300D (124.133) L6-3.0L DSL Turbo (603.960) (1987)
Heater Core: Service and Repair
Automatic Climate Control System Components
REMOVAL:
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Disconnect the heater supply and return hoses.
4. Remove the instrument panel. See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair