I bought an 85 300SD and have been going all over the little problems. Now I have a new one please help. When I bought it the car would not go over 50mph. So I adjusted valves(don't know how it ran),Changed Fuel filters, adjusted alda, and adjusted all of the linkage it would not move to full throttle. I also cleaned the banjo fitting for the boost control. But now with regular acelaration it seems to slip into 3rd gear. Floor it and it shifts right. Help. Also I still have vacum problems with door locks. One does not lock and one locks when unlocked or locks when unlocked. Help!! Have other problems for latter. Got 26MPG my first tank of fuel.

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I like to Drive
77 Celica GT 295000 sold
80 Volvo DL 168000 sold
84 Volvo GLT 342000 Real fast sold
86 Crown Vic. 258000 cheap to keep
84 Ford Van 6.9 360000 sold Great
88 Ford Dulley 7.3 311000 still have
90 Ford Van 7.3 235000 sold great
92 Ford Van 7.3 223000 Excellent still have
82 300TD 1st Benz Great Car 205000Sold
85 300SD 245000 What a ride
84 300SD project car with son, Rod knock
85380SE What a RIDE
90 420SEL Nice Ebay Addition Great buy

It sounds like the doorlock in question has reversed vacuum hoses. Easy enough to remedy. Door panels come off relatively easy. Do searches on various related topics and you shall find. These have all been discussed at great length in this forum. Good luck.

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1982 300D Turbo "Helga"
380,000 miles