1997 MERCEDES-BENZ ML500 maintenance

Fig. 186: Identifying External Torx Set (001 589 76 09 00)
MAINTENANCE
REPLACE DUST FILTER FOR HEATIN G/AIR CONDITIONING - AP83.00-P-8381GH
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175
Fig. 187: Identifying Dust Filter

BF83.55-P-1008-
01AAdditional oil filling
capacity when
replacing refrigerant
compressorCompressor oilcm3 20
Specifications for
Operating FluidsSheetBB00.40-P-0362-
00A

Remove/install
1Remove cover below instrument
panel (passenger side) Up to 31.08.99AR68.10-P-
1520GH
Remove/install cover below
instrument panel (right) As of 01.09.99AR68.10-P-
1520GI
2First unlatch retaining clamp (3), then
remove cover(2)
3Withdraw dust filter (1) downwards
(arrows) The dust filter must not be
cleaned; it must be replaced.
4Install in the reverse order

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:19 PMPage 230 © 2006 Mitchell Repair Information Company, LLC.

Fig. 75: Identifying Sun Visor Components
MAINTENANCE
CLEAN DOME (PREFABRICATED HEADLINER) FROM TEXTILE MATERIAL, FLOOR COVERINGS, REAR SHELF,
AND OTHER TEXTILES - AP68.00-P-1000-01A
all
Work procedure:
Remove dr
y contamination such as dust, ashes, etc. with dust extractor.* If this is not possible, e.g. deep-seated

Removal, installation
1Remove paneling on A-pillar (5) AR68.30-P-
4050GH
2Remove roof frame grab handles (3)
Open cover for grab handles, press both
clips together and push grab handles upward.
Pull out grab handles.

3Unclip sun visor mount (1) on roof
frame
4Unscrew screws (2) from sun visor
hinge on roof frame
5
Disconnect connector (E14/1x1,
E14/2x1) of sun visor from roof
wiring harness (4) Pull headliner down approx. 10 cm at
corner next to A-pillar.
Do not kink headliner.

6Remove sun visor (E14/1, E14/2)
7Install in opposite order

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:22 PMPage 74 © 2006 Mitchell Repair Information Company, LLC.

SI18.00-P-0010A
Service Information: oil sludge
26.3.01

ENGINE
111 in MODELS 124, 163, 170, 202, 203, 208, 210

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

ENGINE
112, 113 in MODEL 463

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

ENGINE
137 in MODEL 215, 220

ENGINE
166 in MODEL 168

Oil sludging in gasoline engines with ASSYST maintenance

system

Recently we have determined that time and time again oil

sludging occurs in gasoline engines with an ASSYST maintenance

system.

Oil sludging can lead to the following complaints:
D
engine oil consumption

D
engine smoke (white/blue)

D
influencing of oil level indicator

D
clogged oil filter, engine oil thickened like jelly

D
Check engine lamp illuminated

D
oil sludge visible during assembly job, e.g. in oil filter, in cylinder

head covers, condensation sludging
(engine 166) etc.

-----------------------------------------------------------------------------------------
The following list of causes may lead individually or as a combination
to engine oil sludging:

D
Crankcase ventilation inoperable, function orifices, bores,

passages in cylinder head cover, cylinder head, crankcase etc.

are mechanically sealed. A nonfunctioning crankcase

ventilation boosts loads on the engine oil through organic

nitrates. The risk of oil sludging increases.

The mechanical condition of the engine is always to be

checked, i.e. all engine oil drain orifices on the cylinder head

and crankcase and all crankcase ventilation ducts must be free

of obstacles. Crankcase breather lines may not be kinked.
Check the ventilation bores in the cylinder head covers.

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

D
The engine oil used does not comply with the specifications in

Sheet 229.1 or 229.3 of the Specifications for Service Products.

The additive process, e.g. dirt-carrying capability, neutralization

capability and oxidation resistance as well as the quality of the

base stock influence sludging time.

Use of engine oils with best possible resistance to formation of

sludge, i.e. use only tested and approved engine oils (from

Sheet 229.1 or 229.3). The best protection is afforded by the

engine oils on Sheet 229.3, which fulfill more stringent

specifications with regard to preventing sludge and deposits
(see Sheet 221.0, page 11). These oils have a distinctly better

anti-sludge characteristic than other engine oils.

D
Sludging after adding a fuel or engine oil special additive.

Do not use fuel or engine oil special additives. More information

hereto is available on Sheet 219.0 of the Specifications for

Service products. Reference to customer not to use special

additives.

D
Engine oil change not performed according to ASSYST

specifications. At driven distances

exceeding > approx. 3000 km, engine oil sludging may occur.

-----------------------------------------------------------------------------------------
Comply with engine oil and filter change as under ASSYST

specifications. Observe remaining distance.

D
Fuel grade lies outside standard (regionally contingent). If

contaminated, deficient fuel is used, then engine oil sludging

may occur even where approved engine oil is used.

Operation with fuel, e.g. as under DIN EN 228. Clarify refueling

behavior of customer. If engine operation regional, is

temporarily possible with deficient oil only, then the startup

distance has to be individually reduced, i.e. the oil change

temporarily performed at an interval of, e.g. 10,000 km.

D
Radiator antifreeze penetration into engine oil, e.g. through an

internal engine leak (cylinder head gasket, casting porosity).

The engine oil sludges within a short period. The crankcase

ventilation clogs up and stops functioning. Condensation

sludging clogs up the oil separator cells

(engine 166).
Rectify coolant leakage. Clean all sludged engine parts, in

particular the crankcase ventilation parts. If the occurrence

repeats, and casting porosity is suspected, e.g. replace

crankcase.

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

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

Measures for slightly sludged engine:

Oil and filter change. Purge engine, i.e. normal engine operation

in neutral, or while driving, using oil from Sheet 229.3, 228.3, or

228.5. Drain off scavenging oil after purging process (approx. 1

hour). Repeat purging process if necessary. Refill using engine oil

from Sheet 229.3, or 229.1. The first oil change after clearing the

sludge should be performed after approx. 10,000 km or beforehand;

when doing so use engine oil from Sheet 229.3.

Measures for severely sludged engine:

Engines with severe oil sludging and caking onto engine parts

and into bores have to be dismantled and mechanically cleaned.

Tough sludge residue must not enter the clean side of the oil circuit,

as otherwise, e.g. the piston oil spray and the hydraulic

compensation elements may have their functionality impaired. Refill

using engine oil from Sheet 229.3, or 229.1.

The first oil change after sludging should be performed after approx.

10,000 km; when doing so use engine oil from

Sheet 229.3.
Warranty/goodwill regulations

If in combination with engine oil sludging a warranty/goodwill claim is

submitted, then a regular documentation of maintenance must be

presented. The ASSYST printout is to be filed carefully for further

reference.

Oil sludging in combination with an exceeded oil change interval, or

because of special additives in the fuel/engine oil are costs to be

borne by the customer.

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

Fig. 21: Identifying Electronic Accelerator Actuator With Flap Connection
MAINTENANCE
LUBRICATE JOINTS OF ENGINE CONTROL SYSTEM, CHECK JOINTS FOR FREEDOM OF MOVEMENT AND PROPER
SEATING - AP30.10-P-3022GH
ENGINE 112.942 /970, 113.942 /965 /981, 612.963, 628.963 in MODEL 163

Remove/install
1Detach crankcase vent line (1/2) from intake manifold
(19)
2Disconnect electrical connector (arrow) Pull catch backwards.
3Remove bolts (8/1) and throttle valve actuator (M16/6) Installation: Replace O-ring
(8/2).
4Install in the reverse order

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY CAB Throttle Control, Speed Control Systems - 163 Chassis
me
Saturday, October 02, 2010 3:36:28 PMPage 36 © 2006 Mitchell Repair Information Company, LLC.

Rear axle shock absorber
Wheel location
REMOVAL & INSTALLATION
INSTALLING PINCH NUT ON REAR STABILIZER BAR CONNECTING ROD BOLT - SM32.35-P-0001A
MODEL 163.154 #A as of 000001 up to 014254
Vehicles within the Effective Serial Number Range, must have the following work performed during next
scheduled maintenance or service. Install pinch nut to ensure proper tightening torque of rear stabilizer bar
mounting.
Damage code for warranty/goodwill claim: 32 920 07
Fig. 26: Identifying Rear Stabilizer Bar And Pinch Nut

BA32.20-P-1001-04FNut, link rod to torsion
barNm28
NumberDesignationModel Series 163
BA32.25-P-1001-03DSelf-locking nut, shock
absorber to lower
wishboneNM85
BA32.25-P-1002-03DSelf-locking nut, shock
absorber to frame side
memberNM20
NumberDesignationModel Series 163
BA35.20-P-1003-07ASelf-locking nut of lower
wishbone to rear axle
carrierNM135
Installation
1Retorque nut (1) on rear stabilizer bar connecting rod bolt*BA32.20-P-1001-04F

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:36 PMPage 27 © 2006 Mitchell Repair Information Company, LLC.

8
Install spacer ring (2) and screw on union nut

(1) as far as the stop.

Counterhold valve body (3) using

installation tool for tire pressure monitor or pin

4
2 mm (4) in drill hole (arrow).


Installation tool for tire pressure monitor

*WH58.30-Z-1040-06A

9
Tighten union nut (1).

Secure valve body (2) using installation

tool for tire pressure monitor or pin

4
2 mm

(4), to prevent it from turning


After tightening, pull installation tool for

tire pressure monitor or pin

4
2 mm (4) out of

valve body (3). Danger of damage to tire.


Union nut to valve body

*BA40.15-P-1001-01A


Installation tool for tire pressure monitor

*WH58.30-Z-1040-06A

10
Press RPM wheel sensor gently into drop

center of rim and tighten bolt (5).

Internal torx bolt, wheel sensor to valve

body

*BA40.15-P-1002-01A

11
Note ID code (b) of new TPM wheel sensor.

It is advisable to record the code in the

owner's manual or maintenance booklet.

Initialization

12
Teach in new TPM wheel sensor in TPM

control unit using STAR DIAGNOSIS.
Diagnosis system STAR DIAGNOSIS

*WE58.40-Z-1013-06A

13
Activate the tire pressure monitoring system
Model 211

AR54.30-P-1000-02RAT

Model 230

AR54.30-P-1000-02RAR

Model 240

AR54.30-P-1000-02RAH

n

Tire pressure monitor (TPM), activation
Model 210

GF40.15-P-0001-02A

Model 215, 220 up to 30.9.00

GF40.15-P-0001-02B

Model 215, 220 as of 01.10.00 up to 31.05.01

GF40.15-P-0001-02C

Models 215, 220 as of 01.06.01 up to 31.08.02

GF40.15-P-0001-02D

Model 215, 220 as of 01.09.02
GF40.15-P-0001-02E


Tire pressure monitoring

Number

Designation
Model

210, 211,
215, 220,

230, 240

BA40.15-P-1001-01A
Union nut to valve body
Nm
4

BA40.15-P-1002-01A
Bolt, wheel sensor to valve body
Nm
4

Commercially available tools
(see Workshop Equipment Manual)

Number

Designation
Make (e. g.)
Order number

WH58.30-Z-1040-06A
Installation tool for tire pressure control
Alligator Ventilfabrik

GmbH

Postfach 1120

D-89526 Giengen

232540

Workshop equipment/MB testers
(see Workshop Equipment Manual)

WE58.40-Z-1013-06A
STAR DIAGNOSIS Compact diagnosis system for passenger cars, order number 6511 1801 00

Copyright DaimlerChrysler AG 06.07.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2