1998 Mercedes S420 Service Manual

Comprehensive service manual for the 1998 Mercedes S420. Covers engine, transmission, chassis, and A/C systems. Includes detailed diagrams and procedures. PN 119.981

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Document Details

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Document Number / Seller:
28625 / Amanda Thompson
File Size:
147.32 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Diesel Engine
Last updated / verified
Mar 6, 2025

Models Covered & Key Technical Specifications

1998 Mercedes S420 Service Manual: Mercedes-Benz S420 Service-Dossier

Mercedes S420 Parts Diagrams & Service Data | Engine Comprehensive Factory-Grade Manual download: Mercedes S420 models Service-Dossier.

  • Engine Type: Mercedes-Benz S420
  • Engine Code: 119.981
  • Displacement: 4.2L
  • Horsepower: 275 @ 5700 RPM
  • Torque: 295 ft-lbs @ 3900 RPM
  • Transmission: Automatic

Professional Workshop Service Manual & Technical Specifications

Mercedes S420 Service Manual: Mercedes-Benz S420 Service-Dossier

Diagnostic-Area: Engine // Engine-Type: Mercedes-Benz S420 / 4.2L Logic // Diagnostic-Area: 119.981 Identifier System-Path Framework
Engine Identification Codes Specifications
Adjustments Valve Clearance Procedures
Valve Timing Specifications Measurements
Removal & Installation Engine Components
Torque Specifications Engine Values

Service procedures are grouped by.

Engine Component Procedures

This manual provides detailed procedures for engine component removal and installation. It includes guidance on timing chain procedures, valve adjustments, and engine-specific specifications. Logical operational notes are provided throughout.

Technical Specifications

The manual documents detailed specifications for various engine components, including valve timing measurements, torque values, and critical part dimensions, ensuring proper assembly and function. Logical component specifications are included.

System Overviews

Understand the various engine systems covered, such as ignition timing, fuel delivery, and air intake. The manual details the operation and interrelation of these systems, providing a comprehensive overview. Logical system overviews are provided.

Diagnostic Procedures

Follow systematic diagnostic procedures for identifying and resolving issues. The manual includes troubleshooting guides and fault code interpretations. Logical diagnostic steps are presented.

Component Replacement

Detailed instructions are provided for the removal and installation of key engine components, including cylinder heads, crankshafts, and pistons. Logical replacement sequences are outlined. Consistently requiring proper maintenance, this manual documents torque specifications for critical engine components to ensure proper mating surface contact.

FAQ

What tools are needed for **designated** adjustment procedures? keyboard_arrow_down

Feeler gauges, a wrench (119 589 00 01 00), and camshaft pins (119 589 00 15 00) are specified for camshaft timing adjustments.

Identify the **critical** pressure specifications mentioned. keyboard_arrow_down

While specific pressure values are not explicitly listed in the provided text for general components, it is noted that system operating pressures for the A/C are listed as (3) and information is not available from the manufacturer.

What **required** assembly sequence is detailed for the cylinder head? keyboard_arrow_down

Cylinder head bolts must be tightened in proper sequence, as shown in Fig. 2, ensuring paint marks on the timing chain and camshaft sprockets are aligned.

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Reviews (3)

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I found this service manual to be very detailed. The support team was very helpful when I had questions, responding quickly and professionally.
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This manual has everything I needed to service my S420. The download process was smooth, and I received the link almost instantly!
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Rated 5 out of 5 stars