My son has a 1984 300D (123). The power antenna has developed a noise when it hits maximum travel and when it goes completely down. I know this particular antenna uses a timed motor operation rather than limit switches like th antenna on my older 300SDs. The antenna goes up all the way and retracts all the way. While it is travelling, its operation is smooth.

Is this noise I'm hearing simply the limit clutch slipping and it's gotten noisy in its old age? Is it anything to worry about?

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Tom Evans
69 280SE 91K (wish I still had it)
73 220D 98K
78 300D 134K
78 300D 185K
81 300SD 301K (still have)
82 300SD 321K (still have)
84 300D 268K
84 6.2 Diesel GMC Suburban 225K (a whole different story!)