1999 Mercedes Benz SL320: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
2 owner complaints analyzed
0 distinct recall campaigns
Not available median reported failure mileage
Scope: 1999 model year. Data updated: . 0 complaints include usable failure mileage. View data status.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm) is the most frequently named component, appearing in 1 of 2 complaints (50.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 1 | 50.0% |
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 |
|---|---|
| Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm) | 1 |
| Structure:Body:Door:Hinge And Attachments | 1 |
| Structure:Body:Roof And Pillars | 1 |
Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm): 1; Structure:Body:Door:Hinge And Attachments: 1; Structure:Body:Roof And Pillars: 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. 2 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 | 1 |
| 2002 | 1 |
2000: 1; 2002: 1
Pattern summary
Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm) leads the component reports. Electrical and battery issues 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.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 724365 · 2000-06-22 (June 22, 2000)
FLETCHER JONES & MERCEDES BENZ MANUFACTURE REP. REFUSED TO REPAIR THE REPEATED NEW CAR PROBLEMS WITH THE CONVERTIBLE ROOF AND DOORS. THEY WERE VERY HOSTILE AND DISCRIMINATORY.*AK
Owner-reported narrative. Look up ODI 724365 at NHTSA ↗
Owner report 8006398 · 2002-03-26 (March 26, 2002)
WHILE DRIVING IN SNOWY WEATHER AND CLIMBING A HILL, THE ELECTRICAL TRACTION CONTROL SYSTEM TOOK OVER AND THE VEHICLE ACCELERATED RESULTING ON LOSS OF CONTROL OF THE VEHICLE AND HITTING A BOULDER OFF THE HIGHWAY. PRIOR TO LOSS OF CONTROL, THE ELECTRONIC TROUBLE CODE LIGHT ILLUMINATED. *JG *NLM
Owner-reported narrative. Look up ODI 8006398 at NHTSA ↗
Recall history
0 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
No recall campaigns are recorded in this snapshot.
Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
2 unique complaints in this selection. Analysis snapshot: 2026-10-01.
Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.
Problems by model year
Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.
| Component | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 |
|---|---|---|---|---|---|---|---|
| Electrical System | 2100.0%ODI 10907513 · 64,000 miMY MB SL320, 1994 ONLY HAS 65,000 MILES AND THE SENSIOR WIRE HARNESS IS ALL FRAILED AND COPPER WIRING EXPOSED DO TO RECYCLED COVERING MB USED WITCH SHOULD OF NEVER BEEN USED AND SHOULD OF BEEN RECALLED FOR REPLACEMENT. READING ON INTERNET THIS IS VERY SERIOUS PROBLEM AND CAUSE INJURY OR DEATH IF SHOULD SHORT OUT HAS THIS ITEM BEEN ON RECALL AND IF NOT WHAT CAN BE DONE TO MAKE MERCEDES RESPONSIBLE? | 1168.8%ODI 10578760 · 150,000 miUPPER ENGINE WIRING HARNESS DETERIORATED SHORTING OUT WIRES CONTROLLING ENGINE. CAUSING INTERMITTENT ENGINE STALLING CAUSING REDUCED AND/OR LOSS OF CONTROL OF VEHICLE. *TR | 250.0%ODI 10412007 · 145,000 miMY CAR APPEARS TO OVER HEAT, BUT IT'S ACTUALLY JUST THE TEMP GAUGE JUMPING AROUND ERRATICALLY. THE MECHANIC SAYS IT'S THE WIRING HARNESS - A KNOWN PROBLEM IN THESE CARS WHICH IS BEING IGNORED BY THE MANUFACTURER. *TT | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Engine | 150.0% | 212.5%ODI 10579461 · 140,000 miENGINE WIRING HARNESS OVERHEATED AND STARTED SMOKING. ENGINE STALLED THIS REDUCED VEHICLE CONTROL. WAS ABLE TO PULL OVER SAFELY. *JS | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Electrical System:Wiring | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 233.3%ODI 10015179BURN SMELL COMING FROM ELECTRICAL HARNESS BOX. MR THE HARNESS BOX WAS LOCATED IN THE TRUNK. THE VEHICLE ALSO HAD AN OIL LEAK. *JB | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Engine And Engine Cooling:Engine | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 233.3%ODI 10015179BURN SMELL COMING FROM ELECTRICAL HARNESS BOX. MR THE HARNESS BOX WAS LOCATED IN THE TRUNK. THE VEHICLE ALSO HAD AN OIL LEAK. *JB | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Equipment:Appliance:Air Conditioner | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 125.0% | 116.7% | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Fuel System, Gasoline | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 250.0%ODI 10495382 · 138,500 miWIRING HARNESS IS DISINTERGRATING. CAR RUNS VERY ROUGH. VISIBLE BARE WIRES. CHECK ENGINE LIGHT COMES ON AND GOES OFF. SMELLS OF BURNING WIRE. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Air Bags | 00.0%No examples available for this selection. | 16.3%ODI 10649751 · 95,000 miTHE SRS WARNING LIGHT CAME ON. A DIAGNOSTIC CODE INDICATED THAT THE AIR BAG CONTROL MODULE (LOCATED IN THE DASH BOARD, BEHIND THE RADIO) WAS NOT WORKING. THIS IS NOT A SERVICEABLE PART. A NEW MODULE IS $1,400, REPEAT, YES, $1,400, NOT INSTALLED. I THINK AIR BAG EQUIPMENT SHOULD HAVE LIFE TIME WARRANTIES AND CERTAINLY SHOULD NOT BE $1,400. THE WOULD APPEAR TO BE PUTTING PROFITS BEFORE SAFETY. I AM A TEACHER, NOT A STOCK BROKER. I BOUGHT THIS CAR THREE YEARS AGO ( THE VEHICLE WAS17 YEARS OLD). IT WAS IN GOOD SHAPE AND WELL MAINTAINED. IF TH… | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Air Bags:Frontal | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 133.3% | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.
Failure mileage by component
Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.
| Component | Mileage range (25th–75th percentile) | Median | Usable records | Examples |
|---|---|---|---|---|
| No usable records for this analysis. | ||||
Complaint and recall timeline
Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.
Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.
Monthly counts, recall campaigns and complaint examples
| Month | Complaints | Campaigns announced | Examples |
|---|---|---|---|
| 2024-11 | 0 | None | No examples available for this selection. |
| 2024-12 | 0 | None | No examples available for this selection. |
| 2025-01 | 0 | None | No examples available for this selection. |
| 2025-02 | 0 | None | No examples available for this selection. |
| 2025-03 | 0 | None | No examples available for this selection. |
| 2025-04 | 0 | None | No examples available for this selection. |
| 2025-05 | 0 | None | No examples available for this selection. |
| 2025-06 | 0 | None | No examples available for this selection. |
| 2025-07 | 0 | None | No examples available for this selection. |
| 2025-08 | 0 | None | No examples available for this selection. |
| 2025-09 | 0 | None | No examples available for this selection. |
| 2025-10 | 0 | None | No examples available for this selection. |
| 2025-11 | 0 | None | No examples available for this selection. |
| 2025-12 | 0 | None | No examples available for this selection. |
| 2026-01 | 0 | None | No examples available for this selection. |
| 2026-02 | 0 | None | No examples available for this selection. |
| 2026-03 | 0 | None | No examples available for this selection. |
| 2026-04 | 0 | None | No examples available for this selection. |
| 2026-05 | 0 | None | No examples available for this selection. |
| 2026-06 | 0 | None | No examples available for this selection. |
| 2026-07 | 0 | None | No examples available for this selection. |
| 2026-08 | 0 | None | No examples available for this selection. |
| 2026-09 | 0 | None | No examples available for this selection. |
| 2026-10 (partial) | 0 | None | No examples available for this selection. |
Emerging complaint spikes
Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.
This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.
No complete months meet the spike thresholds for this selection.
Equal-age model-year comparison
Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.
1999: 1 complaints · 2000: 1 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 1999 | 0 | 1 | 1 |
| 2000 | 1 | 1 | 1 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 1999 | 2 | 0 | 0 |
| 2000 | 1 | 0 | 0 |
Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.
Components reported together
Each cell counts unique complaints naming both components. Open a nonzero cell for examples.
| Component | Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm) | Structure:Body:Door:Hinge And Attachments | Structure:Body:Roof And Pillars |
|---|---|---|---|
| Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm) | — | 0 | 0 |
| Structure:Body:Door:Hinge And Attachments | 0 | — | 1ODI 724365FLETCHER JONES & MERCEDES BENZ MANUFACTURE REP. REFUSED TO REPAIR THE REPEATED NEW CAR PROBLEMS WITH THE CONVERTIBLE ROOF AND DOORS. THEY WERE VERY HOSTILE AND DISCRIMINATORY.*AK |
| Structure:Body:Roof And Pillars | 0 | 1ODI 724365FLETCHER JONES & MERCEDES BENZ MANUFACTURE REP. REFUSED TO REPAIR THE REPEATED NEW CAR PROBLEMS WITH THE CONVERTIBLE ROOF AND DOORS. THEY WERE VERY HOSTILE AND DISCRIMINATORY.*AK | — |
Co-reporting does not establish that one component caused another concern.
Recurring narrative patterns
Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.
0 patterns with matching reports.
No narratives match the published patterns.