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2005 Audi TT/TTS Coupe/Roadster

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2005 TT/TTS Coupe/Roadster.

Body PASSENGER CARTransmission Automatic (S6)

The 2005 Audi TT/TTS Coupe/Roadster is a passenger car offered with an automatic (S6) transmission, and its 4.8-quart oil capacity calls for 5W-30 or 5W-40 API viscosity. EPA fuel economy ratings of 18 city, 27 highway, and 21 combined mpg reflect its era’s efficiency. With 11 total owner complaints—the most common involving the power train—and a single recall, this model year sits in a reliability context that suggests powertrain vigilance is warranted.

Model year201220112010200920062005200420032002

Quick specs

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

Engine oil capacity4.8 qtOEM · verified
Engine oil type5W-30 / 5W-40 APIOEM · verified
Lug nut torque89 ft-lbsOEM · verified
EPA fuel economy18/27/21 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 45 · N/A CCA battery, OE oil filter 06A115561B. Note the factory front wiper blades is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known.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 45 · N/A CCAOEM · verified
Tail / brake / turnTURNOEM · verified
Tire size225-45R17OEM · verified

OE service part numbers OEM · verified

Engine oil filter06A115561B alt 066115111A
Engine air filter1J0129620A alt 1J0129620
Fuel filter1J0201511A
Spark plug101905606A alt 101000063AA
Battery000915089BC alt 000915105AD
Front wiper blades3A1955425 discontinued · alt 8D1955425A
Thermostat050121113B alt 022121113
Cabin air filter1J0819644A

Diagrams

Power distribution wiring4 sheets

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S6)

Ratings & economy EPA / vPIC

EPA city / highway / combined18 / 27 / 21 mpg
DrivetrainFront-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 4.8 qt of 5W-30 / 5W-40 API engine oil, DOT 4 brake fluid. Torque lug nuts to 89 ft-lbs, the oil drain plug to 18.4 ft-lbs. The firing order is 1-5-3-6-2-4. 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 FluidAudi part number G055025A2
Automatic Transmission Fluid Capacity7.4
Brake FluidDOT 4
Differential Gear Oil Capacity2.1 Pints
Engine Oil5W-30 · 5W-40 · API
Engine Oil Capacity4.8 qt
Engine Oil5W-30 · 5W-40 · API
Engine Oil Capacity5.8 qt

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs9 ft-lbs
Intake Manifold to Engine Bolts7.3 ft-lbs
Exhaust Manifold to Cylinder Head Bolts18 ft-lbs
Intake Manifold to Engine Bolts4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts18 ft-lbs
Engine Oil Pan Drain Plug18.4 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs12 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs15 ft-lbs

Chassis torques

Lug Nuts89 ft-lbs
Transfer Case Fill Plug11.0 ft-lbs
Transfer Case Drain PlugBevel box: 44.0, Haldex Clutch: 22.0 ft-lbs
Rear Wheel Hub129 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Cylinder Firing Order1-5-3-6-2-4
Ignition Coil Primary Resistance0.4-0.6 ohms
Ignition Coil Secondary Resistance9000-14,000 ohms
Spark Plug ManufacturerAudi/VW
Spark Plug Gap0.032 in
Spark Plug Torque22 ft-lbs
Spark Plug ManufacturerVW

Battery & A/C

RefrigerantR134a
Oil GroupPAG
Standard BCI Group Number45
Standard BCI Group Number45

Service checks

Pressure Test14.5 psi
Radiator Cap Pressure Relief20-23 psi
Thermostat Opening Temperature176 °F
Pressure Test14.5 psi
Radiator Cap Pressure Relief20-23 psi
Thermostat Opening Temperature188 °F
Engine Compression131

Brakes

Torque Caliper to Bracket18 ft-lbs / 26 ft-lbs
Torque to Knuckle92 ft-lbs / 48 ft-lbs
Rotor Nominal Thickness From1.26 in / 0.984 in / 0.354 in / 0.866 in
Rotor Nominal Thickness To1.26 in / 0.984 in / 0.354 in / 0.866 in
Rotor Discard at or Under1.181 in / 0.906 in / 0.276 in / 0.787 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
122 ft. lbs., Step 2: 9022 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
122 ft. lbs., Step 2: 9022 ft. lbs
Cylinder Head — tightening sequence 4 stages
122 ft. lbs.22 ft. lbs
237 ft. lbs.37 ft. lbs
390 degrees90 degrees
490 degrees90 degrees
Flex or Driveplate Bolts — tightening sequence 1 stages
144 ft. lbs. Step 2: 9044 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
144 ft. lbs., Step 2: 18044 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
144 ft. lbs., Step 2: 9044 ft. lbs
Main Bearings — tightening sequence 1 stages
148 ft. lbs., Step 2: 9048 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 at 35,000 mi.

At 5,000 miBrake System (inspect) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (inspect) · Windshield Washer System (inspect) · Windshield Wiper Linkage (lubricate)
Every 5,000 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate) · Windshield Washer System (inspect fluid level)
Every 10,000 miBrake System (inspect) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (inspect) · Windshield Washer System (inspect) · Windshield Wiper Linkage (lubricate)
At 15,000 miBattery (inspect electrolyte level) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Door Stop (lubricate) · Driveshaft (inspect) · Engine Assembly (leak inspection)
Every 20,000 miBattery (inspect electrolyte level) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Door Stop (lubricate) · Driveshaft (inspect) · Engine Assembly (leak inspection)
At 35,000 miEngine Air Filter Element (replace) · Engine Air Filter Housing (clean) · Power Steering System (inspect fluid level) · Spark Plugs (replace) · Transmission Fluid & Filter (replace)
Every 40,000 miEngine Air Filter Element (replace) · Engine Air Filter Housing (clean) · Power Steering System (inspect fluid level) · Spark Plugs (replace) · Sunroof Assembly (inspect) · Transmission Fluid & Filter (replace)
Every 75,000 miTiming Belt (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.

Owner complaints about the 2005 Audi TT/TTS Coupe/Roadster lead in one area — the power train, 3 of 11 reports (27%), well ahead of the next concern. None of this vehicle's 1 recall campaigns target the power train, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the power train 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.

1
Open recalls
NHTSA campaigns
169
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
11
Owner complaints
0 involved a crash · 0 a fire

Owner complaints filed with NHTSA, by component

All 11 complaints on record, top 8 components.

Power Train3
Air Bags2
Electrical System,Seats1
Air Bags,Vehicle Speed Control,Engine1
Exterior Lighting1
Electrical System,Exterior Lighting1
Engine & Engine Cooling,Electrical System,Exterior Lighting1
Engine & Engine Cooling1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

14E007000Engine And Engine Cooling:EngineReported 07/03/2014

The Gates Corporation (Gates) is recalling certain aftermarket Tru-Flow Water Pumps, part number TFW 41127, sold at certain NAPA Auto Parts and/or installed by automotive service technicians after November 1, 2013 (and… Remedy: Gates will notify owners, and dealers will replace the water pump, free of charge. The recall began during May 2014. Owners may contact The Gates Corporation at 1-303-744-1911.

Technical service bulletins NHTSA · verified

Showing 5 of 169 bulletins on record with NHTSA.

BulletinDateComponentSummary
A0023742052680_42023-10-04EquipmentThis bulletin provides information on the additional reporting requirements for safety…
SM 48-20222022-06-15EquipmentThis special notice is to inform dealers to return the parts listed if it meets the…
SM 32-20222022-04-05EquipmentThis special notice is to inform dealers to return the parts listed if it meets the…
A9122752024323_92022-02-07Electrical SystemThis bulletin contains technical information regarding when the parking aid sporadically…
A0021482021205_62021-06-25StructureThis informational bulletin explains how to order replacement VIN plates, Safety…

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 TT/TTS Coupe/Roadster. 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 45 batteryVehicles taking 4.8 qtEngine oil filter 06A115561BEngine air filter 1J0129620AFuel filter 1J0201511ASpark plug 101905606A

Fuse box & wiring diagrams

Interactive fuse-box and wiring references for this vehicle, searchable by circuit.

Wiring diagrams

Reference guides

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

Vehicle recalls & TSBsOBD-II trouble codesTorque specificationsMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 2005 TT/TTS Coupe/Roadster take?

4.8 qt of 5W-30 OR 5W-40 API MEETING VW SPECIFICATION VW50200, per the factory manual.

Does the 2005 TT/TTS Coupe/Roadster have open recalls?

NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the TT/TTS Coupe/Roadster get?

EPA figures are 18 city / 27 highway / 21 combined mpg.