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2007 Mercury Mariner Hybrid

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2007 Mariner Hybrid.

Body SUVTransmission Automatic (variable gear ratios)

The 2007 Mercury Mariner Hybrid is an SUV that pairs a gasoline engine with an electric motor, channeling output through an automatic transmission with variable gear ratios and requiring 4.5 quarts of 5W-20 API oil. It delivers EPA-rated fuel economy of 28 mpg city and 27 mpg highway. In terms of reliability, this model year accumulated 31 owner complaints—primarily about the service brakes—and no recalls, placing it in the middle of the 2006–2012 generation’s complaint range, where the 2010 model peaked at 278 and the 2012 model dropped to just one.

Model year2011 2010 2009 2008 2007 2006

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 torque100 ft-lbsOEM · verified

EPA fuel economy28/27/27 mpgEPA · 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 size235-70R16OEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic (variable gear ratios)

Ratings & economy EPA / vPIC

EPA city / highway / combined	28 / 27 / 27 mpg
Drivetrain	4-Wheel or All-Wheel Drive
Recommended fuel	Regular Gasoline

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 100 ft-lbs, the oil drain plug to 18.0 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

Automatic Transmission Fluid	Ford Mercon LV
Automatic Transmission Fluid Capacity	5
Brake Fluid	DOT 3
Engine Coolant	USE FORD PREMIUM GOLD COOLANT
Engine Oil	5W-20 · API
Engine Oil Capacity	4.5 qt
Engine Oil	5W-20 · API
Engine Oil Capacity	6.0 qt

Engine torques

Intake Manifold to Engine Bolts	13 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	40 ft-lbs
Intake Manifold to Engine Bolts	7.4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	15 ft-lbs
Engine Oil Pan Drain Plug	21.0 ft-lbs
Engine Oil Pan Drain Plug	21.0 ft-lbs
Engine Oil Pan Drain Plug	18.0 ft-lbs

Chassis torques

Lug Nuts	100 ft-lbs
Transfer Case Fill Plug	AT: 25.0, MT: 35.0 ft-lbs
Transfer Case Drain Plug	10.0 ft-lbs
Front Wheel Hub	214 ft-lbs
Rear Wheel Hub	214 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
Spark Plug Manufacturer	Motorcraft
Spark Plug Gap	0.049-0.053 in
Spark Plug Torque	9.0 ft-lbs

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	2.00 lbs
Oil Group	PAG
Oil Type	46
Oil Capacity	7.00 oz
Refrigerant	R134a
Refrigerant Capacity	2.00-2.56 lbs
Standard BCI Group Number	40R

Service checks

Pressure Test	20 psi
Radiator Cap Pressure Relief	17-21 psi
Thermostat Opening Temperature	194 °F
Pressure Test	20 psi
Radiator Cap Pressure Relief	17-21 psi
Thermostat Opening Temperature	183-190 °F
Key ON Engine OFF (KOEO)	39
RPM	39 @ Idle rpm

Brakes

Torque Caliper to Bracket	33 ft-lbs / 26 ft-lbs
Torque to Knuckle	129 ft-lbs
Minimum Pad Thickness	Front: 0.118; Rear: 0.118 in
Minimum Pad Thickness	Front: 0.118; Rear: 0.118 in
Minimum Shoe Thickness	0.039 in
Rotor Minimum Machining	0.968 in / 0.88 in / 0.456 in
Rotor Discard at or Under	0.944 in / 0.86 in / 0.433 in
Drum Discard at-or-over	9.05

Multi-step torque procedures OEM · verified

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages

5 ft. lbs., Step 2: 12.1

5 ft. lbs

Connecting Rod (Large End) Bearings — tightening sequence 1 stages

21 ft. lbs., Step 2: 90

21 ft. lbs

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

74 ft. lbs., step 90

74 ft. lbs

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

89 ft. lbs., step 2: 360 degrees, step 4: 37 ft. lbs., step 5: 90

89 ft. lbs

Cylinder Head — tightening sequence 5 stages

1	3.7 ft. lbs.	3.7 ft. lbs
2	11 ft. lbs.	11 ft. lbs
3	33 ft. lbs.	33 ft. lbs
4	90 degrees	90 degrees
5	90

Cylinder Head — tightening sequence 5 stages

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

1	37.0 ft. lbs.	37 ft. lbs
2	Loosen 360 degrees	360 degrees
3	22.0 ft. lbs.	22 ft. lbs
4	90 degrees	90 degrees
5	90 degrees	90 degrees

Engine Flywheel Bolts — tightening sequence 1 stages

37 ft. lbs., Step 2: 59 ft. lbs., Step 3: 83

37 ft. lbs

Main Bearings — tightening sequence 1 stages

4 ft. lbs., Step 2: 18 ft. lbs., Step 3: 90

4 ft. lbs

Oil Pump to Cylinder BLock Bolts/Studs — tightening sequence 1 stages

7 ft. lbs., Step 2: 15

7 ft. lbs

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; coolant every 50,000 mi. The big-interval services (every 50,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 5,000 mi	Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 10,000 mi	Hybrid Battery Compartment Air Filter (inspect)
Every 15,000 mi	Brake System (inspect) · Cabin Air Filter (replace) · Engine Coolant System Hoses (inspect) · Steering Linkage (lubricate) · Steering System (inspect) · Suspension Ball Joint (inspect)
Every 30,000 mi	Engine Air Filter Element (replace) · Exhaust System (Complete) (inspect) · Fuel Filter (replace) · Temperature Controlled Seat Air Filter (replace)
Every 50,000 mi	Engine Coolant System (drain, flush & refill)
At 100,000 mi	Engine Coolant System (drain, flush & refill)
Every 100,000 mi	Accessory Drive Belt (inspect) · PCV Valve (replace) · Spark Plugs (replace)
At 150,000 mi	Drive Axle Assembly (drain & refill) · Drive Belt (replace) · Transfer Case Assembly (drain & refill) · Transmission Fluid & Filter (replace)

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 2007 Mercury Mariner Hybrid occupies a comparatively stable position within this generation's federal record, recording 31 complaints and zero recalls—modest improvements over 2006's 38 complaints and 13 TSBs. The top complaint areas that year centered on Service Brakes (7 complaints), Engine & Engine Cooling (5), and Electrical System (3), with Hybrid Propulsion System contributing 2 additional complaints; the data does not specify the root causes behind these categories. Notably, 2007 logged one crash-related complaint and zero fire complaints, suggesting no immediate safety pattern at that stage. The trajectory that follows is telling: complaints surged to 116 in 2008 and escalated further to 278 by 2010, when three recalls, four investigations, and 35 TSBs indicate systemic reliability deterioration. Compared to the 2008-2010 escalation, the 2007 model appears to precede a marked decline rather than embody it. Given its zero recalls, lower complaint volume, and placement before the documented spike, the 2007 model year represents a comparatively safer acquisition within this generation—though the brake-related complaints warrant a thorough pre-purchase inspection.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

1 involved a crash · 0 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’06’07’08 ’09 ’10 ’12

Owner complaints filed with NHTSA, by component

All 31 complaints on record, top 8 components.

Service Brakes7

Engine & Engine Cooling5

Electrical System3

Hybrid Propulsion System2

Steering2

Suspension,Structure1

Engine1

Power Train,Traction Control System,Service Brakes1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 6 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
SSM-45870	2016-06-08	Service Brakes, Hydraulic	2005-2008 ESCAPE/MARINER HYBRID - ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR…
ASI-22242	2012-03-01	Service Brakes, Hydraulic	FORD/MERCURY: SOME HYBRID VEHICLES MAY REQUIRE A UNIQUE BLEED PROCEDURE AFTER A…
TSB-09-19-12	2010-04-01	Power Train	FORD: SOME HYBRID VEHICLES MAY EXHIBIT AN INTERMITTENT RED TRIANGLE ON AND STOP SAFELY…
TSB-09-15-3	2009-12-01	Engine And Engine Cooling	FORD/MERCURY: SOME VEHICLES MAY SET DIAGNOSTIC TROUBLE CODES (DTCS) P0A81 (BATTERY PACK…
TSB-08-24-5	2009-06-01	Equipment	FORD/MERCURY: VEHICLES MAY EXHIBIT A RED TRIANGLE LIGHT AND CODES INDICATING A TRANSAXLE…

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 Mariner Hybrid. 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 2007 Mariner Hybrid take?

4.5 qt of 5W-20 API MEETING FORD SPECIFICATION WSS-M2C945-A, per the factory manual.

Does the 2007 Mariner Hybrid have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Mariner Hybrid get?

EPA figures are 28 city / 27 highway / 27 combined mpg.