Buying and Maintaining a Mercedes-Benz W126

Synopsis

The Mercedes 126 S-Class of 1979-91 remains the most successful premium class saloon in the company's history and is considered by many to be one of the best cars in the world. More than quarter of a century after the last one left the factory, close to a quarter of all 126s remain registered throughout the world. This book will enable you to avoid the most common pitfalls and faults that otherwise can ruin the ownership of a 'Sonderklasse'. Packed with the sort of advice only normally obtainable from years of experience, it will act as your own personal marque expert. Specifications and valuations are included along with a detailed guide to buying the best car at the right price, and finally, how to keep your 126 fresh and reliable.

Summary

Chapter 1: Introduction

* Overview of the Mercedes-Benz W126 (1979-1991)
* Distinctive features and reputation for reliability
* Real Example: A 1985 Mercedes-Benz 300D with 350,000 miles

Chapter 2: Buying a W126

* What to look for in a potential purchase
* Different models and their features (e.g., 280E, 300SD, 560SEC)
* Condition and maintenance history

Case Study:

* Inspecting a 1983 Mercedes-Benz 500SEL for rust, electrical issues, and mechanical soundness.

Chapter 3: Maintenance and Repairs

* Regular maintenance schedule (e.g., oil changes, brake inspections)
* Common problems and their solutions
* Importance of using genuine Mercedes-Benz parts

Real Example:

* Replacing the brakes and suspension components on a 1989 Mercedes-Benz 420SEL.

Chapter 4: Ownership Costs

* Estimated expenses for insurance, fuel, repairs, and maintenance
* Factors affecting ownership costs (e.g., mileage, driving habits)
* Budgeting and preparing for potential expenses

Case Study:

* Calculating the monthly ownership costs for a 1986 Mercedes-Benz 300SE, including fuel, insurance, and expected repairs.

Chapter 5: Modifications and Upgrades

* Options for enhancing performance, aesthetics, and comfort
* Aftermarket parts and accessories
* Considerations for preserving the vehicle's original integrity

Real Example:

* Installing a turbocharger and performance intake system on a 1984 Mercedes-Benz 240D.

Chapter 6: Troubleshooting and Diagnostics

* Common warning signs and symptoms
* Using diagnostic tools and codes
* Troubleshooting electrical, mechanical, and suspension issues

Case Study:

* Diagnosing a rough idle and engine vibration on a 1988 Mercedes-Benz 560SL.

Chapter 7: Winterizing and Storage

* Preparing the vehicle for cold weather conditions
* Proper storage techniques to prevent damage
* Maintaining battery and other components

Real Example:

* Winterizing a 1982 Mercedes-Benz 380SEL, including antifreeze, battery maintenance, and tire storage.