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1999 Mercedes-Benz S420 4.2L Poor Idle Quality
Posted to European Driveability on 8/7/2008 10 Replies

Complaint of "engine is rough at idle". The idle is rough but once you accelerate off idle it's fine. Using DAS I checked for fault codes, none stored. Looked at self adaptation numbers and although I don't have them, they were even bank to bank. Then I looked...

10 Replies Received (View Replies)

  Related Documents & Media  1999 Mercedes-Benz S420

 
Message Closed w/Summary

car Vehicle Data

1999 Mercedes-Benz S420

VIN WDBGA43G1X
Engine4.2 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIdle
Message Closed w/Summary

car Vehicle Data

1999 Mercedes-Benz S420

VIN WDBGA43G1X
Engine4.2 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIdle