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W108 4.5 vacuum system question

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Grubeguy

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73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
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Discussion Starter • #1 •
I'm looking to transfer back to CA in a couple months and pick up my car. I know that it has a vacuum leak somewhere. I know the reservoir is in the left front fender, and I know that the door locks are vacuum actuated, and that I need to replace two, maybe three of them.

Can anyone give any advice on how to track down leaks, and where the vacuum is originated? Is there a pump that I can rebuild?

And does anyone know where the vacuum actuator for the gas tank door is located?
 
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