CadillacXLR2005Overview/cadillac/xlr/2005/base/

2005 Cadillac XLR

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2005 XLR.

Body PASSENGER CARTransmission Automatic (S5)

The 2005 Cadillac XLR is a luxury passenger car built on a body‑on‑chassis platform that houses a 5‑speed automatic (S5) transmission and requires 7.5 qt of 5W‑30 API‑rated engine oil, delivering EPA‑rated fuel economy of 15 / 23 / 18 mpg. Its standout specification is the robust yet efficient powertrain that balances performance with everyday drivability, while the vehicle’s overall structure remains a focal point for owner feedback. In the broader context of the XLR’s reliability history, the 2005 model year sits amid a decade of modest complaint rates—31 total owner complaints, with the structure noted as the top issue and three recalls—indicating a relatively stable but not flawless segment within the brand’s evolving reliability profile.

Model year200920082007200620052004

Quick specs

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

Engine oil capacity7.5 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
Lug nut torque100 ft-lbsOEM · verified
EPA fuel economy15/23/18 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 86 · 590 CCA battery, OE oil filter 12731179. Note the factory cabin air filter is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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 86 · 590 CCAOEM · verified

OE service part numbers OEM · verified

Engine oil filter12731179
Engine air filter19166106
Spark plug12571533
Battery88866262
Front wiper blades19388169
Serpentine belt12578060 alt 12578061
Thermostat12559807 alt 12563623
Cabin air filter15861929 discontinued

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S5)

Dimensions & weight NHTSA vPIC

Overall length177.6 in
Overall width72.4 in
Overall height50.4 in
Wheelbase105.9 in
Curb weight3646 lb
Track (front / rear)62.2 / 62.2 in
Weight distribution (front / rear)49/51

Ratings & economy EPA / vPIC

EPA city / highway / combined15 / 23 / 18 mpg
DrivetrainRear-Wheel Drive
Recommended fuelPremium Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the XLR of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

5.8–6.5 sec0–60 mph (tested)quickest 5.80 sec — 2004 Roadster
YearTrim / engine0–60¼ mileHPDrivetrain
2004Roadster 4.6L V85.80 sec14.20 sec320 hpRWD
2004Roadster 4.6L V85.80 sec14.10 sec320 hpRWD
2004Roadster 4.6L V85.90 sec14.40 sec320 hpRWD
2004Roadster 4.6L V86.00 sec14.15 sec320 hpRWD
2004Roadster 4.6L V86.50 sec14.80 sec320 hpRWD

Service quick specs OEM factory data

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

This engine holds 7.5 qt of 5W-30 API engine oil, 75W-90 · GL-5 in the differential. Torque lug nuts to 100 ft-lbs, the oil drain plug to 15.0 ft-lbs. The firing order is 1-2-7-3-4-5-6-8. 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 FluidATF
Automatic Transmission Fluid Capacity5
Differential Gear Oil75W-90 · GL-5
Differential Gear Oil Capacity3.3 qt
Engine Oil5W-30 · API
Engine Oil Capacity7.5 qt
Power Steering FluidUSE GM PART NO. 1052884 OR EQUIVALENT

Engine torques

Intake Manifold to Engine Bolts7.4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts18 ft-lbs
Engine Oil Pan Drain Plug15.0 ft-lbs
Engine Valve Cover Bolts8.0 ft-lbs

Chassis torques

Lug Nuts100 ft-lbs
Rear Wheel Hub151 ft-lbs

Ignition

Cylinder Firing Order1-2-7-3-4-5-6-8
Spark Plug ManufacturerAC Delco
Spark Plug TypeGM-part number 12571533
Spark Plug Gap0.040 in
Spark Plug Torque11.0 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.40 lbs
Oil GroupPAG
Oil Type46
Oil Capacity5.00 oz
Standard BCI Group Number86
Standard BCI Cranking Performance590 cca

Service checks

Pressure Test15, Pressure should not exceed 20 psi.
Radiator Cap Pressure Relief18 psi
Thermostat Opening Temperature188-206 °F
Key ON Engine OFF (KOEO)41-47
Injector Primary Resistance11-14 @ 50-90 degreesF ohms
Engine Compression140

Brakes

Torque Caliper to Bracket23 ft-lbs
Torque to Knuckle125 ft-lbs
Minimum Pad ThicknessFront: 0.030; Rear: 0.030 specification
Rotor Max Parallel Variation0.001 in
Rotor Runout Limit0.002 in
Rotor Nominal Thickness From1.26 in / 1.024 in
Rotor Nominal Thickness To1.26 in / 1.024 in
Rotor Minimum Machining1.205 in / 0.98 in

Multi-step torque procedures OEM · verified

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
137 ft. lbs., step 2: 12037 ft. lbs
Cylinder Head — tightening sequence 4 stages

Prep Note: Ensure replacement M11 cylinder head bolts are of the same thread, pitch as original cylinder bolts to prevent engine damage., Bolts with a 1.5 mm thread pitch have a thread length of 1.89 inches (48 mm)., Bolts with a 2.0 mm thread pitch have a thread length of 2.638 inches (67 mm). Step 1: M11 bolts: 22 ft. lbs.

2M11 bolts60 degrees
3M11 bolts60 degrees
4M11 bolts60 degrees
58.9

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 100,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 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 50,000 miEngine Air Filter Element (replace) · Fuel System (inspect)
Every 100,000 miExhaust System (Complete) (inspect) · Spark Plugs (replace) · Transmission Fluid & Filter (replace)
At 150,000 miAccessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)

Reliability & federal safety record

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

Federal data positions the 2005 model year near the beginning of a sharp improvement curve, carrying 31 complaints and 3 recalls compared to 2004’s 34 complaints and 5 recalls, yet remaining significantly above the single-digit complaint volumes and single recall characteristic of 2006 through 2009. This trajectory coincides with steadily rising Technical Service Bulletins—from 571 in 2004 to 966 by 2009—suggesting 2005 represents an early production phase where dealer service experience was still accumulating while manufacturing defects were being actively identified and remedied. While the 2005 model records zero crash or fire complaints, its dominant complaint category—Structure with 11 filings—indicates potential bodywork concerns the data does not specify further, alongside minor Exterior Lighting and Fuel System reports. Given that 2006-2009 model years demonstrate markedly lower complaint rates and reduced recall activity, settling at one recall annually versus the 2005’s three, buyers seeking the most mature iteration of this generation should prioritize 2006 or newer, though the 2005 remains viable if purchase price reflects its earlier position in the reliability arc and documented structural concerns are professionally inspected.

3
Open recalls
NHTSA campaigns
589
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
31
Owner complaints
0 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 31 complaints on record, top 8 components.

Structure11
Exterior Lighting3
Fuel System, Gasoline3
Unknown Or Other2
Air Bags2
Fuel/Propulsion System2
Service Brakes,Forward Collision Avoidance1
Structure,Forward Collision Avoidance1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

11E009000Fuel System, Gasoline:Delivery:Fuel PumpReported 28/02/2011

TI AUTOMOTIVE IS RECALLING CERTAIN FUEL PUMPS, PART NUMBERS TU456 AND TU303, SOLD UNDER VARIOUS BRAND NAMES AS AFTERMARKET AND REPLACEMENT EQUIPMENT FOR THE MOTOR VEHICLES LISTED ABOVE. THE DEFECTIVE FUEL PUMP MAY… Remedy: TI AUTOMOTIVE WILL NOTIFY OWNERS OF RECORD AND WILL REPLACE ANY DEFECTIVE FUEL PUMP WITH A NEW OR REWORKED FUEL PUMP FREE OF CHARGE. THE SAFETY RECALL BEGAN ON FEBRUARY 22, 2011…

04V525000Service Brakes, Hydraulic:Foundation Components:Hoses, Lines/Piping, And FittingsReported 03/11/2004

CERTAIN PASSENGER VEHICLES WERE PRODUCED WITH ONE OR BOTH REAR BRAKE HYDRAULIC LINES THAT CAN COME IN CONTACT WITH OR BE AFFECTED BY HEAT FROM THE LEFT ENGINE EXHAUST MANIFOLD AND THE LEFT EXHAUST PIPE. THE BRAKE FLUID… Remedy: DEALERS WILL (1) INSPECT THE LEFT ENGINE EXHAUST MANIFOLD CLIP FOR PROPER ALIGNMENT AND PLACEMENT ON THE BODY-MOUNTED STUD. IF INCORRECT, THEY WILL REPOSITION THE CLIP ON THE…

Technical service bulletins NHTSA · verified

Showing 5 of 589 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…
23-NA-0012025-03-28Electrical SystemThis service bulletin provides information for dealers/technicians on OnStar Module 2G…

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 XLR. 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 2005 XLR take?

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

Does the 2005 XLR have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the XLR get?

EPA figures are 15 city / 23 highway / 18 combined mpg.