MERCURY TOPAZ (1984–1994)
TroubleAtlas Score
MERCURY TOPAZ (1984–1994): Technical Data, DTC & Service Schedule
Built 1984–1994 · all production years covered on this single page
2.3L I4 • Gasoline
1994
🚗 Mercury TOPAZ 1994
TroubleAtlas Score
An independent value score for the Mercury Topaz (1984–1994) — reliability, safety, cost, parts, upkeep and documentation. Owing nothing to the manufacturer.
Scorecard · each voice 0–10
Reliabilityn/a
Safety & recallsn/a
Repair costn/a
Parts & repairability7.3
Maintenance & durabilityn/a
Documentation & supportn/a
Independent · Verified · Never for sale
Every figure on this Mercury Topaz (1984–1994) page is aggregated and cross-checked against more than 6.6 million real workshop operations, NHTSA records and OEM technical sources — and updated continuously. No invented estimates.
The Mercury Topaz (1984–1994) is powered by a 2.3L I4 engine. Use the sections below for verified fluids, battery, OEM tyres, the maintenance schedule, recommended parts and the most commonly reported OBD2 fault codes for this vehicle.
Common problems
Common repairs
Fluids & lubricants
Battery
Fault codes (OBD2)
Dashboard lights
Parts comparator
Accessories & tools
Tyres
Recalls & TSB
Complaints
Workshops nearby
COMMON PROBLEMS
Transmission fault signal (TCM)MODERATE
The transmission module detected a fault — check separate transmission codes.
Related codes: P0700
Misfire / Loss of cylinderMODERATE
Rough running, idle vibration, power loss.
Related codes: P0300
Thermostat: coolant temperature lowLOW
Thermostat stuck open — engine does not reach operating temperature.
Related codes: P0128
Battery/system voltage lowLOW
System voltage below 10V — check alternator, battery or wiring.
Related codes: P0562
P0011LOW
Check with an OBD2 scanner.
Related codes: P0011
AVERAGE INDICATIVE COSTS
Prices may vary by area and workshop.
Full service
€ 120 – € 200
Full brake service
€ 180 – € 300
Spark plug replacement
€ 80 – € 140
Electronic diagnosis
€ 40 – € 70
WORKSHOP LABOUR RATES BY COUNTRY
Average independent-workshop hourly labour rates, to estimate repair costs in your country.
🇩🇪Germany€95/h
🇪🇸Spain€55/h
🇫🇷France€75/h
🇮🇹Italy€45/h
🇬🇧UK£80/h
🇺🇸USA$120/h
Reference rate
€45/h
Source: Eurostat 2024
💧 FLUIDS & LUBRICANTS
📋 RECALLS & TSB (23)
NHTSA 90E043001
Air Bags › Frontal
Date: 30/10/1990
THREADED INFLATOR COMPONENTS MAY HAVE BEEN DAMAGED DURING ASSEMBLY WHICH MAY ALLOW COMPONENTS TO SEPARATE WHEN INFLATOR RECEIVES A SIGNAL TO DEPLOY THE AIR BAG.
NHTSA 07E064000
Fuel System, Gasoline › Delivery › Fuel Pump
Date: 27/08/2007
CERTAIN FEDERAL-MOGUL AFTERMARKET FUEL PUMPS SOLD UNDER THE BRAND NAMES OF CARTER, ACCUFLOW, NAPA, TRUFLOW, PARTS DEPO, AND PARTS MASTER, SHIPPED BETWEEN AUGUST 2006 AND JULY 2007 FOR USE ON THE VEHICLES LISTED ABOVE. THE FUEL PUMP DIAPHRAGM IN CERTAIN PRODUCTION RUNS MAY HAVE B…
NHTSA 07E064000
Fuel System, Gasoline › Delivery › Fuel Pump
Date: 27/08/2007
CERTAIN FEDERAL-MOGUL AFTERMARKET FUEL PUMPS SOLD UNDER THE BRAND NAMES OF CARTER, ACCUFLOW, NAPA, TRUFLOW, PARTS DEPO, AND PARTS MASTER, SHIPPED BETWEEN AUGUST 2006 AND JULY 2007 FOR USE ON THE VEHICLES LISTED ABOVE. THE FUEL PUMP DIAPHRAGM IN CERTAIN PRODUCTION RUNS MAY HAVE B…
NHTSA 07E064000
Fuel System, Gasoline › Delivery › Fuel Pump
Date: 27/08/2007
CERTAIN FEDERAL-MOGUL AFTERMARKET FUEL PUMPS SOLD UNDER THE BRAND NAMES OF CARTER, ACCUFLOW, NAPA, TRUFLOW, PARTS DEPO, AND PARTS MASTER, SHIPPED BETWEEN AUGUST 2006 AND JULY 2007 FOR USE ON THE VEHICLES LISTED ABOVE. THE FUEL PUMP DIAPHRAGM IN CERTAIN PRODUCTION RUNS MAY HAVE B…
NHTSA 07E064000
Fuel System, Gasoline › Delivery › Fuel Pump
Date: 27/08/2007
CERTAIN FEDERAL-MOGUL AFTERMARKET FUEL PUMPS SOLD UNDER THE BRAND NAMES OF CARTER, ACCUFLOW, NAPA, TRUFLOW, PARTS DEPO, AND PARTS MASTER, SHIPPED BETWEEN AUGUST 2006 AND JULY 2007 FOR USE ON THE VEHICLES LISTED ABOVE. THE FUEL PUMP DIAPHRAGM IN CERTAIN PRODUCTION RUNS MAY HAVE B…
NHTSA 96V071000
Electrical System › Ignition
Date: 25/04/1996
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
NHTSA 96V071000
Electrical System › Ignition
Date: 25/04/1996
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
NHTSA 96V071000
Electrical System › Ignition
Date: 25/04/1996
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
NHTSA 96V071000
Electrical System › Ignition
Date: 25/04/1996
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
NHTSA 96V071000
Electrical System › Ignition
Date: 25/04/1996
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
NHTSA 96V071000
Electrical System › Ignition
Date: 25/04/1996
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
NHTSA 97V019000
Engine And Engine Cooling › Cooling System › Fan
Date: 25/02/1997
THESE VEHICLES ARE ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: ALASKA, IOWA, MINNESOTA, NEBRASKA, NORTH DAKOTA, AND SOUTH DAKOTA. THE VEHICLES INVOLVED ARE 1992-1994 TEMPO/TOPAZ VEHICLES WITH 3.0L ENGINES; 1994 TEMPO/TOPAZ WITH 2.3L ENGINES; 1992-1995 TAURUS…
NHTSA 97V019000
Engine And Engine Cooling › Cooling System › Fan
Date: 25/02/1997
THESE VEHICLES ARE ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: ALASKA, IOWA, MINNESOTA, NEBRASKA, NORTH DAKOTA, AND SOUTH DAKOTA. THE VEHICLES INVOLVED ARE 1992-1994 TEMPO/TOPAZ VEHICLES WITH 3.0L ENGINES; 1994 TEMPO/TOPAZ WITH 2.3L ENGINES; 1992-1995 TAURUS…
NHTSA 97V019000
Engine And Engine Cooling › Cooling System › Fan
Date: 25/02/1997
THESE VEHICLES ARE ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: ALASKA, IOWA, MINNESOTA, NEBRASKA, NORTH DAKOTA, AND SOUTH DAKOTA. THE VEHICLES INVOLVED ARE 1992-1994 TEMPO/TOPAZ VEHICLES WITH 3.0L ENGINES; 1994 TEMPO/TOPAZ WITH 2.3L ENGINES; 1992-1995 TAURUS…
NHTSA 86V082000
Seats
Date: 24/06/1986
THE FORWARD BOLT THAT PROVIDES PART OF THE ATTACHMENT BETWEEN THE DRIVER'S SEAT BACK ASSEMBLY AND THE SEAT CUSHION FRAME MAY BE SUBJECT TO FATIGUE FRACTURE. …
NHTSA 85V134000
Electrical System › Ignition › Module
Date: 22/10/1985
THE UNEXPECTED OPEN THROTTLE CAUSES AN INCREASE IN ENGINE SPEED WHICH COULD RESULT IN LOSS OF CONTROL OF THE CAR AND A POTENTIAL CRASH. …
NHTSA 83V134000
Seat Belts › Front › Anchorage
Date: 20/12/1983
THE BOLTS THAT ATTACH THE D-SHAPED RING FOR THE SHOULDER BELT ARE INADEQUATELY SUPPORTED BY THE MATERIAL IN WHICH THEY ARE MOUNTED. THE ATTACHMENT DOES NOT COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 210, "SEAT BELT ASSEMBLY ANCHORAGES".
NHTSA 83V055000
Interior Lighting
Date: 16/05/1983
IN THE EVENT OF A SHORT CIRCUIT IN THE INSTRUMENT PANEL, THE HEADLAMP AND INTERIOR ILLUMINATION CONTROL SWITCHES COULD OVERHEAT.
NHTSA 85V145000
Suspension › Rear
Date: 05/11/1985
REAR SUPENSION CONTROL ARM-TO-SPINDLE ATTACHMENT BOLTS MAY BE SUBJECT TO FRACTURE CAUSING THE REAR SPINDLE TO SEPARATE DURING USE OF CAR. …
NHTSA 85V145000
Suspension › Rear
Date: 05/11/1985
REAR SUPENSION CONTROL ARM-TO-SPINDLE ATTACHMENT BOLTS MAY BE SUBJECT TO FRACTURE CAUSING THE REAR SPINDLE TO SEPARATE DURING USE OF CAR. …
NHTSA 85V086000
Suspension › Rear
Date: 03/07/1985
REAR SUSPENSION CONTROL ARM-TO-SPINDLE ATTACHMENT BOLTS MAY BE SUBJECT TO FRACTURE DURING USE OF CAR. CONSEQUENCE OF DEFECT: IF BOLTS FRACTURE, REAR SPINDLE COULD…
NHTSA 85V086000
Suspension › Rear
Date: 03/07/1985
REAR SUSPENSION CONTROL ARM-TO-SPINDLE ATTACHMENT BOLTS MAY BE SUBJECT TO FRACTURE DURING USE OF CAR. CONSEQUENCE OF DEFECT: IF BOLTS FRACTURE, REAR SPINDLE COULD…
NHTSA 88V024000
Vehicle Speed Control
Date: 01/03/1988
TWO ATTACHMENT SCREWS FOR THE THROTTLE POSITION SENSORS COULD LOOSEN AND BACK OUT.
COMMON OBD2 CODES TO CHECK
P0420
P0420
Powertrain
P0171
P0171
Powertrain
P0300
P0300
Powertrain
P0128
P0128
Powertrain
P0455
P0455
Powertrain
P0700
P0700
Transmission
P0442
P0442
Powertrain
P0172
P0172
Powertrain
P0401
P0401
Powertrain
All documented fault codes for this vehicle
The most documented diagnostic codes for this model, by system and severity. Tap a code for the full guide.
P0455
powertrain
LOW⏱ 0.62h avgP0442
powertrain
LOW⏱ 0.62h avgP0440
powertrain
LOW⏱ 0.78h avgP0420
powertrain
MEDIUM⏱ 1.24h avgP0300
powertrain
HIGH⏱ 1.22h avgP0172
powertrain
MEDIUM⏱ 1.13h avgP0171
powertrain
MEDIUM⏱ 0.95h avgP0730
transmission
MEDIUM⏱ 1.25h avgP0700
transmission
HIGH⏱ 1.25h avgP0401
powertrain
MEDIUM⏱ 1.25h avgP0011
powertrain
MEDIUM⏱ 5.4h avgU0100
network
HIGHP0562
electrical
MEDIUM⏱ 0.58h avgP0128
powertrain
MEDIUM⏱ 0.88h avg
DASHBOARD WARNING LIGHTS — UNIVERSAL GUIDE
53 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.
Show all dashboard warning lights
🔴 IMMEDIATE STOP — pull over
Oil Pressure WarningEngine
Engine Temperature WarningCooling
Brake System WarningBrakes
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
Battery / Charging SystemElectrical
Low Fuel WarningFuel
ABS WarningBrakes
Brake Pad Wear IndicatorBrakes
Electronic Parking Brake (EPB)Brakes
Power Steering WarningSteering
ESC / Stability Control FaultChassis
Tire Pressure Warning (TPMS)Chassis
Transmission Temperature WarningTransmission
Transmission / Gearbox FaultTransmission
Airbag / SRS WarningActive safety
EGR / Exhaust Gas Recirculation FaultEmissions
Catalytic Converter / Emissions FaultEmissions
AdBlue / DEF Level LowEmissions
Coolant Level LowCooling
Hybrid / EV System WarningHybrid
EV Charge System FaultHybrid
12V Battery (Hybrid/EV Auxiliary)Hybrid
Suspension Fault / Air SuspensionSuspension
CAN Bus / Network Communication FaultNetwork
Water in Fuel FilterFuel
Diesel Injector FaultFuel
Steering Angle Sensor FaultSteering
Turbo / Boost Pressure FaultEngine
Regenerative Braking Fault (Hybrid/EV)Hybrid
🟡 MONITOR
Fuel Cap / Evap SystemEmissions
4WD / AWD SystemDrivetrain
Bulb Failure WarningLighting
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
A/C System FaultHvac
Clutch Wear WarningTransmission
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
Rear Fog Light IndicatorLighting
Lane Departure / LDWS WarningADAS
Forward Collision Warning (FCW/AEB)ADAS
Blind Spot Monitor FaultADAS
Rear Parking Sensor / Camera FaultADAS
Windshield Washer Fluid LowMaintenance
Door Open WarningBody
Hood / Trunk Open WarningBody
Gear Shift Indicator (Manual)Transmission
Sport / Performance Mode ActiveTransmission
REPORTED COMPLAINTS & PROBLEMS (NHTSA)
344 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Mercury Topaz across model years 1984–1994. These are real, verified reports submitted by vehicle owners.
21 crash reports 50 fires 17 injuries 2 deaths
Complaints by model year (most reported first)
Model year 199358
Model year 199450
Model year 198947
Model year 199244
Model year 199044
Model year 199140
Model year 198821
Model year 198716
Most reported components (all years)
Electrical System90
Engine And Engine Cooling70
Seat Belts60
Service Brakes33
Hydraulic32
Fuel System23
Sample reports
SEPT 9, 2003 [XXX] FORD MOTOR COMPANY ONE AMERICAN ROAD DEARBORN, MI 48126 DEAR[XXX]: THIS LETTER TO YOU COMES AFTER REPEATED ATTEMPTS OVER THE YEARS TO COLLECT THE $223.30 CLAIM PAST DUE AND OWED TO ME FOR THE 2002 RECALL ANNOU… (MY 1993)
RECEIVED LETTER FROM MANUFACTURER FOR IGNITION SWITCH SEPT.1996. HAD RECALL WORK DONE, HAD ALTERNATOR AND WIRING HARNESS PUT IN DEC. 1996. INSIDE WAS A WARNING LABEL STATING THAT ALTERNATOR COULD CAUSE FIRE. *AK (MY 1989)
WHEN THE BRAKES WERE APPLIED BRAKE PEDAL BECAME VERY HARD, RESULTING IN EXTENDED STOPPING DISTANCE. ALSO, VEHICLE SHUT OFF UNEXPECTEDLY. *AK (MY 1993)
WHEN I ASKED THE DEALER WHERE IT WAS TOWED (GRINWALD FORD) LOCATED IN WATERTOWN WI TO CHECK FOR RECALL NOTICES, OR WARRANTY INFO, THEY INFORMED ME "SNOTTILY" THAT "WHAT MAKES YOU THINK THIS IS COVERED" - SERVICE MGR ADMITTED TO NEVER H… (MY 1993)
Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 1984–1994.
Frequently Asked Questions
Does the Mercury Topaz have any safety recalls?
Yes — 23 official NHTSA recall campaign(s) affect this model, mainly: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN, ELECTRICAL SYSTEM:IGNITION, AIR BAGS:FRONTAL. Check the recalls section for your exact year/VIN.
What does fault code P0300 mean on the Mercury Topaz?
Random/Multiple Cylinder Misfire Detected This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0128 mean on the Mercury Topaz?
Coolant temperature below thermostat regulating temperature — thermostat stuck open or faulty This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0011 mean on the Mercury Topaz?
A Camshaft Position Timing Over-Advanced or System Performance (Bank 1) This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
Are brakes problems common on the Mercury Topaz?
Yes — 31 of 264 real owner reports filed with NHTSA mention the brakes. One owner reported: “REAR BRAKE ADJUSTER, CONTINUE TO FAIL, EVERY 6 MONTHS TAKE THE DRUMS OFF TO ADJUST PE96-005 ACTIVE. *AK…” See the owner-reported complaints section below for more.
Are electrical problems common on the Mercury Topaz?
Yes — 41 of 264 real owner reports filed with NHTSA mention the electrical. One owner reported: “TOOK VEHICLE TO DEALER FOR HEATER HOSE REPAIR. WHILE THERE, WAS INFORMED BY MECHANIC THAT HEADLIGHT WOULD FLUTTER/FLICKER OFF AND ON. COULD NOT FIND CAUSE OF PROBLEM. *AK…” See the owner-reported complaints section below for more.
Are engine problems common on the Mercury Topaz?
Yes — 57 of 264 real owner reports filed with NHTSA mention the engine. One owner reported: “WHEN VEHICLE GETS HOT IT WILL STALL, SOMETIMES VEHICLE WILL NOT START.*AK…” See the owner-reported complaints section below for more.
Which OBD2 fault codes are commonly documented for the Mercury Topaz (1984–1994)?
Commonly documented OBD2 codes across many vehicles include: P0420, P0300, P0171. Find the full description, likely causes and estimated repair costs in the OBD2 Codes section on this page.
How often should the Mercury Topaz (1984–1994) be serviced?
Routine maintenance for the Mercury Topaz (1984–1994) typically includes an oil change every 6,000–9,000 miles (10,000–15,000 km), an air filter every 12,000–18,000 miles (20,000–30,000 km) and a brake inspection every 12,000 miles (20,000 km). Check the full plan with specific intervals in the Scheduled Maintenance section on this page.
Have a specific fault code on your Mercury Topaz (1984–1994)? Search the code in the OBD2 section of this page or use the full TroubleAtlas DTC database. Need tyres? Compare prices and compatible sizes in the TroubleAtlas comparator.