-P-1001-03A

19
Install conrod bearings and fit on conrod

bearing cap (5)


The connecting rod bearing shell (7) with

oil drilling (arrow) must be mounted in the

connecting rod, otherwise the piston pin (2) is

not lubricated.

The anti-twist locks (8) of the connecting rod

bearing shells (7) must be seated in the

grooves (9) in the conrods (4) and connecting

rod bearing caps (5).
AR03.10-P-6111-06AV

The connecting rod and connecting rod

bearing cap are cracked (broken) (arrow).

They must not be installed the wrong side

round!

20
Tighten conrod bolts (6)

AR03.10-P-6111-02BV


*BA03.10-P-1001-01E

21
Rotate crankshaft

To inspect ease of operation.

22
Install oil pump
-
Ensure oil return flow check valve is

correctly located.

-
Clean strainer of oil pump.

-
Fill oil pump with engine oil before

installing so that it pumps oil when first

started.

All except models 203, 209, 211.061/065/070,

220 without 4MATIC, 230.474 /475

AR18.10-P-6020B

Model 203 without 4MATIC, 209,

211.061/065/070

AR18.10-P-6020PV

Model 203 with 4MATIC, model 220 with

4MATIC

AR18.10-P-6020PW

Model 230.474/475

AR18.10-P-6020R

23
Fit on cylinder head
Models 463.206/ 209/ 232/ 233/ 240/ 241/

243/ 244/ 245/ 246/ 247/ 248/ 249/ 250/ 254

AR01.30-P-5800GV

Engine 112 in model 129 and engine 113 in

models 129, 202, 208, 210

AR01.30-P-5800B

Engine 112 in models 170, 202, 208, 210,

220 and engine 113 in models 220,

230.474 /475

AR01.30-P-5800BA

Model 163

AR01.30-P-5800MV

Models 203, 209 with engines 112, 113

Models 211.061/065/070

AR01.30-P-5800PV

24
Fit on top part of oil pan
Model 463

AR01.45-P-7500FG

Model 230.474/475

AR01.45-P-7500R

Model 220 without 4MATIC

AR01.45-P-7500I

Model 220 with 4MATIC

AR01.45-P-7500IW

Model 210 with 4MATIC

AR01.45-P-7500FA

Model 210 without 4MATIC

AR01.45-P-7500F

Models 202, 208

AR01.45-P-7500FC

Model 203 without 4MATIC, 209 with engines

112,113

AR01.45-P-7500PV

Model 203 with 4MATIC

AR01.45-P-7500PW

Model 211.061/065/070

AR01.45-P-7500TV

Model 170

AR01.45-P-7500SV

Model 163

AR01.45-P-7500FB

Model 129

AR01.45-P-7500FD

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

AR46.20-P-0600GH
Removing and installing rack-and-pinion steering
1.3.97

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

P46.20-2126-09

Shown on model 163.154 (vehicles

without speed-sensitive power steering)

1
Front axle carrier

10a
Tie rod joint

21
Rubber mount
25d

Nut

25f
Steering coupling shield

30f
Return line

30i
High-pressure expansion hose

80a
Lower steering shaft

23

Rack-and-pinion steering

23a
Bolts

23h
Shim

23i
Shim

25
Steering coupling

Modification notes
10.9.03

Reference to adjusting toe on front axle replaced by

reference to chassis alignment check
Step 16.1

Removing, installing

Danger!

Risk of fatal injury
if the vehicle slips or

topples off the lifting platform
Align vehicle between the columns of the

lifting platform and position the four support

plates
at the lifting platform support points

specified by the vehicle manufacturer.

AS00.00-Z-0010-01A


Danger!

Risk of injury
with
trapped or crushed

fingers when removing and installing or

aligning hoods, doors, trunk lid/tailgate and

sliding roof.
When moving components ensure that no

body parts or limbs are in the area of

movement.

AS00.00-Z-0011-01A

1
Open engine hood

AR88.40-P-1000GI

2
Extract oil from power steering pump supply

reservoir

Hand pump

*210589007100

3
Raise vehicle

4
Remove front axle gear

AR33.30-P-0525GH

5
Press tie rod joints (10a) off steering knuckles


Installation:
Replace self-locking nuts.

AR46.40-P-0200-02C


*BA46.40-P-1001-01C

Thrust piece

*140589006300

Puller

*202589023300

6
Turn steering wheel to horizontal position

(front wheels in straight-ahead position)

7
Remove key and engage steering lock

8.1
Unplug speed-sensitive power steering

connector from timing case
On vehicles with speed-sensitive power

steering code 213a

Copyright DaimlerChrysler AG 06.07.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 1