My 83 300D is having occasional complete loss of vacuum. When it goes, I lose everything- brakes, door locks and shut-off. I've measured the vacuum near the pump during these episodes and it's zero, nada, ziltch.

But the next time I start the car it'll be fine for quite some time. Then, like today, it goes again. Only to be good for the drive home.

Anyone else experience a similar situation? I've only had the car 6 years but I don't think the vacuum pump was ever replaced. Should I replace the whole unit? Rebuild kit?

Thanks for any help. I've read all the threads I can on this. I'm not sure how to proceed.

Rich

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Rich

83 300D
98 E320 Wagon