MercedesS320 LWB1999Overview/mercedes/s320-lwb/1999/base/

1999 Mercedes S320 LWB

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1999 S320 LWB.

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Lug nut torque110 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 49 · 825 CCA battery. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 49 · 825 CCAOEM · verified

OE service part numbers OEM · verified

Engine air filter0030947204
Fuel filter0024772701
Spark plug0031597603
Thermostat1102000515 alt 015997234864

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length205.1 in
Overall width74.4 in
Overall height58.7 in
Wheelbase123.6 in
Curb weight4497 lb
Track (front / rear)63.4 / 62.2 in
Weight distribution (front / rear)51/49

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine DOT 4 brake fluid. Torque lug nuts to 110 ft-lbs, the oil drain plug to 18.0 ft-lbs. The firing order is 1-5-3-6-2-4. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Brake FluidDOT 4

Engine torques

Engine Oil Pan Drain Plug18.0 ft-lbs

Chassis torques

Lug Nuts110 ft-lbs

Ignition

Cylinder Firing Order1-5-3-6-2-4
Cylinder Firing Order1-5-3-6-2-4
Curb Idle Speed (No Load)725 rpm
Curb Idle Speed Variance (No Load)75 rpm
Spark Plug Gap0.031 in
Ignition Timing6-10 degrees

Battery & A/C

RefrigerantR134a
Refrigerant Capacity2.09-2.31 lbs
Oil TypeMB part number 0019890803 or equivalent
Oil Capacity5.41 oz
Standard BCI Group Number49
Standard BCI Cranking Performance825 cca

Service checks

Pressure Test20 psi
Thermostat Opening Temperature185-192 °F
Regulated Fuel System Pressure (Without Vacuum)54.0-61.0 psi
Regulated Fuel System Pressure (With Vacuum)46.0-52.0 psi
Injector Primary Resistance14-18 ohms
Engine Oil Pressure10 psi @ 700 rpm, 43.5 @ 3000 rpm psi
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Torque to Knuckle85 ft-lbs
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Rotor Runout Limit0.003 in / 0.004 in
Rotor Nominal Thickness From1.181 in / 0.472 in
Rotor Nominal Thickness To1.181 in / 0.472 in
Rotor Minimum Machining1.102 in / 0.413 in
Rotor Discard at or Under1.079 in / 0.386 in

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 3 stages
141 ft. lbs.41 ft. lbs
290 degrees90 degrees
390

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

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VIN
Decode a VIN to confirm the transmission and build data for a specific S320 LWB. OEM
Build data
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Vehicles with shared specs

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Reference guides

Cross-vehicle references for the kinds of data on this page.