Saab9-2X Aero2006Overview/saab/9-2x-aero/2006/base/

2006 Saab 9-2X Aero

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2006 9-2X Aero.

Body PASSENGER CARTransmission Automatic 4-spd

The 2006 Saab 9-2X Aero is a passenger car defined by its automatic 4-speed transmission and an engine requiring 4.2 quarts of 5W-30 API oil, yielding an EPA-rated 18 city and 23 highway mpg. While its 20 mpg combined efficiency establishes its operational baseline, the vehicle's reliability profile demands significant scrutiny. This model year sits as a troubled chapter in the 9-2X's history, marked by 10 owner complaints and 7 recalls, with airbags representing the top complaint area. Consequently, researchers must weigh the vehicle's routine mechanical specifications against a legacy of substantial safety concerns that fundamentally impact its viability.

Model year20062005

Quick specs

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

Engine oil capacity4.2 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
Lug nut torque72 ft-lbsOEM · verified
EPA fuel economy18/23/20 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 35 · 550 CCA battery, OE oil filter 32009814. 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 35 · 550 CCAOEM · verified

OE service part numbers OEM · verified

Engine oil filter32009814
Engine air filter32005787
Spark plug32005952 alt 32010632
Front wiper blades32009841 alt 32009840
Serpentine belt32008103 alt 32010850
Thermostat32005912 alt 32010618
Cabin air filter32008082

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length176 in
Overall width66.9 in
Overall height57.9 in
Wheelbase99.6 in
Curb weight3071 lb
Track (front / rear)57.1 / 56.7 in
Weight distribution (front / rear)56/44

Ratings & economy EPA / vPIC

EPA city / highway / combined18 / 23 / 20 mpg
Drivetrain4-Wheel or All-Wheel Drive
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

This engine holds 4.2 qt of 5W-30 API engine oil. Torque lug nuts to 72 ft-lbs, the oil drain plug to 19.0 ft-lbs. The firing order is 1-3-4-2.

Lubricants & capacities

Automatic Transmission FluidCastrol Transmax J
Automatic Transmission Fluid Capacity10
Engine CoolantDEXCOOL OR EQUIVALENT
Engine Oil5W-30 · API
Engine Oil Capacity4.2 qt
Manual Transmission Fluid75W-90 · GL-5
Manual Transmission Fluid Capacity7.4
Power Steering FluidATF

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs6 ft-lbs
Crankshaft Pulley and/or Damper Bolts133 ft-lbs
Intake Manifold to Engine Bolts18 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22 ft-lbs
Engine Oil Pan Drain Plug19.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs5 ft-lbs

Chassis torques

Lug Nuts72 ft-lbs
Automatic Transmission Drain Plug13.0 ft-lbs
Front Wheel Hub162 ft-lbs
Rear Wheel Hub140 ft-lbs

Ignition

Cylinder Firing Order1-3-2-4
Cylinder Firing Order1-3-4-2
Spark Plug Gap0.039-0.043 in
Spark Plug Torque15.0 ft-lbs
Ignition TimingMT: 10, AT: 15 degrees
Ignition Timing Acceptable Variance8 degrees
Ignition Timing Reference RPMMT: 650, AT: 700 rpm

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.10 lbs
Oil GroupPAG
Oil TypeSaab part number 4074787 or equivalent
Oil Capacity4.17 oz
Standard BCI Group Number35
Standard BCI Cranking Performance550 cca

Service checks

Pressure Test23 psi
Radiator Cap Pressure Relief14-18 psi
Thermostat Opening Temperature169-196 °F
Regulated Fuel System Pressure (Without Vacuum)41.0-46.0 psi
Regulated Fuel System Pressure (With Vacuum)33.0-38.0 psi
Regulated Fuel System Pressure (Without Vacuum)49.0-52.0 psi

Brakes

Torque Caliper to Bracket19.5 ft-lbs / 27.5 ft-lbs
Torque to Knuckle59 ft-lbs / 38 ft-lbs
Minimum Pad ThicknessFront: 0.059; Rear: 0.059 in
Rotor Runout Limit0.003 in / 0.0027 in
Rotor Minimum Machining0.945 in / 0.394 in
Rotor Discard at or Under0.866 in / 0.344 in
Rotor Finish0.846 μin / 0.314 μin

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
126 ft. lbs., Step 2: 45 degrees, Step 3: 1526 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
148 ft. lbs., Step 2: 3048 ft. lbs
Main Bearings — tightening sequence 1 stages
137 ft. lbs., Step 2: 60 degrees, Step 3: 1537 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 7,500 mi; coolant every 30,000 mi. The big-interval services (every 30,000 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 7,500 miCabin Air Filter (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miBrake Line (inspect) · Brake Linings (inspect) · Clutch Master Cylinder (inspect fluid level) · Parking Brake System (inspect) · Power Steering System (inspect) · Suspension System (inspect)
Every 30,000 miBrake Hydraulic System (drain, refill & bleed) · CV Joint Boot (inspect) · Driveshaft (inspect) · Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Fuel Line (inspect)
Every 60,000 miFuel Filter (replace) · Wheel Bearing (inspect)
At 105,000 miAccessory Drive 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.

Owner complaints about the 2006 Saab 9-2X Aero dominate in one area — the air bags, 7 of 10 reports (70%), well ahead of the next concern. That matters, because the air bags are also the target of recalls 20V-003 and 20V-001 on this vehicle — so the single most useful check before buying or servicing one is confirming they were actually performed. 1 of the reports describe a crash and 1 a fire — a small share of the total, but worth weighing against the air bags pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

7
Open recalls
NHTSA campaigns
128
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
10
Owner complaints
1 involved a crash · 1 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★

Owner complaints filed with NHTSA, by component

All 10 complaints on record, top 3 components.

Air Bags7
Exterior Lighting2
Air Bags,Structure,Engine1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 7 campaigns on record for this vehicle.

20V003000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 02/01/2020

Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester, 2003-2006 Baja, 2004-2011 Impreza, 2004-2014 WRX (including STI), 2003-2014 Legacy and Outback, and 2005-2006 Saab 9-2X vehicles originally sold… Remedy: Subaru will notify their owners. General Motors will notify Saab owners. Dealers will replace the passenger air bag inflators, free of charge. The recall began January 7, 2020…

20V001000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 02/01/2020

Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester, 2003-2006 Baja, 2004-2011 Impreza, 2004-2014 WRX (STI included), 2003-2014 Legacy and Outback, and 2005-2006 Saab 9-2X vehicles originally sold… Remedy: Subaru will notify their owners. General Motors will notify Saab owners. Dealers will replace the passenger air bag inflators with alternate inflators, free of charge. The recall…

Technical service bulletins NHTSA · verified

Showing 5 of 128 bulletins on record with NHTSA.

BulletinDateComponentSummary
PIP5601C2025-07-18Unknown Or OtherThis PI communicates the requirement to provide a pico file to receive diagnostic…
PIT5074R2025-05-30Unknown Or OtherThis Preliminary Information communication provides information to the technician about…
PIT5074R2025-05-30Unknown Or OtherThis Preliminary Information communication provides information to the technician about…
PIT5074R2025-05-30Unknown Or OtherThis Preliminary Information communication provides information to the technician about…
02-00-89-002X2024-09-09Unknown Or OtherThis service bulletin provides information for dealers/technicians on When and How to…

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 9-2X Aero. 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.

Reference guides

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

Frequently asked

How much oil does the 2006 9-2X Aero take?

4.2 qt of 5W-30 API, per the factory manual.

Does the 2006 9-2X Aero have open recalls?

NHTSA lists 7 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 9-2X Aero get?

EPA figures are 18 city / 23 highway / 20 combined mpg.