× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1973 Mercedes-Benz 450SL 4.5L Excessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy
Posted to European Driveability on 2/8/2010 22 Replies

Hello everyone. Hoping to get some help here on this one. This Mercedes will surge at idle on cold start after it sits for quite a while. I have replaced the IAT sensor and coolant temp sensor and tested the MAP and still no results. I de-carbed the engine, sm...

22 Replies Received (View Replies)

  Related Documents & Media  1973 Mercedes-Benz 450SL

 
Message Closed w/FIX

car Vehicle Data

1973 Mercedes-Benz 450SL

VIN 107.044-12
Engine4.5 L / 8 cyl / GAS
DeliveryFI / fuel
Emissionsfederal US
SymptomsExcessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy
OccursCold, Idle, Intermittently
Message Closed w/FIX

car Vehicle Data

1973 Mercedes-Benz 450SL

VIN 107.044-12
Engine4.5 L / 8 cyl / GAS
DeliveryFI / fuel
Emissionsfederal US
SymptomsExcessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy
OccursCold, Idle, Intermittently