Audi Maintenance for 1.8T A4 and TT

Audi Service for 1.8T engines 1998-2000

Certain Audi's feature a 1.8T engine that requires more frequent service intervals than it's V6 and V8 counterparts. The 1998 A4 was the first Audi to feature the 1.8T, joined by the TT in Quattro in 2000.

To give your 1.8T engine Audi the best care possible, your maintenance schedule will follow different Audi servicing requirements and intervals than other models from the same years. Please follow the schedule below. You will need service every 5,000 miles:

Audi Service for 1.8T engines at 5,000 Miles:

  • Change your oil and oil filter,
  • Check fluid levels,
  • Check auto-shift lock,
  • Check shift and clutch interlock if you have a manual transmission,
  • Rotate wheels, and
  • Reset your service reminder (all models except the Cabriolet).

Audi Service for 1.8T engines at 10,000 miles:

Maintenance at 10,000 miles for your 1.8t engine includes all of the elements of the 5,000 mile maintenance service except for tire rotation. In addition to these tasks, you'll also need to:

  • Check battery level,
  • Replace the dust and pollen filter,
  • Check cooling system levels,
  • Check and add fluid (if necessary) to your W/W System,
  • Clean and lube rails on sliding roofs,
  • Check transmission for leaks,
  • Check lubricants in trans final drives,
  • Check brakes and drive shaft boots,
  • Check condition and pressure of all tires, including the spare,
  • Check DTC memory,
  • Check and adjust exterior lights, and
  • Lubricate door hinges.

You will need to schedule this same service every 20,000 miles (10,000, 30,000, 50,000, etc). At 30,000 miles you will also need to replace your spark plugs. This will also apply at every equally spaced, subsequent interval (60,000, 90,000, etc).

Audi Service for 1.8T engines at 15,000 Miles

Every 15,000 miles and subsequent 10,000 mile interval (25,000, 35,000, etc) you will need to complete all of the tasks from the 5,000 mile Audi servicing checklist except for the oil filter replacement and tire rotation.

Audi Service for 1.8T engines at 20,000 Miles

At 20,000 miles you will complete all of the tasks included in the 10,000 mile maintenance as well as:

  • Replace air cleaner,
  • Check dust seals, ball joints, and tie rod ends, and
  • Replace brake fluid.

You will need to schedule this service every 20,000 miles. At every other 20,000 mile appointment, i.e. 40,000 and 80,000 miles, you will also need to have your timing belt inspected. At 80,000 miles and every 80,000 mile interval after that, you will also want to replace your ribbed belt and v-belt.