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2018 Audi TT Roadster

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 TT Roadster.

Transmission Automatic (AM-S6)

The 2018 Audi TT Roadster is the convertible-bodied member of the TT range for this model year, equipped with an AM-S6 automatic transmission and EPA ratings of 23 mpg city, 30 mpg highway, and 26 mpg combined. Its routine oil service is specified at 6.0 quarts of 5W-40 viscosity oil, giving researchers a precise maintenance anchor alongside the drivetrain and efficiency numbers. Since the reference data does not extend to reliability history, the 2018 model should be treated as a specification-defined baseline: a car whose ownership calculus starts with its documented transmission, fuel economy, and lubrication requirements rather than with any broader durability narrative.

Model year2018 2016

Quick specs

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

Engine oil capacity6.0 qtOEM · verified

Engine oil type5W-40OEM · verified

Lug nut torque89 ft-lbsOEM · verified

EPA fuel economy23/30/26 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 07K115441. 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.

Tire sizeP245/45R17, P245/40R18, P245/35R19, P255/30R20,OEM · verified

OE service part numbers OEM · verified

Engine oil filter	07K115441 alt 06L115562B
Engine air filter	5Q0129620B
Spark plug	06K905601B
Battery	000915089G alt 000915089BE
Front wiper blades	8S1998002
Cabin air filter	5Q0819669

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic (AM-S6)

Dimensions & weight NHTSA vPIC

Overall length	164.6 in
Overall width	72 in
Overall height	53.1 in
Wheelbase	98.8 in
Curb weight	3373 lb
Track (front / rear)	61.8 / 61 in
Weight distribution (front / rear)	59/41

Ratings & economy EPA / vPIC

EPA city / highway / combined	23 / 30 / 26 mpg
Drivetrain	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 6.0 qt of 5W-40 engine oil, Use Audi/VW part number G052145A1 in the differential, DOT 4 brake fluid. Torque lug nuts to 89 ft-lbs. The firing order is 1-3-4-2. 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	Use Audi/VW part number G052182A2
Automatic Transmission Fluid Capacity	5.8
Brake Fluid	DOT 4
Differential Gear Oil	Use Audi/VW part number G052145A1
Differential Gear Oil Capacity	1.9-2.0
Engine Coolant	Use Audi coolant part number G13TL-VW774J
Engine Coolant Capacity	10.5
Engine Oil	5W-40

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)	7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)	7.4 ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)	7.4 ft-lbs
Oxygen (O2S) Sensor Bolt(s)	30.0 ft-lbs
Knock Sense (KS) Bolt(s)	14.75 ft-lbs
Intake Manifold to Engine Bolts	6.6 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	18.4 ft-lbs
Nitrogen Oxide (NOX) Sensor Bolt(s)	35.0 ft-lbs

Chassis torques

Lug Nuts

89 ft-lbs

Ignition

Cylinder Firing Order	1-3-4-2
Spark Plug Manufacturer	Audi
Spark Plug Torque	22 ft-lbs

Service checks

Engine Compression

159-203 psi @ RPM / Maximum Variation 44 psi

Multi-step torque procedures OEM · verified

Front Wheel Hub — tightening sequence 1 stages

148.0 ft. lbs., Step 2: 180.0°

148 ft. lbs

Rear Wheel Hub — tightening sequence 1 stages

148.0 ft. lbs., Step 2: 180.0°

148 ft. lbs

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

Prep Gasoline engines

1	33.0 ft. lbs., Step 2: 90 degrees; Diesel engines	33 ft. lbs
1	22.0 ft. lbs., Step 2: 90	22 ft. lbs

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

110.0 ft. lbs., Step 2: 90

110 ft. lbs

Cylinder Head — tightening sequence 4 stages

Prep Do not re-use old bolts. · Long head bolts

1	Tighten all bolts finger tight.
2	30.0 ft. lbs.	30 ft. lbs
3	90 degrees	90 degrees
4	90 degrees; Short head bolts (located in front of head)	90 degrees
1	3.0 ft. lbs.	3 ft. lbs
2	90 degrees	90 degrees

Engine Flywheel Bolts — tightening sequence 2 stages

1	44.0 ft. lbs.	44 ft. lbs
2	90

Main Bearings — tightening sequence 1 stages

Prep Gas engines · Cap bolts: Step 1: 48.0 ft. lbs., Step 2: 90 degrees, Side bolts: Step 1: 15.0 ft. lbs., Step 2: 90 degrees · Diesel engines

48.0 ft. lbs., Step 2: 90

48 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 10,000 mi; spark plugs every 40,000 mi.

Every 10,000 mi	Brake Linings (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire Repair Kit Sealant (inspect)
Every 20,000 mi	Body Latches, Locks & Hinges (lubricate) · Brake Line (inspect) · Cabin Air Filter (replace) · Drive Axle Assembly (inspect) · Engine Coolant System (inspect fluid level) · Exterior Lighting (inspect)
Every 40,000 mi	Spark Plugs (replace) · Transmission Fluid & Filter (replace)
Every 60,000 mi	Engine Air Filter Element (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.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

0 involved a crash · 0 a fire

No owner complaints on record with NHTSA for this vehicle.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

18V863000Fuel System, Gasoline:Delivery:Hoses, Lines/Piping, And FittingsReported 05/12/2018

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2018 Audi TT Roadster, TT Coupe, A3 Sedan and A3 Cabriolet vehicles. The fuel hose quick connector may detach from the fuel supply line in the engine… Remedy: Volkswagen will notify owners, and dealers will secure the fuel line connection, as necessary, free of charge. The recall began January 11, 2019. Owners may contact Audi customer…

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 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.

Vehicles taking 6.0 qt Engine oil filter 07K115441 Engine air filter 5Q0129620B Spark plug 06K905601B Battery 000915089G

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 2018 TT Roadster take?

6.0 qt of 5W-40 Meeting Audi/VW specification 502 00 or equivalent, per the factory manual.

Does the 2018 TT 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 Roadster get?

EPA figures are 23 city / 30 highway / 26 combined mpg.