Problems · by component

1998 Mercury Mystique electrical system problems

30 owner complaints to NHTSA about the 1998 Mercury Mystique cite electrical system, 13% of all 236 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
30
13% of all complaints
Crashes
0
Reported by owners
Fires
6
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“1998 MERCURY MYSTIQUE. ELECTRICAL SUB-HARNESS CONNECTOR PROBLEMS. *SMD THE CONSUMER STATED HE TOOK THE VEHICLE TO HIS MECHANIC, BECAUSE THE AC WASN'T COOLING PROPERLY AND THE VEHICLE WOULD OVER HEAT, WHILE IT WAS ON. THE VEHICLE HAS TWO FANS IN THE FRONT AND THEY FOUND THE COOLING FAN MELTED AND THE SUB-HARNESS CONNECTOR BURNED UP. IN ADDITION, THEY SHOWED THE CONSUMER THE PART OF THE SUB-HARNESS WITH THE INSULATION JUST FALLING OFF THE WIRE. THEY HAD TO REPLACED THE FAN MOTOR UNIT AND HAD TO SPLICE IN A FAN CONNECTOR AND WIRE INTO THE REST OF THE SUB-HARNESS, BECAUSE FOR SAID THE SUB-HARNESS WAS OBSOLETE AND NOT AVAILABLE. WHILE IT FUNCTIONS, THE CHECK ENGINE LIGHT HAS SINCE ILLUMINATED FOR A CAM SHAFT POSITION SENSOR, WHICH THE CONSUMER WAS INFORMED IT WAS RELATED TO THE SUB-HARNESS. ALSO, THE LOWER CONTROL ARMS, BALL JOINTS, FRONT STRUTS, REAR STRUTS AND REAR MOUNTS, NUMEROUS O2 SENSORS, RADIO ANTENNA, RACK AND PINION, DRIVERS SIDE POWER WINDOW AND SWITCH CONTROLLER WERE ALL REPLACED. THE ENGINE AND TRANSMISSION MOUNTS ALSO HAD TO BE REPLACED. *JB”
Owner complaint to NHTSAFiled Sep 25, 2014Steering, Suspension, Engine and engine cooling, Power train, Electrical system, Visibility, EquipmentODI 10637913
“I AM THE 2ND OWNER OF MY 1998 MERCURY MYSTIQUE. I PURCHASED THE VEHICLE IN 2004. IT HAS A COMPUTER DEFECT THAT GIVES A FALSE READING FOR THE CHECK ENGINE LIGHT. THIS CAR QUALIFIED FOR THE NJ LEMON LAW BECAUSE OF THIS PROBLEM WITH ITS 1ST OWNER. HOWEVER, THAT OWNER WAS TOO KIND TO DO ANYTHING ABOUT IT. THE PREVIOUS OWNER GAVE ME A FILE FILLED WITH SERVICE INFORMATION FROM THE DATE HE PURCHASED THE VEHICLE, BRAND NEW IN DECEMBER 1997. SHORTLY AFTER HIS PURCHASE HE HAD THE VEHICLE BACK TO THE DEALER FOR THE CHECK ENGINE LIGHT. HE HAD IT BACK A COUPLE MORE TIMES FOR THE SAME THING AND THEY ALWAYS FIXED IT. OBVIOUSLY, THEY PUT A BAND-AID ON A MAJOR DEFECT. I NOTICED THE LIGHT WAS ON WHEN I FIRST PURCHASED THE VEHICLE. THE FORMER OWNER SAID HE HAD IT CHECKED AND WAS TOLD NOT TO PAY ATTENTION TO IT. WELL, SINCE THEN I HAVE BEEN TOLD AT INSPECTION THAT IT HAS TO BE FIXED EVERY TIME. SO IT GOES TO MY MECHANIC WHO WILLS REPAIR/REPLACE THE NECESSARY PARTS PER THAT DAY'S COMPUTER READING. WITHIN A FEW WEEKS (OCCASIONALLY MONTHS) THE LIGHT GOES ON AGAIN. PREVIOUS TO THIS YEARS INSPECTION (DECEMBER 31ST) I HAD MY FRIEND LOOK IT OVER AND HE REPLACED THE VALVE/SENSOR THAT WAS…”
Owner complaint to NHTSAFiled Feb 11, 2009Electrical systemODI 10258386
“TL*THE CONTACT OWNS A 1998 MERCURY MYSTIQUE. THE CONTACT TOOK HER VEHICLE TO A MECHANIC BECAUSE THE BLOWER MOTOR RESISTOR FAILED. THE MECHANIC STATED THAT HER FUSE BOX MELTED, WHICH CAUSED THE BLOWER MOTOR TO FAIL. SHE CALLED THE MANUFACTURER AND A REPRESENTATIVE STATED THAT HER VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER 01V230000 (ELECTRICAL SYSTEM), ALTHOUGH THE FAILURES WERE IDENTICAL. THE CONTACT WOULD BE RESPONSIBLE FOR THE REPAIR COSTS. SHE IS IN THE PROCESS OF HAVING THE VEHICLE REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 114,708.”
Owner complaint to NHTSAFiled Jun 3, 2008Electrical system, VisibilityFire reportedODI 10229723
“TL*THE CONTACT OWNS A 1998 MERCURY MYSTIQUE. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT NOTICED THAT THE FUEL GAUGE AND SPEEDOMETER DISPLAYED INACCURATE READINGS. IN ADDITION, THE WARNING LIGHTS ON THE INSTRUMENT CONTROL PANEL FLICKER ON AND OFF SPORADICALLY. THE CONTACT ALSO STATED THAT HE FELT EXCESSIVE HEAT UNDERNEATH THE INSTRUMENT PANEL. A LOCAL MECHANIC STATED THAT THE ELECTRICAL SYSTEM WAS DEFECTIVE AND THEY ARE CURRENTLY IN THE PROCESS OF REPAIRING THE VEHICLE. THE MANUFACTURER DID NOT PROVIDE ANY ASSISTANCE. THE CONTACT HAS PICTURES OF THE FAILED COMPONENT. THE FAILURE MILEAGE WAS 43,000 AND CURRENT MILEAGE WAS 48,000.”
Owner complaint to NHTSAFiled Feb 19, 2008Electrical systemODI 10218534
“VEHICLE INSTRUMENT PANEL WENT HAY-WIRE, CAR STARTING HESITATING, AND SLAMMING FROM GEAR TO GEAR. TOOK TO A SERVICE CENTER THAT ADVISED ME THAT IT HAD A BAD SENSOR. PAID CLOSE TO $800.00 TO HAVE REPLACED. CAR STARTED WITH MORE ELECTRICAL ISSUES WITHIN THE NEXT COUPLE OF DAYS. (IE: LIGHTS WOULD NOT GO ON, ETC) TOOK BACK TO SERVICE CENTER THAT THEN ADVISED THAT THE WIRING HARNESS ON THE CAR WAS MALFUNCTIONING AND CAUSES THE ELECTRICAL SYSTEM TO SHORT CIRCUIT. THE WIRING HARNESS WOULD HAVE TO BE REPLACED AND WIRING ON CAR WOULD HAVE TO BE REDONE COSTING CLOSE TO $3000.00. THEY ALSO ADVISED THAT THIS CAR IS NOT SAFE TO DRIVE, THAT IT WOULD BE JUST A MATTER OF TIME BEFORE THIS CAR WOULD CATCH FIRE. DID NOT HAVE $$ TO MAKE REPAIR, CONTINUED TO DRIVE CAR HAVING NO OTHER OPTION WITH A BABY, AND YOUNG CHILD THAT NEED TO BE TAKEN TO SCHOOL, ETC. WHILE DRIVING ON THE INTERSTATE DAYS LATER, THE CAR WENT FROM 75 MPH TO 10 MPH LIKE HITTING A WALL. ALMOST GOT REAR-ENDED AND HAD TO EXIT, DRIVING HOME AT 10 MPH THE WHOLE WAY. *JB”
Owner complaint to NHTSAFiled Dec 27, 2005Electrical systemODI 10146141
“DT: THE CONTACT STATES THERE IS A NHTSA RECALL CAMPAIGN #01V230000 CONCERNING THE ELECTRICAL SYSTEM. THIS VEHICLE HAS THE SAME PROBLEMS AS INDICATED IN THE RECALL, BUT IT IS NOT INCLUDED IN THE RECALL DUE TO VIN. THE VEHICLE HAS NOT BEEN REPAIRED BECAUSE IT WAS TOO EXPENSIVE *AK”
Owner complaint to NHTSAFiled Dec 1, 2005Electrical systemODI 10144130

Showing 6 of 30 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 6, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Electrical system

Free remedy

ON CERTAIN MY 1996-1998 PASSENGER VEHICLES BUILT AT THE KANSAS CITY, CUAUTITLAN ASSEMBLY PLANTS OR ON MY 1999 PASSENGER VEHCLES BUILT AT THE AUTOMOTIVE ALLIANCE INTERNATIONAL ASSEMBLY PLANTS, THE ROUGH SURFACE OF THE HEATER BLOWER RESISTOR'S STAINLESS STEEL BLADES CAN DAMAGE THE COPPER SURFACE OF THE WIRING HARNESS CONNECTOR. THE DAMAGE COULD, OVER TIME, CAUSE INCREASED RESISTANCE IN THE CONNECTOR AND, DUE TO SUBSEQUENT TERMINAL RELAXATION, RESULT IN AN OPEN CIRCUIT CONDITION.

Electrical systemReported Jul 9, 2001NHTSA 01V230000
Data from NHTSA Recalls API · synced Nov 6, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.