1999 Monaco Coach DIPLOMAT: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
8 owner complaints analyzed
3 distinct recall campaigns
38,219 mi median reported failure mileage
Scope: 1999 model year. Data snapshot: . 2 complaints include usable failure mileage.
Most common problems
Tires is the most frequently named component, appearing in 2 of 8 complaints (25.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 25.0% |
| Fuel system concerns | 2 | 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 |
|---|---|
| Tires | 2 |
| Equipment:Other:Labels | 1 |
| Fuel System, Diesel:Storage:Tank Assembly | 1 |
| Fuel System, Gasoline:Storage:Tank Assembly | 1 |
| Service Brakes, Air | 1 |
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | 1 |
| Service Brakes, Hydraulic:Foundation Components:Disc | 1 |
| Unknown Or Other | 1 |
Tires: 2; Equipment:Other:Labels: 1; Fuel System, Diesel:Storage:Tank Assembly: 1; Fuel System, Gasoline:Storage:Tank Assembly: 1; Service Brakes, Air: 1; Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip: 1; Service Brakes, Hydraulic:Foundation Components:Disc: 1; Unknown Or Other: 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 | 2 |
| 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: 2; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (2). 6 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 |
| 2001 | 1 |
| 2002 | 2 |
| 2003 | 2 |
| 2004 | 1 |
| 2009 | 1 |
2000: 1; 2001: 1; 2002: 2; 2003: 2; 2004: 1; 2009: 1
Pattern summary
Tires leads the component reports. Braking behavior appears in 2 complaint narratives. Fuel system concerns appears in 2 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 10016258 · 2003-04-21 (April 21, 2003)
FUEL TANK LEAK. *JB
Owner-reported narrative. 36,000 miles reported. Look up ODI 10016258 at NHTSA ↗
Owner report 10033879 · 2003-09-23 (September 23, 2003)
WHILE DRIVING 65 MPH, THE AIR DRYER ON THE AIR BRAKES HAD BLOWN APART WHICH CAUSED THE BRAKES TO LOSE POWER. THE DRIVER WAS ABLE TO AVOID A COLLISION AND THE MOTOR HOME WAS TOWED TO THE RESIDENCE. *AK *SCC *JB
Owner-reported narrative. Look up ODI 10033879 at NHTSA ↗
Owner report 10053543 · 2004-01-05 (January 5, 2004)
RECALL RECEIVED FOR THE WRONG PSI ON THE ORIGINAL TAG FOR TIRE EQUIPMENT/ VEHICLE SUFFERED TIRE BLOWOUT.*MR THE CONSUMER RECEIVED RECALL 03V386000 WHICH INDICATED THAT THE WRONG PSI WAS PUT ON THE ORIGINAL ID TAG. THE CONSUMER CONTACTED THE LOCAL DEALER BUT THEY REFUSED TO HANDLE THE RECALL BECAUSE THE VEHICLE WASN'T PURCHASED THERE. AFTER RECEIVING THE RECALL NOTICE THE CONSUMER'S RV HAD A SUDDEN BLOWOUT ON THE RIGHT REAR TIRE. THE MANUFACTURER WAS CONTACTED AND INFORMED THE CONSUMER THAT HAVING THE TIRE PRESSURE AT THE RECOMMENDED PRESSU…
Owner-reported narrative. Look up ODI 10053543 at NHTSA ↗
Owner report 10279879 · 2009-08-10 (August 10, 2009)
TL*THE CONTACT OWNS A 1999 MONACO COACH DIPLOMAT RV. THE CONTACT STATED THAT THE RV HAS A FUNGUS INFECTION NAMED COPRINUS BASIDIOMYCETES MOLD, WHICH IS DETRIMENTAL TO HIS HEALTH. THE MOLD HAS INFECTED THE ENTIRE RV AND HAS CIRCULATED IN THE AIR AND THE CARPET. AN EXPERT INSPECTED THE VEHICLE AND FILED A REPORT. THE CONTACT WAS UNAWARE OF THE MOLD WHEN HE PURCHASED THE VEHICLE. HE WAS IGNORED BY THE DEALER AND THE MANUFACTURER CONCERNING THIS ISSUE. HE WAS ADVISED TO CALL THE EPA AND THE FTC IN REGARDS TO THIS MATTER. THE FAILURE MILEAGE …
Owner-reported narrative. 40,437 miles reported. Look up ODI 10279879 at NHTSA ↗
Owner report 785967 · 2002-04-23 (April 23, 2002)
CONSUMER STATES THAT TIRE IS HAVING BAD RIVETING PROBLEMS, WHILE DRIVING TIRE EXPERIENCED A BLOWOUT, ALMOST CAUSING CONSUMER TO LOSE CONTROL, THE TIRE ALSO BLEWOUT LEFT FRONT AIR BAG AND DAMAGED THE VEHICLE, GOODYEAR G159, 225/70R22.5, DOT MC55. *SLC
Owner-reported narrative. Look up ODI 785967 at NHTSA ↗
Owner report 8002231 · 2002-01-15 (January 15, 2002)
WHILE DRIVING FUEL WAS LEAKING FROM THE VEHICLE, IT WAS LEAKING ONTO ONCOMING TRAFFIC. CONTACTED DEALER ,AND DEALER REPLACED FUEL TANK. FUEL TANK HAS BEEN REPLACED TWICE ALREADY. *AK
Owner-reported narrative. Look up ODI 8002231 at NHTSA ↗
Owner report 859599 · 2000-04-03 (April 3, 2000)
WHILE DRIVING FRONT END SHAKES, PULLS TO RIGHT AND IT IS DIFFICULT TO STOP SAFELY. ALSO, BRAKES MAKE A LOUD KNOCKING NOISE, AND A SEVERE SHAKE. *AK
Owner-reported narrative. Look up ODI 859599 at NHTSA ↗
Owner report 897603 · 2001-10-11 (October 11, 2001)
WINDSHIELD HAS POOR VISIBILTY. DEALER HAS BEEN CONTACTED FOR PROBLEM, AND LABELED IT UNSAFE. PLEASE PROVIDE FURTHER DETAILS.*AK
Owner-reported narrative. Look up ODI 897603 at NHTSA ↗
Recall history
3 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
03V166000 · Equipment:Recreational Vehicle/Trailer
Reported: 2003-05-08 (May 8, 2003)
ON CERTAIN MOTORHOMES, FIFTH WHEELS AND TRAVEL TRAILERS EQUIPPED WITH NORCOLD REFRIGERATOR COOLING UNITS MODEL NUMBERS 1200LR AND 1200RIM, THESE REFRIGERATORS CAN EXPERIENCE LOW CYCLE FATIGUE FAILURE WHICH CAN LEAD TO THE LIQUID SOLUTION SLOWLY LEAKING FROM THE SEALED, PRESSURIZED COOLING UNIT THROUGH A SMALL CRACK.
Consequence: IF A LEAK OCCURS AND THE UNIT IS CONTINUALLY OPERATED, HYDROGEN GAS MAY BE EXPELLED AND CAN BE IGNITED, RESULTING IN A FIRE, POSSIBLY CAUSING SERIOUS INJURY OR DEATH.
Remedy: NORCOLD WILL NOTIFY ITS CUSTOMERS AND PROVIDE A REPLACEMENT COOLING UNIT FREE OF CHARGE. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT NORCOLD SERVICE CENTER AT 1-800-667-3005 OR MONACO AT 574-862-7211.
NHTSA campaign record ↗03V386000 · Equipment:Other:Labels
Reported: 2003-10-10 (October 10, 2003)
ON CERTAIN MOTOR HOMES, THE FEDERAL IDENTIFICATION TAG ON BOTH 36' AND 38' MODELS WAS INCORRECT. THE INITIAL TAG SHOWS THE PSI AS 90 LBS. FRONT AND 100 LBS. REAR. THE CORRECT PSI IS 105 FRONT AND 115 REAR. ALSO, THE FEDERAL IDENTIFICATION TAG ON CERTAIN UNITS INCORRECTLY STATES THAT THE UNIT WAS BUILT WITH A TAG AXLE.
Consequence: DRIVING THE MOTOR HOME WITH UNDER/OVER INFLATED TIRES CAN CAUSE OR CONTRIBUTE TO PREMATURE TIRE FAILURE, POSSIBLY RESULTING IN A SUDDEN BLOWOUT OR OTHER FAILURE THAT COULD RESULT IN THE LOSS OF CONTROL OF THE MOTOR HOME.
Remedy: OWNERS WILL BE PROVIDED WITH A CORRECT FEDERAL IDENTIFICATION TAG AND INSTALLATION INSTRUCTIONS. OWNER NOTIFICATION BEGAN OCTOBER 24, 2003. OWNERS SHOULD CONTACT MONACO AT 1-800-685-6545.
NHTSA campaign record ↗08V257000 · Equipment:Recreational Vehicle/Trailer
Reported: 2008-06-05 (June 5, 2008)
MONACO IS RECALLING CERTAIN MOTOR HOMES EQUIPPED WITH NORCOLD REFRIGERATORS. A FATIGUE FAILURE IN THE SECTION OF THE COOLING UNIT WHICH CONTAINS THE REFRIGERANT COULD ALLOW THE LIQUID SOLUTION TO SLOWLY LEAK.
Consequence: EXTENDED OPERATION OF A LEAKING COOLING UNIT COULD LEAD TO A FIRE FROM GAS WHICH MIGHT ESCAPE.
Remedy: MONACO IS WORKING WITH NORCOLD TO REPAIR THESE REFRIGERATORS. NORCOLD WILL PROVIDE THERMAL SWITCH KITS TO OWNERS ALONG WITH THE NECESSARY FORMS AND INSTRUCTIONS. THE RECALL BEGAN ON AUGUST 29, 2008. OWNERS MAY CONTACT NORCOLD AT 1-800-767-9101 OR MONACO AT 1-800-685-6545.
NHTSA campaign record ↗