1999 Mercedes Benz 420 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
4 owner complaints analyzed
0 distinct recall campaigns
Not available median reported failure mileage
Scope: 1999 model year. Data snapshot: . 0 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Electrical System:Ignition:Switch is the most frequently named component, appearing in 1 of 4 complaints (25.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 1 | 25.0% |
| Steering behavior | 1 | 25.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System:Ignition:Switch | 1 |
| Electrical System:Wiring:Interior/Under Dash | 1 |
| Fuel System, Gasoline:Fuel Injection System | 1 |
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | 1 |
| Steering: Steering Wheel/Handle Bar | 1 |
| Structure:Frame And Members | 1 |
| Unknown Or Other | 1 |
| Visibility:Rearview Mirrors/Devices:Exterior | 1 |
Electrical System:Ignition:Switch: 1; Electrical System:Wiring:Interior/Under Dash: 1; Fuel System, Gasoline:Fuel Injection System: 1; Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip: 1; Steering: Steering Wheel/Handle Bar: 1; Structure:Frame And Members: 1; Unknown Or Other: 1; Visibility:Rearview Mirrors/Devices:Exterior: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 4 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 1 |
2000: 2; 2001: 1; 2002: 1
Pattern summary
Electrical System:Ignition:Switch leads the component reports. Braking behavior appears in 1 complaint narratives. Steering behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 723734 ยท 2000-06-08 (June 8, 2000)
STRANGE ELECTRONIC WHIRRING SOUND WHEN STARTING VEHICLE ON 6/7. SIDE VIEW MIRRORS SUDDENLY MOVED AND THEN CLOSED HALFWAY. NO RESPONSE FROM INTERIOR CONSOLE CONTROL. STEERING WHEEL ALSO BEGAN TO MOVE UP AND DOWN ON ITS OWN. REAR BRAKES CONTINUED TO SQUEAK AND GRAB. WERE REPLACED UNDER WARRANTY LAST NOVEMBER.
Owner-reported narrative. Look up ODI 723734 at NHTSA โ