Lost the brakes to day, very skarry! No Vacuum for the brakes but the door locks worked for a few cycles. Also the oil pressure was almost at the pin on an idle with a warm engine.
Before you ask. 1984 300D turbo
I there a connection between loss of vacuum and high oil pressure?
Before I start to remove the vacuum pump is there any tests I can do to prove the pump or pump valve.
Any help very much appreciated.

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1984 300SD turbo 126
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