Description
Factory Mercedes 300E / 300CE / 300TE / 300D / 300TD Workshop Manual (1985–1996)
This official factory-level service manual covers the complete Mercedes-Benz W124 platform sold in the US market, giving independent shops and enthusiastic owners the same depth of technical information used by authorized dealership technicians.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M103 3.0L inline-six (300E, 300CE, 300TE) |
| Diesel | OM603 3.0L inline-six turbodiesel (300D, 300TD) |
| Transmissions | 4-speed automatic, 5-speed manual |
| Drive | RWD |
| Model Years | 1985–1996 |
| Badge Twins | N/A |
Common 300E / 300D Repairs Covered
| System | Procedures |
|---|---|
| Engine — M103 Oil Leaks | Camshaft cover gasket, front and rear crankshaft seal replacement procedures |
| OM603 Diesel — Head Gasket | Cylinder head removal, torque-to-yield bolt specs, coolant system bleed procedure |
| Suspension — Front Control Arm Bushings | Subframe removal, press-fit bushing replacement, alignment specifications |
| Electrical — ABS Module Faults | ABS wheel speed sensor testing, wiring harness inspection, module diagnostic procedures |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why does the OM603 turbodiesel in the 300D and 300TD have a reputation for head gasket issues?
The OM603 3.0L inline-six diesel is prone to head gasket failure, often linked to overheating caused by failing fuel shut-off solenoids or clogged coolant passages. This manual includes the complete cylinder head removal sequence, new head bolt torque specifications, and cooling system flush procedures to address the root cause alongside the repair.
Does this manual cover all W124 body styles sold in the United States?
Yes. The W124 platform underpins the 300E four-door sedan, 300CE two-door coupe, 300TE five-door wagon, 300D diesel sedan, and 300TD diesel wagon — all of which were officially sold in the US market. Every body style and drivetrain combination within the 1985–1996 production run is documented in this manual.
Are wiring diagrams and ABS electrical schematics included?
Full electrical coverage is provided, including circuit diagrams for the Bosch KE-Jetronic fuel injection system, ABS braking system wiring, climate control, central locking, power windows, and lighting. Wire colors, connector pinouts, and ground locations are identified throughout.
What format is the manual?
This manual is delivered as a PDF file. After purchase you receive an instant download link, and the file remains available for re-download at any time. The PDF is fully searchable and can be viewed on any Windows, Mac, or Linux computer, as well as tablets and smartphones.





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