The FSM is available for free at startekinfo.com under MB Workshop Resources, Service Manual Library.

If your blower is only working with the engine off you might have a faulty ignition switch. Or perhaps faulty cold engine lockout. Just a few ideas.

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1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino

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