Page 258 of 2053

M162 ENGINE CONTROLS 1F1 -- 95
D AEW OO M Y_2000
MAINTENANCE AND REPAIR
KAA1F430
ON VEHICLE SERVICE
DISCHARGING THE PRESSURE IN
FUEL SYSTEM
Removal and Installation Procedure
1. Remove the fuel pressure test connector.
Installation Notice
Tightening Torque
25 NSm (18 lb-ft)
KAA1F440
2. Remove the fuel pressure in fuel system by pressing
the service valve with a clean, pointy tool.
Notice:Place a cloth so that the fuel doesn’t stain
around.
3. Installation should follow the removal procedure in
the reverse order.
YAA1F170
FUEL PUMP
Tools Required
661 589 00 46 00 Fuel Tank Cap Wrench
Removal and Installation Procedure
Caution: The fuel system is under pressure. To
avoid fuel spillage and the risk of personal injury or
fire, it is necessary to relieve the fuel system pres -
sure before disconnecting the fuel lines.
1. Relieve the fuel system pressure. Refer to “Discharg-
ing the Pressure in Fuel System” in this section.
2. Disconnect the negative battery cable.
3. Put aside the floor carpet to remove the fuel pump ac-
cess cover.
4. Remove the fuel pump access cover.
5. Remove the fuel pump wiring connectors.
6. Disconnect the fuel supply and return pipes.
7. Remove the fuel pump locking cap band.
Page 259 of 2053

1F1 -- 96 M162 ENGINE CONTROLS
D AEW OO M Y_2000
YAA1F550
8. Using the fuel tank cap wrench 661 589 00 46 00,
remove the locking cap.
9. Remove the pump from the fuel tank.
Notice:Check the condition of the seal and replace if
necessary. Drain the fuel before removing the pump.
10. Perform an operational check of the fuel pump.
11. Installation should follow the removal procedure in
the reverse order.
YAA1F190
FUEL FILTER
Removal and Installation Procedure
1. Disconnect the negative battery cable.
Caution: The fuel system is under pressure. To
avoid fuel spillage and the risk of personal injury or
fire, it is necessary to relieve the fuel system pres -
sure before disconnecting the fuel lines.
2. Relieve the fuel system pressure. Refer to “Dis-
charging the Pressure in Fuel System” in this sec-
tion.
3. Disconnect the fuel lines from the fuel filter.
Installation Notice
Tightening Torque
28 NSm (21 lb-ft)
4. Remove the fuel filter mounting bracket bolt .
Installation Notice
Tightening Torque
6NSm (53 lb-in)
Notice:Place the fuel pump pad. There may be a corro-
sion due to the contact between the fuel filter and the
bracket.
5. Remove the fuel filter.
6. Install the fuel filter.
7. Perform a leak test of the fuel filter.
8. Installation should follow the removal procedure in
the reverse order.
Page 263 of 2053

1F1 -- 100 M162 ENGINE CONTROLS
D AEW OO M Y_2000
KAA1F090
Notice:Before removal, the fuel rail assembly may be
cleaned with a spray-type cleaner, following package in-
structions. Do not immerse the fuel rails in liquid clean-
ing solvent. Use care in removing the fuel rail assembly
to prevent damage to the electrical connectors and in-
jector spray tips. Prevent dirt and other contaminants
from entering open lines and passages. Fittings should
be capped and holes plugged during service.
Important:If an injector becomes separated from the
rail and remains in the cylinder head, replace the injector
O-ring seals and the retaining clip.
12. Remove the injectors and the fuel rail carefully.
13. Remove the fuel injector retainer clips.
14. Remove the fuel injectors by pulling them down and
out.
15. Discard the fuel injector O-rings.
16. Lubricate the new fuel injector O-rings with engine
oil. Install the new O-rings on the fuel injectors.
17. Perform a leak check of the fuel rail and fuel injec-
tors.
18. Installation should follow the removal procedure in
the reverse order.
YAA1F150
ENGINE COOLANT TEMPERATURE
SENSOR
Removal and Installation Procedure
1. Relieve the coolant system pressure.
2. Disconnect the negative battery cable.
3. Disconnect the engine coolant temperature sensor
connector.
Notice:Take care when handling the engine coolant
temperature sensor. Damage to the sensor will affect
the proper operation of the fuel injection system.
4. Remove the engine coolant temperature sensor
from the pump hosing.
Installation Notice
Tightening Torque
30 NSm (22 Ib-ft)
5. Installation should follow the removal procedure in
the reverse order.
Page 275 of 2053
M162 ENGINE INTAKE & EXHAUST 1G1 -- 7
D AEW OO M Y_2000
INTAKE MANIFOLD
Preceding Work: Removal of fuel rail
Removal of battery
Removal of canister
1 Bolt (M6 X 40, 4 pieces)
9--11 NSm (80-- 97 lb-in) .....................
2 Softcap
3 Resonance Flap
4 Gasket Replace...........................
5 Upper Intake Manifold
6 Bolt (M8 x 50, 9 pieces)
22.5-- 27.5 NSm (16.6-- 20.3 lb-ft) .............
7 Gasket Replace...........................
8Blow--byHose
9Blow--byHose
10 Clamp
11 Blow-- by Nipple
12 Inlet Air Housing13 Bolt (M6 x 40, 4 pieces)
9--11 NSm (80-- 97 lb-in) .....................
14 Throttle Body -- Electric
15 Gasket Replace...........................
16 Lower Intake Manifold
17 Bolt (M8 x 40, 4 pieces)
22.5-- 27.5 NSm (16.6--20.3 lb-ft) .............
18 Nipple Replace............................
19 Seal Ring
20 Connection House
21 Clamp
22 Noise Damper Assembly
23 Tapping Screw
Page 286 of 2053

1A2 -- 2 GENERAL ENGINE INFORMATION
D AEW OO M Y_2000
SPECIFICATIONS
ENGINE SPECIFICATIONS
ApplicationE23 EngineE20 Engine
Engine ModelM161.970M161.940
Displacement (CC)22951998
Cylinder (Bore x Stroke)(mm)90.9 x 88.489.9 x 78.7
Fuel Injection / Ignition SystemMSE 3.53S←
Compression Ratio10.4:19.6:1
Number of Cylinders4←
Camshaft Valve ArrangementDOHC←
Camshaft Drive TypeChain-- Driven←
Max. Output (ps/rpm)149 / 5500135 / 5500
Max. Torque (kgSm/rpm)22.4 / 400019.3 / 4000
Firing Order1--3--4--2←
Ignition TypeDistributorless←
Ignition TimingBTDC 6°±2°←
Va lv e
Tii
IntakeOpen/CloseATDC 19.25°/ ABDC 28.76°ATDC 13.15°/ ABDC 13.57°
Tim in gExhaustOpen/CloseBBDC 20.62°/ BTDC 15.08°BBDC 16.58°/ BTDC 17.05°
Valve Clearance AdjustmentAutomatic Control←
Idle Speed (rpm)750±50←
Fuel Injection Pressure (kg/cm@)3.2 -- 4.2←
Oil Capacity (liter)7.5←
Lubrication TypeForced by Gear Pump←
Oil Filter TypeFull Flow with Paper Filter←
FuelUnleaded Gasoline←
MSE 3.62S/3.53S (Motorsteuer Elektronik : German)
MSE : Engine Control Electronic
3.62S : 6 cylinder version
3.53S : 4 cylinder version
Page 295 of 2053

1B2 -- 2 M161 ENGINE MECHANICAL
D AEW OO M Y_2000
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb-FtLb-In
Fuel Feed and Return Line21 -- 2515 -- 18--
Exhaust Manifold and Pipe3022--
Engine Mounting Nuts7052--
Generator Carrier Bolts2518--
Tensioning Pulley Bolt40.5 -- 49.529.9 -- 36.5--
Steering Pump Bolts22.5 -- 27.516.6 -- 20.3--
A/C Bracket Bolts22.5 -- 27.516.6 -- 20.3--
Intake Air Duct Mounting Nuts9--11--80 -- 97
Spark Plug Cover Bolts9--11--80 -- 97
Cylinder Head Cover Bolts9--11--80 -- 97
Magnetic Assembly Bolt9--11--80 -- 97
Cylinder Head Front Cover BoltsM822.5 -- 27.516.6 -- 20.3--y
M69--11--80 -- 97
Cylinder Head Bolts55
+90°
+90°41
+90°
+90°
--
Timing Gear Case Cover Bolts22.5 -- 27.516.6 -- 20.3--
Crankshaft Sealing Rear Cover Mounting Bolts9--11--80 -- 97
Vibration Damper Center Bolt200 + 20
+90°+10°148 + 15
+90°+10°--
Connecting Rod Bearing Cap Bolts40
+90°30
+90°--
Flywheel Mounting Bolt45 + 5
+90°+10°33 + 3.7
+90°+10°--
Amarture Bolt in Flywheel3526--
Camshaft Adjuster Flange Bolts18 -- 22
60°±5°13 -- 16
60°±5°--
Intake Flange Shaft Bolts18 -- 22
60°±5°13 -- 16
60°±5°--
Exhaust Camshaft Sprocket Bolts18 -- 22
60°±5°13 -- 16
60°±5°--
Camshaft Bearing Cap Bolts22.5 -- 27.516.6 -- 20.3--
Chain Tensioner Screw Plug4030--
Chain Tensioner Assembly72 -- 8853 -- 65--
Oil Pump Sprocket Bolt29 -- 3521 -- 26--
Tensioning Device Bolts26 -- 3219 -- 24--
Water Pump Pulley22.5 -- 27.516.6 -- 20.3--
Upper Intake Manifold Bolt22.5 -- 27.516.6 -- 20.3--
Lower Intake Mainfold Bolt22.5 -- 27.516.6 -- 20.3--
Flange Bolt to Exhaust Mainfold3022--
Page 428 of 2053
1F2 -- 6 M161 ENGINE CONTROLS
D AEW OO M Y_2000
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS TABLE
YAA1F890
661 589 00 46 00
Fuel Tank Cap Wrench
KAA1F490
103 589 00 21 00
Fuel Pressure Gauge
Page 462 of 2053
1F2 -- 44 M161 ENGINE CONTROLS
D AEW OO M Y_2000
Measure the Fuel Delivery from the Fuel Pump
1. Disconnect the return pipe from fuel distributor and insert the appropriate hose into it.
2. Place the hose end into the beaker with the minimum capacity of 1 Liter
3. Turn the ignition switch to “ON” position.
4. Connect the terminal No. 33 and No. 5 of ECM with a service wire.
5. Measure the fuel delivery from the fuel pump
Specified Value
1 Liter/max. 35 sec.
Notice:Check the fuel filter and fuel line when the fuel delivery is not within specified value.
Measure the Current Consumption of Fuel Pump
1. Remove the fuel pump relay from fuse and relay box in trunk, and turn the ignition switch to “ON” position.
2. Using a multimeter, measure the current consumption by connecting the terminal No. 30 and No. 87 of the fuel
pump relay connector.
Specified Value
5~9A
Notice:Replace the fuel pump relay if the measured value is over 9 A.