Models · Audi
Audi TT Mk1 8N buying guide
The first TT, built from 1998 to 2006, was sold as a coupé and roadster with a 1.8 turbo four-cylinder in several outputs or a 3.2 VR6, in front-wheel drive or quattro form. It's a design classic with well-known, checkable faults.
The versions
- 1.8T turbo petrol: 150PS front-wheel drive and 180PS front-wheel drive or quattro, uprated to 163PS and 190PS in 2005
- 1.8T 225PS quattro with a 6-speed manual, and the 240PS quattro Sport (2005)
- 3.2 VR6 quattro, 250PS, offered with the DSG dual-clutch gearbox
- 5-speed or 6-speed manual depending on version
- Coupé and roadster bodies; there was no TTS in this generation
What to check on a Mk1 TT
3 model-specific things to look at when you view one. They're a starting point, not the full inspection.
Cambelt and water pump on the 1.8T
What to look for: Look in the history for the date and mileage of the last cambelt change, and check whether the water pump was changed with it.
Why it matters: The 1.8T has a cambelt, and specialists recommend renewing it with the tensioners and water pump at around 60,000 to 80,000 miles or five to six years. Water pumps fail on this engine, and replacements with a metal impeller are the ones to look for on the invoice.
The instrument cluster
What to look for: With the ignition on, look at the small display between the dials for missing pixels, and watch that the fuel and temperature gauges read sensibly once warm.
Why it matters: Pixel failure in the display is common, and a failing cluster can also give wrong fuel and temperature readings. Specialists recondition them.
Misfires and coil packs
What to look for: Listen for an uneven idle once warm, and on the drive feel for hesitation or a flashing engine light under load.
Why it matters: Ignition coil packs are a known failure on the 1.8T, and a failing air flow meter can give similar symptoms. Both are straightforward replacements.
Also in the full guide
- Boost leaks on the 1.8T
- Haldex servicing on quattro models
- DSG and the VR6 chain
- The stability update
- The cold start, test drive and paperwork checks for the exact version you're viewing
The full guide to the Mk1 TT
The CrankSight guide walks you round the car on your phone at the viewing, with every check for the exact version you're looking at: what to look for, where to find it, and what anything you find is likely to cost. As you go it builds an assessment of that car, and if you view more than one, it lines them up side by side.
£29 for the model, used on as many cars as you like, delivered within 72 hours or your money back.
Other generations
General points for the model, last checked October 2026. Every car is different, so treat this as a guide to what to look at, not a verdict on any car. CrankSight is independent and has no connection with Audi.