Mercury›Cougar›1999›Overview/mercury/cougar/1999/base/

1999 Mercury Cougar

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1999 Cougar.

The 1999 Mercury Cougar occupies a fraught position in the model's 1990–2002 history, a year that demands careful attention from any researcher evaluating this platform's long-term dependability. Under the hood, the engine takes 4.5 quarts of 5W-20 API oil — a straightforward enough maintenance spec — but the real story lies in the reliability record: 521 owner complaints and nine recalls make 1999 the worst year by a staggering margin, especially contrasted with 1998's near-flawless single complaint. Electrical system issues dominate the complaint landscape, and for anyone studying the Cougar's trajectory, this model year represents the peak of the model's problems rather than a representative snapshot of its overall quality.

Model year2002 2001 2000 1999 1997 1996 1995 1994 1993

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity4.5 qtOEM · verified

Engine oil type5W-20 APIOEM · verified

Lug nut torque85-105 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 40R · 590 CCA battery. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 40R · 590 CCAOEM · verified

Tire sizeP205-60R15OEM · verified

Wheel / rim6 inOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length	185 in
Overall width	69.7 in
Overall height	52.4 in
Wheelbase	106.3 in
Curb weight	2829 lb
Track (front / rear)	59.4 / 58.7 in

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 4.5 qt of 5W-20 API engine oil, DOT 3 brake fluid. Torque lug nuts to 85-105 ft-lbs, the oil drain plug to 19.0 ft-lbs. The firing order is 1-4-2-5-3-6. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Brake Fluid	DOT 3
Engine Oil	5W-20 · API
Engine Oil Capacity	4.5 qt
Power Steering Fluid	ATF

Engine torques

Camshaft Sprocket and/or Gear Bolt(s)	47.0-53.0 ft-lbs
Crankshaft Pulley and/or Damper Bolts	88 ft-lbs
Intake Manifold to Engine Bolts	12.0-15.0 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	13.0-16.0 ft-lbs
Intake Manifold to Engine Bolts	7.4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	15.0 ft-lbs
Engine Oil Pan Drain Plug	18.0-22.0 ft-lbs
Engine Oil Pan Drain Plug	19.0 ft-lbs

Chassis torques

Lug Nuts	85-105 ft-lbs
Front Wheel Hub	214 ft-lbs
Rear Wheel Hub	214 ft-lbs

Ignition

Cylinder Firing Order	1-3-4-2
Cylinder Firing Order	1-4-2-5-3-6
Curb Idle Speed (No Load)	845 rpm
Curb Idle Speed Variance (No Load)	55 rpm
Curb Idle Speed (No Load)	MT: 772.5, AT: 730 rpm
Curb Idle Speed Variance (No Load)	MT: 42.5, AT: 30 rpm
Spark Plug Manufacturer	Motorcraft
Spark Plug Gap	0.039-0.0.043 in

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	1.63 lbs
Oil Group	PAG
Oil Type	46
Oil Capacity	6.76 oz
Standard BCI Group Number	40R
Standard BCI Cranking Performance	590 cca
Standard BCI Group Number	40R

Service checks

Pressure Test	13-18 psi
Radiator Cap Pressure Relief	13-18 psi
Thermostat Opening Temperature	187-194 °F
Pressure Test	13-18 psi
Radiator Cap Pressure Relief	13-18 psi
Thermostat Opening Temperature	183-190 °F
Key ON Engine OFF (KOEO)	30.0-45.0
Regulated Fuel System Pressure (With Vacuum)	45.0-60.0 psi

Brakes

Brake Application	WITH REAR DISC / WITH STANDARD
Torque Caliper to Bracket	30 ft-lbs / 89 ft-lbs
Torque to Knuckle	89 ft-lbs / 85-105 ft-lbs
Minimum Pad Thickness	Front: 0.125; Rear: 0.125 in
Brake Application	WITH REAR DISC / WITH STANDARD
Rotor Max Parallel Variation	0.0006 in
Rotor Runout Limit	0.003 in
Rotor Nominal Thickness From	0.79 in / 0.95 in

Multi-step torque procedures OEM · verified

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages

37 ft. lbs., step 2: 90

37 ft. lbs

Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Coat bolt threads with clean engine oil.

1	18.0 ft. lbs.	18 ft. lbs
2	33.0 ft. lbs.	33 ft. lbs
3	105 degrees	105 degrees

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 5,000 mi; spark plugs every 100,000 mi.

Every 5,000 mi	Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 mi	Brake System (inspect) · Cabin Air Filter (replace) · Engine Coolant System (leak inspection) · Steering Linkage (inspect) · Suspension System (inspect)
Every 30,000 mi	Engine Air Filter Element (replace) · Exhaust System Heat Shield (inspect) · Fuel Filter (replace)
Every 100,000 mi	Accessory Drive Belt (inspect) · PCV Valve (replace) · Spark Plugs (replace)
At 120,000 mi	Timing Belt (inspect)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The federal record reveals a dramatic spike in issues for the 1999 model year, which suffered 521 complaints and 9 recalls compared to just 1 complaint and 0 recalls for the preceding 1998 model. This extreme escalation indicates 1999 was a highly troubled launch year for a new generation, as these metrics steadily declined in subsequent years, dropping to 213 complaints and 5 recalls in 2000, and further to 82 complaints and 3 recalls in 2001. For the 1999 Cougar specifically, the data points to widespread deficiencies concentrated in the Electrical System (52 complaints), Service Brakes, Hydraulic (50), Visibility (44), and Engine & Engine Cooling (36), alongside 23 crash and 3 fire complaints. While the data does not specify the root causes for these failures, the sheer volume of 229 technical service bulletins and 9 recalls confirms significant design and manufacturing defects. Given its position as the most problematic year in the generation by a massive margin, the 1999 Cougar is a high-risk purchase, and buyers should strongly consider the improved 2001 or 2002 models instead.

Open recalls

NHTSA campaigns

229

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

521

Owner complaints

23 involved a crash · 3 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’90 ’91 ’92 ’93 ’94 ’95 ’96 ’97 ’98’99’00 ’01 ’02

Owner complaints filed with NHTSA, by component

All 521 complaints on record, top 8 components.

Electrical System52

Service Brakes, Hydraulic50

Visibility44

Engine & Engine Cooling36

Fuel System, Gasoline29

Power Train28

Structure24

Tires24

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 9 campaigns on record for this vehicle.

08E033000SuspensionReported 14/04/2008

FEDERAL MOGUL IS RECALLING 6,903 AFTERMARKET BALL JOINT ASSEMBLIES SHIPPED BETWEEN NOVEMBER 9, 2007 AND MARCH 26, 2008, WHICH MAY HAVE BEEN PACKAGED WITH INCORRECT NUTS. THE PART NUMBERS PACKAGED WITH INCORRECT NUTS… Remedy: FEDERAL MOGUL WILL NOTIFY OWNERS AND REPLACE THE PARTS FREE OF CHARGE. THE RECALL BEGAN ON MAY 22, 2008. OWNERS CAN CONTACT FEDERAL MOGUL AT 877-489-6659.

06E022000Service Brakes, HydraulicReported 13/03/2006

CERTAIN AFTERMARKET BRAKE HYDRAULIC MASTER CYLINDERS SOLD AS REPLACEMENT BRAKE CYLINDERS FOR CERTAIN FORD, DAIMLERCHRYSLER, AND JEEP PASSENGER VEHICLES. THESE BRAKE CYLINDERS WERE SOLD UNDER THE BRAND NAMES OF NAPA… Remedy: AFFINIA (BRAKE PARTS, INC.) WILL REPLACE THE SUBJECT BRAKE HYDRAULIC MASTER CYLINDERS FREE OF CHARGE. THE RECALL BEGAN ON MARCH 20, 2006. OWNERS CAN CONTACT AFFINA GROUP CUSTOMER…

Technical service bulletins NHTSA · verified

Showing 5 of 229 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
042107	2004-12-13	Power Train	GENERAL (PCM) POWER TRAIN CONTROL MODULE PROGRAMMING PROCEDURES. *TT
04217	2004-11-01	Power Train	GENERAL POWER TRAIN CONTROL MODULE (PCM) PROGRAMMING PROCEDURES. *TT
041514	2004-08-09	Visibility	REAR WINDOW DEFROSTER GRID/INTEGRAL ANTENNA DIAGNOSIS AND REPAIR - TERMINAL TAB REPAIR…
041516	2004-08-09	Electrical System	MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE(S) P0420 AND/OR…
031501	2004-07-12	Visibility	INOPERATIVE ELECTRIC REAR WINDOW DEFROSTER (HEATED BACKLITE) GRID LINES, INTEGRAL ANTENNA…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420

Catalyst system efficiency below threshold — Bank 1

P0300

Random / multiple cylinder misfire detected

P0171

System too lean — Bank 1

P0455

Evaporative emission system leak detected — large leak

P0128

Coolant thermostat below regulating temperature

P0442

Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN

Decode a VIN to confirm the transmission and build data for a specific Cougar. OEM

Build data

Plant, GVWR class, engine and body data for any 17-character VIN.

Recalls

Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Group 40R battery Vehicles taking 4.5 qt

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBs OBD-II trouble codes Torque specifications Maintenance schedules Fluid capacities & specs

Frequently asked

How much oil does the 1999 Cougar take?

4.5 qt of 5W-20 API, per the factory manual.

Does the 1999 Cougar have open recalls?

NHTSA lists 9 recall campaign(s) for this model year. Check your specific vehicle by VIN.