0B-12 GENERAL INFORMATION
OWNER INSPECTIONS
AND SERVICES
WHILE OPERATING THE VEHICLE
Horn Operation
Blow the horn occasionally to make sure it works. Check
all the button locations.
Brake System Operation
Be alert for abnormal sounds, increased brake pedal
travel or repeated puling to one side when braking. Also,
if the brake warning light goes on, or flashes, something
may be wrong with part of the brake system.
Exhaust System Operation
Be alert to any changes in the sound of the system or
the smell of the fumes. These are signs that the system
may be leaking or overheating. Have the system
inspected and repaired immediately.
Tires, Wheels and Alignment Operation
Be alert to any vibration of the steering wheel or the
seats at normal highway speeds. This may mean a wheel
needs to be balanced. Also, a pull right or left on a
straight, level road may show the need for a tire pressure
adjustment or a wheel alignment.
Steering System Operation
Be alert to changes in the steering action. An inspection
is needed when the steering wheel is hard to turn or
has too much free play, or is unusual sounds are noticed
when turning or parking.
Headlight Aim
Take note of the light pattern occasionally. Adjust the
headlights if the beams seem improperly aimed.
AT EACH FUEL FILL
A fluid loss in any (except windshield washer) system
may indicate a problem. Have the system inspected and
repaired immediately.
Engine Oil Level
Check the oil level and add oil if necessary. The best
time to check the engine oil level is when the oil is warm.
1. After stopping the engine, wait a few minutes for the
oil to drain back to the oil pan.
2. Pull out the oil level indicator (dip stick).
3. Wipe it clean, and push the oil level indicator back
down all the way.
4. Pull out the oil level indicator and look at the oil level
on it.5. Add oil, if needed, to keep the oil level above the
lower mark. Avoid overfilling the engine, since this
may cause engine damage.
6. Push the indicator all the way back down into the
engine after taking the reading.
If you check the oil level when the oil is cold, do not run
the engine first. The cold oil will not drain back to the
pan fast enough to give a true oil level reading.
Engine Coolant Level and Condition
Check the coolant level in the coolant reservoir tank
and add coolant if necessary. Inspect the coolant.
Replace dirty or rusty coolant.
Windshield Washer Fluid Level
Check the washer fluid level in the reservoir. Add fluid if
necessary.
AT LEAST TWICE A MONTH
Tire And Wheel Inspection and Pressure
Check
Check the tire for abnormal wear or damage. Also check
for damaged wheels. Check the tire pressure when the
tires are cold ( check the spare also, unless it is a
stowaway). Maintain the recommended pressures. Refer
to “Tire and Wheel” is in section 0B.
AT LEAST MONTHLY
Light Operation
Check the operation of the license plate light, the
headlights (including the high beams), the parking lights,
the fog lights, the taillight, the brake lights, the turn
signals, the backup lights and the hazard warning flasher.
Fluid Leak Check
Periodically inspect the surface beneath the vehicle for
water, oil, fuel or other fluids, after the vehicle has been
parked for a while. Water dripping from the air
conditioning system after use is normal. If you notice
fuel leaks or fumes, find the cause and correct it at once.
AT LEAST TWICE A YEAR
Power Steering System Reservoir Level
Check the power steering fluid level. Keep the power
steering fluid at the proper level. Refer to
Section 6A,
Power Steering System.
Brake Master Cylinder Reservoir Level
Check the fluid and keep it at the proper level. A low
fluid level can indicate worn disc brake pads which may
need to be serviced. Check the breather hole in the
reservoir cover to be free from dirt and check for an
open passage.
GENERAL INFORMATION 0B-13
Weather-Strip Lubrication
Apply a thin film silicone grease using a clean cloth.
EACH TIME THE OIL IS CHANGED
Brake System Inspection
This inspection should be done when the wheels are
removed for rotation. Inspect the lines and the hoses
for proper hookup, binding, leaks, cracks, chafing, etc.
Inspect the disc brake pads for wear. Inspect the rotors
for surface condition. Inspect other brake parts, the
parking brake, etc., at the same time. Inspect the brakes
more often if habit or conditions result in frequent braking.
Steering, Suspension and Front Drive Axle
Boot And Seal Inspection
Inspect the front and rear suspension and the steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
line and the hoses for proper hookup, binding, leaks,
cracks, chafing, etc. Clean and inspect the drive axle
boot and seals for damage, tears or leakage. Replace
the seals if necessary.
Exhaust System Inspection
Inspect the complete system (including the catalytic
converter if equipped). Inspect the body near the exhaust
system. Look for broken, damaged, missing, or out-of-
position parts as well as open seams, holes, loose
connections, or other conditions which could cause heat
buildup in the floor pan or could let exhaust fumes seep
into the trunk or passenger compartment.
Throttle Linkage Inspection
Inspect the throttle linkage for interference or binding,
damaged, or missing parts. Lubricate all linkage joints
and throttle cable joints, the intermediate throttle shaft
bearing, the return spring at throttle valve assembly, and
the accelerator pedal sliding face with suitable grease.
Check the throttle cable for free movements.
Engine Drive Belts
Inspect all belts for cracks, fraying, wear and proper
tension. Adjust or replace the belts as needed.
Hood Latch Operation
When opening the hood, note the operation of the
secondary latch. It should keep the hood from opening
all the way when the primary latch is released. The hood
must close firmly.
AT LEAST ANNUALLY
Lap and Shoulder Belts Condition and
Operation
Inspect the belt system including: the webbing, the
buckles, the latch plates, the retractor, the guide loops
and the anchors.
Movable Head Restraint Operation
On vehicles with movable head restraints, the restraints
must stay in the desired position.
Spare Tire and Jack Storage
Be alert to rattles in the rear of the vehicle. The spare
tire, all the jacking equipment, and the tools must be
securely stowed at all times. Oil the jack ratchet or the
screw mechanism after each use.
Key Lock Service
Lubricate the key lock cylinder.
Body Lubrication Service
Lubricate all the body door hinges including the hood,
the fuel door, the rear compartment hinges and the
latches, the glove box and the console doors, and any
folding seat hardware.
Underbody Flushing
Flushing the underbody will remove any corrosive
materials used for ice and snow removal and dust control.
At least every spring clean the underbody. First, loosen
the sediment packed in closed areas of the vehicle. Then
flush the underbody with plain water.
Engine Cooling System
Inspect the coolant and freeze protection fluid. If the fluid
is dirty or rusty, drain, flush and refill the engine cooling
system with new coolant. Keep the coolant at the proper
mixture in order to ensure proper freeze protection,
corrosion protection and engine operating temperature.
Inspect the hoses. Replace the cracked, swollen, or
deteriorated hoses. Tighten the clamps. Clean the
outside of the radiator and the air conditioning
condenser. Wash the filler cap and the neck. Pressure
test the cooling system and the cap in order to help
ensure proper operation.
SECTION 1
ENGINE
SECTION 1A1(M162 ENGINE)
GENERAL ENGINE INFORMATION
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1A1-1
Engine Specifications . . . . . . . . . . . . . . . . . . 1A1-1
Component Locator . . . . . . . . . . . . . . . . . . 1A1-3
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . 1A1-3
Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A1-4
Performance Curve . . . . . . . . . . . . . . . . . . 1A1-5
E32 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 1A1-5
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 1A1-6
Special Tools Table . . . . . . . . . . . . . . . . . . . . 1A1-6
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 1A1-7
Oil Leak Diagnosis . . . . . . . . . . . . . . . . . . . . 1A1-7
Engine Cranking at The
Front of Crankshaft . . . . . . . . . . . . . . . . . . 1A1-8
Compression Pressure Test . . . . . . . . . . . . . 1A1-9
Cylinder Pressure Leakage Test . . . . . . . . . 1A1-11
General Information . . . . . . . . . . . . . . . . . 1A1-13
Cleanliness and Care . . . . . . . . . . . . . . . . . 1A1-13
On-Engine Service . . . . . . . . . . . . . . . . . . . 1A1-13
Application
Engine Model
Displacement (CC)
Cylinder (Bore x Stroke) (mm)
Fuel Injection / Ignition System
Compression Ratio
Number of Cylinders
Camshaft Valve Arrangement
Camshaft Drive Type
Max. Output (ps/rpm)
Max. Torque (kg•m/rpm)
Firing Order
Ignition Type
Ignition Timing
Valve Timing Intake Open/Close
ExhaustOpen/Close
Valve Clearance Adjustment
SPECIFICATIONS
ENGINE SPECIFICATIONS
E32 Engine
M162.990
3199
89.9 x 84.0
MSE 3.62S
10 : 1
6
DOHC
Chain-Driven
222 / 5500
31.6 / 3750
1-5-3-6-2-4
Distributorless Double Ignition
BTDC 8° ± 2°
ATDC 11° / ABDC 34°
BBDC 31° / BTDC 14°
Automatic Control
TABLE OF CONTENTS
1A1-2 GENERAL ENGINE INFORMATION
Application
Idle Speed (rpm)
Fuel Injection Pressure (kg/cm²)
Oil Capacity (liter)
Lubrication Type
Oil Filter Type
Fuel
ENGINE SPECIFICATIONS (Cont'd)
E32 Engine
700 ± 50
3 - 4
8.2
Forced by Gear Pump
Full Flow with Paper Filter
Unleaded Gasoline
MSE 3.62S/3.53S (Motorsteuer Elektronik : German)
MSE : Engine Control Electronic
3.62S : 6 Cylinder Version
3.53S : 4 Cylinder Version
GENERAL ENGINE INFORMATION 1A1-9
COMPRESSION PRESSURE TEST
1 Compression Pressure Tester
2 Diagram Sheet3 Adaptor
4 Sealing Cone
Tools Required
001 589 76 21 00 Compression Pressure Tester
119 589 01 09 00 Spark Plug Wrench
Standard Service Data
Compression Ratio
Normal Engine Temperature
Normal Compression Pressure
Permissible Pressure Difference Between Individual
Cylinders10 : 1
80°C
Min. 10 bar, Max. 14 bar
Min. 6 bar, Max. 10 bar
Max. 1.5 bar General
Fuel Optimization
SECTION 1
ENGINE
SECTION 1A2(M161 ENGINE)
GENERAL ENGINE INFORMATION
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1A2-1
Engine Specifications . . . . . . . . . . . . . . . . . . 1A2-1
Component Locator . . . . . . . . . . . . . . . . . . 1A2-3
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . 1A2-3
Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A2-4
Performance Curve . . . . . . . . . . . . . . . . . . 1A2-5
E23 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 1A2-5
E20 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 1A2-6
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 1A2-7
Special Tools Table . . . . . . . . . . . . . . . . . . . . 1A2-7
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . 1A2-8
Oil Leak Diagnosis . . . . . . . . . . . . . . . . . . . . 1A2-8
Engine Cranking At The
Front of Crankshaft . . . . . . . . . . . . . . . . . . 1A2-9
Compression Pressure Test . . . . . . . . . . . . 1A2-10
Cylinder Pressure Leakage Test . . . . . . . . . 1A2-12
General Information . . . . . . . . . . . . . . . . . 1A2-14
Cleanliness and Care . . . . . . . . . . . . . . . . . 1A2-14
On-Engine Service . . . . . . . . . . . . . . . . . . . 1A2-14
E20 Engine
M161.940
1998
89.9 x 78.7
¬
9.6:1
¬
¬
¬
135 / 5500
19.3 / 4000
¬
¬
¬
ATDC 13.15° / ABDC 13.57°
BBDC 16.58° / BTDC 17.05°
¬ Application
Engine Model
Displacement (CC)
Cylinder (Bore x Stroke) (mm)
Fuel Injection / Ignition System
Compression Ratio
Number of Cylinders
Camshaft Valve Arrangement
Camshaft Drive Type
Max. Output (ps/rpm)
Max. Torque (kg•m/rpm)
Firing Order
Ignition Type
Ignition Timing
Valve Timing Intake Open/Close
ExhaustOpen/Close
Valve Clearance Adjustment
SPECIFICATIONS
ENGINE SPECIFICATIONS
E23 Engine
M161.970
2295
90.9 x 88.4
MSE 3.53S
10.4:1
4
DOHC
Chain-Driven
149 / 5500
22.4 / 4000
1-3-4-2
Distributorless
BTDC 6° ± 2°
ATDC 19.25° / ABDC 28.76°
BBDC 20.62° / BTDC 15.08°
Automatic Control
1A2-2 GENERAL ENGINE INFORMATION
E20 Engine
¬
¬
¬
¬
¬
¬ Application
Idle Speed (rpm)
Fuel Injection Pressure (kg/cm²)
Oil Capacity (liter)
Lubrication Type
Oil Filter Type
Fuel
ENGINE SPECIFICATIONS (Cont'd)
E23 Engine
750 ± 50
3.2 - 4.2
7.5
Forced by Gear Pump
Full Flow with Paper Filter
Unleaded Gasoline
MSE 3.62S/3.53S (Motorsteuer Elektronik : German)
MSE : Engine Control Electronic
3.62S : 6 cylinder version
3.53S : 4 cylinder version
Application
Engine Type
Displacement (CC)
Cylinder (Bore x Stroke) (mm)
Fuel Injection / Ignition System
Compression Ratio
Number of Cylinders
Camshaft Valve Arrangement
Camshaft Drive Type
Max. Output (ps/rpm)
Max. Torque (kg•m/rpm)
Firing Order
Injection Timing
Valve Timing Intake Open/Close
(at 2mm lift) ExhaustOpen/Close
Valve Clearance Adjustment
SECTION 1
ENGINE
SECTION 1A3(OM600 ENGINE)
GENERAL ENGINE INFORMATION
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1A3-1
Engine Specifications . . . . . . . . . . . . . . . . . . 1A3-1
Sectional View . . . . . . . . . . . . . . . . . . . . . . 1A3-3
OM662LA Engine . . . . . . . . . . . . . . . . . . . . . 1A3-3
OM661LA Engine . . . . . . . . . . . . . . . . . . . . . 1A3-5
Performance Curve . . . . . . . . . . . . . . . . . . 1A3-7
OM662LA Engine . . . . . . . . . . . . . . . . . . . . . 1A3-7
OM661LA Engine . . . . . . . . . . . . . . . . . . . . . 1A3-8
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 1A3-9
SPECIFICATIONS
ENGINE SPECIFICATIONS
Special Tools Table . . . . . . . . . . . . . . . . . . . . 1A3-9
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 1A3-10
Oil Leak Diagnosis . . . . . . . . . . . . . . . . . . . 1A3-10
Compression Pressure Test . . . . . . . . . . . . 1A3-11
Cylinder Pressure Leakage Test . . . . . . . . . 1A3-13
General Information . . . . . . . . . . . . . . . . . 1A3-15
Cleanliness and Care . . . . . . . . . . . . . . . . . 1A3-15
On-Engine Service . . . . . . . . . . . . . . . . . . . 1A3-15
OM662LA
Four-Stroke Diesel
2874
89 x 92.4
PES 5 M55 C320 RS 168
22:1
5
SOHC
Chain-Drive
120 / 4000
25.5 / 4000
1-2-4-5-3
BTDC 18°± 10°
ATDC 11.33° / ABDC 17°
BBDC 28° / BTDC 15.25°
Automatic ControlOM661LA
Four-Stroke Diesel
2299
89 x 92.4
PES 5 M55 C320 RS 167
22:1
4
SOHC
Chain-Drive
101 / 4000
21.5 / 2400
1-3-4-2
BTDC 18°± 10°
ATDC 11.33° / ABDC 17°
BBDC 28° / BTDC 15.25°
Automatic Control