THE vacuum pump is spring loaded. If you try to install the pump when the engine is at the wrong place it wont bolt-up. You may have to bump the starter a few times so that the pump will fit flush with-out much pressure, or you could damage the new pump. NO big deal.
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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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