1988–1991 Mercedes-Benz 300SEL
Common problems, technical service bulletins, fluid specs and labor times — verified for your car.
Top Problems (5)
Water Pump Failure
high
AI-written
Transmission Problems
high
AI-written
Electrical Issues
medium
AI-written
Power Steering Failure
medium
AI-written
Fuel Injection System Issues
medium
AI-written
Active Service Bulletins
— Cold Start
Engine Performance
— Warm-Up Enrichment
Engine Performance
— Idle Speed Control Unit
Engine Performance
— D: MONOVALVE, Recirculating Pump, Coolant Circuit & Cold Engine Lock
Heating, Ventilation & A/C (HVAC)
— Fuel Distributor Unit (U)
Engine Performance
Key Fluid Specs
| Spec | Value |
|---|---|
| Total Refrigerant Oil Capacity | 120 |
| Total Capacity | 1300 |
| Refrigerant Type | R-12 |
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