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1976 MERCEDES BENZ 450SLC
133,000 MILES • V12 • 2WD • MANUAL
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POOBLACK
  • MEMBER
  • 1 POST
my 76 benz blows cold air when the heat is on
Jan 22, 2011 at 3:37 PM
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BILLYMAC
  • CAR REPAIR CONTRIBUTOR
  • 2,204 POSTS
check the heater hoses under the hood where they go inside the car ..are both hot? if yes get under dash open blend door on heater box if you got heat you have to find out why this door is not working or just block it to where you have plenty of heat
Feb 5, 2011 at 1:57 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.