1. Introduction
This manual provides comprehensive instructions for the service, overhaul, and repair of Mercedes-Benz E-Class vehicles, specifically the W124 Series (1993-1995) and W210 Series (1995-2000). It focuses on models equipped with the four-cylinder 111 petrol engine and the in-line six-cylinder 104 petrol engine. The content is designed to assist owners with mechanical aptitude in performing various maintenance and repair tasks, offering clear, concise, and detailed technical information supported by diagrams and illustrations.
Figure 1.1: Front cover of the Mercedes-Benz E-Class Petrol Workshop Manual. This image displays the front cover of the workshop manual, featuring the Mercedes-Benz logo, E-Class Petrol Workshop Manual title, and the applicable W124 & W210 Series and years 1993-2000. A line drawing of a Mercedes-Benz E-Class vehicle is prominently featured.
2. Safety Information
Always prioritize safety when performing any maintenance or repair work on your vehicle. Failure to follow proper safety procedures can result in serious injury or damage to the vehicle.
- Ensure the vehicle is on a stable, level surface and properly supported with jack stands before working underneath it.
- Disconnect the battery's negative terminal before working on electrical components to prevent accidental activation or short circuits.
- Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and hearing protection, as required.
- Allow the engine and exhaust system to cool down before working on them to avoid burns.
- Be aware of hazardous fluids such as engine oil, coolant, and brake fluid. Dispose of them responsibly.
- Do not smoke or use open flames near fuel system components.
3. General Vehicle Information
This manual specifically addresses Mercedes-Benz E-Class models produced between 1993 and 2000. The W124 series covers vehicles manufactured from 1993 to 1995, while the W210 series covers models from 1995 to 2000. The primary focus is on vehicles equipped with the following petrol engines:
- Four-cylinder 111 petrol engine: Found in various E-Class models during the specified years.
- In-line six-cylinder 104 petrol engine: Also applicable to E-Class models within the manual's scope.
It is important to verify your vehicle's specific engine code and series to ensure the information in this manual is directly applicable.
4. Service and Maintenance
Regular service and maintenance are crucial for the longevity and optimal performance of your Mercedes-Benz E-Class. This section outlines common procedures.
4.1. Oil and Filter Change
- Warm the engine to operating temperature, then turn it off.
- Place a drain pan under the oil drain plug.
- Remove the drain plug and allow the oil to drain completely.
- Replace the drain plug with a new washer and tighten to specification.
- Remove the old oil filter and install a new one, ensuring the gasket is properly seated.
- Refill the engine with the specified type and quantity of new engine oil.
- Start the engine, check for leaks, and verify the oil level.
4.2. Air Filter Replacement
The air filter should be inspected regularly and replaced as needed to ensure proper engine breathing and fuel efficiency.
- Locate the air filter housing, typically near the engine.
- Unclip or unscrew the housing cover.
- Remove the old air filter element.
- Clean the inside of the air filter housing.
- Install the new air filter, ensuring it fits correctly.
- Secure the housing cover.
5. Engine Overhaul and Repair
This section provides detailed procedures for more complex engine repairs and overhauls. Due to the complexity, it is recommended that only individuals with a reasonable degree of mechanical aptitude attempt these procedures.
5.1. Cylinder Head Removal (Example)
The removal of the cylinder head is a critical procedure often required for gasket replacement or valve train service. Refer to the specific engine diagrams within the manual for bolt patterns and torque specifications.
- Drain the engine coolant and disconnect the battery.
- Remove all components obstructing access to the cylinder head, including intake manifold, exhaust manifold, fuel lines, and electrical connectors.
- Remove the camshafts and valve train components as per the manual's instructions.
- Loosen cylinder head bolts in the specified reverse order to prevent warping.
- Carefully lift the cylinder head from the engine block.
- Clean all mating surfaces thoroughly before reassembly.
6. Troubleshooting Guide
This section provides a general guide to diagnosing common vehicle issues. For detailed diagnostic procedures, refer to the specific chapters within the manual.
| Symptom | Possible Cause | Action |
|---|---|---|
| Engine cranks but won't start | Low fuel, weak battery, faulty spark plugs, fuel pump issue. | Check fuel level, test battery, inspect spark plugs, check fuel pump operation. |
| Engine misfires or runs rough | Fouled spark plugs, faulty ignition coil, clogged fuel injector, vacuum leak. | Inspect/replace spark plugs, test ignition coils, check fuel system, inspect vacuum lines. |
| Overheating engine | Low coolant, faulty thermostat, clogged radiator, failing water pump. | Check coolant level, test thermostat, inspect radiator, check water pump. |
A wiring diagram index is also included in the manual to assist with electrical fault finding.
7. Technical Specifications
This section provides general technical specifications for the Mercedes-Benz E-Class W124 and W210 series covered by this manual. For precise figures and torque values, always refer to the detailed tables within the manual's specific chapters.
- Engine Types: Four-cylinder 111 petrol, In-line six-cylinder 104 petrol.
- Series Covered: W124 (1993-1995), W210 (1995-2000).
- Fuel Type: Petrol.
- Manual Length: 204 pages.
- Publisher: Brooklands Books Ltd.
- Publication Date: August 1, 2008.
- ISBN-10: 1855207680.
- ISBN-13: 978-1855207684.
8. Support and Further Information
For additional support or inquiries regarding this workshop manual, please contact the publisher, Brooklands Books Ltd. It is recommended to consult a certified Mercedes-Benz technician for any repairs beyond your mechanical expertise.
Always refer to the latest service bulletins and technical updates from Mercedes-Benz for the most current information pertaining to your vehicle model.
