There are 1 stored owner reports matching the engine leading-label group for the 2004 Mercedes-Benz S-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)TL* THE CONTACT OWNS A 2004 MERCEDES BENZ S600. THE CONTACT NOTICED SMOKE UNDERNEATH THE HOOD. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THE ACTIVE BODY CONTROL FAILED AND CAUSED THE HYDRAULIC FLUID TO LEAK. THE MANUFACTURER WAS NOTIFIED AND ADVISED THE CONTACT THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER: 07V263000, ENGINE AND ENGINE COOLING. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 72,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.